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a=rsa-sha256; c=relaxed/relaxed; d=Analogixsemi.onmicrosoft.com; s=selector1-Analogixsemi-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=yi3lOaRNjpTrmFmXdYl/PQ0NsVeyKNC+ASElXEGpzKo=; b=Kf9Re21qrukDSujO5dAsU6IXENEmYEIBG7zJWGdJ6mTGNFoBM5hjAzM55pWH8ylWkaNP/BCUmuEhL8X6RrPV7mDvqqsEmv7NxS9Dgyui7RNXSSKljWPo6JNONyryYjoRm7NkRGpKN9F5NFFDm4oGKiE40ARKGtS23ue0uRRpbPA= X-Mailman-Original-Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=xji@analogixsemi.com; X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: David Airlie , "linux-kernel@vger.kernel.org" , "dri-devel@lists.freedesktop.org" , "sjoerd.simons@collabora.co.uk" , Laurent Pinchart , Sheng Pan Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP Move analogix chip ANX78XX bridge driver into "analogix" directory. Signed-off-by: Xin Ji --- drivers/gpu/drm/bridge/Kconfig | 10 - drivers/gpu/drm/bridge/Makefile | 3 +- drivers/gpu/drm/bridge/analogix-anx78xx.c | 1485 -------------------- drivers/gpu/drm/bridge/analogix-anx78xx.h | 710 ---------- drivers/gpu/drm/bridge/analogix/Kconfig | 10 + drivers/gpu/drm/bridge/analogix/Makefile | 2 + drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c | 1485 ++++++++++++++++++++ drivers/gpu/drm/bridge/analogix/analogix-anx78xx.h | 710 ++++++++++ 8 files changed, 2208 insertions(+), 2207 deletions(-) delete mode 100644 drivers/gpu/drm/bridge/analogix-anx78xx.c delete mode 100644 drivers/gpu/drm/bridge/analogix-anx78xx.h create mode 100644 drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c create mode 100644 drivers/gpu/drm/bridge/analogix/analogix-anx78xx.h diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig index ee77746..862789b 100644 --- a/drivers/gpu/drm/bridge/Kconfig +++ b/drivers/gpu/drm/bridge/Kconfig @@ -16,16 +16,6 @@ config DRM_PANEL_BRIDGE menu "Display Interface Bridges" depends on DRM && DRM_BRIDGE -config DRM_ANALOGIX_ANX78XX - tristate "Analogix ANX78XX bridge" - select DRM_KMS_HELPER - select REGMAP_I2C - ---help--- - ANX78XX is an ultra-low Full-HD SlimPort transmitter - designed for portable devices. The ANX78XX transforms - the HDMI output of an application processor to MyDP - or DisplayPort. - config DRM_CDNS_DSI tristate "Cadence DPI/DSI bridge" select DRM_KMS_HELPER diff --git a/drivers/gpu/drm/bridge/Makefile b/drivers/gpu/drm/bridge/Makefile index 4934fcf..02cb4cd 100644 --- a/drivers/gpu/drm/bridge/Makefile +++ b/drivers/gpu/drm/bridge/Makefile @@ -1,5 +1,4 @@ # SPDX-License-Identifier: GPL-2.0 -obj-$(CONFIG_DRM_ANALOGIX_ANX78XX) += analogix-anx78xx.o obj-$(CONFIG_DRM_CDNS_DSI) += cdns-dsi.o obj-$(CONFIG_DRM_DUMB_VGA_DAC) += dumb-vga-dac.o obj-$(CONFIG_DRM_LVDS_ENCODER) += lvds-encoder.o @@ -12,8 +11,8 @@ obj-$(CONFIG_DRM_SII9234) += sii9234.o obj-$(CONFIG_DRM_THINE_THC63LVD1024) += thc63lvd1024.o obj-$(CONFIG_DRM_TOSHIBA_TC358764) += tc358764.o obj-$(CONFIG_DRM_TOSHIBA_TC358767) += tc358767.o -obj-$(CONFIG_DRM_ANALOGIX_DP) += analogix/ obj-$(CONFIG_DRM_I2C_ADV7511) += adv7511/ obj-$(CONFIG_DRM_TI_SN65DSI86) += ti-sn65dsi86.o obj-$(CONFIG_DRM_TI_TFP410) += ti-tfp410.o obj-y += synopsys/ +obj-y += analogix/ diff --git a/drivers/gpu/drm/bridge/analogix-anx78xx.c b/drivers/gpu/drm/bridge/analogix-anx78xx.c deleted file mode 100644 index 3c7cc5a..0000000 --- a/drivers/gpu/drm/bridge/analogix-anx78xx.c +++ /dev/null @@ -1,1485 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright(c) 2016, Analogix Semiconductor. - * - * Based on anx7808 driver obtained from chromeos with copyright: - * Copyright(c) 2013, Google Inc. - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include - -#include "analogix-anx78xx.h" - -#define I2C_NUM_ADDRESSES 5 -#define I2C_IDX_TX_P0 0 -#define I2C_IDX_TX_P1 1 -#define I2C_IDX_TX_P2 2 -#define I2C_IDX_RX_P0 3 -#define I2C_IDX_RX_P1 4 - -#define XTAL_CLK 270 /* 27M */ -#define AUX_CH_BUFFER_SIZE 16 -#define AUX_WAIT_TIMEOUT_MS 15 - -static const u8 anx78xx_i2c_addresses[] = { - [I2C_IDX_TX_P0] = TX_P0, - [I2C_IDX_TX_P1] = TX_P1, - [I2C_IDX_TX_P2] = TX_P2, - [I2C_IDX_RX_P0] = RX_P0, - [I2C_IDX_RX_P1] = RX_P1, -}; - -struct anx78xx_platform_data { - struct regulator *dvdd10; - struct gpio_desc *gpiod_hpd; - struct gpio_desc *gpiod_pd; - struct gpio_desc *gpiod_reset; - - int hpd_irq; - int intp_irq; -}; - -struct anx78xx { - struct drm_dp_aux aux; - struct drm_bridge bridge; - struct i2c_client *client; - struct edid *edid; - struct drm_connector connector; - struct drm_dp_link link; - struct anx78xx_platform_data pdata; - struct mutex lock; - - /* - * I2C Slave addresses of ANX7814 are mapped as TX_P0, TX_P1, TX_P2, - * RX_P0 and RX_P1. - */ - struct i2c_client *i2c_dummy[I2C_NUM_ADDRESSES]; - struct regmap *map[I2C_NUM_ADDRESSES]; - - u16 chipid; - u8 dpcd[DP_RECEIVER_CAP_SIZE]; - - bool powered; -}; - -static inline struct anx78xx *connector_to_anx78xx(struct drm_connector *c) -{ - return container_of(c, struct anx78xx, connector); -} - -static inline struct anx78xx *bridge_to_anx78xx(struct drm_bridge *bridge) -{ - return container_of(bridge, struct anx78xx, bridge); -} - -static int anx78xx_set_bits(struct regmap *map, u8 reg, u8 mask) -{ - return regmap_update_bits(map, reg, mask, mask); -} - -static int anx78xx_clear_bits(struct regmap *map, u8 reg, u8 mask) -{ - return regmap_update_bits(map, reg, mask, 0); -} - -static bool anx78xx_aux_op_finished(struct anx78xx *anx78xx) -{ - unsigned int value; - int err; - - err = regmap_read(anx78xx->map[I2C_IDX_TX_P0], SP_DP_AUX_CH_CTRL2_REG, - &value); - if (err < 0) - return false; - - return (value & SP_AUX_EN) == 0; -} - -static int anx78xx_aux_wait(struct anx78xx *anx78xx) -{ - unsigned long timeout; - unsigned int status; - int err; - - timeout = jiffies + msecs_to_jiffies(AUX_WAIT_TIMEOUT_MS) + 1; - - while (!anx78xx_aux_op_finished(anx78xx)) { - if (time_after(jiffies, timeout)) { - if (!anx78xx_aux_op_finished(anx78xx)) { - DRM_ERROR("Timed out waiting AUX to finish\n"); - return -ETIMEDOUT; - } - - break; - } - - usleep_range(1000, 2000); - } - - /* Read the AUX channel access status */ - err = regmap_read(anx78xx->map[I2C_IDX_TX_P0], SP_AUX_CH_STATUS_REG, - &status); - if (err < 0) { - DRM_ERROR("Failed to read from AUX channel: %d\n", err); - return err; - } - - if (status & SP_AUX_STATUS) { - DRM_ERROR("Failed to wait for AUX channel (status: %02x)\n", - status); - return -ETIMEDOUT; - } - - return 0; -} - -static int anx78xx_aux_address(struct anx78xx *anx78xx, unsigned int addr) -{ - int err; - - err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], SP_AUX_ADDR_7_0_REG, - addr & 0xff); - if (err) - return err; - - err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], SP_AUX_ADDR_15_8_REG, - (addr & 0xff00) >> 8); - if (err) - return err; - - /* - * DP AUX CH Address Register #2, only update bits[3:0] - * [7:4] RESERVED - * [3:0] AUX_ADDR[19:16], Register control AUX CH address. - */ - err = regmap_update_bits(anx78xx->map[I2C_IDX_TX_P0], - SP_AUX_ADDR_19_16_REG, - SP_AUX_ADDR_19_16_MASK, - (addr & 0xf0000) >> 16); - - if (err) - return err; - - return 0; -} - -static ssize_t anx78xx_aux_transfer(struct drm_dp_aux *aux, - struct drm_dp_aux_msg *msg) -{ - struct anx78xx *anx78xx = container_of(aux, struct anx78xx, aux); - u8 ctrl1 = msg->request; - u8 ctrl2 = SP_AUX_EN; - u8 *buffer = msg->buffer; - int err; - - /* The DP AUX transmit and receive buffer has 16 bytes. */ - if (WARN_ON(msg->size > AUX_CH_BUFFER_SIZE)) - return -E2BIG; - - /* Zero-sized messages specify address-only transactions. */ - if (msg->size < 1) - ctrl2 |= SP_ADDR_ONLY; - else /* For non-zero-sized set the length field. */ - ctrl1 |= (msg->size - 1) << SP_AUX_LENGTH_SHIFT; - - if ((msg->request & DP_AUX_I2C_READ) == 0) { - /* When WRITE | MOT write values to data buffer */ - err = regmap_bulk_write(anx78xx->map[I2C_IDX_TX_P0], - SP_DP_BUF_DATA0_REG, buffer, - msg->size); - if (err) - return err; - } - - /* Write address and request */ - err = anx78xx_aux_address(anx78xx, msg->address); - if (err) - return err; - - err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], SP_DP_AUX_CH_CTRL1_REG, - ctrl1); - if (err) - return err; - - /* Start transaction */ - err = regmap_update_bits(anx78xx->map[I2C_IDX_TX_P0], - SP_DP_AUX_CH_CTRL2_REG, SP_ADDR_ONLY | - SP_AUX_EN, ctrl2); - if (err) - return err; - - err = anx78xx_aux_wait(anx78xx); - if (err) - return err; - - msg->reply = DP_AUX_I2C_REPLY_ACK; - - if ((msg->size > 0) && (msg->request & DP_AUX_I2C_READ)) { - /* Read values from data buffer */ - err = regmap_bulk_read(anx78xx->map[I2C_IDX_TX_P0], - SP_DP_BUF_DATA0_REG, buffer, - msg->size); - if (err) - return err; - } - - err = anx78xx_clear_bits(anx78xx->map[I2C_IDX_TX_P0], - SP_DP_AUX_CH_CTRL2_REG, SP_ADDR_ONLY); - if (err) - return err; - - return msg->size; -} - -static int anx78xx_set_hpd(struct anx78xx *anx78xx) -{ - int err; - - err = anx78xx_clear_bits(anx78xx->map[I2C_IDX_RX_P0], - SP_TMDS_CTRL_BASE + 7, SP_PD_RT); - if (err) - return err; - - err = anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P2], SP_VID_CTRL3_REG, - SP_HPD_OUT); - if (err) - return err; - - return 0; -} - -static int anx78xx_clear_hpd(struct anx78xx *anx78xx) -{ - int err; - - err = anx78xx_clear_bits(anx78xx->map[I2C_IDX_TX_P2], SP_VID_CTRL3_REG, - SP_HPD_OUT); - if (err) - return err; - - err = anx78xx_set_bits(anx78xx->map[I2C_IDX_RX_P0], - SP_TMDS_CTRL_BASE + 7, SP_PD_RT); - if (err) - return err; - - return 0; -} - -static const struct reg_sequence tmds_phy_initialization[] = { - { SP_TMDS_CTRL_BASE + 1, 0x90 }, - { SP_TMDS_CTRL_BASE + 2, 0xa9 }, - { SP_TMDS_CTRL_BASE + 6, 0x92 }, - { SP_TMDS_CTRL_BASE + 7, 0x80 }, - { SP_TMDS_CTRL_BASE + 20, 0xf2 }, - { SP_TMDS_CTRL_BASE + 22, 0xc4 }, - { SP_TMDS_CTRL_BASE + 23, 0x18 }, -}; - -static int anx78xx_rx_initialization(struct anx78xx *anx78xx) -{ - int err; - - err = regmap_write(anx78xx->map[I2C_IDX_RX_P0], SP_HDMI_MUTE_CTRL_REG, - SP_AUD_MUTE | SP_VID_MUTE); - if (err) - return err; - - err = anx78xx_set_bits(anx78xx->map[I2C_IDX_RX_P0], SP_CHIP_CTRL_REG, - SP_MAN_HDMI5V_DET | SP_PLLLOCK_CKDT_EN | - SP_DIGITAL_CKDT_EN); - if (err) - return err; - - err = anx78xx_set_bits(anx78xx->map[I2C_IDX_RX_P0], - SP_SOFTWARE_RESET1_REG, SP_HDCP_MAN_RST | - SP_SW_MAN_RST | SP_TMDS_RST | SP_VIDEO_RST); - if (err) - return err; - - err = anx78xx_clear_bits(anx78xx->map[I2C_IDX_RX_P0], - SP_SOFTWARE_RESET1_REG, SP_HDCP_MAN_RST | - SP_SW_MAN_RST | SP_TMDS_RST | SP_VIDEO_RST); - if (err) - return err; - - /* Sync detect change, GP set mute */ - err = anx78xx_set_bits(anx78xx->map[I2C_IDX_RX_P0], - SP_AUD_EXCEPTION_ENABLE_BASE + 1, BIT(5) | - BIT(6)); - if (err) - return err; - - err = anx78xx_set_bits(anx78xx->map[I2C_IDX_RX_P0], - SP_AUD_EXCEPTION_ENABLE_BASE + 3, - SP_AEC_EN21); - if (err) - return err; - - err = anx78xx_set_bits(anx78xx->map[I2C_IDX_RX_P0], SP_AUDVID_CTRL_REG, - SP_AVC_EN | SP_AAC_OE | SP_AAC_EN); - if (err) - return err; - - err = anx78xx_clear_bits(anx78xx->map[I2C_IDX_RX_P0], - SP_SYSTEM_POWER_DOWN1_REG, SP_PWDN_CTRL); - if (err) - return err; - - err = anx78xx_set_bits(anx78xx->map[I2C_IDX_RX_P0], - SP_VID_DATA_RANGE_CTRL_REG, SP_R2Y_INPUT_LIMIT); - if (err) - return err; - - /* Enable DDC stretch */ - err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], - SP_DP_EXTRA_I2C_DEV_ADDR_REG, SP_I2C_EXTRA_ADDR); - if (err) - return err; - - /* TMDS phy initialization */ - err = regmap_multi_reg_write(anx78xx->map[I2C_IDX_RX_P0], - tmds_phy_initialization, - ARRAY_SIZE(tmds_phy_initialization)); - if (err) - return err; - - err = anx78xx_clear_hpd(anx78xx); - if (err) - return err; - - return 0; -} - -static const u8 dp_tx_output_precise_tune_bits[20] = { - 0x01, 0x03, 0x07, 0x7f, 0x71, 0x6b, 0x7f, - 0x73, 0x7f, 0x7f, 0x00, 0x00, 0x00, 0x00, - 0x0c, 0x42, 0x1e, 0x3e, 0x72, 0x7e, -}; - -static int anx78xx_link_phy_initialization(struct anx78xx *anx78xx) -{ - int err; - - /* - * REVISIT : It is writing to a RESERVED bits in Analog Control 0 - * register. - */ - err = regmap_write(anx78xx->map[I2C_IDX_TX_P2], SP_ANALOG_CTRL0_REG, - 0x02); - if (err) - return err; - - /* - * Write DP TX output emphasis precise tune bits. - */ - err = regmap_bulk_write(anx78xx->map[I2C_IDX_TX_P1], - SP_DP_TX_LT_CTRL0_REG, - dp_tx_output_precise_tune_bits, - ARRAY_SIZE(dp_tx_output_precise_tune_bits)); - - if (err) - return err; - - return 0; -} - -static int anx78xx_xtal_clk_sel(struct anx78xx *anx78xx) -{ - unsigned int value; - int err; - - err = regmap_update_bits(anx78xx->map[I2C_IDX_TX_P2], - SP_ANALOG_DEBUG2_REG, - SP_XTAL_FRQ | SP_FORCE_SW_OFF_BYPASS, - SP_XTAL_FRQ_27M); - if (err) - return err; - - err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], SP_DP_AUX_CH_CTRL3_REG, - XTAL_CLK & SP_WAIT_COUNTER_7_0_MASK); - if (err) - return err; - - err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], SP_DP_AUX_CH_CTRL4_REG, - ((XTAL_CLK & 0xff00) >> 2) | (XTAL_CLK / 10)); - if (err) - return err; - - err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], - SP_I2C_GEN_10US_TIMER0_REG, XTAL_CLK & 0xff); - if (err) - return err; - - err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], - SP_I2C_GEN_10US_TIMER1_REG, - (XTAL_CLK & 0xff00) >> 8); - if (err) - return err; - - err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], SP_AUX_MISC_CTRL_REG, - XTAL_CLK / 10 - 1); - if (err) - return err; - - err = regmap_read(anx78xx->map[I2C_IDX_RX_P0], - SP_HDMI_US_TIMER_CTRL_REG, - &value); - if (err) - return err; - - err = regmap_write(anx78xx->map[I2C_IDX_RX_P0], - SP_HDMI_US_TIMER_CTRL_REG, - (value & SP_MS_TIMER_MARGIN_10_8_MASK) | - ((((XTAL_CLK / 10) >> 1) - 2) << 3)); - if (err) - return err; - - return 0; -} - -static const struct reg_sequence otp_key_protect[] = { - { SP_OTP_KEY_PROTECT1_REG, SP_OTP_PSW1 }, - { SP_OTP_KEY_PROTECT2_REG, SP_OTP_PSW2 }, - { SP_OTP_KEY_PROTECT3_REG, SP_OTP_PSW3 }, -}; - -static int anx78xx_tx_initialization(struct anx78xx *anx78xx) -{ - int err; - - /* Set terminal resistor to 50 ohm */ - err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], SP_DP_AUX_CH_CTRL2_REG, - 0x30); - if (err) - return err; - - /* Enable aux double diff output */ - err = anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P0], - SP_DP_AUX_CH_CTRL2_REG, 0x08); - if (err) - return err; - - err = anx78xx_clear_bits(anx78xx->map[I2C_IDX_TX_P0], - SP_DP_HDCP_CTRL_REG, SP_AUTO_EN | - SP_AUTO_START); - if (err) - return err; - - err = regmap_multi_reg_write(anx78xx->map[I2C_IDX_TX_P0], - otp_key_protect, - ARRAY_SIZE(otp_key_protect)); - if (err) - return err; - - err = anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P0], - SP_HDCP_KEY_COMMAND_REG, SP_DISABLE_SYNC_HDCP); - if (err) - return err; - - err = regmap_write(anx78xx->map[I2C_IDX_TX_P2], SP_VID_CTRL8_REG, - SP_VID_VRES_TH); - if (err) - return err; - - /* - * DP HDCP auto authentication wait timer (when downstream starts to - * auth, DP side will wait for this period then do auth automatically) - */ - err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], SP_HDCP_AUTO_TIMER_REG, - 0x00); - if (err) - return err; - - err = anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P0], - SP_DP_HDCP_CTRL_REG, SP_LINK_POLLING); - if (err) - return err; - - err = anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P0], - SP_DP_LINK_DEBUG_CTRL_REG, SP_M_VID_DEBUG); - if (err) - return err; - - err = anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P2], - SP_ANALOG_DEBUG2_REG, SP_POWERON_TIME_1P5MS); - if (err) - return err; - - err = anx78xx_xtal_clk_sel(anx78xx); - if (err) - return err; - - err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], SP_AUX_DEFER_CTRL_REG, - SP_DEFER_CTRL_EN | 0x0c); - if (err) - return err; - - err = anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P0], - SP_DP_POLLING_CTRL_REG, - SP_AUTO_POLLING_DISABLE); - if (err) - return err; - - /* - * Short the link integrity check timer to speed up bstatus - * polling for HDCP CTS item 1A-07 - */ - err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], - SP_HDCP_LINK_CHECK_TIMER_REG, 0x1d); - if (err) - return err; - - err = anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P0], - SP_DP_MISC_CTRL_REG, SP_EQ_TRAINING_LOOP); - if (err) - return err; - - /* Power down the main link by default */ - err = anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P0], - SP_DP_ANALOG_POWER_DOWN_REG, SP_CH0_PD); - if (err) - return err; - - err = anx78xx_link_phy_initialization(anx78xx); - if (err) - return err; - - /* Gen m_clk with downspreading */ - err = anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P0], - SP_DP_M_CALCULATION_CTRL_REG, SP_M_GEN_CLK_SEL); - if (err) - return err; - - return 0; -} - -static int anx78xx_enable_interrupts(struct anx78xx *anx78xx) -{ - int err; - - /* - * BIT0: INT pin assertion polarity: 1 = assert high - * BIT1: INT pin output type: 0 = push/pull - */ - err = regmap_write(anx78xx->map[I2C_IDX_TX_P2], SP_INT_CTRL_REG, 0x01); - if (err) - return err; - - err = regmap_write(anx78xx->map[I2C_IDX_TX_P2], - SP_COMMON_INT_MASK4_REG, SP_HPD_LOST | SP_HPD_PLUG); - if (err) - return err; - - err = regmap_write(anx78xx->map[I2C_IDX_TX_P2], SP_DP_INT_MASK1_REG, - SP_TRAINING_FINISH); - if (err) - return err; - - err = regmap_write(anx78xx->map[I2C_IDX_RX_P0], SP_INT_MASK1_REG, - SP_CKDT_CHG | SP_SCDT_CHG); - if (err) - return err; - - return 0; -} - -static void anx78xx_poweron(struct anx78xx *anx78xx) -{ - struct anx78xx_platform_data *pdata = &anx78xx->pdata; - int err; - - if (WARN_ON(anx78xx->powered)) - return; - - if (pdata->dvdd10) { - err = regulator_enable(pdata->dvdd10); - if (err) { - DRM_ERROR("Failed to enable DVDD10 regulator: %d\n", - err); - return; - } - - usleep_range(1000, 2000); - } - - gpiod_set_value_cansleep(pdata->gpiod_reset, 1); - usleep_range(1000, 2000); - - gpiod_set_value_cansleep(pdata->gpiod_pd, 0); - usleep_range(1000, 2000); - - gpiod_set_value_cansleep(pdata->gpiod_reset, 0); - - /* Power on registers module */ - anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P2], SP_POWERDOWN_CTRL_REG, - SP_HDCP_PD | SP_AUDIO_PD | SP_VIDEO_PD | SP_LINK_PD); - anx78xx_clear_bits(anx78xx->map[I2C_IDX_TX_P2], SP_POWERDOWN_CTRL_REG, - SP_REGISTER_PD | SP_TOTAL_PD); - - anx78xx->powered = true; -} - -static void anx78xx_poweroff(struct anx78xx *anx78xx) -{ - struct anx78xx_platform_data *pdata = &anx78xx->pdata; - int err; - - if (WARN_ON(!anx78xx->powered)) - return; - - gpiod_set_value_cansleep(pdata->gpiod_reset, 1); - usleep_range(1000, 2000); - - gpiod_set_value_cansleep(pdata->gpiod_pd, 1); - usleep_range(1000, 2000); - - if (pdata->dvdd10) { - err = regulator_disable(pdata->dvdd10); - if (err) { - DRM_ERROR("Failed to disable DVDD10 regulator: %d\n", - err); - return; - } - - usleep_range(1000, 2000); - } - - anx78xx->powered = false; -} - -static int anx78xx_start(struct anx78xx *anx78xx) -{ - int err; - - /* Power on all modules */ - err = anx78xx_clear_bits(anx78xx->map[I2C_IDX_TX_P2], - SP_POWERDOWN_CTRL_REG, - SP_HDCP_PD | SP_AUDIO_PD | SP_VIDEO_PD | - SP_LINK_PD); - - err = anx78xx_enable_interrupts(anx78xx); - if (err) { - DRM_ERROR("Failed to enable interrupts: %d\n", err); - goto err_poweroff; - } - - err = anx78xx_rx_initialization(anx78xx); - if (err) { - DRM_ERROR("Failed receiver initialization: %d\n", err); - goto err_poweroff; - } - - err = anx78xx_tx_initialization(anx78xx); - if (err) { - DRM_ERROR("Failed transmitter initialization: %d\n", err); - goto err_poweroff; - } - - /* - * This delay seems to help keep the hardware in a good state. Without - * it, there are times where it fails silently. - */ - usleep_range(10000, 15000); - - return 0; - -err_poweroff: - DRM_ERROR("Failed SlimPort transmitter initialization: %d\n", err); - anx78xx_poweroff(anx78xx); - - return err; -} - -static int anx78xx_init_pdata(struct anx78xx *anx78xx) -{ - struct anx78xx_platform_data *pdata = &anx78xx->pdata; - struct device *dev = &anx78xx->client->dev; - - /* 1.0V digital core power regulator */ - pdata->dvdd10 = devm_regulator_get(dev, "dvdd10"); - if (IS_ERR(pdata->dvdd10)) { - DRM_ERROR("DVDD10 regulator not found\n"); - return PTR_ERR(pdata->dvdd10); - } - - /* GPIO for HPD */ - pdata->gpiod_hpd = devm_gpiod_get(dev, "hpd", GPIOD_IN); - if (IS_ERR(pdata->gpiod_hpd)) - return PTR_ERR(pdata->gpiod_hpd); - - /* GPIO for chip power down */ - pdata->gpiod_pd = devm_gpiod_get(dev, "pd", GPIOD_OUT_HIGH); - if (IS_ERR(pdata->gpiod_pd)) - return PTR_ERR(pdata->gpiod_pd); - - /* GPIO for chip reset */ - pdata->gpiod_reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); - - return PTR_ERR_OR_ZERO(pdata->gpiod_reset); -} - -static int anx78xx_dp_link_training(struct anx78xx *anx78xx) -{ - u8 dp_bw, value; - int err; - - err = regmap_write(anx78xx->map[I2C_IDX_RX_P0], SP_HDMI_MUTE_CTRL_REG, - 0x0); - if (err) - return err; - - err = anx78xx_clear_bits(anx78xx->map[I2C_IDX_TX_P2], - SP_POWERDOWN_CTRL_REG, - SP_TOTAL_PD); - if (err) - return err; - - err = drm_dp_dpcd_readb(&anx78xx->aux, DP_MAX_LINK_RATE, &dp_bw); - if (err < 0) - return err; - - switch (dp_bw) { - case DP_LINK_BW_1_62: - case DP_LINK_BW_2_7: - case DP_LINK_BW_5_4: - break; - - default: - DRM_DEBUG_KMS("DP bandwidth (%#02x) not supported\n", dp_bw); - return -EINVAL; - } - - err = anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P2], SP_VID_CTRL1_REG, - SP_VIDEO_MUTE); - if (err) - return err; - - err = anx78xx_clear_bits(anx78xx->map[I2C_IDX_TX_P2], - SP_VID_CTRL1_REG, SP_VIDEO_EN); - if (err) - return err; - - /* Get DPCD info */ - err = drm_dp_dpcd_read(&anx78xx->aux, DP_DPCD_REV, - &anx78xx->dpcd, DP_RECEIVER_CAP_SIZE); - if (err < 0) { - DRM_ERROR("Failed to read DPCD: %d\n", err); - return err; - } - - /* Clear channel x SERDES power down */ - err = anx78xx_clear_bits(anx78xx->map[I2C_IDX_TX_P0], - SP_DP_ANALOG_POWER_DOWN_REG, SP_CH0_PD); - if (err) - return err; - - /* Check link capabilities */ - err = drm_dp_link_probe(&anx78xx->aux, &anx78xx->link); - if (err < 0) { - DRM_ERROR("Failed to probe link capabilities: %d\n", err); - return err; - } - - /* Power up the sink */ - err = drm_dp_link_power_up(&anx78xx->aux, &anx78xx->link); - if (err < 0) { - DRM_ERROR("Failed to power up DisplayPort link: %d\n", err); - return err; - } - - /* Possibly enable downspread on the sink */ - err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], - SP_DP_DOWNSPREAD_CTRL1_REG, 0); - if (err) - return err; - - if (anx78xx->dpcd[DP_MAX_DOWNSPREAD] & DP_MAX_DOWNSPREAD_0_5) { - DRM_DEBUG("Enable downspread on the sink\n"); - /* 4000PPM */ - err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], - SP_DP_DOWNSPREAD_CTRL1_REG, 8); - if (err) - return err; - - err = drm_dp_dpcd_writeb(&anx78xx->aux, DP_DOWNSPREAD_CTRL, - DP_SPREAD_AMP_0_5); - if (err < 0) - return err; - } else { - err = drm_dp_dpcd_writeb(&anx78xx->aux, DP_DOWNSPREAD_CTRL, 0); - if (err < 0) - return err; - } - - /* Set the lane count and the link rate on the sink */ - if (drm_dp_enhanced_frame_cap(anx78xx->dpcd)) - err = anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P0], - SP_DP_SYSTEM_CTRL_BASE + 4, - SP_ENHANCED_MODE); - else - err = anx78xx_clear_bits(anx78xx->map[I2C_IDX_TX_P0], - SP_DP_SYSTEM_CTRL_BASE + 4, - SP_ENHANCED_MODE); - if (err) - return err; - - value = drm_dp_link_rate_to_bw_code(anx78xx->link.rate); - err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], - SP_DP_MAIN_LINK_BW_SET_REG, value); - if (err) - return err; - - err = drm_dp_link_configure(&anx78xx->aux, &anx78xx->link); - if (err < 0) { - DRM_ERROR("Failed to configure DisplayPort link: %d\n", err); - return err; - } - - /* Start training on the source */ - err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], SP_DP_LT_CTRL_REG, - SP_LT_EN); - if (err) - return err; - - return 0; -} - -static int anx78xx_config_dp_output(struct anx78xx *anx78xx) -{ - int err; - - err = anx78xx_clear_bits(anx78xx->map[I2C_IDX_TX_P2], SP_VID_CTRL1_REG, - SP_VIDEO_MUTE); - if (err) - return err; - - /* Enable DP output */ - err = anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P2], SP_VID_CTRL1_REG, - SP_VIDEO_EN); - if (err) - return err; - - return 0; -} - -static int anx78xx_send_video_infoframe(struct anx78xx *anx78xx, - struct hdmi_avi_infoframe *frame) -{ - u8 buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AVI_INFOFRAME_SIZE]; - int err; - - err = hdmi_avi_infoframe_pack(frame, buffer, sizeof(buffer)); - if (err < 0) { - DRM_ERROR("Failed to pack AVI infoframe: %d\n", err); - return err; - } - - err = anx78xx_clear_bits(anx78xx->map[I2C_IDX_TX_P0], - SP_PACKET_SEND_CTRL_REG, SP_AVI_IF_EN); - if (err) - return err; - - err = regmap_bulk_write(anx78xx->map[I2C_IDX_TX_P2], - SP_INFOFRAME_AVI_DB1_REG, buffer, - frame->length); - if (err) - return err; - - err = anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P0], - SP_PACKET_SEND_CTRL_REG, SP_AVI_IF_UD); - if (err) - return err; - - err = anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P0], - SP_PACKET_SEND_CTRL_REG, SP_AVI_IF_EN); - if (err) - return err; - - return 0; -} - -static int anx78xx_get_downstream_info(struct anx78xx *anx78xx) -{ - u8 value; - int err; - - err = drm_dp_dpcd_readb(&anx78xx->aux, DP_SINK_COUNT, &value); - if (err < 0) { - DRM_ERROR("Get sink count failed %d\n", err); - return err; - } - - if (!DP_GET_SINK_COUNT(value)) { - DRM_ERROR("Downstream disconnected\n"); - return -EIO; - } - - return 0; -} - -static int anx78xx_get_modes(struct drm_connector *connector) -{ - struct anx78xx *anx78xx = connector_to_anx78xx(connector); - int err, num_modes = 0; - - if (WARN_ON(!anx78xx->powered)) - return 0; - - if (anx78xx->edid) - return drm_add_edid_modes(connector, anx78xx->edid); - - mutex_lock(&anx78xx->lock); - - err = anx78xx_get_downstream_info(anx78xx); - if (err) { - DRM_ERROR("Failed to get downstream info: %d\n", err); - goto unlock; - } - - anx78xx->edid = drm_get_edid(connector, &anx78xx->aux.ddc); - if (!anx78xx->edid) { - DRM_ERROR("Failed to read EDID\n"); - goto unlock; - } - - err = drm_connector_update_edid_property(connector, - anx78xx->edid); - if (err) { - DRM_ERROR("Failed to update EDID property: %d\n", err); - goto unlock; - } - - num_modes = drm_add_edid_modes(connector, anx78xx->edid); - -unlock: - mutex_unlock(&anx78xx->lock); - - return num_modes; -} - -static const struct drm_connector_helper_funcs anx78xx_connector_helper_funcs = { - .get_modes = anx78xx_get_modes, -}; - -static enum drm_connector_status anx78xx_detect(struct drm_connector *connector, - bool force) -{ - struct anx78xx *anx78xx = connector_to_anx78xx(connector); - - if (!gpiod_get_value(anx78xx->pdata.gpiod_hpd)) - return connector_status_disconnected; - - return connector_status_connected; -} - -static const struct drm_connector_funcs anx78xx_connector_funcs = { - .fill_modes = drm_helper_probe_single_connector_modes, - .detect = anx78xx_detect, - .destroy = drm_connector_cleanup, - .reset = drm_atomic_helper_connector_reset, - .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, - .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, -}; - -static int anx78xx_bridge_attach(struct drm_bridge *bridge) -{ - struct anx78xx *anx78xx = bridge_to_anx78xx(bridge); - int err; - - if (!bridge->encoder) { - DRM_ERROR("Parent encoder object not found"); - return -ENODEV; - } - - /* Register aux channel */ - anx78xx->aux.name = "DP-AUX"; - anx78xx->aux.dev = &anx78xx->client->dev; - anx78xx->aux.transfer = anx78xx_aux_transfer; - - err = drm_dp_aux_register(&anx78xx->aux); - if (err < 0) { - DRM_ERROR("Failed to register aux channel: %d\n", err); - return err; - } - - err = drm_connector_init(bridge->dev, &anx78xx->connector, - &anx78xx_connector_funcs, - DRM_MODE_CONNECTOR_DisplayPort); - if (err) { - DRM_ERROR("Failed to initialize connector: %d\n", err); - return err; - } - - drm_connector_helper_add(&anx78xx->connector, - &anx78xx_connector_helper_funcs); - - err = drm_connector_register(&anx78xx->connector); - if (err) { - DRM_ERROR("Failed to register connector: %d\n", err); - return err; - } - - anx78xx->connector.polled = DRM_CONNECTOR_POLL_HPD; - - err = drm_connector_attach_encoder(&anx78xx->connector, - bridge->encoder); - if (err) { - DRM_ERROR("Failed to link up connector to encoder: %d\n", err); - return err; - } - - return 0; -} - -static enum drm_mode_status -anx78xx_bridge_mode_valid(struct drm_bridge *bridge, - const struct drm_display_mode *mode) -{ - if (mode->flags & DRM_MODE_FLAG_INTERLACE) - return MODE_NO_INTERLACE; - - /* Max 1200p at 5.4 Ghz, one lane */ - if (mode->clock > 154000) - return MODE_CLOCK_HIGH; - - return MODE_OK; -} - -static void anx78xx_bridge_disable(struct drm_bridge *bridge) -{ - struct anx78xx *anx78xx = bridge_to_anx78xx(bridge); - - /* Power off all modules except configuration registers access */ - anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P2], SP_POWERDOWN_CTRL_REG, - SP_HDCP_PD | SP_AUDIO_PD | SP_VIDEO_PD | SP_LINK_PD); -} - -static void anx78xx_bridge_mode_set(struct drm_bridge *bridge, - const struct drm_display_mode *mode, - const struct drm_display_mode *adjusted_mode) -{ - struct anx78xx *anx78xx = bridge_to_anx78xx(bridge); - struct hdmi_avi_infoframe frame; - int err; - - if (WARN_ON(!anx78xx->powered)) - return; - - mutex_lock(&anx78xx->lock); - - err = drm_hdmi_avi_infoframe_from_display_mode(&frame, - &anx78xx->connector, - adjusted_mode); - if (err) { - DRM_ERROR("Failed to setup AVI infoframe: %d\n", err); - goto unlock; - } - - err = anx78xx_send_video_infoframe(anx78xx, &frame); - if (err) - DRM_ERROR("Failed to send AVI infoframe: %d\n", err); - -unlock: - mutex_unlock(&anx78xx->lock); -} - -static void anx78xx_bridge_enable(struct drm_bridge *bridge) -{ - struct anx78xx *anx78xx = bridge_to_anx78xx(bridge); - int err; - - err = anx78xx_start(anx78xx); - if (err) { - DRM_ERROR("Failed to initialize: %d\n", err); - return; - } - - err = anx78xx_set_hpd(anx78xx); - if (err) - DRM_ERROR("Failed to set HPD: %d\n", err); -} - -static const struct drm_bridge_funcs anx78xx_bridge_funcs = { - .attach = anx78xx_bridge_attach, - .mode_valid = anx78xx_bridge_mode_valid, - .disable = anx78xx_bridge_disable, - .mode_set = anx78xx_bridge_mode_set, - .enable = anx78xx_bridge_enable, -}; - -static irqreturn_t anx78xx_hpd_threaded_handler(int irq, void *data) -{ - struct anx78xx *anx78xx = data; - int err; - - if (anx78xx->powered) - return IRQ_HANDLED; - - mutex_lock(&anx78xx->lock); - - /* Cable is pulled, power on the chip */ - anx78xx_poweron(anx78xx); - - err = anx78xx_enable_interrupts(anx78xx); - if (err) - DRM_ERROR("Failed to enable interrupts: %d\n", err); - - mutex_unlock(&anx78xx->lock); - - return IRQ_HANDLED; -} - -static int anx78xx_handle_dp_int_1(struct anx78xx *anx78xx, u8 irq) -{ - int err; - - DRM_DEBUG_KMS("Handle DP interrupt 1: %02x\n", irq); - - err = regmap_write(anx78xx->map[I2C_IDX_TX_P2], SP_DP_INT_STATUS1_REG, - irq); - if (err) - return err; - - if (irq & SP_TRAINING_FINISH) { - DRM_DEBUG_KMS("IRQ: hardware link training finished\n"); - err = anx78xx_config_dp_output(anx78xx); - } - - return err; -} - -static bool anx78xx_handle_common_int_4(struct anx78xx *anx78xx, u8 irq) -{ - bool event = false; - int err; - - DRM_DEBUG_KMS("Handle common interrupt 4: %02x\n", irq); - - err = regmap_write(anx78xx->map[I2C_IDX_TX_P2], - SP_COMMON_INT_STATUS4_REG, irq); - if (err) { - DRM_ERROR("Failed to write SP_COMMON_INT_STATUS4 %d\n", err); - return event; - } - - if (irq & SP_HPD_LOST) { - DRM_DEBUG_KMS("IRQ: Hot plug detect - cable is pulled out\n"); - event = true; - anx78xx_poweroff(anx78xx); - /* Free cached EDID */ - kfree(anx78xx->edid); - anx78xx->edid = NULL; - } else if (irq & SP_HPD_PLUG) { - DRM_DEBUG_KMS("IRQ: Hot plug detect - cable plug\n"); - event = true; - } - - return event; -} - -static void anx78xx_handle_hdmi_int_1(struct anx78xx *anx78xx, u8 irq) -{ - unsigned int value; - int err; - - DRM_DEBUG_KMS("Handle HDMI interrupt 1: %02x\n", irq); - - err = regmap_write(anx78xx->map[I2C_IDX_RX_P0], SP_INT_STATUS1_REG, - irq); - if (err) { - DRM_ERROR("Write HDMI int 1 failed: %d\n", err); - return; - } - - if ((irq & SP_CKDT_CHG) || (irq & SP_SCDT_CHG)) { - DRM_DEBUG_KMS("IRQ: HDMI input detected\n"); - - err = regmap_read(anx78xx->map[I2C_IDX_RX_P0], - SP_SYSTEM_STATUS_REG, &value); - if (err) { - DRM_ERROR("Read system status reg failed: %d\n", err); - return; - } - - if (!(value & SP_TMDS_CLOCK_DET)) { - DRM_DEBUG_KMS("IRQ: *** Waiting for HDMI clock ***\n"); - return; - } - - if (!(value & SP_TMDS_DE_DET)) { - DRM_DEBUG_KMS("IRQ: *** Waiting for HDMI signal ***\n"); - return; - } - - err = anx78xx_dp_link_training(anx78xx); - if (err) - DRM_ERROR("Failed to start link training: %d\n", err); - } -} - -static irqreturn_t anx78xx_intp_threaded_handler(int unused, void *data) -{ - struct anx78xx *anx78xx = data; - bool event = false; - unsigned int irq; - int err; - - mutex_lock(&anx78xx->lock); - - err = regmap_read(anx78xx->map[I2C_IDX_TX_P2], SP_DP_INT_STATUS1_REG, - &irq); - if (err) { - DRM_ERROR("Failed to read DP interrupt 1 status: %d\n", err); - goto unlock; - } - - if (irq) - anx78xx_handle_dp_int_1(anx78xx, irq); - - err = regmap_read(anx78xx->map[I2C_IDX_TX_P2], - SP_COMMON_INT_STATUS4_REG, &irq); - if (err) { - DRM_ERROR("Failed to read common interrupt 4 status: %d\n", - err); - goto unlock; - } - - if (irq) - event = anx78xx_handle_common_int_4(anx78xx, irq); - - /* Make sure we are still powered after handle HPD events */ - if (!anx78xx->powered) - goto unlock; - - err = regmap_read(anx78xx->map[I2C_IDX_RX_P0], SP_INT_STATUS1_REG, - &irq); - if (err) { - DRM_ERROR("Failed to read HDMI int 1 status: %d\n", err); - goto unlock; - } - - if (irq) - anx78xx_handle_hdmi_int_1(anx78xx, irq); - -unlock: - mutex_unlock(&anx78xx->lock); - - if (event) - drm_helper_hpd_irq_event(anx78xx->connector.dev); - - return IRQ_HANDLED; -} - -static void unregister_i2c_dummy_clients(struct anx78xx *anx78xx) -{ - unsigned int i; - - for (i = 0; i < ARRAY_SIZE(anx78xx->i2c_dummy); i++) - i2c_unregister_device(anx78xx->i2c_dummy[i]); -} - -static const struct regmap_config anx78xx_regmap_config = { - .reg_bits = 8, - .val_bits = 8, -}; - -static const u16 anx78xx_chipid_list[] = { - 0x7812, - 0x7814, - 0x7818, -}; - -static int anx78xx_i2c_probe(struct i2c_client *client, - const struct i2c_device_id *id) -{ - struct anx78xx *anx78xx; - struct anx78xx_platform_data *pdata; - unsigned int i, idl, idh, version; - bool found = false; - int err; - - anx78xx = devm_kzalloc(&client->dev, sizeof(*anx78xx), GFP_KERNEL); - if (!anx78xx) - return -ENOMEM; - - pdata = &anx78xx->pdata; - - mutex_init(&anx78xx->lock); - -#if IS_ENABLED(CONFIG_OF) - anx78xx->bridge.of_node = client->dev.of_node; -#endif - - anx78xx->client = client; - i2c_set_clientdata(client, anx78xx); - - err = anx78xx_init_pdata(anx78xx); - if (err) { - DRM_ERROR("Failed to initialize pdata: %d\n", err); - return err; - } - - pdata->hpd_irq = gpiod_to_irq(pdata->gpiod_hpd); - if (pdata->hpd_irq < 0) { - DRM_ERROR("Failed to get HPD IRQ: %d\n", pdata->hpd_irq); - return -ENODEV; - } - - pdata->intp_irq = client->irq; - if (!pdata->intp_irq) { - DRM_ERROR("Failed to get CABLE_DET and INTP IRQ\n"); - return -ENODEV; - } - - /* Map slave addresses of ANX7814 */ - for (i = 0; i < I2C_NUM_ADDRESSES; i++) { - anx78xx->i2c_dummy[i] = i2c_new_dummy(client->adapter, - anx78xx_i2c_addresses[i] >> 1); - if (!anx78xx->i2c_dummy[i]) { - err = -ENOMEM; - DRM_ERROR("Failed to reserve I2C bus %02x\n", - anx78xx_i2c_addresses[i]); - goto err_unregister_i2c; - } - - anx78xx->map[i] = devm_regmap_init_i2c(anx78xx->i2c_dummy[i], - &anx78xx_regmap_config); - if (IS_ERR(anx78xx->map[i])) { - err = PTR_ERR(anx78xx->map[i]); - DRM_ERROR("Failed regmap initialization %02x\n", - anx78xx_i2c_addresses[i]); - goto err_unregister_i2c; - } - } - - /* Look for supported chip ID */ - anx78xx_poweron(anx78xx); - - err = regmap_read(anx78xx->map[I2C_IDX_TX_P2], SP_DEVICE_IDL_REG, - &idl); - if (err) - goto err_poweroff; - - err = regmap_read(anx78xx->map[I2C_IDX_TX_P2], SP_DEVICE_IDH_REG, - &idh); - if (err) - goto err_poweroff; - - anx78xx->chipid = (u8)idl | ((u8)idh << 8); - - err = regmap_read(anx78xx->map[I2C_IDX_TX_P2], SP_DEVICE_VERSION_REG, - &version); - if (err) - goto err_poweroff; - - for (i = 0; i < ARRAY_SIZE(anx78xx_chipid_list); i++) { - if (anx78xx->chipid == anx78xx_chipid_list[i]) { - DRM_INFO("Found ANX%x (ver. %d) SlimPort Transmitter\n", - anx78xx->chipid, version); - found = true; - break; - } - } - - if (!found) { - DRM_ERROR("ANX%x (ver. %d) not supported by this driver\n", - anx78xx->chipid, version); - err = -ENODEV; - goto err_poweroff; - } - - err = devm_request_threaded_irq(&client->dev, pdata->hpd_irq, NULL, - anx78xx_hpd_threaded_handler, - IRQF_TRIGGER_RISING | IRQF_ONESHOT, - "anx78xx-hpd", anx78xx); - if (err) { - DRM_ERROR("Failed to request CABLE_DET threaded IRQ: %d\n", - err); - goto err_poweroff; - } - - err = devm_request_threaded_irq(&client->dev, pdata->intp_irq, NULL, - anx78xx_intp_threaded_handler, - IRQF_TRIGGER_RISING | IRQF_ONESHOT, - "anx78xx-intp", anx78xx); - if (err) { - DRM_ERROR("Failed to request INTP threaded IRQ: %d\n", err); - goto err_poweroff; - } - - anx78xx->bridge.funcs = &anx78xx_bridge_funcs; - - drm_bridge_add(&anx78xx->bridge); - - /* If cable is pulled out, just poweroff and wait for HPD event */ - if (!gpiod_get_value(anx78xx->pdata.gpiod_hpd)) - anx78xx_poweroff(anx78xx); - - return 0; - -err_poweroff: - anx78xx_poweroff(anx78xx); - -err_unregister_i2c: - unregister_i2c_dummy_clients(anx78xx); - return err; -} - -static int anx78xx_i2c_remove(struct i2c_client *client) -{ - struct anx78xx *anx78xx = i2c_get_clientdata(client); - - drm_bridge_remove(&anx78xx->bridge); - - unregister_i2c_dummy_clients(anx78xx); - - kfree(anx78xx->edid); - - return 0; -} - -static const struct i2c_device_id anx78xx_id[] = { - { "anx7814", 0 }, - { /* sentinel */ } -}; -MODULE_DEVICE_TABLE(i2c, anx78xx_id); - -#if IS_ENABLED(CONFIG_OF) -static const struct of_device_id anx78xx_match_table[] = { - { .compatible = "analogix,anx7814", }, - { /* sentinel */ }, -}; -MODULE_DEVICE_TABLE(of, anx78xx_match_table); -#endif - -static struct i2c_driver anx78xx_driver = { - .driver = { - .name = "anx7814", - .of_match_table = of_match_ptr(anx78xx_match_table), - }, - .probe = anx78xx_i2c_probe, - .remove = anx78xx_i2c_remove, - .id_table = anx78xx_id, -}; -module_i2c_driver(anx78xx_driver); - -MODULE_DESCRIPTION("ANX78xx SlimPort Transmitter driver"); -MODULE_AUTHOR("Enric Balletbo i Serra "); -MODULE_LICENSE("GPL v2"); diff --git a/drivers/gpu/drm/bridge/analogix-anx78xx.h b/drivers/gpu/drm/bridge/analogix-anx78xx.h deleted file mode 100644 index 25e063b..0000000 --- a/drivers/gpu/drm/bridge/analogix-anx78xx.h +++ /dev/null @@ -1,710 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * Copyright(c) 2016, Analogix Semiconductor. All rights reserved. - */ - -#ifndef __ANX78xx_H -#define __ANX78xx_H - -#define TX_P0 0x70 -#define TX_P1 0x7a -#define TX_P2 0x72 - -#define RX_P0 0x7e -#define RX_P1 0x80 - -/***************************************************************/ -/* Register definition of device address 0x7e */ -/***************************************************************/ - -/* - * System Control and Status - */ - -/* Software Reset Register 1 */ -#define SP_SOFTWARE_RESET1_REG 0x11 -#define SP_VIDEO_RST BIT(4) -#define SP_HDCP_MAN_RST BIT(2) -#define SP_TMDS_RST BIT(1) -#define SP_SW_MAN_RST BIT(0) - -/* System Status Register */ -#define SP_SYSTEM_STATUS_REG 0x14 -#define SP_TMDS_CLOCK_DET BIT(1) -#define SP_TMDS_DE_DET BIT(0) - -/* HDMI Status Register */ -#define SP_HDMI_STATUS_REG 0x15 -#define SP_HDMI_AUD_LAYOUT BIT(3) -#define SP_HDMI_DET BIT(0) -# define SP_DVI_MODE 0 -# define SP_HDMI_MODE 1 - -/* HDMI Mute Control Register */ -#define SP_HDMI_MUTE_CTRL_REG 0x16 -#define SP_AUD_MUTE BIT(1) -#define SP_VID_MUTE BIT(0) - -/* System Power Down Register 1 */ -#define SP_SYSTEM_POWER_DOWN1_REG 0x18 -#define SP_PWDN_CTRL BIT(0) - -/* - * Audio and Video Auto Control - */ - -/* Auto Audio and Video Control register */ -#define SP_AUDVID_CTRL_REG 0x20 -#define SP_AVC_OE BIT(7) -#define SP_AAC_OE BIT(6) -#define SP_AVC_EN BIT(1) -#define SP_AAC_EN BIT(0) - -/* Audio Exception Enable Registers */ -#define SP_AUD_EXCEPTION_ENABLE_BASE (0x24 - 1) -/* Bits for Audio Exception Enable Register 3 */ -#define SP_AEC_EN21 BIT(5) - -/* - * Interrupt - */ - -/* Interrupt Status Register 1 */ -#define SP_INT_STATUS1_REG 0x31 -/* Bits for Interrupt Status Register 1 */ -#define SP_HDMI_DVI BIT(7) -#define SP_CKDT_CHG BIT(6) -#define SP_SCDT_CHG BIT(5) -#define SP_PCLK_CHG BIT(4) -#define SP_PLL_UNLOCK BIT(3) -#define SP_CABLE_PLUG_CHG BIT(2) -#define SP_SET_MUTE BIT(1) -#define SP_SW_INTR BIT(0) -/* Bits for Interrupt Status Register 2 */ -#define SP_HDCP_ERR BIT(5) -#define SP_AUDIO_SAMPLE_CHG BIT(0) /* undocumented */ -/* Bits for Interrupt Status Register 3 */ -#define SP_AUD_MODE_CHG BIT(0) -/* Bits for Interrupt Status Register 5 */ -#define SP_AUDIO_RCV BIT(0) -/* Bits for Interrupt Status Register 6 */ -#define SP_INT_STATUS6_REG 0x36 -#define SP_CTS_RCV BIT(7) -#define SP_NEW_AUD_PKT BIT(4) -#define SP_NEW_AVI_PKT BIT(1) -#define SP_NEW_CP_PKT BIT(0) -/* Bits for Interrupt Status Register 7 */ -#define SP_NO_VSI BIT(7) -#define SP_NEW_VS BIT(4) - -/* Interrupt Mask 1 Status Registers */ -#define SP_INT_MASK1_REG 0x41 - -/* HDMI US TIMER Control Register */ -#define SP_HDMI_US_TIMER_CTRL_REG 0x49 -#define SP_MS_TIMER_MARGIN_10_8_MASK 0x07 - -/* - * TMDS Control - */ - -/* TMDS Control Registers */ -#define SP_TMDS_CTRL_BASE (0x50 - 1) -/* Bits for TMDS Control Register 7 */ -#define SP_PD_RT BIT(0) - -/* - * Video Control - */ - -/* Video Status Register */ -#define SP_VIDEO_STATUS_REG 0x70 -#define SP_COLOR_DEPTH_MASK 0xf0 -#define SP_COLOR_DEPTH_SHIFT 4 -# define SP_COLOR_DEPTH_MODE_LEGACY 0x00 -# define SP_COLOR_DEPTH_MODE_24BIT 0x04 -# define SP_COLOR_DEPTH_MODE_30BIT 0x05 -# define SP_COLOR_DEPTH_MODE_36BIT 0x06 -# define SP_COLOR_DEPTH_MODE_48BIT 0x07 - -/* Video Data Range Control Register */ -#define SP_VID_DATA_RANGE_CTRL_REG 0x83 -#define SP_R2Y_INPUT_LIMIT BIT(1) - -/* Pixel Clock High Resolution Counter Registers */ -#define SP_PCLK_HIGHRES_CNT_BASE (0x8c - 1) - -/* - * Audio Control - */ - -/* Number of Audio Channels Status Registers */ -#define SP_AUD_CH_STATUS_REG_NUM 6 - -/* Audio IN S/PDIF Channel Status Registers */ -#define SP_AUD_SPDIF_CH_STATUS_BASE 0xc7 - -/* Audio IN S/PDIF Channel Status Register 4 */ -#define SP_FS_FREQ_MASK 0x0f -# define SP_FS_FREQ_44100HZ 0x00 -# define SP_FS_FREQ_48000HZ 0x02 -# define SP_FS_FREQ_32000HZ 0x03 -# define SP_FS_FREQ_88200HZ 0x08 -# define SP_FS_FREQ_96000HZ 0x0a -# define SP_FS_FREQ_176400HZ 0x0c -# define SP_FS_FREQ_192000HZ 0x0e - -/* - * Micellaneous Control Block - */ - -/* CHIP Control Register */ -#define SP_CHIP_CTRL_REG 0xe3 -#define SP_MAN_HDMI5V_DET BIT(3) -#define SP_PLLLOCK_CKDT_EN BIT(2) -#define SP_ANALOG_CKDT_EN BIT(1) -#define SP_DIGITAL_CKDT_EN BIT(0) - -/* Packet Receiving Status Register */ -#define SP_PACKET_RECEIVING_STATUS_REG 0xf3 -#define SP_AVI_RCVD BIT(5) -#define SP_VSI_RCVD BIT(1) - -/***************************************************************/ -/* Register definition of device address 0x80 */ -/***************************************************************/ - -/* HDCP BCAPS Shadow Register */ -#define SP_HDCP_BCAPS_SHADOW_REG 0x2a -#define SP_BCAPS_REPEATER BIT(5) - -/* HDCP Status Register */ -#define SP_RX_HDCP_STATUS_REG 0x3f -#define SP_AUTH_EN BIT(4) - -/* - * InfoFrame and Control Packet Registers - */ - -/* AVI InfoFrame packet checksum */ -#define SP_AVI_INFOFRAME_CHECKSUM 0xa3 - -/* AVI InfoFrame Registers */ -#define SP_AVI_INFOFRAME_DATA_BASE 0xa4 - -#define SP_AVI_COLOR_F_MASK 0x60 -#define SP_AVI_COLOR_F_SHIFT 5 - -/* Audio InfoFrame Registers */ -#define SP_AUD_INFOFRAME_DATA_BASE 0xc4 -#define SP_AUD_INFOFRAME_LAYOUT_MASK 0x0f - -/* MPEG/HDMI Vendor Specific InfoFrame Packet type code */ -#define SP_MPEG_VS_INFOFRAME_TYPE_REG 0xe0 - -/* MPEG/HDMI Vendor Specific InfoFrame Packet length */ -#define SP_MPEG_VS_INFOFRAME_LEN_REG 0xe2 - -/* MPEG/HDMI Vendor Specific InfoFrame Packet version number */ -#define SP_MPEG_VS_INFOFRAME_VER_REG 0xe1 - -/* MPEG/HDMI Vendor Specific InfoFrame Packet content */ -#define SP_MPEG_VS_INFOFRAME_DATA_BASE 0xe4 - -/* General Control Packet Register */ -#define SP_GENERAL_CTRL_PACKET_REG 0x9f -#define SP_CLEAR_AVMUTE BIT(4) -#define SP_SET_AVMUTE BIT(0) - -/***************************************************************/ -/* Register definition of device address 0x70 */ -/***************************************************************/ - -/* HDCP Status Register */ -#define SP_TX_HDCP_STATUS_REG 0x00 -#define SP_AUTH_FAIL BIT(5) -#define SP_AUTHEN_PASS BIT(1) - -/* HDCP Control Register 0 */ -#define SP_HDCP_CTRL0_REG 0x01 -#define SP_RX_REPEATER BIT(6) -#define SP_RE_AUTH BIT(5) -#define SP_SW_AUTH_OK BIT(4) -#define SP_HARD_AUTH_EN BIT(3) -#define SP_HDCP_ENC_EN BIT(2) -#define SP_BKSV_SRM_PASS BIT(1) -#define SP_KSVLIST_VLD BIT(0) -/* HDCP Function Enabled */ -#define SP_HDCP_FUNCTION_ENABLED (BIT(0) | BIT(1) | BIT(2) | BIT(3)) - -/* HDCP Receiver BSTATUS Register 0 */ -#define SP_HDCP_RX_BSTATUS0_REG 0x1b -/* HDCP Receiver BSTATUS Register 1 */ -#define SP_HDCP_RX_BSTATUS1_REG 0x1c - -/* HDCP Embedded "Blue Screen" Content Registers */ -#define SP_HDCP_VID0_BLUE_SCREEN_REG 0x2c -#define SP_HDCP_VID1_BLUE_SCREEN_REG 0x2d -#define SP_HDCP_VID2_BLUE_SCREEN_REG 0x2e - -/* HDCP Wait R0 Timing Register */ -#define SP_HDCP_WAIT_R0_TIME_REG 0x40 - -/* HDCP Link Integrity Check Timer Register */ -#define SP_HDCP_LINK_CHECK_TIMER_REG 0x41 - -/* HDCP Repeater Ready Wait Timer Register */ -#define SP_HDCP_RPTR_RDY_WAIT_TIME_REG 0x42 - -/* HDCP Auto Timer Register */ -#define SP_HDCP_AUTO_TIMER_REG 0x51 - -/* HDCP Key Status Register */ -#define SP_HDCP_KEY_STATUS_REG 0x5e - -/* HDCP Key Command Register */ -#define SP_HDCP_KEY_COMMAND_REG 0x5f -#define SP_DISABLE_SYNC_HDCP BIT(2) - -/* OTP Memory Key Protection Registers */ -#define SP_OTP_KEY_PROTECT1_REG 0x60 -#define SP_OTP_KEY_PROTECT2_REG 0x61 -#define SP_OTP_KEY_PROTECT3_REG 0x62 -#define SP_OTP_PSW1 0xa2 -#define SP_OTP_PSW2 0x7e -#define SP_OTP_PSW3 0xc6 - -/* DP System Control Registers */ -#define SP_DP_SYSTEM_CTRL_BASE (0x80 - 1) -/* Bits for DP System Control Register 2 */ -#define SP_CHA_STA BIT(2) -/* Bits for DP System Control Register 3 */ -#define SP_HPD_STATUS BIT(6) -#define SP_STRM_VALID BIT(2) -/* Bits for DP System Control Register 4 */ -#define SP_ENHANCED_MODE BIT(3) - -/* DP Video Control Register */ -#define SP_DP_VIDEO_CTRL_REG 0x84 -#define SP_COLOR_F_MASK 0x06 -#define SP_COLOR_F_SHIFT 1 -#define SP_BPC_MASK 0xe0 -#define SP_BPC_SHIFT 5 -# define SP_BPC_6BITS 0x00 -# define SP_BPC_8BITS 0x01 -# define SP_BPC_10BITS 0x02 -# define SP_BPC_12BITS 0x03 - -/* DP Audio Control Register */ -#define SP_DP_AUDIO_CTRL_REG 0x87 -#define SP_AUD_EN BIT(0) - -/* 10us Pulse Generate Timer Registers */ -#define SP_I2C_GEN_10US_TIMER0_REG 0x88 -#define SP_I2C_GEN_10US_TIMER1_REG 0x89 - -/* Packet Send Control Register */ -#define SP_PACKET_SEND_CTRL_REG 0x90 -#define SP_AUD_IF_UP BIT(7) -#define SP_AVI_IF_UD BIT(6) -#define SP_MPEG_IF_UD BIT(5) -#define SP_SPD_IF_UD BIT(4) -#define SP_AUD_IF_EN BIT(3) -#define SP_AVI_IF_EN BIT(2) -#define SP_MPEG_IF_EN BIT(1) -#define SP_SPD_IF_EN BIT(0) - -/* DP HDCP Control Register */ -#define SP_DP_HDCP_CTRL_REG 0x92 -#define SP_AUTO_EN BIT(7) -#define SP_AUTO_START BIT(5) -#define SP_LINK_POLLING BIT(1) - -/* DP Main Link Bandwidth Setting Register */ -#define SP_DP_MAIN_LINK_BW_SET_REG 0xa0 -#define SP_LINK_BW_SET_MASK 0x1f -#define SP_INITIAL_SLIM_M_AUD_SEL BIT(5) - -/* DP Training Pattern Set Register */ -#define SP_DP_TRAINING_PATTERN_SET_REG 0xa2 - -/* DP Lane 0 Link Training Control Register */ -#define SP_DP_LANE0_LT_CTRL_REG 0xa3 -#define SP_TX_SW_SET_MASK 0x1b -#define SP_MAX_PRE_REACH BIT(5) -#define SP_MAX_DRIVE_REACH BIT(4) -#define SP_PRE_EMP_LEVEL1 BIT(3) -#define SP_DRVIE_CURRENT_LEVEL1 BIT(0) - -/* DP Link Training Control Register */ -#define SP_DP_LT_CTRL_REG 0xa8 -#define SP_LT_ERROR_TYPE_MASK 0x70 -# define SP_LT_NO_ERROR 0x00 -# define SP_LT_AUX_WRITE_ERROR 0x01 -# define SP_LT_MAX_DRIVE_REACHED 0x02 -# define SP_LT_WRONG_LANE_COUNT_SET 0x03 -# define SP_LT_LOOP_SAME_5_TIME 0x04 -# define SP_LT_CR_FAIL_IN_EQ 0x05 -# define SP_LT_EQ_LOOP_5_TIME 0x06 -#define SP_LT_EN BIT(0) - -/* DP CEP Training Control Registers */ -#define SP_DP_CEP_TRAINING_CTRL0_REG 0xa9 -#define SP_DP_CEP_TRAINING_CTRL1_REG 0xaa - -/* DP Debug Register 1 */ -#define SP_DP_DEBUG1_REG 0xb0 -#define SP_DEBUG_PLL_LOCK BIT(4) -#define SP_POLLING_EN BIT(1) - -/* DP Polling Control Register */ -#define SP_DP_POLLING_CTRL_REG 0xb4 -#define SP_AUTO_POLLING_DISABLE BIT(0) - -/* DP Link Debug Control Register */ -#define SP_DP_LINK_DEBUG_CTRL_REG 0xb8 -#define SP_M_VID_DEBUG BIT(5) -#define SP_NEW_PRBS7 BIT(4) -#define SP_INSERT_ER BIT(1) -#define SP_PRBS31_EN BIT(0) - -/* AUX Misc control Register */ -#define SP_AUX_MISC_CTRL_REG 0xbf - -/* DP PLL control Register */ -#define SP_DP_PLL_CTRL_REG 0xc7 -#define SP_PLL_RST BIT(6) - -/* DP Analog Power Down Register */ -#define SP_DP_ANALOG_POWER_DOWN_REG 0xc8 -#define SP_CH0_PD BIT(0) - -/* DP Misc Control Register */ -#define SP_DP_MISC_CTRL_REG 0xcd -#define SP_EQ_TRAINING_LOOP BIT(6) - -/* DP Extra I2C Device Address Register */ -#define SP_DP_EXTRA_I2C_DEV_ADDR_REG 0xce -#define SP_I2C_STRETCH_DISABLE BIT(7) - -#define SP_I2C_EXTRA_ADDR 0x50 - -/* DP Downspread Control Register 1 */ -#define SP_DP_DOWNSPREAD_CTRL1_REG 0xd0 - -/* DP M Value Calculation Control Register */ -#define SP_DP_M_CALCULATION_CTRL_REG 0xd9 -#define SP_M_GEN_CLK_SEL BIT(0) - -/* AUX Channel Access Status Register */ -#define SP_AUX_CH_STATUS_REG 0xe0 -#define SP_AUX_STATUS 0x0f - -/* AUX Channel DEFER Control Register */ -#define SP_AUX_DEFER_CTRL_REG 0xe2 -#define SP_DEFER_CTRL_EN BIT(7) - -/* DP Buffer Data Count Register */ -#define SP_BUF_DATA_COUNT_REG 0xe4 -#define SP_BUF_DATA_COUNT_MASK 0x1f -#define SP_BUF_CLR BIT(7) - -/* DP AUX Channel Control Register 1 */ -#define SP_DP_AUX_CH_CTRL1_REG 0xe5 -#define SP_AUX_TX_COMM_MASK 0x0f -#define SP_AUX_LENGTH_MASK 0xf0 -#define SP_AUX_LENGTH_SHIFT 4 - -/* DP AUX CH Address Register 0 */ -#define SP_AUX_ADDR_7_0_REG 0xe6 - -/* DP AUX CH Address Register 1 */ -#define SP_AUX_ADDR_15_8_REG 0xe7 - -/* DP AUX CH Address Register 2 */ -#define SP_AUX_ADDR_19_16_REG 0xe8 -#define SP_AUX_ADDR_19_16_MASK 0x0f - -/* DP AUX Channel Control Register 2 */ -#define SP_DP_AUX_CH_CTRL2_REG 0xe9 -#define SP_AUX_SEL_RXCM BIT(6) -#define SP_AUX_CHSEL BIT(3) -#define SP_AUX_PN_INV BIT(2) -#define SP_ADDR_ONLY BIT(1) -#define SP_AUX_EN BIT(0) - -/* DP Video Stream Control InfoFrame Register */ -#define SP_DP_3D_VSC_CTRL_REG 0xea -#define SP_INFO_FRAME_VSC_EN BIT(0) - -/* DP Video Stream Data Byte 1 Register */ -#define SP_DP_VSC_DB1_REG 0xeb - -/* DP AUX Channel Control Register 3 */ -#define SP_DP_AUX_CH_CTRL3_REG 0xec -#define SP_WAIT_COUNTER_7_0_MASK 0xff - -/* DP AUX Channel Control Register 4 */ -#define SP_DP_AUX_CH_CTRL4_REG 0xed - -/* DP AUX Buffer Data Registers */ -#define SP_DP_BUF_DATA0_REG 0xf0 - -/***************************************************************/ -/* Register definition of device address 0x72 */ -/***************************************************************/ - -/* - * Core Register Definitions - */ - -/* Device ID Low Byte Register */ -#define SP_DEVICE_IDL_REG 0x02 - -/* Device ID High Byte Register */ -#define SP_DEVICE_IDH_REG 0x03 - -/* Device version register */ -#define SP_DEVICE_VERSION_REG 0x04 - -/* Power Down Control Register */ -#define SP_POWERDOWN_CTRL_REG 0x05 -#define SP_REGISTER_PD BIT(7) -#define SP_HDCP_PD BIT(5) -#define SP_AUDIO_PD BIT(4) -#define SP_VIDEO_PD BIT(3) -#define SP_LINK_PD BIT(2) -#define SP_TOTAL_PD BIT(1) - -/* Reset Control Register 1 */ -#define SP_RESET_CTRL1_REG 0x06 -#define SP_MISC_RST BIT(7) -#define SP_VIDCAP_RST BIT(6) -#define SP_VIDFIF_RST BIT(5) -#define SP_AUDFIF_RST BIT(4) -#define SP_AUDCAP_RST BIT(3) -#define SP_HDCP_RST BIT(2) -#define SP_SW_RST BIT(1) -#define SP_HW_RST BIT(0) - -/* Reset Control Register 2 */ -#define SP_RESET_CTRL2_REG 0x07 -#define SP_AUX_RST BIT(2) -#define SP_SERDES_FIFO_RST BIT(1) -#define SP_I2C_REG_RST BIT(0) - -/* Video Control Register 1 */ -#define SP_VID_CTRL1_REG 0x08 -#define SP_VIDEO_EN BIT(7) -#define SP_VIDEO_MUTE BIT(2) -#define SP_DE_GEN BIT(1) -#define SP_DEMUX BIT(0) - -/* Video Control Register 2 */ -#define SP_VID_CTRL2_REG 0x09 -#define SP_IN_COLOR_F_MASK 0x03 -#define SP_IN_YC_BIT_SEL BIT(2) -#define SP_IN_BPC_MASK 0x70 -#define SP_IN_BPC_SHIFT 4 -# define SP_IN_BPC_12BIT 0x03 -# define SP_IN_BPC_10BIT 0x02 -# define SP_IN_BPC_8BIT 0x01 -# define SP_IN_BPC_6BIT 0x00 -#define SP_IN_D_RANGE BIT(7) - -/* Video Control Register 3 */ -#define SP_VID_CTRL3_REG 0x0a -#define SP_HPD_OUT BIT(6) - -/* Video Control Register 5 */ -#define SP_VID_CTRL5_REG 0x0c -#define SP_CSC_STD_SEL BIT(7) -#define SP_XVYCC_RNG_LMT BIT(6) -#define SP_RANGE_Y2R BIT(5) -#define SP_CSPACE_Y2R BIT(4) -#define SP_RGB_RNG_LMT BIT(3) -#define SP_Y_RNG_LMT BIT(2) -#define SP_RANGE_R2Y BIT(1) -#define SP_CSPACE_R2Y BIT(0) - -/* Video Control Register 6 */ -#define SP_VID_CTRL6_REG 0x0d -#define SP_TEST_PATTERN_EN BIT(7) -#define SP_VIDEO_PROCESS_EN BIT(6) -#define SP_VID_US_MODE BIT(3) -#define SP_VID_DS_MODE BIT(2) -#define SP_UP_SAMPLE BIT(1) -#define SP_DOWN_SAMPLE BIT(0) - -/* Video Control Register 8 */ -#define SP_VID_CTRL8_REG 0x0f -#define SP_VID_VRES_TH BIT(0) - -/* Total Line Status Low Byte Register */ -#define SP_TOTAL_LINE_STAL_REG 0x24 - -/* Total Line Status High Byte Register */ -#define SP_TOTAL_LINE_STAH_REG 0x25 - -/* Active Line Status Low Byte Register */ -#define SP_ACT_LINE_STAL_REG 0x26 - -/* Active Line Status High Byte Register */ -#define SP_ACT_LINE_STAH_REG 0x27 - -/* Vertical Front Porch Status Register */ -#define SP_V_F_PORCH_STA_REG 0x28 - -/* Vertical SYNC Width Status Register */ -#define SP_V_SYNC_STA_REG 0x29 - -/* Vertical Back Porch Status Register */ -#define SP_V_B_PORCH_STA_REG 0x2a - -/* Total Pixel Status Low Byte Register */ -#define SP_TOTAL_PIXEL_STAL_REG 0x2b - -/* Total Pixel Status High Byte Register */ -#define SP_TOTAL_PIXEL_STAH_REG 0x2c - -/* Active Pixel Status Low Byte Register */ -#define SP_ACT_PIXEL_STAL_REG 0x2d - -/* Active Pixel Status High Byte Register */ -#define SP_ACT_PIXEL_STAH_REG 0x2e - -/* Horizontal Front Porch Status Low Byte Register */ -#define SP_H_F_PORCH_STAL_REG 0x2f - -/* Horizontal Front Porch Statys High Byte Register */ -#define SP_H_F_PORCH_STAH_REG 0x30 - -/* Horizontal SYNC Width Status Low Byte Register */ -#define SP_H_SYNC_STAL_REG 0x31 - -/* Horizontal SYNC Width Status High Byte Register */ -#define SP_H_SYNC_STAH_REG 0x32 - -/* Horizontal Back Porch Status Low Byte Register */ -#define SP_H_B_PORCH_STAL_REG 0x33 - -/* Horizontal Back Porch Status High Byte Register */ -#define SP_H_B_PORCH_STAH_REG 0x34 - -/* InfoFrame AVI Packet DB1 Register */ -#define SP_INFOFRAME_AVI_DB1_REG 0x70 - -/* Bit Control Specific Register */ -#define SP_BIT_CTRL_SPECIFIC_REG 0x80 -#define SP_BIT_CTRL_SELECT_SHIFT 1 -#define SP_ENABLE_BIT_CTRL BIT(0) - -/* InfoFrame Audio Packet DB1 Register */ -#define SP_INFOFRAME_AUD_DB1_REG 0x83 - -/* InfoFrame MPEG Packet DB1 Register */ -#define SP_INFOFRAME_MPEG_DB1_REG 0xb0 - -/* Audio Channel Status Registers */ -#define SP_AUD_CH_STATUS_BASE 0xd0 - -/* Audio Channel Num Register 5 */ -#define SP_I2S_CHANNEL_NUM_MASK 0xe0 -# define SP_I2S_CH_NUM_1 (0x00 << 5) -# define SP_I2S_CH_NUM_2 (0x01 << 5) -# define SP_I2S_CH_NUM_3 (0x02 << 5) -# define SP_I2S_CH_NUM_4 (0x03 << 5) -# define SP_I2S_CH_NUM_5 (0x04 << 5) -# define SP_I2S_CH_NUM_6 (0x05 << 5) -# define SP_I2S_CH_NUM_7 (0x06 << 5) -# define SP_I2S_CH_NUM_8 (0x07 << 5) -#define SP_EXT_VUCP BIT(2) -#define SP_VBIT BIT(1) -#define SP_AUDIO_LAYOUT BIT(0) - -/* Analog Debug Register 2 */ -#define SP_ANALOG_DEBUG2_REG 0xdd -#define SP_FORCE_SW_OFF_BYPASS 0x20 -#define SP_XTAL_FRQ 0x1c -# define SP_XTAL_FRQ_19M2 (0x00 << 2) -# define SP_XTAL_FRQ_24M (0x01 << 2) -# define SP_XTAL_FRQ_25M (0x02 << 2) -# define SP_XTAL_FRQ_26M (0x03 << 2) -# define SP_XTAL_FRQ_27M (0x04 << 2) -# define SP_XTAL_FRQ_38M4 (0x05 << 2) -# define SP_XTAL_FRQ_52M (0x06 << 2) -#define SP_POWERON_TIME_1P5MS 0x03 - -/* Analog Control 0 Register */ -#define SP_ANALOG_CTRL0_REG 0xe1 - -/* Common Interrupt Status Register 1 */ -#define SP_COMMON_INT_STATUS_BASE (0xf1 - 1) -#define SP_PLL_LOCK_CHG 0x40 - -/* Common Interrupt Status Register 2 */ -#define SP_COMMON_INT_STATUS2 0xf2 -#define SP_HDCP_AUTH_CHG BIT(1) -#define SP_HDCP_AUTH_DONE BIT(0) - -#define SP_HDCP_LINK_CHECK_FAIL BIT(0) - -/* Common Interrupt Status Register 4 */ -#define SP_COMMON_INT_STATUS4_REG 0xf4 -#define SP_HPD_IRQ BIT(6) -#define SP_HPD_ESYNC_ERR BIT(4) -#define SP_HPD_CHG BIT(2) -#define SP_HPD_LOST BIT(1) -#define SP_HPD_PLUG BIT(0) - -/* DP Interrupt Status Register */ -#define SP_DP_INT_STATUS1_REG 0xf7 -#define SP_TRAINING_FINISH BIT(5) -#define SP_POLLING_ERR BIT(4) - -/* Common Interrupt Mask Register */ -#define SP_COMMON_INT_MASK_BASE (0xf8 - 1) - -#define SP_COMMON_INT_MASK4_REG 0xfb - -/* DP Interrupts Mask Register */ -#define SP_DP_INT_MASK1_REG 0xfe - -/* Interrupt Control Register */ -#define SP_INT_CTRL_REG 0xff - -/***************************************************************/ -/* Register definition of device address 0x7a */ -/***************************************************************/ - -/* DP TX Link Training Control Register */ -#define SP_DP_TX_LT_CTRL0_REG 0x30 - -/* PD 1.2 Lint Training 80bit Pattern Register */ -#define SP_DP_LT_80BIT_PATTERN0_REG 0x80 -#define SP_DP_LT_80BIT_PATTERN_REG_NUM 10 - -/* Audio Interface Control Register 0 */ -#define SP_AUD_INTERFACE_CTRL0_REG 0x5f -#define SP_AUD_INTERFACE_DISABLE 0x80 - -/* Audio Interface Control Register 2 */ -#define SP_AUD_INTERFACE_CTRL2_REG 0x60 -#define SP_M_AUD_ADJUST_ST 0x04 - -/* Audio Interface Control Register 3 */ -#define SP_AUD_INTERFACE_CTRL3_REG 0x62 - -/* Audio Interface Control Register 4 */ -#define SP_AUD_INTERFACE_CTRL4_REG 0x67 - -/* Audio Interface Control Register 5 */ -#define SP_AUD_INTERFACE_CTRL5_REG 0x68 - -/* Audio Interface Control Register 6 */ -#define SP_AUD_INTERFACE_CTRL6_REG 0x69 - -/* Firmware Version Register */ -#define SP_FW_VER_REG 0xb7 - -#endif diff --git a/drivers/gpu/drm/bridge/analogix/Kconfig b/drivers/gpu/drm/bridge/analogix/Kconfig index e930ff9..dfe84f5 100644 --- a/drivers/gpu/drm/bridge/analogix/Kconfig +++ b/drivers/gpu/drm/bridge/analogix/Kconfig @@ -1,4 +1,14 @@ # SPDX-License-Identifier: GPL-2.0-only +config DRM_ANALOGIX_ANX78XX + tristate "Analogix ANX78XX bridge" + select DRM_KMS_HELPER + select REGMAP_I2C + ---help--- + ANX78XX is an ultra-low Full-HD SlimPort transmitter + designed for portable devices. The ANX78XX transforms + the HDMI output of an application processor to MyDP + or DisplayPort. + config DRM_ANALOGIX_DP tristate depends on DRM diff --git a/drivers/gpu/drm/bridge/analogix/Makefile b/drivers/gpu/drm/bridge/analogix/Makefile index fdbf3fd..d4c54ac 100644 --- a/drivers/gpu/drm/bridge/analogix/Makefile +++ b/drivers/gpu/drm/bridge/analogix/Makefile @@ -1,3 +1,5 @@ # SPDX-License-Identifier: GPL-2.0-only +obj-$(CONFIG_DRM_ANALOGIX_ANX78XX) += analogix-anx78xx.o + analogix_dp-objs := analogix_dp_core.o analogix_dp_reg.o obj-$(CONFIG_DRM_ANALOGIX_DP) += analogix_dp.o diff --git a/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c b/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c new file mode 100644 index 0000000..3c7cc5a --- /dev/null +++ b/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c @@ -0,0 +1,1485 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright(c) 2016, Analogix Semiconductor. + * + * Based on anx7808 driver obtained from chromeos with copyright: + * Copyright(c) 2013, Google Inc. + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include + +#include "analogix-anx78xx.h" + +#define I2C_NUM_ADDRESSES 5 +#define I2C_IDX_TX_P0 0 +#define I2C_IDX_TX_P1 1 +#define I2C_IDX_TX_P2 2 +#define I2C_IDX_RX_P0 3 +#define I2C_IDX_RX_P1 4 + +#define XTAL_CLK 270 /* 27M */ +#define AUX_CH_BUFFER_SIZE 16 +#define AUX_WAIT_TIMEOUT_MS 15 + +static const u8 anx78xx_i2c_addresses[] = { + [I2C_IDX_TX_P0] = TX_P0, + [I2C_IDX_TX_P1] = TX_P1, + [I2C_IDX_TX_P2] = TX_P2, + [I2C_IDX_RX_P0] = RX_P0, + [I2C_IDX_RX_P1] = RX_P1, +}; + +struct anx78xx_platform_data { + struct regulator *dvdd10; + struct gpio_desc *gpiod_hpd; + struct gpio_desc *gpiod_pd; + struct gpio_desc *gpiod_reset; + + int hpd_irq; + int intp_irq; +}; + +struct anx78xx { + struct drm_dp_aux aux; + struct drm_bridge bridge; + struct i2c_client *client; + struct edid *edid; + struct drm_connector connector; + struct drm_dp_link link; + struct anx78xx_platform_data pdata; + struct mutex lock; + + /* + * I2C Slave addresses of ANX7814 are mapped as TX_P0, TX_P1, TX_P2, + * RX_P0 and RX_P1. + */ + struct i2c_client *i2c_dummy[I2C_NUM_ADDRESSES]; + struct regmap *map[I2C_NUM_ADDRESSES]; + + u16 chipid; + u8 dpcd[DP_RECEIVER_CAP_SIZE]; + + bool powered; +}; + +static inline struct anx78xx *connector_to_anx78xx(struct drm_connector *c) +{ + return container_of(c, struct anx78xx, connector); +} + +static inline struct anx78xx *bridge_to_anx78xx(struct drm_bridge *bridge) +{ + return container_of(bridge, struct anx78xx, bridge); +} + +static int anx78xx_set_bits(struct regmap *map, u8 reg, u8 mask) +{ + return regmap_update_bits(map, reg, mask, mask); +} + +static int anx78xx_clear_bits(struct regmap *map, u8 reg, u8 mask) +{ + return regmap_update_bits(map, reg, mask, 0); +} + +static bool anx78xx_aux_op_finished(struct anx78xx *anx78xx) +{ + unsigned int value; + int err; + + err = regmap_read(anx78xx->map[I2C_IDX_TX_P0], SP_DP_AUX_CH_CTRL2_REG, + &value); + if (err < 0) + return false; + + return (value & SP_AUX_EN) == 0; +} + +static int anx78xx_aux_wait(struct anx78xx *anx78xx) +{ + unsigned long timeout; + unsigned int status; + int err; + + timeout = jiffies + msecs_to_jiffies(AUX_WAIT_TIMEOUT_MS) + 1; + + while (!anx78xx_aux_op_finished(anx78xx)) { + if (time_after(jiffies, timeout)) { + if (!anx78xx_aux_op_finished(anx78xx)) { + DRM_ERROR("Timed out waiting AUX to finish\n"); + return -ETIMEDOUT; + } + + break; + } + + usleep_range(1000, 2000); + } + + /* Read the AUX channel access status */ + err = regmap_read(anx78xx->map[I2C_IDX_TX_P0], SP_AUX_CH_STATUS_REG, + &status); + if (err < 0) { + DRM_ERROR("Failed to read from AUX channel: %d\n", err); + return err; + } + + if (status & SP_AUX_STATUS) { + DRM_ERROR("Failed to wait for AUX channel (status: %02x)\n", + status); + return -ETIMEDOUT; + } + + return 0; +} + +static int anx78xx_aux_address(struct anx78xx *anx78xx, unsigned int addr) +{ + int err; + + err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], SP_AUX_ADDR_7_0_REG, + addr & 0xff); + if (err) + return err; + + err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], SP_AUX_ADDR_15_8_REG, + (addr & 0xff00) >> 8); + if (err) + return err; + + /* + * DP AUX CH Address Register #2, only update bits[3:0] + * [7:4] RESERVED + * [3:0] AUX_ADDR[19:16], Register control AUX CH address. + */ + err = regmap_update_bits(anx78xx->map[I2C_IDX_TX_P0], + SP_AUX_ADDR_19_16_REG, + SP_AUX_ADDR_19_16_MASK, + (addr & 0xf0000) >> 16); + + if (err) + return err; + + return 0; +} + +static ssize_t anx78xx_aux_transfer(struct drm_dp_aux *aux, + struct drm_dp_aux_msg *msg) +{ + struct anx78xx *anx78xx = container_of(aux, struct anx78xx, aux); + u8 ctrl1 = msg->request; + u8 ctrl2 = SP_AUX_EN; + u8 *buffer = msg->buffer; + int err; + + /* The DP AUX transmit and receive buffer has 16 bytes. */ + if (WARN_ON(msg->size > AUX_CH_BUFFER_SIZE)) + return -E2BIG; + + /* Zero-sized messages specify address-only transactions. */ + if (msg->size < 1) + ctrl2 |= SP_ADDR_ONLY; + else /* For non-zero-sized set the length field. */ + ctrl1 |= (msg->size - 1) << SP_AUX_LENGTH_SHIFT; + + if ((msg->request & DP_AUX_I2C_READ) == 0) { + /* When WRITE | MOT write values to data buffer */ + err = regmap_bulk_write(anx78xx->map[I2C_IDX_TX_P0], + SP_DP_BUF_DATA0_REG, buffer, + msg->size); + if (err) + return err; + } + + /* Write address and request */ + err = anx78xx_aux_address(anx78xx, msg->address); + if (err) + return err; + + err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], SP_DP_AUX_CH_CTRL1_REG, + ctrl1); + if (err) + return err; + + /* Start transaction */ + err = regmap_update_bits(anx78xx->map[I2C_IDX_TX_P0], + SP_DP_AUX_CH_CTRL2_REG, SP_ADDR_ONLY | + SP_AUX_EN, ctrl2); + if (err) + return err; + + err = anx78xx_aux_wait(anx78xx); + if (err) + return err; + + msg->reply = DP_AUX_I2C_REPLY_ACK; + + if ((msg->size > 0) && (msg->request & DP_AUX_I2C_READ)) { + /* Read values from data buffer */ + err = regmap_bulk_read(anx78xx->map[I2C_IDX_TX_P0], + SP_DP_BUF_DATA0_REG, buffer, + msg->size); + if (err) + return err; + } + + err = anx78xx_clear_bits(anx78xx->map[I2C_IDX_TX_P0], + SP_DP_AUX_CH_CTRL2_REG, SP_ADDR_ONLY); + if (err) + return err; + + return msg->size; +} + +static int anx78xx_set_hpd(struct anx78xx *anx78xx) +{ + int err; + + err = anx78xx_clear_bits(anx78xx->map[I2C_IDX_RX_P0], + SP_TMDS_CTRL_BASE + 7, SP_PD_RT); + if (err) + return err; + + err = anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P2], SP_VID_CTRL3_REG, + SP_HPD_OUT); + if (err) + return err; + + return 0; +} + +static int anx78xx_clear_hpd(struct anx78xx *anx78xx) +{ + int err; + + err = anx78xx_clear_bits(anx78xx->map[I2C_IDX_TX_P2], SP_VID_CTRL3_REG, + SP_HPD_OUT); + if (err) + return err; + + err = anx78xx_set_bits(anx78xx->map[I2C_IDX_RX_P0], + SP_TMDS_CTRL_BASE + 7, SP_PD_RT); + if (err) + return err; + + return 0; +} + +static const struct reg_sequence tmds_phy_initialization[] = { + { SP_TMDS_CTRL_BASE + 1, 0x90 }, + { SP_TMDS_CTRL_BASE + 2, 0xa9 }, + { SP_TMDS_CTRL_BASE + 6, 0x92 }, + { SP_TMDS_CTRL_BASE + 7, 0x80 }, + { SP_TMDS_CTRL_BASE + 20, 0xf2 }, + { SP_TMDS_CTRL_BASE + 22, 0xc4 }, + { SP_TMDS_CTRL_BASE + 23, 0x18 }, +}; + +static int anx78xx_rx_initialization(struct anx78xx *anx78xx) +{ + int err; + + err = regmap_write(anx78xx->map[I2C_IDX_RX_P0], SP_HDMI_MUTE_CTRL_REG, + SP_AUD_MUTE | SP_VID_MUTE); + if (err) + return err; + + err = anx78xx_set_bits(anx78xx->map[I2C_IDX_RX_P0], SP_CHIP_CTRL_REG, + SP_MAN_HDMI5V_DET | SP_PLLLOCK_CKDT_EN | + SP_DIGITAL_CKDT_EN); + if (err) + return err; + + err = anx78xx_set_bits(anx78xx->map[I2C_IDX_RX_P0], + SP_SOFTWARE_RESET1_REG, SP_HDCP_MAN_RST | + SP_SW_MAN_RST | SP_TMDS_RST | SP_VIDEO_RST); + if (err) + return err; + + err = anx78xx_clear_bits(anx78xx->map[I2C_IDX_RX_P0], + SP_SOFTWARE_RESET1_REG, SP_HDCP_MAN_RST | + SP_SW_MAN_RST | SP_TMDS_RST | SP_VIDEO_RST); + if (err) + return err; + + /* Sync detect change, GP set mute */ + err = anx78xx_set_bits(anx78xx->map[I2C_IDX_RX_P0], + SP_AUD_EXCEPTION_ENABLE_BASE + 1, BIT(5) | + BIT(6)); + if (err) + return err; + + err = anx78xx_set_bits(anx78xx->map[I2C_IDX_RX_P0], + SP_AUD_EXCEPTION_ENABLE_BASE + 3, + SP_AEC_EN21); + if (err) + return err; + + err = anx78xx_set_bits(anx78xx->map[I2C_IDX_RX_P0], SP_AUDVID_CTRL_REG, + SP_AVC_EN | SP_AAC_OE | SP_AAC_EN); + if (err) + return err; + + err = anx78xx_clear_bits(anx78xx->map[I2C_IDX_RX_P0], + SP_SYSTEM_POWER_DOWN1_REG, SP_PWDN_CTRL); + if (err) + return err; + + err = anx78xx_set_bits(anx78xx->map[I2C_IDX_RX_P0], + SP_VID_DATA_RANGE_CTRL_REG, SP_R2Y_INPUT_LIMIT); + if (err) + return err; + + /* Enable DDC stretch */ + err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], + SP_DP_EXTRA_I2C_DEV_ADDR_REG, SP_I2C_EXTRA_ADDR); + if (err) + return err; + + /* TMDS phy initialization */ + err = regmap_multi_reg_write(anx78xx->map[I2C_IDX_RX_P0], + tmds_phy_initialization, + ARRAY_SIZE(tmds_phy_initialization)); + if (err) + return err; + + err = anx78xx_clear_hpd(anx78xx); + if (err) + return err; + + return 0; +} + +static const u8 dp_tx_output_precise_tune_bits[20] = { + 0x01, 0x03, 0x07, 0x7f, 0x71, 0x6b, 0x7f, + 0x73, 0x7f, 0x7f, 0x00, 0x00, 0x00, 0x00, + 0x0c, 0x42, 0x1e, 0x3e, 0x72, 0x7e, +}; + +static int anx78xx_link_phy_initialization(struct anx78xx *anx78xx) +{ + int err; + + /* + * REVISIT : It is writing to a RESERVED bits in Analog Control 0 + * register. + */ + err = regmap_write(anx78xx->map[I2C_IDX_TX_P2], SP_ANALOG_CTRL0_REG, + 0x02); + if (err) + return err; + + /* + * Write DP TX output emphasis precise tune bits. + */ + err = regmap_bulk_write(anx78xx->map[I2C_IDX_TX_P1], + SP_DP_TX_LT_CTRL0_REG, + dp_tx_output_precise_tune_bits, + ARRAY_SIZE(dp_tx_output_precise_tune_bits)); + + if (err) + return err; + + return 0; +} + +static int anx78xx_xtal_clk_sel(struct anx78xx *anx78xx) +{ + unsigned int value; + int err; + + err = regmap_update_bits(anx78xx->map[I2C_IDX_TX_P2], + SP_ANALOG_DEBUG2_REG, + SP_XTAL_FRQ | SP_FORCE_SW_OFF_BYPASS, + SP_XTAL_FRQ_27M); + if (err) + return err; + + err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], SP_DP_AUX_CH_CTRL3_REG, + XTAL_CLK & SP_WAIT_COUNTER_7_0_MASK); + if (err) + return err; + + err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], SP_DP_AUX_CH_CTRL4_REG, + ((XTAL_CLK & 0xff00) >> 2) | (XTAL_CLK / 10)); + if (err) + return err; + + err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], + SP_I2C_GEN_10US_TIMER0_REG, XTAL_CLK & 0xff); + if (err) + return err; + + err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], + SP_I2C_GEN_10US_TIMER1_REG, + (XTAL_CLK & 0xff00) >> 8); + if (err) + return err; + + err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], SP_AUX_MISC_CTRL_REG, + XTAL_CLK / 10 - 1); + if (err) + return err; + + err = regmap_read(anx78xx->map[I2C_IDX_RX_P0], + SP_HDMI_US_TIMER_CTRL_REG, + &value); + if (err) + return err; + + err = regmap_write(anx78xx->map[I2C_IDX_RX_P0], + SP_HDMI_US_TIMER_CTRL_REG, + (value & SP_MS_TIMER_MARGIN_10_8_MASK) | + ((((XTAL_CLK / 10) >> 1) - 2) << 3)); + if (err) + return err; + + return 0; +} + +static const struct reg_sequence otp_key_protect[] = { + { SP_OTP_KEY_PROTECT1_REG, SP_OTP_PSW1 }, + { SP_OTP_KEY_PROTECT2_REG, SP_OTP_PSW2 }, + { SP_OTP_KEY_PROTECT3_REG, SP_OTP_PSW3 }, +}; + +static int anx78xx_tx_initialization(struct anx78xx *anx78xx) +{ + int err; + + /* Set terminal resistor to 50 ohm */ + err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], SP_DP_AUX_CH_CTRL2_REG, + 0x30); + if (err) + return err; + + /* Enable aux double diff output */ + err = anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P0], + SP_DP_AUX_CH_CTRL2_REG, 0x08); + if (err) + return err; + + err = anx78xx_clear_bits(anx78xx->map[I2C_IDX_TX_P0], + SP_DP_HDCP_CTRL_REG, SP_AUTO_EN | + SP_AUTO_START); + if (err) + return err; + + err = regmap_multi_reg_write(anx78xx->map[I2C_IDX_TX_P0], + otp_key_protect, + ARRAY_SIZE(otp_key_protect)); + if (err) + return err; + + err = anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P0], + SP_HDCP_KEY_COMMAND_REG, SP_DISABLE_SYNC_HDCP); + if (err) + return err; + + err = regmap_write(anx78xx->map[I2C_IDX_TX_P2], SP_VID_CTRL8_REG, + SP_VID_VRES_TH); + if (err) + return err; + + /* + * DP HDCP auto authentication wait timer (when downstream starts to + * auth, DP side will wait for this period then do auth automatically) + */ + err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], SP_HDCP_AUTO_TIMER_REG, + 0x00); + if (err) + return err; + + err = anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P0], + SP_DP_HDCP_CTRL_REG, SP_LINK_POLLING); + if (err) + return err; + + err = anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P0], + SP_DP_LINK_DEBUG_CTRL_REG, SP_M_VID_DEBUG); + if (err) + return err; + + err = anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P2], + SP_ANALOG_DEBUG2_REG, SP_POWERON_TIME_1P5MS); + if (err) + return err; + + err = anx78xx_xtal_clk_sel(anx78xx); + if (err) + return err; + + err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], SP_AUX_DEFER_CTRL_REG, + SP_DEFER_CTRL_EN | 0x0c); + if (err) + return err; + + err = anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P0], + SP_DP_POLLING_CTRL_REG, + SP_AUTO_POLLING_DISABLE); + if (err) + return err; + + /* + * Short the link integrity check timer to speed up bstatus + * polling for HDCP CTS item 1A-07 + */ + err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], + SP_HDCP_LINK_CHECK_TIMER_REG, 0x1d); + if (err) + return err; + + err = anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P0], + SP_DP_MISC_CTRL_REG, SP_EQ_TRAINING_LOOP); + if (err) + return err; + + /* Power down the main link by default */ + err = anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P0], + SP_DP_ANALOG_POWER_DOWN_REG, SP_CH0_PD); + if (err) + return err; + + err = anx78xx_link_phy_initialization(anx78xx); + if (err) + return err; + + /* Gen m_clk with downspreading */ + err = anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P0], + SP_DP_M_CALCULATION_CTRL_REG, SP_M_GEN_CLK_SEL); + if (err) + return err; + + return 0; +} + +static int anx78xx_enable_interrupts(struct anx78xx *anx78xx) +{ + int err; + + /* + * BIT0: INT pin assertion polarity: 1 = assert high + * BIT1: INT pin output type: 0 = push/pull + */ + err = regmap_write(anx78xx->map[I2C_IDX_TX_P2], SP_INT_CTRL_REG, 0x01); + if (err) + return err; + + err = regmap_write(anx78xx->map[I2C_IDX_TX_P2], + SP_COMMON_INT_MASK4_REG, SP_HPD_LOST | SP_HPD_PLUG); + if (err) + return err; + + err = regmap_write(anx78xx->map[I2C_IDX_TX_P2], SP_DP_INT_MASK1_REG, + SP_TRAINING_FINISH); + if (err) + return err; + + err = regmap_write(anx78xx->map[I2C_IDX_RX_P0], SP_INT_MASK1_REG, + SP_CKDT_CHG | SP_SCDT_CHG); + if (err) + return err; + + return 0; +} + +static void anx78xx_poweron(struct anx78xx *anx78xx) +{ + struct anx78xx_platform_data *pdata = &anx78xx->pdata; + int err; + + if (WARN_ON(anx78xx->powered)) + return; + + if (pdata->dvdd10) { + err = regulator_enable(pdata->dvdd10); + if (err) { + DRM_ERROR("Failed to enable DVDD10 regulator: %d\n", + err); + return; + } + + usleep_range(1000, 2000); + } + + gpiod_set_value_cansleep(pdata->gpiod_reset, 1); + usleep_range(1000, 2000); + + gpiod_set_value_cansleep(pdata->gpiod_pd, 0); + usleep_range(1000, 2000); + + gpiod_set_value_cansleep(pdata->gpiod_reset, 0); + + /* Power on registers module */ + anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P2], SP_POWERDOWN_CTRL_REG, + SP_HDCP_PD | SP_AUDIO_PD | SP_VIDEO_PD | SP_LINK_PD); + anx78xx_clear_bits(anx78xx->map[I2C_IDX_TX_P2], SP_POWERDOWN_CTRL_REG, + SP_REGISTER_PD | SP_TOTAL_PD); + + anx78xx->powered = true; +} + +static void anx78xx_poweroff(struct anx78xx *anx78xx) +{ + struct anx78xx_platform_data *pdata = &anx78xx->pdata; + int err; + + if (WARN_ON(!anx78xx->powered)) + return; + + gpiod_set_value_cansleep(pdata->gpiod_reset, 1); + usleep_range(1000, 2000); + + gpiod_set_value_cansleep(pdata->gpiod_pd, 1); + usleep_range(1000, 2000); + + if (pdata->dvdd10) { + err = regulator_disable(pdata->dvdd10); + if (err) { + DRM_ERROR("Failed to disable DVDD10 regulator: %d\n", + err); + return; + } + + usleep_range(1000, 2000); + } + + anx78xx->powered = false; +} + +static int anx78xx_start(struct anx78xx *anx78xx) +{ + int err; + + /* Power on all modules */ + err = anx78xx_clear_bits(anx78xx->map[I2C_IDX_TX_P2], + SP_POWERDOWN_CTRL_REG, + SP_HDCP_PD | SP_AUDIO_PD | SP_VIDEO_PD | + SP_LINK_PD); + + err = anx78xx_enable_interrupts(anx78xx); + if (err) { + DRM_ERROR("Failed to enable interrupts: %d\n", err); + goto err_poweroff; + } + + err = anx78xx_rx_initialization(anx78xx); + if (err) { + DRM_ERROR("Failed receiver initialization: %d\n", err); + goto err_poweroff; + } + + err = anx78xx_tx_initialization(anx78xx); + if (err) { + DRM_ERROR("Failed transmitter initialization: %d\n", err); + goto err_poweroff; + } + + /* + * This delay seems to help keep the hardware in a good state. Without + * it, there are times where it fails silently. + */ + usleep_range(10000, 15000); + + return 0; + +err_poweroff: + DRM_ERROR("Failed SlimPort transmitter initialization: %d\n", err); + anx78xx_poweroff(anx78xx); + + return err; +} + +static int anx78xx_init_pdata(struct anx78xx *anx78xx) +{ + struct anx78xx_platform_data *pdata = &anx78xx->pdata; + struct device *dev = &anx78xx->client->dev; + + /* 1.0V digital core power regulator */ + pdata->dvdd10 = devm_regulator_get(dev, "dvdd10"); + if (IS_ERR(pdata->dvdd10)) { + DRM_ERROR("DVDD10 regulator not found\n"); + return PTR_ERR(pdata->dvdd10); + } + + /* GPIO for HPD */ + pdata->gpiod_hpd = devm_gpiod_get(dev, "hpd", GPIOD_IN); + if (IS_ERR(pdata->gpiod_hpd)) + return PTR_ERR(pdata->gpiod_hpd); + + /* GPIO for chip power down */ + pdata->gpiod_pd = devm_gpiod_get(dev, "pd", GPIOD_OUT_HIGH); + if (IS_ERR(pdata->gpiod_pd)) + return PTR_ERR(pdata->gpiod_pd); + + /* GPIO for chip reset */ + pdata->gpiod_reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); + + return PTR_ERR_OR_ZERO(pdata->gpiod_reset); +} + +static int anx78xx_dp_link_training(struct anx78xx *anx78xx) +{ + u8 dp_bw, value; + int err; + + err = regmap_write(anx78xx->map[I2C_IDX_RX_P0], SP_HDMI_MUTE_CTRL_REG, + 0x0); + if (err) + return err; + + err = anx78xx_clear_bits(anx78xx->map[I2C_IDX_TX_P2], + SP_POWERDOWN_CTRL_REG, + SP_TOTAL_PD); + if (err) + return err; + + err = drm_dp_dpcd_readb(&anx78xx->aux, DP_MAX_LINK_RATE, &dp_bw); + if (err < 0) + return err; + + switch (dp_bw) { + case DP_LINK_BW_1_62: + case DP_LINK_BW_2_7: + case DP_LINK_BW_5_4: + break; + + default: + DRM_DEBUG_KMS("DP bandwidth (%#02x) not supported\n", dp_bw); + return -EINVAL; + } + + err = anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P2], SP_VID_CTRL1_REG, + SP_VIDEO_MUTE); + if (err) + return err; + + err = anx78xx_clear_bits(anx78xx->map[I2C_IDX_TX_P2], + SP_VID_CTRL1_REG, SP_VIDEO_EN); + if (err) + return err; + + /* Get DPCD info */ + err = drm_dp_dpcd_read(&anx78xx->aux, DP_DPCD_REV, + &anx78xx->dpcd, DP_RECEIVER_CAP_SIZE); + if (err < 0) { + DRM_ERROR("Failed to read DPCD: %d\n", err); + return err; + } + + /* Clear channel x SERDES power down */ + err = anx78xx_clear_bits(anx78xx->map[I2C_IDX_TX_P0], + SP_DP_ANALOG_POWER_DOWN_REG, SP_CH0_PD); + if (err) + return err; + + /* Check link capabilities */ + err = drm_dp_link_probe(&anx78xx->aux, &anx78xx->link); + if (err < 0) { + DRM_ERROR("Failed to probe link capabilities: %d\n", err); + return err; + } + + /* Power up the sink */ + err = drm_dp_link_power_up(&anx78xx->aux, &anx78xx->link); + if (err < 0) { + DRM_ERROR("Failed to power up DisplayPort link: %d\n", err); + return err; + } + + /* Possibly enable downspread on the sink */ + err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], + SP_DP_DOWNSPREAD_CTRL1_REG, 0); + if (err) + return err; + + if (anx78xx->dpcd[DP_MAX_DOWNSPREAD] & DP_MAX_DOWNSPREAD_0_5) { + DRM_DEBUG("Enable downspread on the sink\n"); + /* 4000PPM */ + err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], + SP_DP_DOWNSPREAD_CTRL1_REG, 8); + if (err) + return err; + + err = drm_dp_dpcd_writeb(&anx78xx->aux, DP_DOWNSPREAD_CTRL, + DP_SPREAD_AMP_0_5); + if (err < 0) + return err; + } else { + err = drm_dp_dpcd_writeb(&anx78xx->aux, DP_DOWNSPREAD_CTRL, 0); + if (err < 0) + return err; + } + + /* Set the lane count and the link rate on the sink */ + if (drm_dp_enhanced_frame_cap(anx78xx->dpcd)) + err = anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P0], + SP_DP_SYSTEM_CTRL_BASE + 4, + SP_ENHANCED_MODE); + else + err = anx78xx_clear_bits(anx78xx->map[I2C_IDX_TX_P0], + SP_DP_SYSTEM_CTRL_BASE + 4, + SP_ENHANCED_MODE); + if (err) + return err; + + value = drm_dp_link_rate_to_bw_code(anx78xx->link.rate); + err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], + SP_DP_MAIN_LINK_BW_SET_REG, value); + if (err) + return err; + + err = drm_dp_link_configure(&anx78xx->aux, &anx78xx->link); + if (err < 0) { + DRM_ERROR("Failed to configure DisplayPort link: %d\n", err); + return err; + } + + /* Start training on the source */ + err = regmap_write(anx78xx->map[I2C_IDX_TX_P0], SP_DP_LT_CTRL_REG, + SP_LT_EN); + if (err) + return err; + + return 0; +} + +static int anx78xx_config_dp_output(struct anx78xx *anx78xx) +{ + int err; + + err = anx78xx_clear_bits(anx78xx->map[I2C_IDX_TX_P2], SP_VID_CTRL1_REG, + SP_VIDEO_MUTE); + if (err) + return err; + + /* Enable DP output */ + err = anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P2], SP_VID_CTRL1_REG, + SP_VIDEO_EN); + if (err) + return err; + + return 0; +} + +static int anx78xx_send_video_infoframe(struct anx78xx *anx78xx, + struct hdmi_avi_infoframe *frame) +{ + u8 buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AVI_INFOFRAME_SIZE]; + int err; + + err = hdmi_avi_infoframe_pack(frame, buffer, sizeof(buffer)); + if (err < 0) { + DRM_ERROR("Failed to pack AVI infoframe: %d\n", err); + return err; + } + + err = anx78xx_clear_bits(anx78xx->map[I2C_IDX_TX_P0], + SP_PACKET_SEND_CTRL_REG, SP_AVI_IF_EN); + if (err) + return err; + + err = regmap_bulk_write(anx78xx->map[I2C_IDX_TX_P2], + SP_INFOFRAME_AVI_DB1_REG, buffer, + frame->length); + if (err) + return err; + + err = anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P0], + SP_PACKET_SEND_CTRL_REG, SP_AVI_IF_UD); + if (err) + return err; + + err = anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P0], + SP_PACKET_SEND_CTRL_REG, SP_AVI_IF_EN); + if (err) + return err; + + return 0; +} + +static int anx78xx_get_downstream_info(struct anx78xx *anx78xx) +{ + u8 value; + int err; + + err = drm_dp_dpcd_readb(&anx78xx->aux, DP_SINK_COUNT, &value); + if (err < 0) { + DRM_ERROR("Get sink count failed %d\n", err); + return err; + } + + if (!DP_GET_SINK_COUNT(value)) { + DRM_ERROR("Downstream disconnected\n"); + return -EIO; + } + + return 0; +} + +static int anx78xx_get_modes(struct drm_connector *connector) +{ + struct anx78xx *anx78xx = connector_to_anx78xx(connector); + int err, num_modes = 0; + + if (WARN_ON(!anx78xx->powered)) + return 0; + + if (anx78xx->edid) + return drm_add_edid_modes(connector, anx78xx->edid); + + mutex_lock(&anx78xx->lock); + + err = anx78xx_get_downstream_info(anx78xx); + if (err) { + DRM_ERROR("Failed to get downstream info: %d\n", err); + goto unlock; + } + + anx78xx->edid = drm_get_edid(connector, &anx78xx->aux.ddc); + if (!anx78xx->edid) { + DRM_ERROR("Failed to read EDID\n"); + goto unlock; + } + + err = drm_connector_update_edid_property(connector, + anx78xx->edid); + if (err) { + DRM_ERROR("Failed to update EDID property: %d\n", err); + goto unlock; + } + + num_modes = drm_add_edid_modes(connector, anx78xx->edid); + +unlock: + mutex_unlock(&anx78xx->lock); + + return num_modes; +} + +static const struct drm_connector_helper_funcs anx78xx_connector_helper_funcs = { + .get_modes = anx78xx_get_modes, +}; + +static enum drm_connector_status anx78xx_detect(struct drm_connector *connector, + bool force) +{ + struct anx78xx *anx78xx = connector_to_anx78xx(connector); + + if (!gpiod_get_value(anx78xx->pdata.gpiod_hpd)) + return connector_status_disconnected; + + return connector_status_connected; +} + +static const struct drm_connector_funcs anx78xx_connector_funcs = { + .fill_modes = drm_helper_probe_single_connector_modes, + .detect = anx78xx_detect, + .destroy = drm_connector_cleanup, + .reset = drm_atomic_helper_connector_reset, + .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, +}; + +static int anx78xx_bridge_attach(struct drm_bridge *bridge) +{ + struct anx78xx *anx78xx = bridge_to_anx78xx(bridge); + int err; + + if (!bridge->encoder) { + DRM_ERROR("Parent encoder object not found"); + return -ENODEV; + } + + /* Register aux channel */ + anx78xx->aux.name = "DP-AUX"; + anx78xx->aux.dev = &anx78xx->client->dev; + anx78xx->aux.transfer = anx78xx_aux_transfer; + + err = drm_dp_aux_register(&anx78xx->aux); + if (err < 0) { + DRM_ERROR("Failed to register aux channel: %d\n", err); + return err; + } + + err = drm_connector_init(bridge->dev, &anx78xx->connector, + &anx78xx_connector_funcs, + DRM_MODE_CONNECTOR_DisplayPort); + if (err) { + DRM_ERROR("Failed to initialize connector: %d\n", err); + return err; + } + + drm_connector_helper_add(&anx78xx->connector, + &anx78xx_connector_helper_funcs); + + err = drm_connector_register(&anx78xx->connector); + if (err) { + DRM_ERROR("Failed to register connector: %d\n", err); + return err; + } + + anx78xx->connector.polled = DRM_CONNECTOR_POLL_HPD; + + err = drm_connector_attach_encoder(&anx78xx->connector, + bridge->encoder); + if (err) { + DRM_ERROR("Failed to link up connector to encoder: %d\n", err); + return err; + } + + return 0; +} + +static enum drm_mode_status +anx78xx_bridge_mode_valid(struct drm_bridge *bridge, + const struct drm_display_mode *mode) +{ + if (mode->flags & DRM_MODE_FLAG_INTERLACE) + return MODE_NO_INTERLACE; + + /* Max 1200p at 5.4 Ghz, one lane */ + if (mode->clock > 154000) + return MODE_CLOCK_HIGH; + + return MODE_OK; +} + +static void anx78xx_bridge_disable(struct drm_bridge *bridge) +{ + struct anx78xx *anx78xx = bridge_to_anx78xx(bridge); + + /* Power off all modules except configuration registers access */ + anx78xx_set_bits(anx78xx->map[I2C_IDX_TX_P2], SP_POWERDOWN_CTRL_REG, + SP_HDCP_PD | SP_AUDIO_PD | SP_VIDEO_PD | SP_LINK_PD); +} + +static void anx78xx_bridge_mode_set(struct drm_bridge *bridge, + const struct drm_display_mode *mode, + const struct drm_display_mode *adjusted_mode) +{ + struct anx78xx *anx78xx = bridge_to_anx78xx(bridge); + struct hdmi_avi_infoframe frame; + int err; + + if (WARN_ON(!anx78xx->powered)) + return; + + mutex_lock(&anx78xx->lock); + + err = drm_hdmi_avi_infoframe_from_display_mode(&frame, + &anx78xx->connector, + adjusted_mode); + if (err) { + DRM_ERROR("Failed to setup AVI infoframe: %d\n", err); + goto unlock; + } + + err = anx78xx_send_video_infoframe(anx78xx, &frame); + if (err) + DRM_ERROR("Failed to send AVI infoframe: %d\n", err); + +unlock: + mutex_unlock(&anx78xx->lock); +} + +static void anx78xx_bridge_enable(struct drm_bridge *bridge) +{ + struct anx78xx *anx78xx = bridge_to_anx78xx(bridge); + int err; + + err = anx78xx_start(anx78xx); + if (err) { + DRM_ERROR("Failed to initialize: %d\n", err); + return; + } + + err = anx78xx_set_hpd(anx78xx); + if (err) + DRM_ERROR("Failed to set HPD: %d\n", err); +} + +static const struct drm_bridge_funcs anx78xx_bridge_funcs = { + .attach = anx78xx_bridge_attach, + .mode_valid = anx78xx_bridge_mode_valid, + .disable = anx78xx_bridge_disable, + .mode_set = anx78xx_bridge_mode_set, + .enable = anx78xx_bridge_enable, +}; + +static irqreturn_t anx78xx_hpd_threaded_handler(int irq, void *data) +{ + struct anx78xx *anx78xx = data; + int err; + + if (anx78xx->powered) + return IRQ_HANDLED; + + mutex_lock(&anx78xx->lock); + + /* Cable is pulled, power on the chip */ + anx78xx_poweron(anx78xx); + + err = anx78xx_enable_interrupts(anx78xx); + if (err) + DRM_ERROR("Failed to enable interrupts: %d\n", err); + + mutex_unlock(&anx78xx->lock); + + return IRQ_HANDLED; +} + +static int anx78xx_handle_dp_int_1(struct anx78xx *anx78xx, u8 irq) +{ + int err; + + DRM_DEBUG_KMS("Handle DP interrupt 1: %02x\n", irq); + + err = regmap_write(anx78xx->map[I2C_IDX_TX_P2], SP_DP_INT_STATUS1_REG, + irq); + if (err) + return err; + + if (irq & SP_TRAINING_FINISH) { + DRM_DEBUG_KMS("IRQ: hardware link training finished\n"); + err = anx78xx_config_dp_output(anx78xx); + } + + return err; +} + +static bool anx78xx_handle_common_int_4(struct anx78xx *anx78xx, u8 irq) +{ + bool event = false; + int err; + + DRM_DEBUG_KMS("Handle common interrupt 4: %02x\n", irq); + + err = regmap_write(anx78xx->map[I2C_IDX_TX_P2], + SP_COMMON_INT_STATUS4_REG, irq); + if (err) { + DRM_ERROR("Failed to write SP_COMMON_INT_STATUS4 %d\n", err); + return event; + } + + if (irq & SP_HPD_LOST) { + DRM_DEBUG_KMS("IRQ: Hot plug detect - cable is pulled out\n"); + event = true; + anx78xx_poweroff(anx78xx); + /* Free cached EDID */ + kfree(anx78xx->edid); + anx78xx->edid = NULL; + } else if (irq & SP_HPD_PLUG) { + DRM_DEBUG_KMS("IRQ: Hot plug detect - cable plug\n"); + event = true; + } + + return event; +} + +static void anx78xx_handle_hdmi_int_1(struct anx78xx *anx78xx, u8 irq) +{ + unsigned int value; + int err; + + DRM_DEBUG_KMS("Handle HDMI interrupt 1: %02x\n", irq); + + err = regmap_write(anx78xx->map[I2C_IDX_RX_P0], SP_INT_STATUS1_REG, + irq); + if (err) { + DRM_ERROR("Write HDMI int 1 failed: %d\n", err); + return; + } + + if ((irq & SP_CKDT_CHG) || (irq & SP_SCDT_CHG)) { + DRM_DEBUG_KMS("IRQ: HDMI input detected\n"); + + err = regmap_read(anx78xx->map[I2C_IDX_RX_P0], + SP_SYSTEM_STATUS_REG, &value); + if (err) { + DRM_ERROR("Read system status reg failed: %d\n", err); + return; + } + + if (!(value & SP_TMDS_CLOCK_DET)) { + DRM_DEBUG_KMS("IRQ: *** Waiting for HDMI clock ***\n"); + return; + } + + if (!(value & SP_TMDS_DE_DET)) { + DRM_DEBUG_KMS("IRQ: *** Waiting for HDMI signal ***\n"); + return; + } + + err = anx78xx_dp_link_training(anx78xx); + if (err) + DRM_ERROR("Failed to start link training: %d\n", err); + } +} + +static irqreturn_t anx78xx_intp_threaded_handler(int unused, void *data) +{ + struct anx78xx *anx78xx = data; + bool event = false; + unsigned int irq; + int err; + + mutex_lock(&anx78xx->lock); + + err = regmap_read(anx78xx->map[I2C_IDX_TX_P2], SP_DP_INT_STATUS1_REG, + &irq); + if (err) { + DRM_ERROR("Failed to read DP interrupt 1 status: %d\n", err); + goto unlock; + } + + if (irq) + anx78xx_handle_dp_int_1(anx78xx, irq); + + err = regmap_read(anx78xx->map[I2C_IDX_TX_P2], + SP_COMMON_INT_STATUS4_REG, &irq); + if (err) { + DRM_ERROR("Failed to read common interrupt 4 status: %d\n", + err); + goto unlock; + } + + if (irq) + event = anx78xx_handle_common_int_4(anx78xx, irq); + + /* Make sure we are still powered after handle HPD events */ + if (!anx78xx->powered) + goto unlock; + + err = regmap_read(anx78xx->map[I2C_IDX_RX_P0], SP_INT_STATUS1_REG, + &irq); + if (err) { + DRM_ERROR("Failed to read HDMI int 1 status: %d\n", err); + goto unlock; + } + + if (irq) + anx78xx_handle_hdmi_int_1(anx78xx, irq); + +unlock: + mutex_unlock(&anx78xx->lock); + + if (event) + drm_helper_hpd_irq_event(anx78xx->connector.dev); + + return IRQ_HANDLED; +} + +static void unregister_i2c_dummy_clients(struct anx78xx *anx78xx) +{ + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(anx78xx->i2c_dummy); i++) + i2c_unregister_device(anx78xx->i2c_dummy[i]); +} + +static const struct regmap_config anx78xx_regmap_config = { + .reg_bits = 8, + .val_bits = 8, +}; + +static const u16 anx78xx_chipid_list[] = { + 0x7812, + 0x7814, + 0x7818, +}; + +static int anx78xx_i2c_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct anx78xx *anx78xx; + struct anx78xx_platform_data *pdata; + unsigned int i, idl, idh, version; + bool found = false; + int err; + + anx78xx = devm_kzalloc(&client->dev, sizeof(*anx78xx), GFP_KERNEL); + if (!anx78xx) + return -ENOMEM; + + pdata = &anx78xx->pdata; + + mutex_init(&anx78xx->lock); + +#if IS_ENABLED(CONFIG_OF) + anx78xx->bridge.of_node = client->dev.of_node; +#endif + + anx78xx->client = client; + i2c_set_clientdata(client, anx78xx); + + err = anx78xx_init_pdata(anx78xx); + if (err) { + DRM_ERROR("Failed to initialize pdata: %d\n", err); + return err; + } + + pdata->hpd_irq = gpiod_to_irq(pdata->gpiod_hpd); + if (pdata->hpd_irq < 0) { + DRM_ERROR("Failed to get HPD IRQ: %d\n", pdata->hpd_irq); + return -ENODEV; + } + + pdata->intp_irq = client->irq; + if (!pdata->intp_irq) { + DRM_ERROR("Failed to get CABLE_DET and INTP IRQ\n"); + return -ENODEV; + } + + /* Map slave addresses of ANX7814 */ + for (i = 0; i < I2C_NUM_ADDRESSES; i++) { + anx78xx->i2c_dummy[i] = i2c_new_dummy(client->adapter, + anx78xx_i2c_addresses[i] >> 1); + if (!anx78xx->i2c_dummy[i]) { + err = -ENOMEM; + DRM_ERROR("Failed to reserve I2C bus %02x\n", + anx78xx_i2c_addresses[i]); + goto err_unregister_i2c; + } + + anx78xx->map[i] = devm_regmap_init_i2c(anx78xx->i2c_dummy[i], + &anx78xx_regmap_config); + if (IS_ERR(anx78xx->map[i])) { + err = PTR_ERR(anx78xx->map[i]); + DRM_ERROR("Failed regmap initialization %02x\n", + anx78xx_i2c_addresses[i]); + goto err_unregister_i2c; + } + } + + /* Look for supported chip ID */ + anx78xx_poweron(anx78xx); + + err = regmap_read(anx78xx->map[I2C_IDX_TX_P2], SP_DEVICE_IDL_REG, + &idl); + if (err) + goto err_poweroff; + + err = regmap_read(anx78xx->map[I2C_IDX_TX_P2], SP_DEVICE_IDH_REG, + &idh); + if (err) + goto err_poweroff; + + anx78xx->chipid = (u8)idl | ((u8)idh << 8); + + err = regmap_read(anx78xx->map[I2C_IDX_TX_P2], SP_DEVICE_VERSION_REG, + &version); + if (err) + goto err_poweroff; + + for (i = 0; i < ARRAY_SIZE(anx78xx_chipid_list); i++) { + if (anx78xx->chipid == anx78xx_chipid_list[i]) { + DRM_INFO("Found ANX%x (ver. %d) SlimPort Transmitter\n", + anx78xx->chipid, version); + found = true; + break; + } + } + + if (!found) { + DRM_ERROR("ANX%x (ver. %d) not supported by this driver\n", + anx78xx->chipid, version); + err = -ENODEV; + goto err_poweroff; + } + + err = devm_request_threaded_irq(&client->dev, pdata->hpd_irq, NULL, + anx78xx_hpd_threaded_handler, + IRQF_TRIGGER_RISING | IRQF_ONESHOT, + "anx78xx-hpd", anx78xx); + if (err) { + DRM_ERROR("Failed to request CABLE_DET threaded IRQ: %d\n", + err); + goto err_poweroff; + } + + err = devm_request_threaded_irq(&client->dev, pdata->intp_irq, NULL, + anx78xx_intp_threaded_handler, + IRQF_TRIGGER_RISING | IRQF_ONESHOT, + "anx78xx-intp", anx78xx); + if (err) { + DRM_ERROR("Failed to request INTP threaded IRQ: %d\n", err); + goto err_poweroff; + } + + anx78xx->bridge.funcs = &anx78xx_bridge_funcs; + + drm_bridge_add(&anx78xx->bridge); + + /* If cable is pulled out, just poweroff and wait for HPD event */ + if (!gpiod_get_value(anx78xx->pdata.gpiod_hpd)) + anx78xx_poweroff(anx78xx); + + return 0; + +err_poweroff: + anx78xx_poweroff(anx78xx); + +err_unregister_i2c: + unregister_i2c_dummy_clients(anx78xx); + return err; +} + +static int anx78xx_i2c_remove(struct i2c_client *client) +{ + struct anx78xx *anx78xx = i2c_get_clientdata(client); + + drm_bridge_remove(&anx78xx->bridge); + + unregister_i2c_dummy_clients(anx78xx); + + kfree(anx78xx->edid); + + return 0; +} + +static const struct i2c_device_id anx78xx_id[] = { + { "anx7814", 0 }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(i2c, anx78xx_id); + +#if IS_ENABLED(CONFIG_OF) +static const struct of_device_id anx78xx_match_table[] = { + { .compatible = "analogix,anx7814", }, + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(of, anx78xx_match_table); +#endif + +static struct i2c_driver anx78xx_driver = { + .driver = { + .name = "anx7814", + .of_match_table = of_match_ptr(anx78xx_match_table), + }, + .probe = anx78xx_i2c_probe, + .remove = anx78xx_i2c_remove, + .id_table = anx78xx_id, +}; +module_i2c_driver(anx78xx_driver); + +MODULE_DESCRIPTION("ANX78xx SlimPort Transmitter driver"); +MODULE_AUTHOR("Enric Balletbo i Serra "); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.h b/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.h new file mode 100644 index 0000000..25e063b --- /dev/null +++ b/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.h @@ -0,0 +1,710 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright(c) 2016, Analogix Semiconductor. All rights reserved. + */ + +#ifndef __ANX78xx_H +#define __ANX78xx_H + +#define TX_P0 0x70 +#define TX_P1 0x7a +#define TX_P2 0x72 + +#define RX_P0 0x7e +#define RX_P1 0x80 + +/***************************************************************/ +/* Register definition of device address 0x7e */ +/***************************************************************/ + +/* + * System Control and Status + */ + +/* Software Reset Register 1 */ +#define SP_SOFTWARE_RESET1_REG 0x11 +#define SP_VIDEO_RST BIT(4) +#define SP_HDCP_MAN_RST BIT(2) +#define SP_TMDS_RST BIT(1) +#define SP_SW_MAN_RST BIT(0) + +/* System Status Register */ +#define SP_SYSTEM_STATUS_REG 0x14 +#define SP_TMDS_CLOCK_DET BIT(1) +#define SP_TMDS_DE_DET BIT(0) + +/* HDMI Status Register */ +#define SP_HDMI_STATUS_REG 0x15 +#define SP_HDMI_AUD_LAYOUT BIT(3) +#define SP_HDMI_DET BIT(0) +# define SP_DVI_MODE 0 +# define SP_HDMI_MODE 1 + +/* HDMI Mute Control Register */ +#define SP_HDMI_MUTE_CTRL_REG 0x16 +#define SP_AUD_MUTE BIT(1) +#define SP_VID_MUTE BIT(0) + +/* System Power Down Register 1 */ +#define SP_SYSTEM_POWER_DOWN1_REG 0x18 +#define SP_PWDN_CTRL BIT(0) + +/* + * Audio and Video Auto Control + */ + +/* Auto Audio and Video Control register */ +#define SP_AUDVID_CTRL_REG 0x20 +#define SP_AVC_OE BIT(7) +#define SP_AAC_OE BIT(6) +#define SP_AVC_EN BIT(1) +#define SP_AAC_EN BIT(0) + +/* Audio Exception Enable Registers */ +#define SP_AUD_EXCEPTION_ENABLE_BASE (0x24 - 1) +/* Bits for Audio Exception Enable Register 3 */ +#define SP_AEC_EN21 BIT(5) + +/* + * Interrupt + */ + +/* Interrupt Status Register 1 */ +#define SP_INT_STATUS1_REG 0x31 +/* Bits for Interrupt Status Register 1 */ +#define SP_HDMI_DVI BIT(7) +#define SP_CKDT_CHG BIT(6) +#define SP_SCDT_CHG BIT(5) +#define SP_PCLK_CHG BIT(4) +#define SP_PLL_UNLOCK BIT(3) +#define SP_CABLE_PLUG_CHG BIT(2) +#define SP_SET_MUTE BIT(1) +#define SP_SW_INTR BIT(0) +/* Bits for Interrupt Status Register 2 */ +#define SP_HDCP_ERR BIT(5) +#define SP_AUDIO_SAMPLE_CHG BIT(0) /* undocumented */ +/* Bits for Interrupt Status Register 3 */ +#define SP_AUD_MODE_CHG BIT(0) +/* Bits for Interrupt Status Register 5 */ +#define SP_AUDIO_RCV BIT(0) +/* Bits for Interrupt Status Register 6 */ +#define SP_INT_STATUS6_REG 0x36 +#define SP_CTS_RCV BIT(7) +#define SP_NEW_AUD_PKT BIT(4) +#define SP_NEW_AVI_PKT BIT(1) +#define SP_NEW_CP_PKT BIT(0) +/* Bits for Interrupt Status Register 7 */ +#define SP_NO_VSI BIT(7) +#define SP_NEW_VS BIT(4) + +/* Interrupt Mask 1 Status Registers */ +#define SP_INT_MASK1_REG 0x41 + +/* HDMI US TIMER Control Register */ +#define SP_HDMI_US_TIMER_CTRL_REG 0x49 +#define SP_MS_TIMER_MARGIN_10_8_MASK 0x07 + +/* + * TMDS Control + */ + +/* TMDS Control Registers */ +#define SP_TMDS_CTRL_BASE (0x50 - 1) +/* Bits for TMDS Control Register 7 */ +#define SP_PD_RT BIT(0) + +/* + * Video Control + */ + +/* Video Status Register */ +#define SP_VIDEO_STATUS_REG 0x70 +#define SP_COLOR_DEPTH_MASK 0xf0 +#define SP_COLOR_DEPTH_SHIFT 4 +# define SP_COLOR_DEPTH_MODE_LEGACY 0x00 +# define SP_COLOR_DEPTH_MODE_24BIT 0x04 +# define SP_COLOR_DEPTH_MODE_30BIT 0x05 +# define SP_COLOR_DEPTH_MODE_36BIT 0x06 +# define SP_COLOR_DEPTH_MODE_48BIT 0x07 + +/* Video Data Range Control Register */ +#define SP_VID_DATA_RANGE_CTRL_REG 0x83 +#define SP_R2Y_INPUT_LIMIT BIT(1) + +/* Pixel Clock High Resolution Counter Registers */ +#define SP_PCLK_HIGHRES_CNT_BASE (0x8c - 1) + +/* + * Audio Control + */ + +/* Number of Audio Channels Status Registers */ +#define SP_AUD_CH_STATUS_REG_NUM 6 + +/* Audio IN S/PDIF Channel Status Registers */ +#define SP_AUD_SPDIF_CH_STATUS_BASE 0xc7 + +/* Audio IN S/PDIF Channel Status Register 4 */ +#define SP_FS_FREQ_MASK 0x0f +# define SP_FS_FREQ_44100HZ 0x00 +# define SP_FS_FREQ_48000HZ 0x02 +# define SP_FS_FREQ_32000HZ 0x03 +# define SP_FS_FREQ_88200HZ 0x08 +# define SP_FS_FREQ_96000HZ 0x0a +# define SP_FS_FREQ_176400HZ 0x0c +# define SP_FS_FREQ_192000HZ 0x0e + +/* + * Micellaneous Control Block + */ + +/* CHIP Control Register */ +#define SP_CHIP_CTRL_REG 0xe3 +#define SP_MAN_HDMI5V_DET BIT(3) +#define SP_PLLLOCK_CKDT_EN BIT(2) +#define SP_ANALOG_CKDT_EN BIT(1) +#define SP_DIGITAL_CKDT_EN BIT(0) + +/* Packet Receiving Status Register */ +#define SP_PACKET_RECEIVING_STATUS_REG 0xf3 +#define SP_AVI_RCVD BIT(5) +#define SP_VSI_RCVD BIT(1) + +/***************************************************************/ +/* Register definition of device address 0x80 */ +/***************************************************************/ + +/* HDCP BCAPS Shadow Register */ +#define SP_HDCP_BCAPS_SHADOW_REG 0x2a +#define SP_BCAPS_REPEATER BIT(5) + +/* HDCP Status Register */ +#define SP_RX_HDCP_STATUS_REG 0x3f +#define SP_AUTH_EN BIT(4) + +/* + * InfoFrame and Control Packet Registers + */ + +/* AVI InfoFrame packet checksum */ +#define SP_AVI_INFOFRAME_CHECKSUM 0xa3 + +/* AVI InfoFrame Registers */ +#define SP_AVI_INFOFRAME_DATA_BASE 0xa4 + +#define SP_AVI_COLOR_F_MASK 0x60 +#define SP_AVI_COLOR_F_SHIFT 5 + +/* Audio InfoFrame Registers */ +#define SP_AUD_INFOFRAME_DATA_BASE 0xc4 +#define SP_AUD_INFOFRAME_LAYOUT_MASK 0x0f + +/* MPEG/HDMI Vendor Specific InfoFrame Packet type code */ +#define SP_MPEG_VS_INFOFRAME_TYPE_REG 0xe0 + +/* MPEG/HDMI Vendor Specific InfoFrame Packet length */ +#define SP_MPEG_VS_INFOFRAME_LEN_REG 0xe2 + +/* MPEG/HDMI Vendor Specific InfoFrame Packet version number */ +#define SP_MPEG_VS_INFOFRAME_VER_REG 0xe1 + +/* MPEG/HDMI Vendor Specific InfoFrame Packet content */ +#define SP_MPEG_VS_INFOFRAME_DATA_BASE 0xe4 + +/* General Control Packet Register */ +#define SP_GENERAL_CTRL_PACKET_REG 0x9f +#define SP_CLEAR_AVMUTE BIT(4) +#define SP_SET_AVMUTE BIT(0) + +/***************************************************************/ +/* Register definition of device address 0x70 */ +/***************************************************************/ + +/* HDCP Status Register */ +#define SP_TX_HDCP_STATUS_REG 0x00 +#define SP_AUTH_FAIL BIT(5) +#define SP_AUTHEN_PASS BIT(1) + +/* HDCP Control Register 0 */ +#define SP_HDCP_CTRL0_REG 0x01 +#define SP_RX_REPEATER BIT(6) +#define SP_RE_AUTH BIT(5) +#define SP_SW_AUTH_OK BIT(4) +#define SP_HARD_AUTH_EN BIT(3) +#define SP_HDCP_ENC_EN BIT(2) +#define SP_BKSV_SRM_PASS BIT(1) +#define SP_KSVLIST_VLD BIT(0) +/* HDCP Function Enabled */ +#define SP_HDCP_FUNCTION_ENABLED (BIT(0) | BIT(1) | BIT(2) | BIT(3)) + +/* HDCP Receiver BSTATUS Register 0 */ +#define SP_HDCP_RX_BSTATUS0_REG 0x1b +/* HDCP Receiver BSTATUS Register 1 */ +#define SP_HDCP_RX_BSTATUS1_REG 0x1c + +/* HDCP Embedded "Blue Screen" Content Registers */ +#define SP_HDCP_VID0_BLUE_SCREEN_REG 0x2c +#define SP_HDCP_VID1_BLUE_SCREEN_REG 0x2d +#define SP_HDCP_VID2_BLUE_SCREEN_REG 0x2e + +/* HDCP Wait R0 Timing Register */ +#define SP_HDCP_WAIT_R0_TIME_REG 0x40 + +/* HDCP Link Integrity Check Timer Register */ +#define SP_HDCP_LINK_CHECK_TIMER_REG 0x41 + +/* HDCP Repeater Ready Wait Timer Register */ +#define SP_HDCP_RPTR_RDY_WAIT_TIME_REG 0x42 + +/* HDCP Auto Timer Register */ +#define SP_HDCP_AUTO_TIMER_REG 0x51 + +/* HDCP Key Status Register */ +#define SP_HDCP_KEY_STATUS_REG 0x5e + +/* HDCP Key Command Register */ +#define SP_HDCP_KEY_COMMAND_REG 0x5f +#define SP_DISABLE_SYNC_HDCP BIT(2) + +/* OTP Memory Key Protection Registers */ +#define SP_OTP_KEY_PROTECT1_REG 0x60 +#define SP_OTP_KEY_PROTECT2_REG 0x61 +#define SP_OTP_KEY_PROTECT3_REG 0x62 +#define SP_OTP_PSW1 0xa2 +#define SP_OTP_PSW2 0x7e +#define SP_OTP_PSW3 0xc6 + +/* DP System Control Registers */ +#define SP_DP_SYSTEM_CTRL_BASE (0x80 - 1) +/* Bits for DP System Control Register 2 */ +#define SP_CHA_STA BIT(2) +/* Bits for DP System Control Register 3 */ +#define SP_HPD_STATUS BIT(6) +#define SP_STRM_VALID BIT(2) +/* Bits for DP System Control Register 4 */ +#define SP_ENHANCED_MODE BIT(3) + +/* DP Video Control Register */ +#define SP_DP_VIDEO_CTRL_REG 0x84 +#define SP_COLOR_F_MASK 0x06 +#define SP_COLOR_F_SHIFT 1 +#define SP_BPC_MASK 0xe0 +#define SP_BPC_SHIFT 5 +# define SP_BPC_6BITS 0x00 +# define SP_BPC_8BITS 0x01 +# define SP_BPC_10BITS 0x02 +# define SP_BPC_12BITS 0x03 + +/* DP Audio Control Register */ +#define SP_DP_AUDIO_CTRL_REG 0x87 +#define SP_AUD_EN BIT(0) + +/* 10us Pulse Generate Timer Registers */ +#define SP_I2C_GEN_10US_TIMER0_REG 0x88 +#define SP_I2C_GEN_10US_TIMER1_REG 0x89 + +/* Packet Send Control Register */ +#define SP_PACKET_SEND_CTRL_REG 0x90 +#define SP_AUD_IF_UP BIT(7) +#define SP_AVI_IF_UD BIT(6) +#define SP_MPEG_IF_UD BIT(5) +#define SP_SPD_IF_UD BIT(4) +#define SP_AUD_IF_EN BIT(3) +#define SP_AVI_IF_EN BIT(2) +#define SP_MPEG_IF_EN BIT(1) +#define SP_SPD_IF_EN BIT(0) + +/* DP HDCP Control Register */ +#define SP_DP_HDCP_CTRL_REG 0x92 +#define SP_AUTO_EN BIT(7) +#define SP_AUTO_START BIT(5) +#define SP_LINK_POLLING BIT(1) + +/* DP Main Link Bandwidth Setting Register */ +#define SP_DP_MAIN_LINK_BW_SET_REG 0xa0 +#define SP_LINK_BW_SET_MASK 0x1f +#define SP_INITIAL_SLIM_M_AUD_SEL BIT(5) + +/* DP Training Pattern Set Register */ +#define SP_DP_TRAINING_PATTERN_SET_REG 0xa2 + +/* DP Lane 0 Link Training Control Register */ +#define SP_DP_LANE0_LT_CTRL_REG 0xa3 +#define SP_TX_SW_SET_MASK 0x1b +#define SP_MAX_PRE_REACH BIT(5) +#define SP_MAX_DRIVE_REACH BIT(4) +#define SP_PRE_EMP_LEVEL1 BIT(3) +#define SP_DRVIE_CURRENT_LEVEL1 BIT(0) + +/* DP Link Training Control Register */ +#define SP_DP_LT_CTRL_REG 0xa8 +#define SP_LT_ERROR_TYPE_MASK 0x70 +# define SP_LT_NO_ERROR 0x00 +# define SP_LT_AUX_WRITE_ERROR 0x01 +# define SP_LT_MAX_DRIVE_REACHED 0x02 +# define SP_LT_WRONG_LANE_COUNT_SET 0x03 +# define SP_LT_LOOP_SAME_5_TIME 0x04 +# define SP_LT_CR_FAIL_IN_EQ 0x05 +# define SP_LT_EQ_LOOP_5_TIME 0x06 +#define SP_LT_EN BIT(0) + +/* DP CEP Training Control Registers */ +#define SP_DP_CEP_TRAINING_CTRL0_REG 0xa9 +#define SP_DP_CEP_TRAINING_CTRL1_REG 0xaa + +/* DP Debug Register 1 */ +#define SP_DP_DEBUG1_REG 0xb0 +#define SP_DEBUG_PLL_LOCK BIT(4) +#define SP_POLLING_EN BIT(1) + +/* DP Polling Control Register */ +#define SP_DP_POLLING_CTRL_REG 0xb4 +#define SP_AUTO_POLLING_DISABLE BIT(0) + +/* DP Link Debug Control Register */ +#define SP_DP_LINK_DEBUG_CTRL_REG 0xb8 +#define SP_M_VID_DEBUG BIT(5) +#define SP_NEW_PRBS7 BIT(4) +#define SP_INSERT_ER BIT(1) +#define SP_PRBS31_EN BIT(0) + +/* AUX Misc control Register */ +#define SP_AUX_MISC_CTRL_REG 0xbf + +/* DP PLL control Register */ +#define SP_DP_PLL_CTRL_REG 0xc7 +#define SP_PLL_RST BIT(6) + +/* DP Analog Power Down Register */ +#define SP_DP_ANALOG_POWER_DOWN_REG 0xc8 +#define SP_CH0_PD BIT(0) + +/* DP Misc Control Register */ +#define SP_DP_MISC_CTRL_REG 0xcd +#define SP_EQ_TRAINING_LOOP BIT(6) + +/* DP Extra I2C Device Address Register */ +#define SP_DP_EXTRA_I2C_DEV_ADDR_REG 0xce +#define SP_I2C_STRETCH_DISABLE BIT(7) + +#define SP_I2C_EXTRA_ADDR 0x50 + +/* DP Downspread Control Register 1 */ +#define SP_DP_DOWNSPREAD_CTRL1_REG 0xd0 + +/* DP M Value Calculation Control Register */ +#define SP_DP_M_CALCULATION_CTRL_REG 0xd9 +#define SP_M_GEN_CLK_SEL BIT(0) + +/* AUX Channel Access Status Register */ +#define SP_AUX_CH_STATUS_REG 0xe0 +#define SP_AUX_STATUS 0x0f + +/* AUX Channel DEFER Control Register */ +#define SP_AUX_DEFER_CTRL_REG 0xe2 +#define SP_DEFER_CTRL_EN BIT(7) + +/* DP Buffer Data Count Register */ +#define SP_BUF_DATA_COUNT_REG 0xe4 +#define SP_BUF_DATA_COUNT_MASK 0x1f +#define SP_BUF_CLR BIT(7) + +/* DP AUX Channel Control Register 1 */ +#define SP_DP_AUX_CH_CTRL1_REG 0xe5 +#define SP_AUX_TX_COMM_MASK 0x0f +#define SP_AUX_LENGTH_MASK 0xf0 +#define SP_AUX_LENGTH_SHIFT 4 + +/* DP AUX CH Address Register 0 */ +#define SP_AUX_ADDR_7_0_REG 0xe6 + +/* DP AUX CH Address Register 1 */ +#define SP_AUX_ADDR_15_8_REG 0xe7 + +/* DP AUX CH Address Register 2 */ +#define SP_AUX_ADDR_19_16_REG 0xe8 +#define SP_AUX_ADDR_19_16_MASK 0x0f + +/* DP AUX Channel Control Register 2 */ +#define SP_DP_AUX_CH_CTRL2_REG 0xe9 +#define SP_AUX_SEL_RXCM BIT(6) +#define SP_AUX_CHSEL BIT(3) +#define SP_AUX_PN_INV BIT(2) +#define SP_ADDR_ONLY BIT(1) +#define SP_AUX_EN BIT(0) + +/* DP Video Stream Control InfoFrame Register */ +#define SP_DP_3D_VSC_CTRL_REG 0xea +#define SP_INFO_FRAME_VSC_EN BIT(0) + +/* DP Video Stream Data Byte 1 Register */ +#define SP_DP_VSC_DB1_REG 0xeb + +/* DP AUX Channel Control Register 3 */ +#define SP_DP_AUX_CH_CTRL3_REG 0xec +#define SP_WAIT_COUNTER_7_0_MASK 0xff + +/* DP AUX Channel Control Register 4 */ +#define SP_DP_AUX_CH_CTRL4_REG 0xed + +/* DP AUX Buffer Data Registers */ +#define SP_DP_BUF_DATA0_REG 0xf0 + +/***************************************************************/ +/* Register definition of device address 0x72 */ +/***************************************************************/ + +/* + * Core Register Definitions + */ + +/* Device ID Low Byte Register */ +#define SP_DEVICE_IDL_REG 0x02 + +/* Device ID High Byte Register */ +#define SP_DEVICE_IDH_REG 0x03 + +/* Device version register */ +#define SP_DEVICE_VERSION_REG 0x04 + +/* Power Down Control Register */ +#define SP_POWERDOWN_CTRL_REG 0x05 +#define SP_REGISTER_PD BIT(7) +#define SP_HDCP_PD BIT(5) +#define SP_AUDIO_PD BIT(4) +#define SP_VIDEO_PD BIT(3) +#define SP_LINK_PD BIT(2) +#define SP_TOTAL_PD BIT(1) + +/* Reset Control Register 1 */ +#define SP_RESET_CTRL1_REG 0x06 +#define SP_MISC_RST BIT(7) +#define SP_VIDCAP_RST BIT(6) +#define SP_VIDFIF_RST BIT(5) +#define SP_AUDFIF_RST BIT(4) +#define SP_AUDCAP_RST BIT(3) +#define SP_HDCP_RST BIT(2) +#define SP_SW_RST BIT(1) +#define SP_HW_RST BIT(0) + +/* Reset Control Register 2 */ +#define SP_RESET_CTRL2_REG 0x07 +#define SP_AUX_RST BIT(2) +#define SP_SERDES_FIFO_RST BIT(1) +#define SP_I2C_REG_RST BIT(0) + +/* Video Control Register 1 */ +#define SP_VID_CTRL1_REG 0x08 +#define SP_VIDEO_EN BIT(7) +#define SP_VIDEO_MUTE BIT(2) +#define SP_DE_GEN BIT(1) +#define SP_DEMUX BIT(0) + +/* Video Control Register 2 */ +#define SP_VID_CTRL2_REG 0x09 +#define SP_IN_COLOR_F_MASK 0x03 +#define SP_IN_YC_BIT_SEL BIT(2) +#define SP_IN_BPC_MASK 0x70 +#define SP_IN_BPC_SHIFT 4 +# define SP_IN_BPC_12BIT 0x03 +# define SP_IN_BPC_10BIT 0x02 +# define SP_IN_BPC_8BIT 0x01 +# define SP_IN_BPC_6BIT 0x00 +#define SP_IN_D_RANGE BIT(7) + +/* Video Control Register 3 */ +#define SP_VID_CTRL3_REG 0x0a +#define SP_HPD_OUT BIT(6) + +/* Video Control Register 5 */ +#define SP_VID_CTRL5_REG 0x0c +#define SP_CSC_STD_SEL BIT(7) +#define SP_XVYCC_RNG_LMT BIT(6) +#define SP_RANGE_Y2R BIT(5) +#define SP_CSPACE_Y2R BIT(4) +#define SP_RGB_RNG_LMT BIT(3) +#define SP_Y_RNG_LMT BIT(2) +#define SP_RANGE_R2Y BIT(1) +#define SP_CSPACE_R2Y BIT(0) + +/* Video Control Register 6 */ +#define SP_VID_CTRL6_REG 0x0d +#define SP_TEST_PATTERN_EN BIT(7) +#define SP_VIDEO_PROCESS_EN BIT(6) +#define SP_VID_US_MODE BIT(3) +#define SP_VID_DS_MODE BIT(2) +#define SP_UP_SAMPLE BIT(1) +#define SP_DOWN_SAMPLE BIT(0) + +/* Video Control Register 8 */ +#define SP_VID_CTRL8_REG 0x0f +#define SP_VID_VRES_TH BIT(0) + +/* Total Line Status Low Byte Register */ +#define SP_TOTAL_LINE_STAL_REG 0x24 + +/* Total Line Status High Byte Register */ +#define SP_TOTAL_LINE_STAH_REG 0x25 + +/* Active Line Status Low Byte Register */ +#define SP_ACT_LINE_STAL_REG 0x26 + +/* Active Line Status High Byte Register */ +#define SP_ACT_LINE_STAH_REG 0x27 + +/* Vertical Front Porch Status Register */ +#define SP_V_F_PORCH_STA_REG 0x28 + +/* Vertical SYNC Width Status Register */ +#define SP_V_SYNC_STA_REG 0x29 + +/* Vertical Back Porch Status Register */ +#define SP_V_B_PORCH_STA_REG 0x2a + +/* Total Pixel Status Low Byte Register */ +#define SP_TOTAL_PIXEL_STAL_REG 0x2b + +/* Total Pixel Status High Byte Register */ +#define SP_TOTAL_PIXEL_STAH_REG 0x2c + +/* Active Pixel Status Low Byte Register */ +#define SP_ACT_PIXEL_STAL_REG 0x2d + +/* Active Pixel Status High Byte Register */ +#define SP_ACT_PIXEL_STAH_REG 0x2e + +/* Horizontal Front Porch Status Low Byte Register */ +#define SP_H_F_PORCH_STAL_REG 0x2f + +/* Horizontal Front Porch Statys High Byte Register */ +#define SP_H_F_PORCH_STAH_REG 0x30 + +/* Horizontal SYNC Width Status Low Byte Register */ +#define SP_H_SYNC_STAL_REG 0x31 + +/* Horizontal SYNC Width Status High Byte Register */ +#define SP_H_SYNC_STAH_REG 0x32 + +/* Horizontal Back Porch Status Low Byte Register */ +#define SP_H_B_PORCH_STAL_REG 0x33 + +/* Horizontal Back Porch Status High Byte Register */ +#define SP_H_B_PORCH_STAH_REG 0x34 + +/* InfoFrame AVI Packet DB1 Register */ +#define SP_INFOFRAME_AVI_DB1_REG 0x70 + +/* Bit Control Specific Register */ +#define SP_BIT_CTRL_SPECIFIC_REG 0x80 +#define SP_BIT_CTRL_SELECT_SHIFT 1 +#define SP_ENABLE_BIT_CTRL BIT(0) + +/* InfoFrame Audio Packet DB1 Register */ +#define SP_INFOFRAME_AUD_DB1_REG 0x83 + +/* InfoFrame MPEG Packet DB1 Register */ +#define SP_INFOFRAME_MPEG_DB1_REG 0xb0 + +/* Audio Channel Status Registers */ +#define SP_AUD_CH_STATUS_BASE 0xd0 + +/* Audio Channel Num Register 5 */ +#define SP_I2S_CHANNEL_NUM_MASK 0xe0 +# define SP_I2S_CH_NUM_1 (0x00 << 5) +# define SP_I2S_CH_NUM_2 (0x01 << 5) +# define SP_I2S_CH_NUM_3 (0x02 << 5) +# define SP_I2S_CH_NUM_4 (0x03 << 5) +# define SP_I2S_CH_NUM_5 (0x04 << 5) +# define SP_I2S_CH_NUM_6 (0x05 << 5) +# define SP_I2S_CH_NUM_7 (0x06 << 5) +# define SP_I2S_CH_NUM_8 (0x07 << 5) +#define SP_EXT_VUCP BIT(2) +#define SP_VBIT BIT(1) +#define SP_AUDIO_LAYOUT BIT(0) + +/* Analog Debug Register 2 */ +#define SP_ANALOG_DEBUG2_REG 0xdd +#define SP_FORCE_SW_OFF_BYPASS 0x20 +#define SP_XTAL_FRQ 0x1c +# define SP_XTAL_FRQ_19M2 (0x00 << 2) +# define SP_XTAL_FRQ_24M (0x01 << 2) +# define SP_XTAL_FRQ_25M (0x02 << 2) +# define SP_XTAL_FRQ_26M (0x03 << 2) +# define SP_XTAL_FRQ_27M (0x04 << 2) +# define SP_XTAL_FRQ_38M4 (0x05 << 2) +# define SP_XTAL_FRQ_52M (0x06 << 2) +#define SP_POWERON_TIME_1P5MS 0x03 + +/* Analog Control 0 Register */ +#define SP_ANALOG_CTRL0_REG 0xe1 + +/* Common Interrupt Status Register 1 */ +#define SP_COMMON_INT_STATUS_BASE (0xf1 - 1) +#define SP_PLL_LOCK_CHG 0x40 + +/* Common Interrupt Status Register 2 */ +#define SP_COMMON_INT_STATUS2 0xf2 +#define SP_HDCP_AUTH_CHG BIT(1) +#define SP_HDCP_AUTH_DONE BIT(0) + +#define SP_HDCP_LINK_CHECK_FAIL BIT(0) + +/* Common Interrupt Status Register 4 */ +#define SP_COMMON_INT_STATUS4_REG 0xf4 +#define SP_HPD_IRQ BIT(6) +#define SP_HPD_ESYNC_ERR BIT(4) +#define SP_HPD_CHG BIT(2) +#define SP_HPD_LOST BIT(1) +#define SP_HPD_PLUG BIT(0) + +/* DP Interrupt Status Register */ +#define SP_DP_INT_STATUS1_REG 0xf7 +#define SP_TRAINING_FINISH BIT(5) +#define SP_POLLING_ERR BIT(4) + +/* Common Interrupt Mask Register */ +#define SP_COMMON_INT_MASK_BASE (0xf8 - 1) + +#define SP_COMMON_INT_MASK4_REG 0xfb + +/* DP Interrupts Mask Register */ +#define SP_DP_INT_MASK1_REG 0xfe + +/* Interrupt Control Register */ +#define SP_INT_CTRL_REG 0xff + +/***************************************************************/ +/* Register definition of device address 0x7a */ +/***************************************************************/ + +/* DP TX Link Training Control Register */ +#define SP_DP_TX_LT_CTRL0_REG 0x30 + +/* PD 1.2 Lint Training 80bit Pattern Register */ +#define SP_DP_LT_80BIT_PATTERN0_REG 0x80 +#define SP_DP_LT_80BIT_PATTERN_REG_NUM 10 + +/* Audio Interface Control Register 0 */ +#define SP_AUD_INTERFACE_CTRL0_REG 0x5f +#define SP_AUD_INTERFACE_DISABLE 0x80 + +/* Audio Interface Control Register 2 */ +#define SP_AUD_INTERFACE_CTRL2_REG 0x60 +#define SP_M_AUD_ADJUST_ST 0x04 + +/* Audio Interface Control Register 3 */ +#define SP_AUD_INTERFACE_CTRL3_REG 0x62 + +/* Audio Interface Control Register 4 */ +#define SP_AUD_INTERFACE_CTRL4_REG 0x67 + +/* Audio Interface Control Register 5 */ +#define SP_AUD_INTERFACE_CTRL5_REG 0x68 + +/* Audio Interface Control Register 6 */ +#define SP_AUD_INTERFACE_CTRL6_REG 0x69 + +/* Firmware Version Register */ +#define SP_FW_VER_REG 0xb7 + +#endif