@@ -25,3 +25,11 @@ config ROCKCHIP_DW_HDMI
for the Synopsys DesignWare HDMI driver. If you want to
enable HDMI on RK3288 based SoC, you should selet this
option.
+
+config ROCKCHIP_INNO_HDMI
+ tristate "Rockchip specific extensions for Innosilicon HDMI"
+ depends on DRM_ROCKCHIP
+ help
+ This selects support for Rockchip SoC specific extensions
+ for the Innosilicon HDMI driver. If you want to enable
+ HDMI on RK3036 based SoC, you should selet this option.
@@ -6,5 +6,6 @@ rockchipdrm-y := rockchip_drm_drv.o rockchip_drm_fb.o rockchip_drm_fbdev.o \
rockchip_drm_gem.o
obj-$(CONFIG_ROCKCHIP_DW_HDMI) += dw_hdmi-rockchip.o
+obj-$(CONFIG_ROCKCHIP_INNO_HDMI) += inno_hdmi.o
obj-$(CONFIG_DRM_ROCKCHIP) += rockchipdrm.o rockchip_drm_vop.o
new file mode 100644
@@ -0,0 +1,1008 @@
+/*
+ * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+ * Zheng Yang <zhengyang@rock-chips.com>
+ * Yakir Yang <ykk@rock-chips.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/irq.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/hdmi.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/of_device.h>
+
+#include <drm/drm_of.h>
+#include <drm/drmP.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_edid.h>
+#include <drm/drm_encoder_slave.h>
+
+#include "rockchip_drm_drv.h"
+#include "rockchip_drm_vop.h"
+
+#include "inno_hdmi.h"
+
+#define to_inno_hdmi(x) container_of(x, struct inno_hdmi, x)
+
+struct hdmi_data_info {
+ int vic;
+ bool sink_is_hdmi;
+ bool sink_has_audio;
+ unsigned int enc_in_format;
+ unsigned int enc_out_format;
+ unsigned int colorimetry;
+};
+
+struct inno_hdmi_i2c {
+ struct i2c_adapter adap;
+
+ u8 ddc_addr;
+ u8 segment_addr;
+
+ struct mutex lock;
+ struct completion cmp;
+};
+
+struct inno_hdmi {
+ struct device *dev;
+ struct drm_device *drm_dev;
+
+ int irq;
+ struct clk *pclk;
+ void __iomem *regs;
+
+ struct drm_connector connector;
+ struct drm_encoder encoder;
+
+ struct inno_hdmi_i2c *i2c;
+ struct i2c_adapter *ddc;
+
+ int dpms_mode;
+ unsigned int tmds_rate;
+
+ struct hdmi_data_info hdmi_data;
+ struct drm_display_mode previous_mode;
+};
+
+enum {
+ CSC_ITU601_16_235_TO_RGB_0_255_8BIT,
+ CSC_ITU601_0_255_TO_RGB_0_255_8BIT,
+ CSC_ITU709_16_235_TO_RGB_0_255_8BIT,
+ CSC_RGB_0_255_TO_ITU601_16_235_8BIT,
+ CSC_RGB_0_255_TO_ITU709_16_235_8BIT,
+ CSC_RGB_0_255_TO_RGB_16_235_8BIT,
+};
+
+static const char coeff_csc[][24] = {
+ /*
+ * YUV2RGB:601 SD mode(Y[16:235], UV[16:240], RGB[0:255]):
+ * R = 1.164*Y + 1.596*V - 204
+ * G = 1.164*Y - 0.391*U - 0.813*V + 154
+ * B = 1.164*Y + 2.018*U - 258
+ */
+ {
+ 0x04, 0xa7, 0x00, 0x00, 0x06, 0x62, 0x02, 0xcc,
+ 0x04, 0xa7, 0x11, 0x90, 0x13, 0x40, 0x00, 0x9a,
+ 0x04, 0xa7, 0x08, 0x12, 0x00, 0x00, 0x03, 0x02
+ },
+ /*
+ * YUV2RGB:601 SD mode(YUV[0:255],RGB[0:255]):
+ * R = Y + 1.402*V - 248
+ * G = Y - 0.344*U - 0.714*V + 135
+ * B = Y + 1.772*U - 227
+ */
+ {
+ 0x04, 0x00, 0x00, 0x00, 0x05, 0x9b, 0x02, 0xf8,
+ 0x04, 0x00, 0x11, 0x60, 0x12, 0xdb, 0x00, 0x87,
+ 0x04, 0x00, 0x07, 0x16, 0x00, 0x00, 0x02, 0xe3
+ },
+ /*
+ * YUV2RGB:709 HD mode(Y[16:235],UV[16:240],RGB[0:255]):
+ * R = 1.164*Y + 1.793*V - 248
+ * G = 1.164*Y - 0.213*U - 0.534*V + 77
+ * B = 1.164*Y + 2.115*U - 289
+ */
+ {
+ 0x04, 0xa7, 0x00, 0x00, 0x07, 0x2c, 0x02, 0xf8,
+ 0x04, 0xa7, 0x10, 0xda, 0x12, 0x22, 0x00, 0x4d,
+ 0x04, 0xa7, 0x08, 0x74, 0x00, 0x00, 0x03, 0x21
+ },
+
+ /*
+ * RGB2YUV:601 SD mode:
+ * Cb = -0.291G - 0.148R + 0.439B + 128
+ * Y = 0.504G + 0.257R + 0.098B + 16
+ * Cr = -0.368G + 0.439R - 0.071B + 128
+ */
+ {
+ 0x11, 0x5f, 0x01, 0x82, 0x10, 0x23, 0x00, 0x80,
+ 0x02, 0x1c, 0x00, 0xa1, 0x00, 0x36, 0x00, 0x1e,
+ 0x11, 0x29, 0x10, 0x59, 0x01, 0x82, 0x00, 0x80
+ },
+ /*
+ * RGB2YUV:709 HD mode:
+ * Cb = - 0.338G - 0.101R + 0.439B + 128
+ * Y = 0.614G + 0.183R + 0.062B + 16
+ * Cr = - 0.399G + 0.439R - 0.040B + 128
+ */
+ {
+ 0x11, 0x98, 0x01, 0xc1, 0x10, 0x28, 0x00, 0x80,
+ 0x02, 0x74, 0x00, 0xbb, 0x00, 0x3f, 0x00, 0x10,
+ 0x11, 0x5a, 0x10, 0x67, 0x01, 0xc1, 0x00, 0x80
+ },
+ /*
+ * RGB[0:255]2RGB[16:235]:
+ * R' = R x (235-16)/255 + 16;
+ * G' = G x (235-16)/255 + 16;
+ * B' = B x (235-16)/255 + 16;
+ */
+ {
+ 0x00, 0x00, 0x03, 0x6F, 0x00, 0x00, 0x00, 0x10,
+ 0x03, 0x6F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10,
+ 0x00, 0x00, 0x00, 0x00, 0x03, 0x6F, 0x00, 0x10
+ },
+};
+
+static inline u8 hdmi_readb(struct inno_hdmi *hdmi, u16 offset)
+{
+ return readl_relaxed(hdmi->regs + (offset) * 0x04);
+}
+
+static inline void hdmi_writeb(struct inno_hdmi *hdmi, u16 offset, u32 val)
+{
+ writel_relaxed(val, hdmi->regs + (offset) * 0x04);
+}
+
+static inline void hdmi_modb(struct inno_hdmi *hdmi, u16 offset,
+ u32 msk, u32 val)
+{
+ u8 temp = hdmi_readb(hdmi, offset) & ~msk;
+
+ temp |= val & msk;
+ hdmi_writeb(hdmi, offset, temp);
+}
+
+static void inno_hdmi_i2c_init(struct inno_hdmi *hdmi)
+{
+ int ddc_bus_freq;
+
+ ddc_bus_freq = (hdmi->tmds_rate >> 2) / HDMI_SCL_RATE;
+
+ hdmi_writeb(hdmi, DDC_BUS_FREQ_L, ddc_bus_freq & 0xFF);
+ hdmi_writeb(hdmi, DDC_BUS_FREQ_H, (ddc_bus_freq >> 8) & 0xFF);
+
+ /* Clear the EDID interrupt flag and mute the interrupt */
+ hdmi_writeb(hdmi, HDMI_INTERRUPT_MASK1, 0);
+ hdmi_writeb(hdmi, HDMI_INTERRUPT_STATUS1, m_INT_EDID_READY);
+}
+
+static void inno_hdmi_sys_power(struct inno_hdmi *hdmi, bool enable)
+{
+ if (enable)
+ hdmi_modb(hdmi, HDMI_SYS_CTRL, m_POWER, v_PWR_ON);
+ else
+ hdmi_modb(hdmi, HDMI_SYS_CTRL, m_POWER, v_PWR_OFF);
+}
+
+static void inno_hdmi_set_pwr_mode(struct inno_hdmi *hdmi, int mode)
+{
+ switch (mode) {
+ case NORMAL:
+ inno_hdmi_sys_power(hdmi, false);
+
+ hdmi_writeb(hdmi, HDMI_PHY_PRE_EMPHASIS, 0x6f);
+ hdmi_writeb(hdmi, HDMI_PHY_DRIVER, 0xbb);
+
+ hdmi_writeb(hdmi, HDMI_PHY_SYS_CTL, 0x15);
+ hdmi_writeb(hdmi, HDMI_PHY_SYS_CTL, 0x14);
+ hdmi_writeb(hdmi, HDMI_PHY_SYS_CTL, 0x10);
+ hdmi_writeb(hdmi, HDMI_PHY_CHG_PWR, 0x0f);
+ hdmi_writeb(hdmi, HDMI_PHY_SYNC, 0x00);
+ hdmi_writeb(hdmi, HDMI_PHY_SYNC, 0x01);
+
+ inno_hdmi_sys_power(hdmi, true);
+
+ break;
+
+ case LOWER_PWR:
+ inno_hdmi_sys_power(hdmi, false);
+
+ hdmi_writeb(hdmi, HDMI_PHY_DRIVER, 0x00);
+ hdmi_writeb(hdmi, HDMI_PHY_PRE_EMPHASIS, 0x00);
+ hdmi_writeb(hdmi, HDMI_PHY_CHG_PWR, 0x00);
+ hdmi_writeb(hdmi, HDMI_PHY_SYS_CTL, 0x17);
+
+ break;
+
+ default:
+ dev_err(hdmi->dev, "Unknown power mode %d\n", mode);
+ }
+}
+
+static void inno_hdmi_reset(struct inno_hdmi *hdmi)
+{
+ u32 val;
+ u32 msk;
+
+ hdmi_modb(hdmi, HDMI_SYS_CTRL, m_RST_DIGITAL, v_NOT_RST_DIGITAL);
+ udelay(100);
+
+ hdmi_modb(hdmi, HDMI_SYS_CTRL, m_RST_ANALOG, v_NOT_RST_ANALOG);
+ udelay(100);
+
+ msk = m_REG_CLK_INV | m_REG_CLK_SOURCE | m_POWER | m_INT_POL;
+ val = v_REG_CLK_INV | v_REG_CLK_SOURCE_SYS | v_PWR_ON | v_INT_POL_HIGH;
+ hdmi_modb(hdmi, HDMI_SYS_CTRL, msk, val);
+
+ inno_hdmi_set_pwr_mode(hdmi, NORMAL);
+}
+
+static int inno_hdmi_config_video_avi(struct inno_hdmi *hdmi)
+{
+ char info[HDMI_SIZE_AVI_INFOFRAME] = {0};
+ int avi_color_mode;
+ int i;
+
+ hdmi_writeb(hdmi, HDMI_CONTROL_PACKET_BUF_INDEX, INFOFRAME_AVI);
+
+ info[0] = 0x82;
+ info[1] = 0x02;
+ info[2] = 0x0D;
+ info[3] = info[0] + info[1] + info[2];
+
+ if (hdmi->hdmi_data.enc_out_format == HDMI_COLORSPACE_RGB)
+ avi_color_mode = AVI_COLOR_MODE_RGB;
+ else if (hdmi->hdmi_data.enc_out_format == HDMI_COLORSPACE_YUV444)
+ avi_color_mode = AVI_COLOR_MODE_YCBCR444;
+ else if (hdmi->hdmi_data.enc_out_format == HDMI_COLORSPACE_YUV422)
+ avi_color_mode = AVI_COLOR_MODE_YCBCR422;
+ else
+ avi_color_mode = AVI_COLOR_MODE_RGB;
+
+ info[4] = (avi_color_mode << 5);
+ info[5] = (AVI_COLORIMETRY_NO_DATA << 6) |
+ (AVI_CODED_FRAME_ASPECT_NO_DATA << 4) |
+ ACTIVE_ASPECT_RATE_SAME_AS_CODED_FRAME;
+
+ info[6] = 0;
+ info[7] = hdmi->hdmi_data.vic;
+
+ if (hdmi->hdmi_data.vic == 6 || hdmi->hdmi_data.vic == 7 ||
+ hdmi->hdmi_data.vic == 21 || hdmi->hdmi_data.vic == 22)
+ info[8] = 1;
+ else
+ info[8] = 0;
+
+ /* Calculate avi info frame checKsum */
+ for (i = 4; i < HDMI_SIZE_AVI_INFOFRAME; i++)
+ info[3] += info[i];
+ info[3] = 0x100 - info[3];
+
+ for (i = 0; i < HDMI_SIZE_AVI_INFOFRAME; i++)
+ hdmi_writeb(hdmi, HDMI_CONTROL_PACKET_ADDR + i, info[i]);
+
+ return 0;
+}
+
+static int inno_hdmi_config_video_vsi(struct inno_hdmi *hdmi)
+{
+ char info[HDMI_SIZE_VSI_INFOFRAME] = {0};
+ int i;
+
+ hdmi_modb(hdmi, HDMI_PACKET_SEND_AUTO, m_PACKET_VSI_EN,
+ v_PACKET_VSI_EN(0));
+
+ hdmi_writeb(hdmi, HDMI_CONTROL_PACKET_BUF_INDEX, INFOFRAME_VSI);
+
+ /* Header Bytes */
+ info[0] = 0x81;
+ info[1] = 0x01;
+
+ /* PB1 - PB3 contain the 24bit IEEE Registration Identifier */
+ info[4] = 0x03;
+ info[5] = 0x0c;
+ info[6] = 0x00;
+
+ /* PB4 - HDMI_Video_Format into bits 7:5 */
+ info[7] = 0;
+
+ /*
+ * PB5 - Depending on the video format, this byte will contain
+ * either the HDMI_VIC code in buts 7:0, OR the 3D_Structure in
+ * bits 7:4.
+ */
+ info[2] = 0x06 - 2;
+ info[8] = 0;
+ info[9] = 0;
+
+ info[3] = info[0] + info[1] + info[2];
+
+ /* Calculate info frame checKsum */
+ for (i = 4; i < HDMI_SIZE_VSI_INFOFRAME; i++)
+ info[3] += info[i];
+ info[3] = 0x100 - info[3];
+
+ for (i = 0; i < HDMI_SIZE_VSI_INFOFRAME; i++)
+ hdmi_writeb(hdmi, HDMI_CONTROL_PACKET_ADDR + i, info[i]);
+
+ hdmi_modb(hdmi, HDMI_PACKET_SEND_AUTO, m_PACKET_VSI_EN,
+ v_PACKET_VSI_EN(1));
+
+ return 0;
+}
+
+static int inno_hdmi_config_video_csc(struct inno_hdmi *hdmi)
+{
+ struct hdmi_data_info *data = &hdmi->hdmi_data;
+ int c0_c2_change = 0;
+ int csc_enable = 0;
+ int csc_mode = 0;
+ int auto_csc = 0;
+ int value;
+ int i;
+
+ /* Input video mode is SDR RGB24bit, data enable signal from external */
+ hdmi_writeb(hdmi, HDMI_VIDEO_CONTRL1, v_DE_EXTERNAL |
+ v_VIDEO_INPUT_FORMAT(VIDEO_INPUT_SDR_RGB444));
+
+ /* Input color hardcode to RGB, and output color hardcode to RGB888 */
+ value = v_VIDEO_INPUT_BITS(VIDEO_INPUT_8BITS) |
+ v_VIDEO_OUTPUT_COLOR(0) |
+ v_VIDEO_INPUT_CSP(0);
+ hdmi_writeb(hdmi, HDMI_VIDEO_CONTRL2, value);
+
+ if (data->enc_out_format == data->enc_out_format) {
+ if ((data->enc_in_format == HDMI_COLORSPACE_RGB) ||
+ (data->enc_in_format >= HDMI_COLORSPACE_YUV444)) {
+ value = v_SOF_DISABLE | v_COLOR_DEPTH_NOT_INDICATED(1);
+ hdmi_writeb(hdmi, HDMI_VIDEO_CONTRL3, value);
+
+ hdmi_modb(hdmi, HDMI_VIDEO_CONTRL,
+ m_VIDEO_AUTO_CSC | m_VIDEO_C0_C2_SWAP,
+ v_VIDEO_AUTO_CSC(AUTO_CSC_DISABLE) |
+ v_VIDEO_C0_C2_SWAP(C0_C2_CHANGE_DISABLE));
+ return 0;
+ }
+ }
+
+ if (data->colorimetry == HDMI_COLORIMETRY_ITU_601) {
+ if ((data->enc_in_format == HDMI_COLORSPACE_RGB) &&
+ (data->enc_out_format == HDMI_COLORSPACE_YUV444)) {
+ csc_mode = CSC_RGB_0_255_TO_ITU601_16_235_8BIT;
+ auto_csc = AUTO_CSC_DISABLE;
+ c0_c2_change = C0_C2_CHANGE_DISABLE;
+ csc_enable = v_CSC_ENABLE;
+ } else if ((data->enc_in_format == HDMI_COLORSPACE_YUV444) &&
+ (data->enc_out_format == HDMI_COLORSPACE_RGB)) {
+ csc_mode = CSC_ITU601_16_235_TO_RGB_0_255_8BIT;
+ auto_csc = AUTO_CSC_ENABLE;
+ c0_c2_change = C0_C2_CHANGE_DISABLE;
+ csc_enable = v_CSC_DISABLE;
+ }
+ } else {
+ if ((data->enc_in_format == HDMI_COLORSPACE_RGB) &&
+ (data->enc_out_format == HDMI_COLORSPACE_YUV444)) {
+ csc_mode = CSC_RGB_0_255_TO_ITU709_16_235_8BIT;
+ auto_csc = AUTO_CSC_DISABLE;
+ c0_c2_change = C0_C2_CHANGE_DISABLE;
+ csc_enable = v_CSC_ENABLE;
+ } else if ((data->enc_in_format == HDMI_COLORSPACE_YUV444) &&
+ (data->enc_out_format == HDMI_COLORSPACE_RGB)) {
+ csc_mode = CSC_ITU709_16_235_TO_RGB_0_255_8BIT;
+ auto_csc = AUTO_CSC_ENABLE;
+ c0_c2_change = C0_C2_CHANGE_DISABLE;
+ csc_enable = v_CSC_DISABLE;
+ }
+ }
+
+ for (i = 0; i < 24; i++)
+ hdmi_writeb(hdmi, HDMI_VIDEO_CSC_COEF + i,
+ coeff_csc[csc_mode][i]);
+
+ value = v_SOF_DISABLE | csc_enable | v_COLOR_DEPTH_NOT_INDICATED(1);
+ hdmi_writeb(hdmi, HDMI_VIDEO_CONTRL3, value);
+ hdmi_modb(hdmi, HDMI_VIDEO_CONTRL, m_VIDEO_AUTO_CSC |
+ m_VIDEO_C0_C2_SWAP, v_VIDEO_AUTO_CSC(auto_csc) |
+ v_VIDEO_C0_C2_SWAP(c0_c2_change));
+
+ return 0;
+}
+
+static int inno_hdmi_config_video_timing(struct inno_hdmi *hdmi,
+ struct drm_display_mode *mode)
+{
+ int value;
+
+ /* Set detail external video timing polarity and interlace mode */
+ value = v_EXTERANL_VIDEO(1);
+ value |= mode->flags & DRM_MODE_FLAG_PHSYNC ?
+ v_HSYNC_POLARITY(1) : v_HSYNC_POLARITY(0);
+ value |= mode->flags & DRM_MODE_FLAG_PVSYNC ?
+ v_VSYNC_POLARITY(1) : v_VSYNC_POLARITY(0);
+ value |= mode->flags & DRM_MODE_FLAG_INTERLACE ?
+ v_INETLACE(1) : v_INETLACE(0);
+ hdmi_writeb(hdmi, HDMI_VIDEO_TIMING_CTL, value);
+
+ /* Set detail external video timing */
+ value = mode->htotal;
+ hdmi_writeb(hdmi, HDMI_VIDEO_EXT_HTOTAL_L, value & 0xFF);
+ hdmi_writeb(hdmi, HDMI_VIDEO_EXT_HTOTAL_H, (value >> 8) & 0xFF);
+
+ value = mode->htotal - mode->hdisplay;
+ hdmi_writeb(hdmi, HDMI_VIDEO_EXT_HBLANK_L, value & 0xFF);
+ hdmi_writeb(hdmi, HDMI_VIDEO_EXT_HBLANK_H, (value >> 8) & 0xFF);
+
+ value = mode->hsync_start - mode->hdisplay;
+ hdmi_writeb(hdmi, HDMI_VIDEO_EXT_HDELAY_L, value & 0xFF);
+ hdmi_writeb(hdmi, HDMI_VIDEO_EXT_HDELAY_H, (value >> 8) & 0xFF);
+
+ value = mode->hsync_end - mode->hsync_start;
+ hdmi_writeb(hdmi, HDMI_VIDEO_EXT_HDURATION_L, value & 0xFF);
+ hdmi_writeb(hdmi, HDMI_VIDEO_EXT_HDURATION_H, (value >> 8) & 0xFF);
+
+ value = mode->vtotal;
+ hdmi_writeb(hdmi, HDMI_VIDEO_EXT_VTOTAL_L, value & 0xFF);
+ hdmi_writeb(hdmi, HDMI_VIDEO_EXT_VTOTAL_H, (value >> 8) & 0xFF);
+
+ value = mode->vtotal - mode->vdisplay;
+ hdmi_writeb(hdmi, HDMI_VIDEO_EXT_VBLANK, value & 0xFF);
+
+ value = mode->vsync_start - mode->vdisplay;
+ hdmi_writeb(hdmi, HDMI_VIDEO_EXT_VDELAY, value & 0xFF);
+
+ value = mode->vsync_end - mode->vsync_start;
+ hdmi_writeb(hdmi, HDMI_VIDEO_EXT_VDURATION, value & 0xFF);
+
+ hdmi_writeb(hdmi, HDMI_PHY_PRE_DIV_RATIO, 0x1e);
+ hdmi_writeb(hdmi, HDMI_PHY_FEEDBACK_DIV_RATIO_LOW, 0x2c);
+ hdmi_writeb(hdmi, HDMI_PHY_FEEDBACK_DIV_RATIO_HIGH, 0x01);
+
+ return 0;
+}
+
+static int inno_hdmi_setup(struct inno_hdmi *hdmi,
+ struct drm_display_mode *mode)
+{
+ int value;
+
+ hdmi->hdmi_data.vic = drm_match_cea_mode(mode);
+
+ hdmi->hdmi_data.enc_in_format = HDMI_COLORSPACE_RGB;
+ hdmi->hdmi_data.enc_out_format = HDMI_COLORSPACE_RGB;
+
+ if ((hdmi->hdmi_data.vic == 6) || (hdmi->hdmi_data.vic == 7) ||
+ (hdmi->hdmi_data.vic == 21) || (hdmi->hdmi_data.vic == 22) ||
+ (hdmi->hdmi_data.vic == 2) || (hdmi->hdmi_data.vic == 3) ||
+ (hdmi->hdmi_data.vic == 17) || (hdmi->hdmi_data.vic == 18))
+ hdmi->hdmi_data.colorimetry = HDMI_COLORIMETRY_ITU_601;
+ else
+ hdmi->hdmi_data.colorimetry = HDMI_COLORIMETRY_ITU_709;
+
+ /* Mute video and audio output */
+ hdmi_modb(hdmi, HDMI_AV_MUTE, m_AUDIO_MUTE | m_VIDEO_BLACK,
+ v_AUDIO_MUTE(1) | v_VIDEO_MUTE(1));
+
+ /* Set HDMI Mode */
+ hdmi_writeb(hdmi, HDMI_HDCP_CTRL,
+ v_HDMI_DVI(hdmi->hdmi_data.sink_is_hdmi));
+
+ inno_hdmi_config_video_timing(hdmi, mode);
+
+ inno_hdmi_config_video_csc(hdmi);
+
+ if (hdmi->hdmi_data.sink_is_hdmi) {
+ inno_hdmi_config_video_avi(hdmi);
+ inno_hdmi_config_video_vsi(hdmi);
+ }
+
+ /*
+ * When IP controller have configured to an accurate video
+ * timing, then the TMDS clock source would be switched to
+ * DCLK_LCDC, so we need to init the TMDS rate to mode pixel
+ * clock rate, and reconfigure the DDC clock.
+ */
+ hdmi->tmds_rate = mode->clock * 1000;
+ inno_hdmi_i2c_init(hdmi);
+
+ /* Unmute video and audio output */
+ hdmi_modb(hdmi, HDMI_AV_MUTE, m_AUDIO_MUTE | m_VIDEO_BLACK,
+ v_AUDIO_MUTE(0) | v_VIDEO_MUTE(0));
+
+ return 0;
+}
+
+static void inno_hdmi_encoder_mode_set(struct drm_encoder *encoder,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adj_mode)
+{
+ struct inno_hdmi *hdmi = to_inno_hdmi(encoder);
+
+ inno_hdmi_setup(hdmi, adj_mode);
+
+ /* Store the display mode for plugin/DKMS poweron events */
+ memcpy(&hdmi->previous_mode, adj_mode, sizeof(hdmi->previous_mode));
+}
+
+static void inno_hdmi_encoder_dpms(struct drm_encoder *encoder, int mode)
+{
+ struct inno_hdmi *hdmi = to_inno_hdmi(encoder);
+
+ if (hdmi->dpms_mode == mode)
+ return;
+
+ switch (mode) {
+ case DRM_MODE_DPMS_ON:
+ inno_hdmi_set_pwr_mode(hdmi, NORMAL);
+ break;
+ case DRM_MODE_DPMS_STANDBY:
+ case DRM_MODE_DPMS_SUSPEND:
+ case DRM_MODE_DPMS_OFF:
+ inno_hdmi_set_pwr_mode(hdmi, LOWER_PWR);
+ break;
+ default:
+ break;
+ }
+
+ hdmi->dpms_mode = mode;
+}
+
+static void inno_hdmi_encoder_commit(struct drm_encoder *encoder)
+{
+}
+
+static void inno_hdmi_encoder_prepare(struct drm_encoder *encoder)
+{
+ rockchip_drm_crtc_mode_config(encoder->crtc, DRM_MODE_CONNECTOR_HDMIA,
+ ROCKCHIP_OUT_MODE_P888);
+}
+
+static bool inno_hdmi_encoder_mode_fixup(struct drm_encoder *encoder,
+ const struct drm_display_mode *mode,
+ struct drm_display_mode *adj_mode)
+{
+ return true;
+}
+
+static struct drm_encoder_helper_funcs inno_hdmi_encoder_helper_funcs = {
+ .dpms = inno_hdmi_encoder_dpms,
+ .mode_fixup = inno_hdmi_encoder_mode_fixup,
+ .mode_set = inno_hdmi_encoder_mode_set,
+ .prepare = inno_hdmi_encoder_prepare,
+ .commit = inno_hdmi_encoder_commit,
+};
+
+static struct drm_encoder_funcs inno_hdmi_encoder_funcs = {
+ .destroy = drm_encoder_cleanup,
+};
+
+static enum drm_connector_status
+inno_hdmi_connector_detect(struct drm_connector *connector, bool force)
+{
+ struct inno_hdmi *hdmi = to_inno_hdmi(connector);
+
+ return (hdmi_readb(hdmi, HDMI_STATUS) & m_HOTPLUG) ?
+ connector_status_connected : connector_status_disconnected;
+}
+
+static int inno_hdmi_connector_get_modes(struct drm_connector *connector)
+{
+ struct inno_hdmi *hdmi = to_inno_hdmi(connector);
+ struct edid *edid;
+ int ret;
+
+ if (!hdmi->ddc)
+ return 0;
+
+ edid = drm_get_edid(connector, hdmi->ddc);
+ if (edid) {
+ hdmi->hdmi_data.sink_is_hdmi = drm_detect_hdmi_monitor(edid);
+ hdmi->hdmi_data.sink_has_audio = drm_detect_monitor_audio(edid);
+ drm_mode_connector_update_edid_property(connector, edid);
+ ret = drm_add_edid_modes(connector, edid);
+ kfree(edid);
+ }
+
+ return ret;
+}
+
+static enum drm_mode_status
+inno_hdmi_connector_mode_valid(struct drm_connector *connector,
+ struct drm_display_mode *mode)
+{
+ return MODE_OK;
+}
+
+static struct drm_encoder *
+inno_hdmi_connector_best_encoder(struct drm_connector *connector)
+{
+ struct inno_hdmi *hdmi = to_inno_hdmi(connector);
+
+ return &hdmi->encoder;
+}
+
+static int
+inno_hdmi_probe_single_connector_modes(struct drm_connector *connector,
+ uint32_t maxX, uint32_t maxY)
+{
+ return drm_helper_probe_single_connector_modes(connector, 1920, 1080);
+}
+
+static void inno_hdmi_connector_destroy(struct drm_connector *connector)
+{
+ drm_connector_unregister(connector);
+ drm_connector_cleanup(connector);
+}
+
+static struct drm_connector_funcs inno_hdmi_connector_funcs = {
+ .dpms = drm_helper_connector_dpms,
+ .fill_modes = inno_hdmi_probe_single_connector_modes,
+ .detect = inno_hdmi_connector_detect,
+ .destroy = inno_hdmi_connector_destroy,
+};
+
+static struct drm_connector_helper_funcs inno_hdmi_connector_helper_funcs = {
+ .get_modes = inno_hdmi_connector_get_modes,
+ .mode_valid = inno_hdmi_connector_mode_valid,
+ .best_encoder = inno_hdmi_connector_best_encoder,
+};
+
+static int inno_hdmi_register(struct drm_device *drm, struct inno_hdmi *hdmi)
+{
+ struct drm_encoder *encoder = &hdmi->encoder;
+
+ encoder->possible_crtcs = drm_of_find_possible_crtcs(drm, hdmi->dev->of_node);
+ /*
+ * If we failed to find the CRTC(s) which this encoder is
+ * supposed to be connected to, it's because the CRTC has
+ * not been registered yet. Defer probing, and hope that
+ * the required CRTC is added later.
+ */
+ if (encoder->possible_crtcs == 0)
+ return -EPROBE_DEFER;
+
+ drm_encoder_helper_add(encoder, &inno_hdmi_encoder_helper_funcs);
+ drm_encoder_init(drm, encoder, &inno_hdmi_encoder_funcs,
+ DRM_MODE_ENCODER_TMDS);
+
+ hdmi->connector.polled = DRM_CONNECTOR_POLL_HPD;
+
+ drm_connector_helper_add(&hdmi->connector,
+ &inno_hdmi_connector_helper_funcs);
+ drm_connector_init(drm, &hdmi->connector, &inno_hdmi_connector_funcs,
+ DRM_MODE_CONNECTOR_HDMIA);
+
+ hdmi->connector.encoder = encoder;
+
+ drm_mode_connector_attach_encoder(&hdmi->connector, encoder);
+
+ return 0;
+}
+
+static irqreturn_t inno_hdmi_i2c_irq(struct inno_hdmi *hdmi)
+{
+ struct inno_hdmi_i2c *i2c = hdmi->i2c;
+ u8 stat;
+
+ stat = hdmi_readb(hdmi, HDMI_INTERRUPT_STATUS1);
+ if (!(stat & m_INT_EDID_READY))
+ return IRQ_NONE;
+
+ /* Clear HDMI EDID interrupt flag */
+ hdmi_writeb(hdmi, HDMI_INTERRUPT_STATUS1, m_INT_EDID_READY);
+
+ complete(&i2c->cmp);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t inno_hdmi_hardirq(int irq, void *dev_id)
+{
+ struct inno_hdmi *hdmi = dev_id;
+ irqreturn_t ret = IRQ_NONE;
+ u8 interrupt;
+
+ if (hdmi->i2c)
+ ret = inno_hdmi_i2c_irq(hdmi);
+
+ interrupt = hdmi_readb(hdmi, HDMI_STATUS);
+ if (interrupt & m_INT_HOTPLUG) {
+ hdmi_modb(hdmi, HDMI_STATUS, m_INT_HOTPLUG, m_INT_HOTPLUG);
+ ret = IRQ_WAKE_THREAD;
+ }
+
+ return ret;
+}
+
+static irqreturn_t inno_hdmi_irq(int irq, void *dev_id)
+{
+ struct inno_hdmi *hdmi = dev_id;
+
+ drm_helper_hpd_irq_event(hdmi->connector.dev);
+
+ return IRQ_HANDLED;
+}
+
+static int inno_hdmi_i2c_wait(struct inno_hdmi *hdmi)
+{
+ struct inno_hdmi_i2c *i2c = hdmi->i2c;
+ int stat;
+
+ stat = wait_for_completion_timeout(&i2c->cmp, HZ / 10);
+ if (!stat) {
+ stat = wait_for_completion_timeout(&i2c->cmp, HZ / 10);
+ if (!stat)
+ return -EAGAIN;
+ }
+
+ return 0;
+}
+
+static int inno_hdmi_i2c_read(struct inno_hdmi *hdmi, struct i2c_msg *msgs)
+{
+ int length = msgs->len;
+ u8 *buf = msgs->buf;
+ int ret;
+
+ ret = inno_hdmi_i2c_wait(hdmi);
+ if (ret)
+ return ret;
+
+ while (length--)
+ *buf++ = hdmi_readb(hdmi, HDMI_EDID_FIFO_ADDR);
+
+ return 0;
+}
+
+static int inno_hdmi_i2c_write(struct inno_hdmi *hdmi, struct i2c_msg *msgs)
+{
+ struct inno_hdmi_i2c *i2c = hdmi->i2c;
+
+ /*
+ * The DDC module only support read EDID message, so
+ * we assume that each word write to this i2c adapter
+ * should be the offset of EDID word address.
+ */
+ if ((msgs->len != 1) ||
+ ((msgs->addr != DDC_ADDR) && (msgs->addr != DDC_SEGMENT_ADDR)))
+ return -EINVAL;
+
+ reinit_completion(&i2c->cmp);
+
+ if (msgs->addr == DDC_SEGMENT_ADDR)
+ hdmi->i2c->segment_addr = msgs->buf[0];
+ if (msgs->addr == DDC_ADDR)
+ hdmi->i2c->ddc_addr = msgs->buf[0];
+
+ /* Set edid fifo first addr */
+ hdmi_writeb(hdmi, HDMI_EDID_FIFO_OFFSET, 0x00);
+
+ /* Set edid word address 0x00/0x80 */
+ hdmi_writeb(hdmi, HDMI_EDID_WORD_ADDR, hdmi->i2c->ddc_addr);
+
+ /* Set edid segment pointer */
+ hdmi_writeb(hdmi, HDMI_EDID_SEGMENT_POINTER, hdmi->i2c->segment_addr);
+
+ return 0;
+}
+
+static int inno_hdmi_i2c_xfer(struct i2c_adapter *adap,
+ struct i2c_msg *msgs, int num)
+{
+ struct inno_hdmi *hdmi = i2c_get_adapdata(adap);
+ struct inno_hdmi_i2c *i2c = hdmi->i2c;
+ int i, ret = 0;
+
+ mutex_lock(&i2c->lock);
+
+ /* Clear the EDID interrupt flag and unmute the interrupt */
+ hdmi_writeb(hdmi, HDMI_INTERRUPT_MASK1, m_INT_EDID_READY);
+ hdmi_writeb(hdmi, HDMI_INTERRUPT_STATUS1, m_INT_EDID_READY);
+
+ for (i = 0; i < num; i++) {
+ dev_dbg(hdmi->dev, "xfer: num: %d/%d, len: %d, flags: %#x\n",
+ i + 1, num, msgs[i].len, msgs[i].flags);
+
+ if (msgs[i].flags & I2C_M_RD)
+ ret = inno_hdmi_i2c_read(hdmi, &msgs[i]);
+ else
+ ret = inno_hdmi_i2c_write(hdmi, &msgs[i]);
+
+ if (ret < 0)
+ break;
+ }
+
+ if (!ret)
+ ret = num;
+
+ /* Mute HDMI EDID interrupt */
+ hdmi_writeb(hdmi, HDMI_INTERRUPT_MASK1, 0);
+
+ mutex_unlock(&i2c->lock);
+
+ return ret;
+}
+
+static u32 inno_hdmi_i2c_func(struct i2c_adapter *adapter)
+{
+ return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
+}
+
+static const struct i2c_algorithm inno_hdmi_algorithm = {
+ .master_xfer = inno_hdmi_i2c_xfer,
+ .functionality = inno_hdmi_i2c_func,
+};
+
+static struct i2c_adapter *inno_hdmi_i2c_adapter(struct inno_hdmi *hdmi)
+{
+ struct i2c_adapter *adap;
+ struct inno_hdmi_i2c *i2c;
+ int ret;
+
+ i2c = devm_kzalloc(hdmi->dev, sizeof(*i2c), GFP_KERNEL);
+ if (!i2c)
+ return ERR_PTR(-ENOMEM);
+
+ mutex_init(&i2c->lock);
+ init_completion(&i2c->cmp);
+
+ adap = &i2c->adap;
+ adap->class = I2C_CLASS_DDC;
+ adap->owner = THIS_MODULE;
+ adap->dev.parent = hdmi->dev;
+ adap->dev.of_node = hdmi->dev->of_node;
+ adap->algo = &inno_hdmi_algorithm;
+ strlcpy(adap->name, "Inno HDMI", sizeof(adap->name));
+ i2c_set_adapdata(adap, hdmi);
+
+ ret = i2c_add_adapter(adap);
+ if (ret) {
+ dev_warn(hdmi->dev, "cannot add %s I2C adapter\n", adap->name);
+ devm_kfree(hdmi->dev, i2c);
+ return ERR_PTR(ret);
+ }
+
+ hdmi->i2c = i2c;
+
+ dev_info(hdmi->dev, "registered %s I2C bus driver\n", adap->name);
+
+ return adap;
+}
+
+static int inno_hdmi_bind(struct device *dev, struct device *master,
+ void *data)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct drm_device *drm = data;
+ struct inno_hdmi *hdmi;
+ struct resource *iores;
+ int irq;
+ int ret;
+
+ hdmi = devm_kzalloc(dev, sizeof(*hdmi), GFP_KERNEL);
+ if (!hdmi)
+ return -ENOMEM;
+
+ hdmi->dev = dev;
+ hdmi->drm_dev = drm;
+
+ iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!iores)
+ return -ENXIO;
+
+ hdmi->regs = devm_ioremap_resource(dev, iores);
+ if (IS_ERR(hdmi->regs))
+ return PTR_ERR(hdmi->regs);
+
+ hdmi->pclk = devm_clk_get(hdmi->dev, "pclk");
+ if (IS_ERR(hdmi->pclk)) {
+ dev_err(hdmi->dev, "Unable to get HDMI pclk clk\n");
+ return PTR_ERR(hdmi->pclk);
+ }
+
+ ret = clk_prepare_enable(hdmi->pclk);
+ if (ret) {
+ dev_err(hdmi->dev, "Cannot enable HDMI pclk clock: %d\n", ret);
+ return ret;
+ }
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0)
+ return irq;
+
+ inno_hdmi_reset(hdmi);
+
+ hdmi->ddc = inno_hdmi_i2c_adapter(hdmi);
+ if (IS_ERR(hdmi->ddc)) {
+ hdmi->ddc = NULL;
+ return PTR_ERR(hdmi->ddc);
+ }
+
+ /*
+ * When IP controller haven't configured to an accurate video
+ * timing, then the TMDS clock source would be switched to
+ * PCLK_HDMI, so we need to init the TMDS rate to PCLK rate,
+ * and reconfigure the DDC clock.
+ */
+ hdmi->tmds_rate = clk_get_rate(hdmi->pclk);
+ inno_hdmi_i2c_init(hdmi);
+
+ ret = inno_hdmi_register(drm, hdmi);
+ if (ret)
+ return ret;
+
+ dev_set_drvdata(dev, hdmi);
+
+ /* Unmute hotplug interrupt */
+ hdmi_modb(hdmi, HDMI_STATUS, m_MASK_INT_HOTPLUG, v_MASK_INT_HOTPLUG(1));
+
+ ret = devm_request_threaded_irq(dev, irq, inno_hdmi_hardirq,
+ inno_hdmi_irq, IRQF_SHARED,
+ dev_name(dev), hdmi);
+
+ return ret;
+}
+
+static void inno_hdmi_unbind(struct device *dev, struct device *master,
+ void *data)
+{
+ struct inno_hdmi *hdmi = dev_get_drvdata(dev);
+
+ hdmi->connector.funcs->destroy(&hdmi->connector);
+ hdmi->encoder.funcs->destroy(&hdmi->encoder);
+
+ clk_disable_unprepare(hdmi->pclk);
+ i2c_put_adapter(hdmi->ddc);
+}
+
+static const struct component_ops inno_hdmi_ops = {
+ .bind = inno_hdmi_bind,
+ .unbind = inno_hdmi_unbind,
+};
+
+static int inno_hdmi_probe(struct platform_device *pdev)
+{
+ return component_add(&pdev->dev, &inno_hdmi_ops);
+}
+
+static int inno_hdmi_remove(struct platform_device *pdev)
+{
+ component_del(&pdev->dev, &inno_hdmi_ops);
+
+ return 0;
+}
+
+static const struct of_device_id inno_hdmi_dt_ids[] = {
+ { .compatible = "rockchip,rk3036-inno-hdmi",
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(of, inno_hdmi_dt_ids);
+
+static struct platform_driver inno_hdmi_driver = {
+ .probe = inno_hdmi_probe,
+ .remove = inno_hdmi_remove,
+ .driver = {
+ .name = "innohdmi-rockchip",
+ .of_match_table = inno_hdmi_dt_ids,
+ },
+};
+
+module_platform_driver(inno_hdmi_driver);
+
+MODULE_AUTHOR("Zheng Yang <zhengyang@rock-chips.com>");
+MODULE_AUTHOR("Yakir Yang <ykk@rock-chips.com>");
+MODULE_DESCRIPTION("Rockchip Specific INNO-HDMI Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:innohdmi-rockchip");
new file mode 100644
@@ -0,0 +1,364 @@
+/*
+ * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
+ * Zheng Yang <zhengyang@rock-chips.com>
+ * Yakir Yang <ykk@rock-chips.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __INNO_HDMI_H__
+#define __INNO_HDMI_H__
+
+#define DDC_SEGMENT_ADDR 0x30
+
+enum PWR_MODE {
+ NORMAL,
+ LOWER_PWR,
+};
+
+#define HDMI_SCL_RATE (100*1000)
+#define DDC_BUS_FREQ_L 0x4b
+#define DDC_BUS_FREQ_H 0x4c
+
+#define HDMI_SYS_CTRL 0x00
+#define m_RST_ANALOG (1 << 6)
+#define v_RST_ANALOG (0 << 6)
+#define v_NOT_RST_ANALOG (1 << 6)
+#define m_RST_DIGITAL (1 << 5)
+#define v_RST_DIGITAL (0 << 5)
+#define v_NOT_RST_DIGITAL (1 << 5)
+#define m_REG_CLK_INV (1 << 4)
+#define v_REG_CLK_NOT_INV (0 << 4)
+#define v_REG_CLK_INV (1 << 4)
+#define m_VCLK_INV (1 << 3)
+#define v_VCLK_NOT_INV (0 << 3)
+#define v_VCLK_INV (1 << 3)
+#define m_REG_CLK_SOURCE (1 << 2)
+#define v_REG_CLK_SOURCE_TMDS (0 << 2)
+#define v_REG_CLK_SOURCE_SYS (1 << 2)
+#define m_POWER (1 << 1)
+#define v_PWR_ON (0 << 1)
+#define v_PWR_OFF (1 << 1)
+#define m_INT_POL (1 << 0)
+#define v_INT_POL_HIGH 1
+#define v_INT_POL_LOW 0
+
+#define HDMI_VIDEO_CONTRL1 0x01
+#define m_VIDEO_INPUT_FORMAT (7 << 1)
+#define m_DE_SOURCE (1 << 0)
+#define v_VIDEO_INPUT_FORMAT(n) (n << 1)
+#define v_DE_EXTERNAL 1
+#define v_DE_INTERNAL 0
+enum {
+ VIDEO_INPUT_SDR_RGB444 = 0,
+ VIDEO_INPUT_DDR_RGB444 = 5,
+ VIDEO_INPUT_DDR_YCBCR422 = 6
+};
+
+#define HDMI_VIDEO_CONTRL2 0x02
+#define m_VIDEO_OUTPUT_COLOR (3 << 6)
+#define m_VIDEO_INPUT_BITS (3 << 4)
+#define m_VIDEO_INPUT_CSP (1 << 0)
+#define v_VIDEO_OUTPUT_COLOR(n) (((n) & 0x3) << 6)
+#define v_VIDEO_INPUT_BITS(n) (n << 4)
+#define v_VIDEO_INPUT_CSP(n) (n << 0)
+enum {
+ VIDEO_INPUT_12BITS = 0,
+ VIDEO_INPUT_10BITS = 1,
+ VIDEO_INPUT_REVERT = 2,
+ VIDEO_INPUT_8BITS = 3,
+};
+
+#define HDMI_VIDEO_CONTRL 0x03
+#define m_VIDEO_AUTO_CSC (1 << 7)
+#define v_VIDEO_AUTO_CSC(n) (n << 7)
+#define m_VIDEO_C0_C2_SWAP (1 << 0)
+#define v_VIDEO_C0_C2_SWAP(n) (n << 0)
+enum {
+ C0_C2_CHANGE_ENABLE = 0,
+ C0_C2_CHANGE_DISABLE = 1,
+ AUTO_CSC_DISABLE = 0,
+ AUTO_CSC_ENABLE = 1,
+};
+
+#define HDMI_VIDEO_CONTRL3 0x04
+#define m_COLOR_DEPTH_NOT_INDICATED (1 << 4)
+#define m_SOF (1 << 3)
+#define m_COLOR_RANGE (1 << 2)
+#define m_CSC (1 << 0)
+#define v_COLOR_DEPTH_NOT_INDICATED(n) ((n) << 4)
+#define v_SOF_ENABLE (0 << 3)
+#define v_SOF_DISABLE (1 << 3)
+#define v_COLOR_RANGE_FULL (1 << 2)
+#define v_COLOR_RANGE_LIMITED (0 << 2)
+#define v_CSC_ENABLE 1
+#define v_CSC_DISABLE 0
+
+#define HDMI_AV_MUTE 0x05
+#define m_AVMUTE_CLEAR (1 << 7)
+#define m_AVMUTE_ENABLE (1 << 6)
+#define m_AUDIO_MUTE (1 << 1)
+#define m_VIDEO_BLACK (1 << 0)
+#define v_AVMUTE_CLEAR(n) (n << 7)
+#define v_AVMUTE_ENABLE(n) (n << 6)
+#define v_AUDIO_MUTE(n) (n << 1)
+#define v_VIDEO_MUTE(n) (n << 0)
+
+#define HDMI_VIDEO_TIMING_CTL 0x08
+#define v_HSYNC_POLARITY(n) (n << 3)
+#define v_VSYNC_POLARITY(n) (n << 2)
+#define v_INETLACE(n) (n << 1)
+#define v_EXTERANL_VIDEO(n) (n << 0)
+
+#define HDMI_VIDEO_EXT_HTOTAL_L 0x09
+#define HDMI_VIDEO_EXT_HTOTAL_H 0x0a
+#define HDMI_VIDEO_EXT_HBLANK_L 0x0b
+#define HDMI_VIDEO_EXT_HBLANK_H 0x0c
+#define HDMI_VIDEO_EXT_HDELAY_L 0x0d
+#define HDMI_VIDEO_EXT_HDELAY_H 0x0e
+#define HDMI_VIDEO_EXT_HDURATION_L 0x0f
+#define HDMI_VIDEO_EXT_HDURATION_H 0x10
+#define HDMI_VIDEO_EXT_VTOTAL_L 0x11
+#define HDMI_VIDEO_EXT_VTOTAL_H 0x12
+#define HDMI_VIDEO_EXT_VBLANK 0x13
+#define HDMI_VIDEO_EXT_VDELAY 0x14
+#define HDMI_VIDEO_EXT_VDURATION 0x15
+
+#define HDMI_VIDEO_CSC_COEF 0x18
+
+#define HDMI_AUDIO_CTRL1 0x35
+enum {
+ CTS_SOURCE_INTERNAL = 0,
+ CTS_SOURCE_EXTERNAL = 1,
+};
+#define v_CTS_SOURCE(n) (n << 7)
+
+enum {
+ DOWNSAMPLE_DISABLE = 0,
+ DOWNSAMPLE_1_2 = 1,
+ DOWNSAMPLE_1_4 = 2,
+};
+#define v_DOWN_SAMPLE(n) (n << 5)
+
+enum {
+ AUDIO_SOURCE_IIS = 0,
+ AUDIO_SOURCE_SPDIF = 1,
+};
+#define v_AUDIO_SOURCE(n) (n << 3)
+
+#define v_MCLK_ENABLE(n) (n << 2)
+enum {
+ MCLK_128FS = 0,
+ MCLK_256FS = 1,
+ MCLK_384FS = 2,
+ MCLK_512FS = 3,
+};
+#define v_MCLK_RATIO(n) (n)
+
+#define AUDIO_SAMPLE_RATE 0x37
+enum {
+ AUDIO_32K = 0x3,
+ AUDIO_441K = 0x0,
+ AUDIO_48K = 0x2,
+ AUDIO_882K = 0x8,
+ AUDIO_96K = 0xa,
+ AUDIO_1764K = 0xc,
+ AUDIO_192K = 0xe,
+};
+
+#define AUDIO_I2S_MODE 0x38
+enum {
+ I2S_CHANNEL_1_2 = 1,
+ I2S_CHANNEL_3_4 = 3,
+ I2S_CHANNEL_5_6 = 7,
+ I2S_CHANNEL_7_8 = 0xf
+};
+#define v_I2S_CHANNEL(n) ((n) << 2)
+enum {
+ I2S_STANDARD = 0,
+ I2S_LEFT_JUSTIFIED = 1,
+ I2S_RIGHT_JUSTIFIED = 2,
+};
+#define v_I2S_MODE(n) (n)
+
+#define AUDIO_I2S_MAP 0x39
+#define AUDIO_I2S_SWAPS_SPDIF 0x3a
+#define v_SPIDF_FREQ(n) (n)
+
+#define N_32K 0x1000
+#define N_441K 0x1880
+#define N_882K 0x3100
+#define N_1764K 0x6200
+#define N_48K 0x1800
+#define N_96K 0x3000
+#define N_192K 0x6000
+
+#define HDMI_AUDIO_CHANNEL_STATUS 0x3e
+#define m_AUDIO_STATUS_NLPCM (1 << 7)
+#define m_AUDIO_STATUS_USE (1 << 6)
+#define m_AUDIO_STATUS_COPYRIGHT (1 << 5)
+#define m_AUDIO_STATUS_ADDITION (3 << 2)
+#define m_AUDIO_STATUS_CLK_ACCURACY (2 << 0)
+#define v_AUDIO_STATUS_NLPCM(n) ((n & 1) << 7)
+#define AUDIO_N_H 0x3f
+#define AUDIO_N_M 0x40
+#define AUDIO_N_L 0x41
+
+#define HDMI_AUDIO_CTS_H 0x45
+#define HDMI_AUDIO_CTS_M 0x46
+#define HDMI_AUDIO_CTS_L 0x47
+
+#define HDMI_DDC_CLK_L 0x4b
+#define HDMI_DDC_CLK_H 0x4c
+
+#define HDMI_EDID_SEGMENT_POINTER 0x4d
+#define HDMI_EDID_WORD_ADDR 0x4e
+#define HDMI_EDID_FIFO_OFFSET 0x4f
+#define HDMI_EDID_FIFO_ADDR 0x50
+
+#define HDMI_PACKET_SEND_MANUAL 0x9c
+#define HDMI_PACKET_SEND_AUTO 0x9d
+#define m_PACKET_GCP_EN (1 << 7)
+#define m_PACKET_MSI_EN (1 << 6)
+#define m_PACKET_SDI_EN (1 << 5)
+#define m_PACKET_VSI_EN (1 << 4)
+#define v_PACKET_GCP_EN(n) ((n & 1) << 7)
+#define v_PACKET_MSI_EN(n) ((n & 1) << 6)
+#define v_PACKET_SDI_EN(n) ((n & 1) << 5)
+#define v_PACKET_VSI_EN(n) ((n & 1) << 4)
+
+#define HDMI_CONTROL_PACKET_BUF_INDEX 0x9f
+enum {
+ INFOFRAME_VSI = 0x05,
+ INFOFRAME_AVI = 0x06,
+ INFOFRAME_AAI = 0x08,
+};
+
+#define HDMI_CONTROL_PACKET_ADDR 0xa0
+#define HDMI_SIZE_VSI_INFOFRAME 0x0A
+#define HDMI_SIZE_AVI_INFOFRAME 0x11
+#define HDMI_SIZE_AUDIO_INFOFRAME 0x0F
+enum {
+ AVI_COLOR_MODE_RGB = 0,
+ AVI_COLOR_MODE_YCBCR422 = 1,
+ AVI_COLOR_MODE_YCBCR444 = 2,
+ AVI_COLORIMETRY_NO_DATA = 0,
+
+ AVI_COLORIMETRY_SMPTE_170M = 1,
+ AVI_COLORIMETRY_ITU709 = 2,
+ AVI_COLORIMETRY_EXTENDED = 3,
+
+ AVI_CODED_FRAME_ASPECT_NO_DATA = 0,
+ AVI_CODED_FRAME_ASPECT_4_3 = 1,
+ AVI_CODED_FRAME_ASPECT_16_9 = 2,
+
+ ACTIVE_ASPECT_RATE_SAME_AS_CODED_FRAME = 0x08,
+ ACTIVE_ASPECT_RATE_4_3 = 0x09,
+ ACTIVE_ASPECT_RATE_16_9 = 0x0A,
+ ACTIVE_ASPECT_RATE_14_9 = 0x0B,
+};
+
+#define HDMI_HDCP_CTRL 0x52
+#define m_HDMI_DVI (1 << 1)
+#define v_HDMI_DVI(n) (n << 1)
+
+#define HDMI_INTERRUPT_MASK1 0xc0
+#define HDMI_INTERRUPT_STATUS1 0xc1
+#define m_INT_ACTIVE_VSYNC (1 << 5)
+#define m_INT_EDID_READY (1 << 2)
+
+#define HDMI_INTERRUPT_MASK2 0xc2
+#define HDMI_INTERRUPT_STATUS2 0xc3
+#define m_INT_HDCP_ERR (1 << 7)
+#define m_INT_BKSV_FLAG (1 << 6)
+#define m_INT_HDCP_OK (1 << 4)
+
+#define HDMI_STATUS 0xc8
+#define m_HOTPLUG (1 << 7)
+#define m_MASK_INT_HOTPLUG (1 << 5)
+#define m_INT_HOTPLUG (1 << 1)
+#define v_MASK_INT_HOTPLUG(n) ((n & 0x1) << 5)
+
+#define HDMI_COLORBAR 0xc9
+
+#define HDMI_PHY_SYNC 0xce
+#define HDMI_PHY_SYS_CTL 0xe0
+#define m_TMDS_CLK_SOURCE (1 << 5)
+#define v_TMDS_FROM_PLL (0 << 5)
+#define v_TMDS_FROM_GEN (1 << 5)
+#define m_PHASE_CLK (1 << 4)
+#define v_DEFAULT_PHASE (0 << 4)
+#define v_SYNC_PHASE (1 << 4)
+#define m_TMDS_CURRENT_PWR (1 << 3)
+#define v_TURN_ON_CURRENT (0 << 3)
+#define v_CAT_OFF_CURRENT (1 << 3)
+#define m_BANDGAP_PWR (1 << 2)
+#define v_BANDGAP_PWR_UP (0 << 2)
+#define v_BANDGAP_PWR_DOWN (1 << 2)
+#define m_PLL_PWR (1 << 1)
+#define v_PLL_PWR_UP (0 << 1)
+#define v_PLL_PWR_DOWN (1 << 1)
+#define m_TMDS_CHG_PWR (1 << 0)
+#define v_TMDS_CHG_PWR_UP (0 << 0)
+#define v_TMDS_CHG_PWR_DOWN (1 << 0)
+
+#define HDMI_PHY_CHG_PWR 0xe1
+#define v_CLK_CHG_PWR(n) ((n & 1) << 3)
+#define v_DATA_CHG_PWR(n) ((n & 7) << 0)
+
+#define HDMI_PHY_DRIVER 0xe2
+#define v_CLK_MAIN_DRIVER(n) (n << 4)
+#define v_DATA_MAIN_DRIVER(n) (n << 0)
+
+#define HDMI_PHY_PRE_EMPHASIS 0xe3
+#define v_PRE_EMPHASIS(n) ((n & 7) << 4)
+#define v_CLK_PRE_DRIVER(n) ((n & 3) << 2)
+#define v_DATA_PRE_DRIVER(n) ((n & 3) << 0)
+
+#define HDMI_PHY_FEEDBACK_DIV_RATIO_LOW 0xe7
+#define v_FEEDBACK_DIV_LOW(n) (n & 0xff)
+#define HDMI_PHY_FEEDBACK_DIV_RATIO_HIGH 0xe8
+#define v_FEEDBACK_DIV_HIGH(n) (n & 1)
+
+#define HDMI_PHY_PRE_DIV_RATIO 0xed
+#define v_PRE_DIV_RATIO(n) (n & 0x1f)
+
+#define HDMI_CEC_CTRL 0xd0
+#define m_ADJUST_FOR_HISENSE (1 << 6)
+#define m_REJECT_RX_BROADCAST (1 << 5)
+#define m_BUSFREETIME_ENABLE (1 << 2)
+#define m_REJECT_RX (1 << 1)
+#define m_START_TX (1 << 0)
+
+#define HDMI_CEC_DATA 0xd1
+#define HDMI_CEC_TX_OFFSET 0xd2
+#define HDMI_CEC_RX_OFFSET 0xd3
+#define HDMI_CEC_CLK_H 0xd4
+#define HDMI_CEC_CLK_L 0xd5
+#define HDMI_CEC_TX_LENGTH 0xd6
+#define HDMI_CEC_RX_LENGTH 0xd7
+#define HDMI_CEC_TX_INT_MASK 0xd8
+#define m_TX_DONE (1 << 3)
+#define m_TX_NOACK (1 << 2)
+#define m_TX_BROADCAST_REJ (1 << 1)
+#define m_TX_BUSNOTFREE (1 << 0)
+
+#define HDMI_CEC_RX_INT_MASK 0xd9
+#define m_RX_LA_ERR (1 << 4)
+#define m_RX_GLITCH (1 << 3)
+#define m_RX_DONE (1 << 0)
+
+#define HDMI_CEC_TX_INT 0xda
+#define HDMI_CEC_RX_INT 0xdb
+#define HDMI_CEC_BUSFREETIME_L 0xdc
+#define HDMI_CEC_BUSFREETIME_H 0xdd
+#define HDMI_CEC_LOGICADDR 0xde
+
+#endif /* __INNO_HDMI_H__ */
The Innosilicon HDMI is a low power HDMI 1.4 transmitter IP, and it have been integrated on some rockchip CPUs (like RK3036, RK312x). Signed-off-by: Yakir Yang <ykk@rock-chips.com> --- drivers/gpu/drm/rockchip/Kconfig | 8 + drivers/gpu/drm/rockchip/Makefile | 1 + drivers/gpu/drm/rockchip/inno_hdmi.c | 1008 ++++++++++++++++++++++++++++++++++ drivers/gpu/drm/rockchip/inno_hdmi.h | 364 ++++++++++++ 4 files changed, 1381 insertions(+) create mode 100644 drivers/gpu/drm/rockchip/inno_hdmi.c create mode 100644 drivers/gpu/drm/rockchip/inno_hdmi.h