| Message ID | 20240205-phy-hdptx-v2-2-a7150814c047@collabora.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add support for RK3588 HDMI/eDP Combo PHY | expand |
On 05-02-24, 13:24, Cristian Ciocaltea wrote: > Add driver for the HDMI/eDP TX Combo PHY found on Rockchip RK3588 SoC. > > The PHY is based on a Samsung IP block and supports HDMI 2.1 TMDS, FRL > and eDP links. The maximum data rate is 12Gbps (FRL), while the minimum > is 250Mbps (TMDS). > > Only the TMDS link is currently supported. > > Co-developed-by: Algea Cao <algea.cao@rock-chips.com> > Signed-off-by: Algea Cao <algea.cao@rock-chips.com> > Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com> > --- > drivers/phy/rockchip/Kconfig | 8 + > drivers/phy/rockchip/Makefile | 1 + > drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c | 1040 +++++++++++++++++++++ > 3 files changed, 1049 insertions(+) > > diff --git a/drivers/phy/rockchip/Kconfig b/drivers/phy/rockchip/Kconfig > index 94360fc96a6f..a34f67bb7e61 100644 > --- a/drivers/phy/rockchip/Kconfig > +++ b/drivers/phy/rockchip/Kconfig > @@ -83,6 +83,14 @@ config PHY_ROCKCHIP_PCIE > help > Enable this to support the Rockchip PCIe PHY. > > +config PHY_ROCKCHIP_SAMSUNG_HDPTX > + tristate "Rockchip Samsung HDMI/eDP Combo PHY driver" > + depends on (ARCH_ROCKCHIP || COMPILE_TEST) && OF > + select GENERIC_PHY > + help > + Enable this to support the Rockchip HDMI/eDP Combo PHY > + with Samsung IP block. > + > config PHY_ROCKCHIP_SNPS_PCIE3 > tristate "Rockchip Snps PCIe3 PHY Driver" > depends on (ARCH_ROCKCHIP && OF) || COMPILE_TEST > diff --git a/drivers/phy/rockchip/Makefile b/drivers/phy/rockchip/Makefile > index 7eab129230d1..3d911304e654 100644 > --- a/drivers/phy/rockchip/Makefile > +++ b/drivers/phy/rockchip/Makefile > @@ -8,6 +8,7 @@ obj-$(CONFIG_PHY_ROCKCHIP_INNO_HDMI) += phy-rockchip-inno-hdmi.o > obj-$(CONFIG_PHY_ROCKCHIP_INNO_USB2) += phy-rockchip-inno-usb2.o > obj-$(CONFIG_PHY_ROCKCHIP_NANENG_COMBO_PHY) += phy-rockchip-naneng-combphy.o > obj-$(CONFIG_PHY_ROCKCHIP_PCIE) += phy-rockchip-pcie.o > +obj-$(CONFIG_PHY_ROCKCHIP_SAMSUNG_HDPTX) += phy-rockchip-samsung-hdptx.o > obj-$(CONFIG_PHY_ROCKCHIP_SNPS_PCIE3) += phy-rockchip-snps-pcie3.o > obj-$(CONFIG_PHY_ROCKCHIP_TYPEC) += phy-rockchip-typec.o > obj-$(CONFIG_PHY_ROCKCHIP_USB) += phy-rockchip-usb.o > diff --git a/drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c b/drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c > new file mode 100644 > index 000000000000..744bbe8280a8 > --- /dev/null > +++ b/drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c > @@ -0,0 +1,1040 @@ > +// SPDX-License-Identifier: GPL-2.0+ > +/* > + * Copyright (c) 2021-2022 Rockchip Electronics Co., Ltd. > + * Copyright (c) 2024 Collabora Ltd. > + * > + * Author: Algea Cao <algea.cao@rock-chips.com> > + * Author: Cristian Ciocaltea <cristian.ciocaltea@collabora.com> > + */ > +#include <linux/bitfield.h> > +#include <linux/clk.h> > +#include <linux/delay.h> > +#include <linux/mfd/syscon.h> > +#include <linux/module.h> > +#include <linux/of.h> > +#include <linux/of_platform.h> > +#include <linux/phy/phy.h> > +#include <linux/platform_device.h> > +#include <linux/rational.h> > +#include <linux/regmap.h> > +#include <linux/reset.h> > + > +#define GRF_HDPTX_CON0 0x00 > +#define HDPTX_I_PLL_EN BIT(7) > +#define HDPTX_I_BIAS_EN BIT(6) > +#define HDPTX_I_BGR_EN BIT(5) > +#define GRF_HDPTX_STATUS 0x80 > +#define HDPTX_O_PLL_LOCK_DONE BIT(3) > +#define HDPTX_O_PHY_CLK_RDY BIT(2) > +#define HDPTX_O_PHY_RDY BIT(1) > +#define HDPTX_O_SB_RDY BIT(0) > + > +#define HDTPX_REG(_n, _min, _max) \ > + ( \ > + BUILD_BUG_ON_ZERO((0x##_n) < (0x##_min)) + \ > + BUILD_BUG_ON_ZERO((0x##_n) > (0x##_max)) + \ > + ((0x##_n) * 4) \ > + ) > + > +#define CMN_REG(n) HDTPX_REG(n, 0000, 00A7) > +#define SB_REG(n) HDTPX_REG(n, 0100, 0129) > +#define LNTOP_REG(n) HDTPX_REG(n, 0200, 0229) > +#define LANE_REG(n) HDTPX_REG(n, 0300, 062D) > + > +/* CMN_REG(0008) */ > +#define LCPLL_EN_MASK BIT(6) > +#define LCPLL_LCVCO_MODE_EN_MASK BIT(4) > +/* CMN_REG(001E) */ > +#define LCPLL_PI_EN_MASK BIT(5) > +#define LCPLL_100M_CLK_EN_MASK BIT(0) > +/* CMN_REG(0025) */ > +#define LCPLL_PMS_IQDIV_RSTN BIT(4) > +/* CMN_REG(0028) */ > +#define LCPLL_SDC_FRAC_EN BIT(2) > +#define LCPLL_SDC_FRAC_RSTN BIT(0) > +/* CMN_REG(002D) */ > +#define LCPLL_SDC_N_MASK GENMASK(3, 1) > +/* CMN_REG(002E) */ > +#define LCPLL_SDC_NUMBERATOR_MASK GENMASK(5, 0) > +/* CMN_REG(002F) */ > +#define LCPLL_SDC_DENOMINATOR_MASK GENMASK(7, 2) > +#define LCPLL_SDC_NDIV_RSTN BIT(0) > +/* CMN_REG(003D) */ > +#define ROPLL_LCVCO_EN BIT(4) > +/* CMN_REG(004E) */ > +#define ROPLL_PI_EN BIT(5) > +/* CMN_REG(005C) */ > +#define ROPLL_PMS_IQDIV_RSTN BIT(5) > +/* CMN_REG(005E) */ > +#define ROPLL_SDM_EN_MASK BIT(6) > +#define ROPLL_SDM_FRAC_EN_RBR BIT(3) > +#define ROPLL_SDM_FRAC_EN_HBR BIT(2) > +#define ROPLL_SDM_FRAC_EN_HBR2 BIT(1) > +#define ROPLL_SDM_FRAC_EN_HBR3 BIT(0) > +/* CMN_REG(0064) */ > +#define ROPLL_SDM_NUM_SIGN_RBR_MASK BIT(3) > +/* CMN_REG(0069) */ > +#define ROPLL_SDC_N_RBR_MASK GENMASK(2, 0) > +/* CMN_REG(0074) */ > +#define ROPLL_SDC_NDIV_RSTN BIT(2) > +#define ROPLL_SSC_EN BIT(0) > +/* CMN_REG(0081) */ > +#define OVRD_PLL_CD_CLK_EN BIT(8) > +#define PLL_CD_HSCLK_EAST_EN BIT(0) > +/* CMN_REG(0086) */ > +#define PLL_PCG_POSTDIV_SEL_MASK GENMASK(7, 4) > +#define PLL_PCG_CLK_SEL_MASK GENMASK(3, 1) > +#define PLL_PCG_CLK_EN BIT(0) > +/* CMN_REG(0087) */ > +#define PLL_FRL_MODE_EN BIT(3) > +#define PLL_TX_HS_CLK_EN BIT(2) > +/* CMN_REG(0089) */ > +#define LCPLL_ALONE_MODE BIT(1) > +/* CMN_REG(0097) */ > +#define DIG_CLK_SEL BIT(1) > +#define ROPLL_REF BIT(1) > +#define LCPLL_REF 0 > +/* CMN_REG(0099) */ > +#define CMN_ROPLL_ALONE_MODE BIT(2) > +#define ROPLL_ALONE_MODE BIT(2) > +/* CMN_REG(009A) */ > +#define HS_SPEED_SEL BIT(0) > +#define DIV_10_CLOCK BIT(0) > +/* CMN_REG(009B) */ > +#define IS_SPEED_SEL BIT(4) > +#define LINK_SYMBOL_CLOCK BIT(4) > +#define LINK_SYMBOL_CLOCK1_2 0 > + > +/* SB_REG(0102) */ > +#define OVRD_SB_RXTERM_EN_MASK BIT(5) > +#define SB_RXTERM_EN_MASK BIT(4) > +#define ANA_SB_RXTERM_OFFSP_MASK GENMASK(3, 0) > +/* SB_REG(0103) */ > +#define ANA_SB_RXTERM_OFFSN_MASK GENMASK(6, 3) > +#define OVRD_SB_RX_RESCAL_DONE_MASK BIT(1) > +#define SB_RX_RESCAL_DONE_MASK BIT(0) > +/* SB_REG(0104) */ > +#define OVRD_SB_EN_MASK BIT(5) > +#define SB_EN_MASK BIT(4) > +/* SB_REG(0105) */ > +#define OVRD_SB_EARC_CMDC_EN_MASK BIT(6) > +#define SB_EARC_CMDC_EN_MASK BIT(5) > +#define ANA_SB_TX_HLVL_PROG_MASK GENMASK(2, 0) > +/* SB_REG(0106) */ > +#define ANA_SB_TX_LLVL_PROG_MASK GENMASK(6, 4) > +/* SB_REG(0109) */ > +#define ANA_SB_DMRX_AFC_DIV_RATIO_MASK GENMASK(2, 0) > +/* SB_REG(010F) */ > +#define OVRD_SB_VREG_EN_MASK BIT(7) > +#define SB_VREG_EN_MASK BIT(6) > +#define OVRD_SB_VREG_LPF_BYPASS_MASK BIT(5) > +#define SB_VREG_LPF_BYPASS_MASK BIT(4) > +#define ANA_SB_VREG_GAIN_CTRL_MASK GENMASK(3, 0) > +/* SB_REG(0110) */ > +#define ANA_SB_VREG_REF_SEL_MASK BIT(0) > +/* SB_REG(0113) */ > +#define SB_RX_RCAL_OPT_CODE_MASK GENMASK(5, 4) > +#define SB_RX_RTERM_CTRL_MASK GENMASK(3, 0) > +/* SB_REG(0114) */ > +#define SB_TG_SB_EN_DELAY_TIME_MASK GENMASK(5, 3) > +#define SB_TG_RXTERM_EN_DELAY_TIME_MASK GENMASK(2, 0) > +/* SB_REG(0115) */ > +#define SB_READY_DELAY_TIME_MASK GENMASK(5, 3) > +#define SB_TG_OSC_EN_DELAY_TIME_MASK GENMASK(2, 0) > +/* SB_REG(0116) */ > +#define AFC_RSTN_DELAY_TIME_MASK GENMASK(6, 4) > +/* SB_REG(0117) */ > +#define FAST_PULSE_TIME_MASK GENMASK(3, 0) > +/* SB_REG(011B) */ > +#define SB_EARC_SIG_DET_BYPASS_MASK BIT(4) > +#define SB_AFC_TOL_MASK GENMASK(3, 0) > +/* SB_REG(011F) */ > +#define SB_PWM_AFC_CTRL_MASK GENMASK(7, 2) > +#define SB_RCAL_RSTN_MASK BIT(1) > +/* SB_REG(0120) */ > +#define SB_EARC_EN_MASK BIT(1) > +#define SB_EARC_AFC_EN_MASK BIT(2) > +/* SB_REG(0123) */ > +#define OVRD_SB_READY_MASK BIT(5) > +#define SB_READY_MASK BIT(4) > + > +/* LNTOP_REG(0200) */ > +#define PROTOCOL_SEL BIT(2) > +#define HDMI_MODE BIT(2) > +#define HDMI_TMDS_FRL_SEL BIT(1) > +/* LNTOP_REG(0206) */ > +#define DATA_BUS_SEL BIT(0) > +#define DATA_BUS_36_40 BIT(0) > +/* LNTOP_REG(0207) */ > +#define LANE_EN 0xf > +#define ALL_LANE_EN 0xf > + > +/* LANE_REG(0312) */ > +#define LN0_TX_SER_RATE_SEL_RBR BIT(5) > +#define LN0_TX_SER_RATE_SEL_HBR BIT(4) > +#define LN0_TX_SER_RATE_SEL_HBR2 BIT(3) > +#define LN0_TX_SER_RATE_SEL_HBR3 BIT(2) > +/* LANE_REG(0412) */ > +#define LN1_TX_SER_RATE_SEL_RBR BIT(5) > +#define LN1_TX_SER_RATE_SEL_HBR BIT(4) > +#define LN1_TX_SER_RATE_SEL_HBR2 BIT(3) > +#define LN1_TX_SER_RATE_SEL_HBR3 BIT(2) > +/* LANE_REG(0512) */ > +#define LN2_TX_SER_RATE_SEL_RBR BIT(5) > +#define LN2_TX_SER_RATE_SEL_HBR BIT(4) > +#define LN2_TX_SER_RATE_SEL_HBR2 BIT(3) > +#define LN2_TX_SER_RATE_SEL_HBR3 BIT(2) > +/* LANE_REG(0612) */ > +#define LN3_TX_SER_RATE_SEL_RBR BIT(5) > +#define LN3_TX_SER_RATE_SEL_HBR BIT(4) > +#define LN3_TX_SER_RATE_SEL_HBR2 BIT(3) > +#define LN3_TX_SER_RATE_SEL_HBR3 BIT(2) > + > +struct lcpll_config { > + u32 bit_rate; > + u8 lcvco_mode_en; > + u8 pi_en; > + u8 clk_en_100m; > + u8 pms_mdiv; > + u8 pms_mdiv_afc; > + u8 pms_pdiv; > + u8 pms_refdiv; > + u8 pms_sdiv; > + u8 pi_cdiv_rstn; > + u8 pi_cdiv_sel; > + u8 sdm_en; > + u8 sdm_rstn; > + u8 sdc_frac_en; > + u8 sdc_rstn; > + u8 sdm_deno; > + u8 sdm_num_sign; > + u8 sdm_num; > + u8 sdc_n; > + u8 sdc_n2; > + u8 sdc_num; > + u8 sdc_deno; > + u8 sdc_ndiv_rstn; > + u8 ssc_en; > + u8 ssc_fm_dev; > + u8 ssc_fm_freq; > + u8 ssc_clk_div_sel; > + u8 cd_tx_ser_rate_sel; > +}; > + > +struct ropll_config { > + u32 bit_rate; > + u8 pms_mdiv; > + u8 pms_mdiv_afc; > + u8 pms_pdiv; > + u8 pms_refdiv; > + u8 pms_sdiv; > + u8 pms_iqdiv_rstn; > + u8 ref_clk_sel; > + u8 sdm_en; > + u8 sdm_rstn; > + u8 sdc_frac_en; > + u8 sdc_rstn; > + u8 sdm_clk_div; > + u8 sdm_deno; > + u8 sdm_num_sign; > + u8 sdm_num; > + u8 sdc_n; > + u8 sdc_num; > + u8 sdc_deno; > + u8 sdc_ndiv_rstn; > + u8 ssc_en; > + u8 ssc_fm_dev; > + u8 ssc_fm_freq; > + u8 ssc_clk_div_sel; > + u8 ana_cpp_ctrl; > + u8 ana_lpf_c_sel; > + u8 cd_tx_ser_rate_sel; > +}; > + > +enum rockchip_hdptx_reset { > + RST_PHY = 0, > + RST_APB, > + RST_INIT, > + RST_CMN, > + RST_LANE, > + RST_ROPLL, > + RST_LCPLL, > + RST_MAX > +}; > + > +struct rockchip_hdptx_phy { > + struct device *dev; > + struct regmap *regmap; > + struct regmap *grf; > + > + struct phy *phy; > + struct phy_config *phy_cfg; > + struct clk_bulk_data *clks; > + int nr_clks; > + struct reset_control_bulk_data rsts[RST_MAX]; > +}; > + > +static const struct ropll_config ropll_tmds_cfg[] = { > + { 5940000, 124, 124, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 62, 1, 16, 5, 0, > + 1, 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, > + { 3712500, 155, 155, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 62, 1, 16, 5, 0, > + 1, 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, > + { 2970000, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 62, 1, 16, 5, 0, > + 1, 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, > + { 1620000, 135, 135, 1, 1, 3, 1, 1, 0, 1, 1, 1, 1, 4, 0, 3, 5, 5, 0x10, > + 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, > + { 1856250, 155, 155, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 62, 1, 16, 5, 0, > + 1, 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, > + { 1540000, 193, 193, 1, 1, 5, 1, 1, 1, 1, 1, 1, 1, 193, 1, 32, 2, 1, > + 1, 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, > + { 1485000, 0x7b, 0x7b, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 4, 0, 3, 5, 5, > + 0x10, 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, > + { 1462500, 122, 122, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 244, 1, 16, 2, 1, 1, > + 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, > + { 1190000, 149, 149, 1, 1, 5, 1, 1, 1, 1, 1, 1, 1, 149, 1, 16, 2, 1, 1, > + 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, > + { 1065000, 89, 89, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 89, 1, 16, 1, 0, 1, > + 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, > + { 1080000, 135, 135, 1, 1, 5, 1, 1, 0, 1, 0, 1, 1, 0x9, 0, 0x05, 0, > + 0x14, 0x18, 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, > + { 855000, 214, 214, 1, 1, 11, 1, 1, 1, 1, 1, 1, 1, 214, 1, 16, 2, 1, > + 1, 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, > + { 835000, 105, 105, 1, 1, 5, 1, 1, 1, 1, 1, 1, 1, 42, 1, 16, 1, 0, > + 1, 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, > + { 928125, 155, 155, 1, 1, 7, 1, 1, 1, 1, 1, 1, 1, 62, 1, 16, 5, 0, > + 1, 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, > + { 742500, 124, 124, 1, 1, 7, 1, 1, 1, 1, 1, 1, 1, 62, 1, 16, 5, 0, > + 1, 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, > + { 650000, 162, 162, 1, 1, 11, 1, 1, 1, 1, 1, 1, 1, 54, 0, 16, 4, 1, > + 1, 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, > + { 337500, 0x70, 0x70, 1, 1, 0xf, 1, 1, 1, 1, 1, 1, 1, 0x2, 0, 0x01, 5, > + 1, 1, 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, > + { 400000, 100, 100, 1, 1, 11, 1, 1, 0, 1, 0, 1, 1, 0x9, 0, 0x05, 0, > + 0x14, 0x18, 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, > + { 270000, 0x5a, 0x5a, 1, 1, 0xf, 1, 1, 0, 1, 0, 1, 1, 0x9, 0, 0x05, 0, > + 0x14, 0x18, 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, > + { 251750, 84, 84, 1, 1, 0xf, 1, 1, 1, 1, 1, 1, 1, 168, 1, 16, 4, 1, 1, > + 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, > +}; > + > +static const struct reg_sequence hdtpx_common_cmn_init_seq[] = { > + REG_SEQ0(CMN_REG(0009), 0x0c), > + REG_SEQ0(CMN_REG(000A), 0x83), > + REG_SEQ0(CMN_REG(000B), 0x06), > + REG_SEQ0(CMN_REG(000C), 0x20), > + REG_SEQ0(CMN_REG(000D), 0xb8), > + REG_SEQ0(CMN_REG(000E), 0x0f), > + REG_SEQ0(CMN_REG(000F), 0x0f), Any reason for these to be mixed case, lets have lower case pls everywhere > + REG_SEQ0(CMN_REG(0010), 0x04), > + REG_SEQ0(CMN_REG(0011), 0x00), > + REG_SEQ0(CMN_REG(0012), 0x26), > + REG_SEQ0(CMN_REG(0013), 0x22), > + REG_SEQ0(CMN_REG(0014), 0x24), > + REG_SEQ0(CMN_REG(0015), 0x77), > + REG_SEQ0(CMN_REG(0016), 0x08), > + REG_SEQ0(CMN_REG(0017), 0x00), > + REG_SEQ0(CMN_REG(0018), 0x04), > + REG_SEQ0(CMN_REG(0019), 0x48), > + REG_SEQ0(CMN_REG(001A), 0x01), > + REG_SEQ0(CMN_REG(001B), 0x00), > + REG_SEQ0(CMN_REG(001C), 0x01), > + REG_SEQ0(CMN_REG(001D), 0x64), > + REG_SEQ0(CMN_REG(001F), 0x00), > + REG_SEQ0(CMN_REG(0026), 0x53), > + REG_SEQ0(CMN_REG(0029), 0x01), > + REG_SEQ0(CMN_REG(0030), 0x00), > + REG_SEQ0(CMN_REG(0031), 0x20), > + REG_SEQ0(CMN_REG(0032), 0x30), > + REG_SEQ0(CMN_REG(0033), 0x0b), > + REG_SEQ0(CMN_REG(0034), 0x23), > + REG_SEQ0(CMN_REG(0035), 0x00), > + REG_SEQ0(CMN_REG(0038), 0x00), > + REG_SEQ0(CMN_REG(0039), 0x00), > + REG_SEQ0(CMN_REG(003A), 0x00), > + REG_SEQ0(CMN_REG(003B), 0x00), > + REG_SEQ0(CMN_REG(003C), 0x80), > + REG_SEQ0(CMN_REG(003E), 0x0c), > + REG_SEQ0(CMN_REG(003F), 0x83), > + REG_SEQ0(CMN_REG(0040), 0x06), > + REG_SEQ0(CMN_REG(0041), 0x20), > + REG_SEQ0(CMN_REG(0042), 0xb8), > + REG_SEQ0(CMN_REG(0043), 0x00), > + REG_SEQ0(CMN_REG(0044), 0x46), > + REG_SEQ0(CMN_REG(0045), 0x24), > + REG_SEQ0(CMN_REG(0046), 0xff), > + REG_SEQ0(CMN_REG(0047), 0x00), > + REG_SEQ0(CMN_REG(0048), 0x44), > + REG_SEQ0(CMN_REG(0049), 0xfa), > + REG_SEQ0(CMN_REG(004A), 0x08), > + REG_SEQ0(CMN_REG(004B), 0x00), > + REG_SEQ0(CMN_REG(004C), 0x01), > + REG_SEQ0(CMN_REG(004D), 0x64), > + REG_SEQ0(CMN_REG(004E), 0x14), > + REG_SEQ0(CMN_REG(004F), 0x00), > + REG_SEQ0(CMN_REG(0050), 0x00), > + REG_SEQ0(CMN_REG(005D), 0x0c), > + REG_SEQ0(CMN_REG(005F), 0x01), > + REG_SEQ0(CMN_REG(006B), 0x04), > + REG_SEQ0(CMN_REG(0073), 0x30), > + REG_SEQ0(CMN_REG(0074), 0x00), > + REG_SEQ0(CMN_REG(0075), 0x20), > + REG_SEQ0(CMN_REG(0076), 0x30), > + REG_SEQ0(CMN_REG(0077), 0x08), > + REG_SEQ0(CMN_REG(0078), 0x0c), > + REG_SEQ0(CMN_REG(0079), 0x00), > + REG_SEQ0(CMN_REG(007B), 0x00), > + REG_SEQ0(CMN_REG(007C), 0x00), > + REG_SEQ0(CMN_REG(007D), 0x00), > + REG_SEQ0(CMN_REG(007E), 0x00), > + REG_SEQ0(CMN_REG(007F), 0x00), > + REG_SEQ0(CMN_REG(0080), 0x00), > + REG_SEQ0(CMN_REG(0081), 0x09), > + REG_SEQ0(CMN_REG(0082), 0x04), > + REG_SEQ0(CMN_REG(0083), 0x24), > + REG_SEQ0(CMN_REG(0084), 0x20), > + REG_SEQ0(CMN_REG(0085), 0x03), > + REG_SEQ0(CMN_REG(0086), 0x01), > + REG_SEQ0(CMN_REG(0087), 0x0c), > + REG_SEQ0(CMN_REG(008A), 0x55), > + REG_SEQ0(CMN_REG(008B), 0x25), > + REG_SEQ0(CMN_REG(008C), 0x2c), > + REG_SEQ0(CMN_REG(008D), 0x22), > + REG_SEQ0(CMN_REG(008E), 0x14), > + REG_SEQ0(CMN_REG(008F), 0x20), > + REG_SEQ0(CMN_REG(0090), 0x00), > + REG_SEQ0(CMN_REG(0091), 0x00), > + REG_SEQ0(CMN_REG(0092), 0x00), > + REG_SEQ0(CMN_REG(0093), 0x00), > + REG_SEQ0(CMN_REG(009A), 0x11), > + REG_SEQ0(CMN_REG(009B), 0x10), > +}; > + > +static const struct reg_sequence hdtpx_tmds_cmn_init_seq[] = { > + REG_SEQ0(CMN_REG(0008), 0x00), > + REG_SEQ0(CMN_REG(0011), 0x01), > + REG_SEQ0(CMN_REG(0017), 0x20), > + REG_SEQ0(CMN_REG(001E), 0x14), > + REG_SEQ0(CMN_REG(0020), 0x00), > + REG_SEQ0(CMN_REG(0021), 0x00), > + REG_SEQ0(CMN_REG(0022), 0x11), > + REG_SEQ0(CMN_REG(0023), 0x00), > + REG_SEQ0(CMN_REG(0024), 0x00), > + REG_SEQ0(CMN_REG(0025), 0x53), > + REG_SEQ0(CMN_REG(0026), 0x00), > + REG_SEQ0(CMN_REG(0027), 0x00), > + REG_SEQ0(CMN_REG(0028), 0x01), > + REG_SEQ0(CMN_REG(002A), 0x00), > + REG_SEQ0(CMN_REG(002B), 0x00), > + REG_SEQ0(CMN_REG(002C), 0x00), > + REG_SEQ0(CMN_REG(002D), 0x00), > + REG_SEQ0(CMN_REG(002E), 0x04), > + REG_SEQ0(CMN_REG(002F), 0x00), > + REG_SEQ0(CMN_REG(0030), 0x20), > + REG_SEQ0(CMN_REG(0031), 0x30), > + REG_SEQ0(CMN_REG(0032), 0x0b), > + REG_SEQ0(CMN_REG(0033), 0x23), > + REG_SEQ0(CMN_REG(0034), 0x00), > + REG_SEQ0(CMN_REG(003D), 0x40), > + REG_SEQ0(CMN_REG(0042), 0x78), > + REG_SEQ0(CMN_REG(004E), 0x34), > + REG_SEQ0(CMN_REG(005C), 0x25), > + REG_SEQ0(CMN_REG(005E), 0x4f), > + REG_SEQ0(CMN_REG(0074), 0x04), > + REG_SEQ0(CMN_REG(0081), 0x01), > + REG_SEQ0(CMN_REG(0087), 0x04), > + REG_SEQ0(CMN_REG(0089), 0x00), > + REG_SEQ0(CMN_REG(0095), 0x00), > + REG_SEQ0(CMN_REG(0097), 0x02), > + REG_SEQ0(CMN_REG(0099), 0x04), > + REG_SEQ0(CMN_REG(009B), 0x00), > +}; > + > +static const struct reg_sequence hdtpx_common_sb_init_seq[] = { > + REG_SEQ0(SB_REG(0114), 0x00), > + REG_SEQ0(SB_REG(0115), 0x00), > + REG_SEQ0(SB_REG(0116), 0x00), > + REG_SEQ0(SB_REG(0117), 0x00), > +}; > + > +static const struct reg_sequence hdtpx_tmds_lntop_highbr_seq[] = { > + REG_SEQ0(LNTOP_REG(0201), 0x00), > + REG_SEQ0(LNTOP_REG(0202), 0x00), > + REG_SEQ0(LNTOP_REG(0203), 0x0f), > + REG_SEQ0(LNTOP_REG(0204), 0xff), > + REG_SEQ0(LNTOP_REG(0205), 0xff), > +}; > + > +static const struct reg_sequence hdtpx_tmds_lntop_lowbr_seq[] = { > + REG_SEQ0(LNTOP_REG(0201), 0x07), > + REG_SEQ0(LNTOP_REG(0202), 0xc1), > + REG_SEQ0(LNTOP_REG(0203), 0xf0), > + REG_SEQ0(LNTOP_REG(0204), 0x7c), > + REG_SEQ0(LNTOP_REG(0205), 0x1f), > +}; > + > +static const struct reg_sequence hdtpx_common_lane_init_seq[] = { > + REG_SEQ0(LANE_REG(0303), 0x0c), > + REG_SEQ0(LANE_REG(0307), 0x20), > + REG_SEQ0(LANE_REG(030A), 0x17), > + REG_SEQ0(LANE_REG(030B), 0x77), > + REG_SEQ0(LANE_REG(030C), 0x77), > + REG_SEQ0(LANE_REG(030D), 0x77), > + REG_SEQ0(LANE_REG(030E), 0x38), > + REG_SEQ0(LANE_REG(0310), 0x03), > + REG_SEQ0(LANE_REG(0311), 0x0f), > + REG_SEQ0(LANE_REG(0316), 0x02), > + REG_SEQ0(LANE_REG(031B), 0x01), > + REG_SEQ0(LANE_REG(031F), 0x15), > + REG_SEQ0(LANE_REG(0320), 0xa0), > + REG_SEQ0(LANE_REG(0403), 0x0c), > + REG_SEQ0(LANE_REG(0407), 0x20), > + REG_SEQ0(LANE_REG(040A), 0x17), > + REG_SEQ0(LANE_REG(040B), 0x77), > + REG_SEQ0(LANE_REG(040C), 0x77), > + REG_SEQ0(LANE_REG(040D), 0x77), > + REG_SEQ0(LANE_REG(040E), 0x38), > + REG_SEQ0(LANE_REG(0410), 0x03), > + REG_SEQ0(LANE_REG(0411), 0x0f), > + REG_SEQ0(LANE_REG(0416), 0x02), > + REG_SEQ0(LANE_REG(041B), 0x01), > + REG_SEQ0(LANE_REG(041F), 0x15), > + REG_SEQ0(LANE_REG(0420), 0xa0), > + REG_SEQ0(LANE_REG(0503), 0x0c), > + REG_SEQ0(LANE_REG(0507), 0x20), > + REG_SEQ0(LANE_REG(050A), 0x17), > + REG_SEQ0(LANE_REG(050B), 0x77), > + REG_SEQ0(LANE_REG(050C), 0x77), > + REG_SEQ0(LANE_REG(050D), 0x77), > + REG_SEQ0(LANE_REG(050E), 0x38), > + REG_SEQ0(LANE_REG(0510), 0x03), > + REG_SEQ0(LANE_REG(0511), 0x0f), > + REG_SEQ0(LANE_REG(0516), 0x02), > + REG_SEQ0(LANE_REG(051B), 0x01), > + REG_SEQ0(LANE_REG(051F), 0x15), > + REG_SEQ0(LANE_REG(0520), 0xa0), > + REG_SEQ0(LANE_REG(0603), 0x0c), > + REG_SEQ0(LANE_REG(0607), 0x20), > + REG_SEQ0(LANE_REG(060A), 0x17), > + REG_SEQ0(LANE_REG(060B), 0x77), > + REG_SEQ0(LANE_REG(060C), 0x77), > + REG_SEQ0(LANE_REG(060D), 0x77), > + REG_SEQ0(LANE_REG(060E), 0x38), > + REG_SEQ0(LANE_REG(0610), 0x03), > + REG_SEQ0(LANE_REG(0611), 0x0f), > + REG_SEQ0(LANE_REG(0616), 0x02), > + REG_SEQ0(LANE_REG(061B), 0x01), > + REG_SEQ0(LANE_REG(061F), 0x15), > + REG_SEQ0(LANE_REG(0620), 0xa0), > +}; > + > +static const struct reg_sequence hdtpx_tmds_lane_init_seq[] = { > + REG_SEQ0(LANE_REG(0312), 0x00), > + REG_SEQ0(LANE_REG(031E), 0x00), > + REG_SEQ0(LANE_REG(0412), 0x00), > + REG_SEQ0(LANE_REG(041E), 0x00), > + REG_SEQ0(LANE_REG(0512), 0x00), > + REG_SEQ0(LANE_REG(051E), 0x00), > + REG_SEQ0(LANE_REG(0612), 0x00), > + REG_SEQ0(LANE_REG(061E), 0x08), > + REG_SEQ0(LANE_REG(0303), 0x2f), > + REG_SEQ0(LANE_REG(0403), 0x2f), > + REG_SEQ0(LANE_REG(0503), 0x2f), > + REG_SEQ0(LANE_REG(0603), 0x2f), > + REG_SEQ0(LANE_REG(0305), 0x03), > + REG_SEQ0(LANE_REG(0405), 0x03), > + REG_SEQ0(LANE_REG(0505), 0x03), > + REG_SEQ0(LANE_REG(0605), 0x03), > + REG_SEQ0(LANE_REG(0306), 0x1c), > + REG_SEQ0(LANE_REG(0406), 0x1c), > + REG_SEQ0(LANE_REG(0506), 0x1c), > + REG_SEQ0(LANE_REG(0606), 0x1c), > +}; > + > +static bool rockchip_hdptx_phy_is_rw_reg(struct device *dev, unsigned int reg) > +{ > + switch (reg) { > + case 0x0000 ... 0x029c: > + case 0x0400 ... 0x04a4: > + case 0x0800 ... 0x08a4: > + case 0x0c00 ... 0x0cb4: > + case 0x1000 ... 0x10b4: > + case 0x1400 ... 0x14b4: > + case 0x1800 ... 0x18b4: > + return true; > + } > + > + return false; > +} > + > +static const struct regmap_config rockchip_hdptx_phy_regmap_config = { > + .reg_bits = 32, > + .reg_stride = 4, > + .val_bits = 32, > + .writeable_reg = rockchip_hdptx_phy_is_rw_reg, > + .readable_reg = rockchip_hdptx_phy_is_rw_reg, > + .fast_io = true, > + .max_register = 0x18b4, > +}; > + > +static int hdptx_write(struct rockchip_hdptx_phy *hdptx, u32 reg, u8 val) > +{ > + return regmap_write(hdptx->regmap, reg, val); > +} > + > +#define hdptx_multi_reg_write(hdptx, seq) \ > + regmap_multi_reg_write((hdptx)->regmap, seq, ARRAY_SIZE(seq)) > + > +static int hdptx_update_bits(struct rockchip_hdptx_phy *hdptx, u32 reg, > + u8 mask, u8 val) > +{ > + return regmap_update_bits(hdptx->regmap, reg, mask, val); > +} > + > +static int hdptx_grf_write(struct rockchip_hdptx_phy *hdptx, u32 reg, u32 val) > +{ > + return regmap_write(hdptx->grf, reg, val); > +} > + > +static u8 hdptx_grf_read(struct rockchip_hdptx_phy *hdptx, u32 reg) > +{ > + u32 val; > + > + regmap_read(hdptx->grf, reg, &val); > + > + return val; > +} why use wrappers, why not call regmap_ apis directly > + > +static void hdptx_pre_power_up(struct rockchip_hdptx_phy *hdptx) > +{ > + u32 val; > + > + reset_control_assert(hdptx->rsts[RST_APB].rstc); > + usleep_range(20, 25); > + reset_control_deassert(hdptx->rsts[RST_APB].rstc); > + > + reset_control_assert(hdptx->rsts[RST_LANE].rstc); > + reset_control_assert(hdptx->rsts[RST_CMN].rstc); > + reset_control_assert(hdptx->rsts[RST_INIT].rstc); > + > + val = (HDPTX_I_PLL_EN | HDPTX_I_BIAS_EN | HDPTX_I_BGR_EN) << 16; > + hdptx_grf_write(hdptx, GRF_HDPTX_CON0, val); > +} > + > +static int hdptx_post_enable_lane(struct rockchip_hdptx_phy *hdptx) > +{ > + u32 val; > + int ret; > + > + reset_control_deassert(hdptx->rsts[RST_LANE].rstc); > + > + val = (HDPTX_I_BIAS_EN | HDPTX_I_BGR_EN) << 16 | > + HDPTX_I_BIAS_EN | HDPTX_I_BGR_EN; > + hdptx_grf_write(hdptx, GRF_HDPTX_CON0, val); > + > + ret = regmap_read_poll_timeout(hdptx->grf, GRF_HDPTX_STATUS, val, > + (val & HDPTX_O_PHY_RDY) && > + (val & HDPTX_O_PLL_LOCK_DONE), > + 100, 5000); > + if (ret) { > + dev_err(hdptx->dev, "Failed to get PHY lane lock: %d\n", ret); > + return ret; > + } > + > + dev_dbg(hdptx->dev, "PHY lane locked\n"); > + > + return 0; > +} > + > +static int hdptx_post_enable_pll(struct rockchip_hdptx_phy *hdptx) > +{ > + u32 val; > + int ret; > + > + val = (HDPTX_I_BIAS_EN | HDPTX_I_BGR_EN) << 16 | > + HDPTX_I_BIAS_EN | HDPTX_I_BGR_EN; > + hdptx_grf_write(hdptx, GRF_HDPTX_CON0, val); > + > + usleep_range(10, 15); > + reset_control_deassert(hdptx->rsts[RST_INIT].rstc); > + > + usleep_range(10, 15); > + val = HDPTX_I_PLL_EN << 16 | HDPTX_I_PLL_EN; > + hdptx_grf_write(hdptx, GRF_HDPTX_CON0, val); > + > + usleep_range(10, 15); > + reset_control_deassert(hdptx->rsts[RST_CMN].rstc); > + > + ret = regmap_read_poll_timeout(hdptx->grf, GRF_HDPTX_STATUS, val, > + val & HDPTX_O_PHY_CLK_RDY, 20, 400); > + if (ret) { > + dev_err(hdptx->dev, "Failed to get PHY clk ready: %d\n", ret); > + return ret; > + } > + > + dev_dbg(hdptx->dev, "PHY clk ready\n"); > + > + return 0; > +} > + > +static void hdptx_phy_disable(struct rockchip_hdptx_phy *hdptx) > +{ > + u32 val; > + > + /* reset phy and apb, or phy locked flag may keep 1 */ > + reset_control_assert(hdptx->rsts[RST_PHY].rstc); > + usleep_range(20, 30); > + reset_control_deassert(hdptx->rsts[RST_PHY].rstc); > + > + reset_control_assert(hdptx->rsts[RST_APB].rstc); > + usleep_range(20, 30); > + reset_control_deassert(hdptx->rsts[RST_APB].rstc); > + > + hdptx_write(hdptx, LANE_REG(0300), 0x82); > + hdptx_write(hdptx, SB_REG(010F), 0xc1); > + hdptx_write(hdptx, SB_REG(0110), 0x1); > + hdptx_write(hdptx, LANE_REG(0301), 0x80); > + hdptx_write(hdptx, LANE_REG(0401), 0x80); > + hdptx_write(hdptx, LANE_REG(0501), 0x80); > + hdptx_write(hdptx, LANE_REG(0601), 0x80); > + > + reset_control_assert(hdptx->rsts[RST_LANE].rstc); > + reset_control_assert(hdptx->rsts[RST_CMN].rstc); > + reset_control_assert(hdptx->rsts[RST_INIT].rstc); > + > + val = (HDPTX_I_PLL_EN | HDPTX_I_BIAS_EN | HDPTX_I_BGR_EN) << 16; > + hdptx_grf_write(hdptx, GRF_HDPTX_CON0, val); > +} > + > +static bool hdptx_phy_clk_pll_calc(unsigned int data_rate, > + struct ropll_config *cfg) > +{ > + const unsigned int fout = data_rate / 2, fref = 24000; > + unsigned long k = 0, lc, k_sub, lc_sub; > + unsigned int fvco, sdc; > + u32 mdiv, sdiv, n = 8; > + > + for (sdiv = 16; sdiv >= 1; sdiv--) { > + if (sdiv % 2 && sdiv != 1) > + continue; > + > + fvco = fout * sdiv; > + > + if (fvco < 2000000 || fvco > 4000000) > + continue; > + > + mdiv = DIV_ROUND_UP(fvco, fref); > + if (mdiv < 20 || mdiv > 255) > + continue; > + > + if (fref * mdiv - fvco) { > + for (sdc = 264000; sdc <= 750000; sdc += fref) > + if (sdc * n > fref * mdiv) > + break; > + > + if (sdc > 750000) > + continue; > + > + rational_best_approximation(fref * mdiv - fvco, > + sdc / 16, > + GENMASK(6, 0), > + GENMASK(7, 0), > + &k, &lc); > + > + rational_best_approximation(sdc * n - fref * mdiv, > + sdc, > + GENMASK(6, 0), > + GENMASK(7, 0), > + &k_sub, &lc_sub); > + } > + > + break; > + } > + > + if (sdiv < 1) > + return false; > + > + if (cfg) { > + cfg->pms_mdiv = mdiv; > + cfg->pms_mdiv_afc = mdiv; > + cfg->pms_pdiv = 1; > + cfg->pms_refdiv = 1; > + cfg->pms_sdiv = sdiv - 1; > + > + cfg->sdm_en = k > 0 ? 1 : 0; > + if (cfg->sdm_en) { > + cfg->sdm_deno = lc; > + cfg->sdm_num_sign = 1; > + cfg->sdm_num = k; > + cfg->sdc_n = n - 3; > + cfg->sdc_num = k_sub; > + cfg->sdc_deno = lc_sub; > + } > + } > + > + return true; > +} > + > +static int hdptx_ropll_tmds_cmn_config(struct rockchip_hdptx_phy *hdptx, > + unsigned int rate) > +{ > + const struct ropll_config *cfg = NULL; > + struct ropll_config rc = {0}; > + int i; > + > + for (i = 0; i < ARRAY_SIZE(ropll_tmds_cfg); i++) > + if (rate == ropll_tmds_cfg[i].bit_rate) { > + cfg = &ropll_tmds_cfg[i]; > + break; > + } > + > + if (!cfg) { > + if (hdptx_phy_clk_pll_calc(rate, &rc)) { > + cfg = &rc; > + } else { > + dev_err(hdptx->dev, "%s cannot find pll cfg\n", __func__); > + return -EINVAL; > + } > + } > + > + dev_dbg(hdptx->dev, "mdiv=%u, sdiv=%u, sdm_en=%u, k_sign=%u, k=%u, lc=%u\n", > + cfg->pms_mdiv, cfg->pms_sdiv + 1, cfg->sdm_en, > + cfg->sdm_num_sign, cfg->sdm_num, cfg->sdm_deno); > + > + hdptx_pre_power_up(hdptx); > + > + reset_control_assert(hdptx->rsts[RST_ROPLL].rstc); > + usleep_range(20, 30); > + reset_control_deassert(hdptx->rsts[RST_ROPLL].rstc); > + > + hdptx_multi_reg_write(hdptx, hdtpx_common_cmn_init_seq); > + hdptx_multi_reg_write(hdptx, hdtpx_tmds_cmn_init_seq); > + > + hdptx_write(hdptx, CMN_REG(0051), cfg->pms_mdiv); > + hdptx_write(hdptx, CMN_REG(0055), cfg->pms_mdiv_afc); > + hdptx_write(hdptx, CMN_REG(0059), (cfg->pms_pdiv << 4) | cfg->pms_refdiv); > + hdptx_write(hdptx, CMN_REG(005A), cfg->pms_sdiv << 4); small case here as well pls > + > + hdptx_update_bits(hdptx, CMN_REG(005E), ROPLL_SDM_EN_MASK, > + FIELD_PREP(ROPLL_SDM_EN_MASK, cfg->sdm_en)); > + if (!cfg->sdm_en) > + hdptx_update_bits(hdptx, CMN_REG(005E), 0xf, 0); > + > + hdptx_update_bits(hdptx, CMN_REG(0064), ROPLL_SDM_NUM_SIGN_RBR_MASK, > + FIELD_PREP(ROPLL_SDM_NUM_SIGN_RBR_MASK, cfg->sdm_num_sign)); > + > + hdptx_write(hdptx, CMN_REG(0060), cfg->sdm_deno); > + hdptx_write(hdptx, CMN_REG(0065), cfg->sdm_num); > + > + hdptx_update_bits(hdptx, CMN_REG(0069), ROPLL_SDC_N_RBR_MASK, > + FIELD_PREP(ROPLL_SDC_N_RBR_MASK, cfg->sdc_n)); > + > + hdptx_write(hdptx, CMN_REG(006C), cfg->sdc_num); > + hdptx_write(hdptx, CMN_REG(0070), cfg->sdc_deno); > + > + hdptx_update_bits(hdptx, CMN_REG(0086), PLL_PCG_POSTDIV_SEL_MASK, > + FIELD_PREP(PLL_PCG_POSTDIV_SEL_MASK, cfg->pms_sdiv)); > + > + hdptx_update_bits(hdptx, CMN_REG(0086), PLL_PCG_CLK_EN, PLL_PCG_CLK_EN); > + > + return hdptx_post_enable_pll(hdptx); > +} > + > +static int hdptx_ropll_tmds_mode_config(struct rockchip_hdptx_phy *hdptx, > + unsigned int rate) > +{ > + int ret; > + > + if (!(hdptx_grf_read(hdptx, GRF_HDPTX_STATUS) & HDPTX_O_PLL_LOCK_DONE)) { > + ret = hdptx_ropll_tmds_cmn_config(hdptx, rate); > + if (ret) > + return ret; > + } > + > + hdptx_multi_reg_write(hdptx, hdtpx_common_sb_init_seq); > + > + hdptx_write(hdptx, LNTOP_REG(0200), 0x06); > + > + if (rate >= 3400000) { > + /* For 1/40 bitrate clk */ > + hdptx_multi_reg_write(hdptx, hdtpx_tmds_lntop_highbr_seq); > + } else { > + /* For 1/10 bitrate clk */ > + hdptx_multi_reg_write(hdptx, hdtpx_tmds_lntop_lowbr_seq); > + } > + > + hdptx_write(hdptx, LNTOP_REG(0206), 0x07); > + hdptx_write(hdptx, LNTOP_REG(0207), 0x0f); > + > + hdptx_multi_reg_write(hdptx, hdtpx_common_lane_init_seq); > + hdptx_multi_reg_write(hdptx, hdtpx_tmds_lane_init_seq); > + > + return hdptx_post_enable_lane(hdptx); > +} > + > +static int rockchip_hdptx_phy_power_on(struct phy *phy) > +{ > + struct rockchip_hdptx_phy *hdptx = phy_get_drvdata(phy); > + int ret, bus_width = phy_get_bus_width(hdptx->phy); > + /* > + * FIXME: Temporary workaround to pass pixel_clk_rate > + * from the HDMI bridge driver until phy_configure_opts_hdmi > + * becomes available in the PHY API. > + */ > + unsigned int rate = bus_width & 0xFFFFFFF; > + > + dev_dbg(hdptx->dev, "%s bus_width=%x rate=%u\n", > + __func__, bus_width, rate); > + > + ret = pm_runtime_resume_and_get(hdptx->dev); > + if (ret) { > + dev_err(hdptx->dev, "Failed to resume phy: %d\n", ret); > + return ret; > + } > + > + ret = hdptx_ropll_tmds_mode_config(hdptx, rate); > + if (ret) > + pm_runtime_put(hdptx->dev); > + > + return ret; > +} > + > +static int rockchip_hdptx_phy_power_off(struct phy *phy) > +{ > + struct rockchip_hdptx_phy *hdptx = phy_get_drvdata(phy); > + > + if (hdptx_grf_read(hdptx, GRF_HDPTX_STATUS) & HDPTX_O_PLL_LOCK_DONE) > + hdptx_phy_disable(hdptx); > + > + pm_runtime_put(hdptx->dev); > + > + return 0; > +} > + > +static const struct phy_ops rockchip_hdptx_phy_ops = { > + .power_on = rockchip_hdptx_phy_power_on, > + .power_off = rockchip_hdptx_phy_power_off, > + .owner = THIS_MODULE, > +}; > + > +static int rockchip_hdptx_phy_runtime_suspend(struct device *dev) > +{ > + struct rockchip_hdptx_phy *hdptx = dev_get_drvdata(dev); > + > + clk_bulk_disable_unprepare(hdptx->nr_clks, hdptx->clks); > + > + return 0; > +} > + > +static int rockchip_hdptx_phy_runtime_resume(struct device *dev) > +{ > + struct rockchip_hdptx_phy *hdptx = dev_get_drvdata(dev); > + int ret; > + > + ret = clk_bulk_prepare_enable(hdptx->nr_clks, hdptx->clks); > + if (ret) > + dev_err(hdptx->dev, "Failed to enable clocks: %d\n", ret); > + > + return ret; > +} > + > +static int rockchip_hdptx_phy_probe(struct platform_device *pdev) > +{ > + struct device *dev = &pdev->dev; > + struct rockchip_hdptx_phy *hdptx; > + struct phy_provider *phy_provider; > + void __iomem *regs; > + int ret; > + > + hdptx = devm_kzalloc(dev, sizeof(*hdptx), GFP_KERNEL); > + if (!hdptx) > + return -ENOMEM; > + > + hdptx->dev = dev; > + > + regs = devm_platform_ioremap_resource(pdev, 0); > + if (IS_ERR(regs)) > + return dev_err_probe(dev, PTR_ERR(regs), > + "Failed to ioremap resource\n"); > + > + ret = devm_clk_bulk_get_all(dev, &hdptx->clks); > + if (ret < 0) > + return dev_err_probe(dev, ret, "Failed to get clocks\n"); > + if (ret == 0) > + return dev_err_probe(dev, -EINVAL, "Missing clocks\n"); > + > + hdptx->nr_clks = ret; > + > + hdptx->regmap = devm_regmap_init_mmio(dev, regs, > + &rockchip_hdptx_phy_regmap_config); > + if (IS_ERR(hdptx->regmap)) > + return dev_err_probe(dev, PTR_ERR(hdptx->regmap), > + "Failed to init regmap\n"); > + > + hdptx->rsts[RST_PHY].id = "phy"; > + hdptx->rsts[RST_APB].id = "apb"; > + hdptx->rsts[RST_INIT].id = "init"; > + hdptx->rsts[RST_CMN].id = "cmn"; > + hdptx->rsts[RST_LANE].id = "lane"; > + hdptx->rsts[RST_ROPLL].id = "ropll"; > + hdptx->rsts[RST_LCPLL].id = "lcpll"; > + > + ret = devm_reset_control_bulk_get_exclusive(dev, RST_MAX, hdptx->rsts); > + if (ret) > + return dev_err_probe(dev, ret, "Failed to get resets\n"); > + > + hdptx->grf = syscon_regmap_lookup_by_phandle(dev->of_node, > + "rockchip,grf"); > + if (IS_ERR(hdptx->grf)) > + return dev_err_probe(dev, PTR_ERR(hdptx->grf), > + "Could not get GRF syscon\n"); > + > + hdptx->phy = devm_phy_create(dev, NULL, &rockchip_hdptx_phy_ops); > + if (IS_ERR(hdptx->phy)) > + return dev_err_probe(dev, PTR_ERR(hdptx->phy), > + "Failed to create HDMI PHY\n"); > + > + platform_set_drvdata(pdev, hdptx); > + phy_set_drvdata(hdptx->phy, hdptx); > + phy_set_bus_width(hdptx->phy, 8); > + > + ret = devm_pm_runtime_enable(dev); > + if (ret) > + return dev_err_probe(dev, ret, "Failed to enable runtime PM\n"); > + > + phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); > + if (IS_ERR(phy_provider)) > + return dev_err_probe(dev, PTR_ERR(phy_provider), > + "Failed to register PHY provider\n"); > + > + reset_control_deassert(hdptx->rsts[RST_APB].rstc); > + reset_control_deassert(hdptx->rsts[RST_CMN].rstc); > + reset_control_deassert(hdptx->rsts[RST_INIT].rstc); > + > + return 0; > +} > + > +static const struct dev_pm_ops rockchip_hdptx_phy_pm_ops = { > + RUNTIME_PM_OPS(rockchip_hdptx_phy_runtime_suspend, > + rockchip_hdptx_phy_runtime_resume, NULL) > +}; > + > +static const struct of_device_id rockchip_hdptx_phy_of_match[] = { > + { .compatible = "rockchip,rk3588-hdptx-phy", }, > + {} > +}; > +MODULE_DEVICE_TABLE(of, rockchip_hdptx_phy_of_match); > + > +static struct platform_driver rockchip_hdptx_phy_driver = { > + .probe = rockchip_hdptx_phy_probe, > + .driver = { > + .name = "rockchip-hdptx-phy", > + .pm = &rockchip_hdptx_phy_pm_ops, > + .of_match_table = rockchip_hdptx_phy_of_match, > + }, > +}; > +module_platform_driver(rockchip_hdptx_phy_driver); > + > +MODULE_AUTHOR("Algea Cao <algea.cao@rock-chips.com>"); > +MODULE_AUTHOR("Cristian Ciocaltea <cristian.ciocaltea@collabora.com>"); > +MODULE_DESCRIPTION("Samsung HDMI/eDP Transmitter Combo PHY Driver"); > +MODULE_LICENSE("GPL"); > > -- > 2.43.0
On 2/7/24 12:16, Vinod Koul wrote: > On 05-02-24, 13:24, Cristian Ciocaltea wrote: >> Add driver for the HDMI/eDP TX Combo PHY found on Rockchip RK3588 SoC. [...] >> +static const struct reg_sequence hdtpx_common_cmn_init_seq[] = { >> + REG_SEQ0(CMN_REG(0009), 0x0c), >> + REG_SEQ0(CMN_REG(000A), 0x83), >> + REG_SEQ0(CMN_REG(000B), 0x06), >> + REG_SEQ0(CMN_REG(000C), 0x20), >> + REG_SEQ0(CMN_REG(000D), 0xb8), >> + REG_SEQ0(CMN_REG(000E), 0x0f), >> + REG_SEQ0(CMN_REG(000F), 0x0f), > > Any reason for these to be mixed case, lets have lower case pls > everywhere These were initially part of the register name defines, as specified in the RK3588 Technical Reference Manual, e.g. HDPTXPHY_CMN_REG000A. But consistency is more important, I assume, hence I will do a lower case conversion. [...] >> +static int hdptx_write(struct rockchip_hdptx_phy *hdptx, u32 reg, u8 val) >> +{ >> + return regmap_write(hdptx->regmap, reg, val); >> +} >> + >> +#define hdptx_multi_reg_write(hdptx, seq) \ >> + regmap_multi_reg_write((hdptx)->regmap, seq, ARRAY_SIZE(seq)) >> + >> +static int hdptx_update_bits(struct rockchip_hdptx_phy *hdptx, u32 reg, >> + u8 mask, u8 val) >> +{ >> + return regmap_update_bits(hdptx->regmap, reg, mask, val); >> +} >> + >> +static int hdptx_grf_write(struct rockchip_hdptx_phy *hdptx, u32 reg, u32 val) >> +{ >> + return regmap_write(hdptx->grf, reg, val); >> +} >> + >> +static u8 hdptx_grf_read(struct rockchip_hdptx_phy *hdptx, u32 reg) >> +{ >> + u32 val; >> + >> + regmap_read(hdptx->grf, reg, &val); >> + >> + return val; >> +} > > why use wrappers, why not call regmap_ apis directly Agree, no real benefit, will drop them, except probably hdptx_multi_reg_write() for the extra savings. So I'd keep using that one if there's no strong reason against. [...] >> + hdptx_write(hdptx, CMN_REG(0059), (cfg->pms_pdiv << 4) | cfg->pms_refdiv); >> + hdptx_write(hdptx, CMN_REG(005A), cfg->pms_sdiv << 4); > > small case here as well pls Yes, will make sure to handle them all. Thanks for the review, Cristian
On 07-02-24, 14:39, Cristian Ciocaltea wrote: > On 2/7/24 12:16, Vinod Koul wrote: > > On 05-02-24, 13:24, Cristian Ciocaltea wrote: > >> +static u8 hdptx_grf_read(struct rockchip_hdptx_phy *hdptx, u32 reg) > >> +{ > >> + u32 val; > >> + > >> + regmap_read(hdptx->grf, reg, &val); > >> + > >> + return val; > >> +} > > > > why use wrappers, why not call regmap_ apis directly > > Agree, no real benefit, will drop them, except probably > hdptx_multi_reg_write() for the extra savings. That one is fine as there is good logic on the helper > So I'd keep using that one if there's no strong reason against. ok
Am Montag, 5. Februar 2024, 12:24:25 CET schrieb Cristian Ciocaltea: > Add driver for the HDMI/eDP TX Combo PHY found on Rockchip RK3588 SoC. > > The PHY is based on a Samsung IP block and supports HDMI 2.1 TMDS, FRL > and eDP links. The maximum data rate is 12Gbps (FRL), while the minimum > is 250Mbps (TMDS). > > Only the TMDS link is currently supported. > > Co-developed-by: Algea Cao <algea.cao@rock-chips.com> > Signed-off-by: Algea Cao <algea.cao@rock-chips.com> > Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com> on a rk3588-jaguar Tested-by: Heiko Stuebner <heiko@sntech.de>
On 2/8/24 10:00, Heiko Stübner wrote: > Am Montag, 5. Februar 2024, 12:24:25 CET schrieb Cristian Ciocaltea: >> Add driver for the HDMI/eDP TX Combo PHY found on Rockchip RK3588 SoC. >> >> The PHY is based on a Samsung IP block and supports HDMI 2.1 TMDS, FRL >> and eDP links. The maximum data rate is 12Gbps (FRL), while the minimum >> is 250Mbps (TMDS). >> >> Only the TMDS link is currently supported. >> >> Co-developed-by: Algea Cao <algea.cao@rock-chips.com> >> Signed-off-by: Algea Cao <algea.cao@rock-chips.com> >> Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com> > > on a rk3588-jaguar > Tested-by: Heiko Stuebner <heiko@sntech.de> Thanks for testing this! Will send v3 soon. Regards, Cristian
Hi Cristian, On Mon, 2024-02-05 at 13:24 +0200, Cristian Ciocaltea wrote: > + > +static bool hdptx_phy_clk_pll_calc(unsigned int data_rate, > + struct ropll_config *cfg) > +{ > + const unsigned int fout = data_rate / 2, fref = 24000; > + unsigned long k = 0, lc, k_sub, lc_sub; > + unsigned int fvco, sdc; > + u32 mdiv, sdiv, n = 8; > + > + for (sdiv = 16; sdiv >= 1; sdiv--) { > + if (sdiv % 2 && sdiv != 1) > + continue; > + > + fvco = fout * sdiv; > + > + if (fvco < 2000000 || fvco > 4000000) > + continue; > + What about adding a check to data_rate, maybe like if (fout > 0x0FFFFFFF) return false; or similar, before the for loop, to keep the multiplication safe? Right now it would be redundant, given that data_rate was, at some point, encoded in 28 bits within bus_width. But can prevent future pain, especially after changing to phy_configure_opts_hdmi. Luis
Hi Luis, On 2/12/24 18:44, Luis de Arquer wrote: > Hi Cristian, > > On Mon, 2024-02-05 at 13:24 +0200, Cristian Ciocaltea wrote: >> + >> +static bool hdptx_phy_clk_pll_calc(unsigned int data_rate, >> + struct ropll_config *cfg) >> +{ >> + const unsigned int fout = data_rate / 2, fref = 24000; >> + unsigned long k = 0, lc, k_sub, lc_sub; >> + unsigned int fvco, sdc; >> + u32 mdiv, sdiv, n = 8; >> + >> + for (sdiv = 16; sdiv >= 1; sdiv--) { >> + if (sdiv % 2 && sdiv != 1) >> + continue; >> + >> + fvco = fout * sdiv; >> + >> + if (fvco < 2000000 || fvco > 4000000) >> + continue; >> + > > What about adding a check to data_rate, maybe like > > if (fout > 0x0FFFFFFF) > return false; > > or similar, before the for loop, to keep the multiplication safe? > > Right now it would be redundant, given that data_rate was, at some > point, encoded in 28 bits within bus_width. But can prevent future pain, > especially after changing to phy_configure_opts_hdmi. Indeed, it makes sense to do the check, thanks for the heads up! I was almost ready to submit v3, so this arrived just in time. :-) Regards, Cristian
diff --git a/drivers/phy/rockchip/Kconfig b/drivers/phy/rockchip/Kconfig index 94360fc96a6f..a34f67bb7e61 100644 --- a/drivers/phy/rockchip/Kconfig +++ b/drivers/phy/rockchip/Kconfig @@ -83,6 +83,14 @@ config PHY_ROCKCHIP_PCIE help Enable this to support the Rockchip PCIe PHY. +config PHY_ROCKCHIP_SAMSUNG_HDPTX + tristate "Rockchip Samsung HDMI/eDP Combo PHY driver" + depends on (ARCH_ROCKCHIP || COMPILE_TEST) && OF + select GENERIC_PHY + help + Enable this to support the Rockchip HDMI/eDP Combo PHY + with Samsung IP block. + config PHY_ROCKCHIP_SNPS_PCIE3 tristate "Rockchip Snps PCIe3 PHY Driver" depends on (ARCH_ROCKCHIP && OF) || COMPILE_TEST diff --git a/drivers/phy/rockchip/Makefile b/drivers/phy/rockchip/Makefile index 7eab129230d1..3d911304e654 100644 --- a/drivers/phy/rockchip/Makefile +++ b/drivers/phy/rockchip/Makefile @@ -8,6 +8,7 @@ obj-$(CONFIG_PHY_ROCKCHIP_INNO_HDMI) += phy-rockchip-inno-hdmi.o obj-$(CONFIG_PHY_ROCKCHIP_INNO_USB2) += phy-rockchip-inno-usb2.o obj-$(CONFIG_PHY_ROCKCHIP_NANENG_COMBO_PHY) += phy-rockchip-naneng-combphy.o obj-$(CONFIG_PHY_ROCKCHIP_PCIE) += phy-rockchip-pcie.o +obj-$(CONFIG_PHY_ROCKCHIP_SAMSUNG_HDPTX) += phy-rockchip-samsung-hdptx.o obj-$(CONFIG_PHY_ROCKCHIP_SNPS_PCIE3) += phy-rockchip-snps-pcie3.o obj-$(CONFIG_PHY_ROCKCHIP_TYPEC) += phy-rockchip-typec.o obj-$(CONFIG_PHY_ROCKCHIP_USB) += phy-rockchip-usb.o diff --git a/drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c b/drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c new file mode 100644 index 000000000000..744bbe8280a8 --- /dev/null +++ b/drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c @@ -0,0 +1,1040 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (c) 2021-2022 Rockchip Electronics Co., Ltd. + * Copyright (c) 2024 Collabora Ltd. + * + * Author: Algea Cao <algea.cao@rock-chips.com> + * Author: Cristian Ciocaltea <cristian.ciocaltea@collabora.com> + */ +#include <linux/bitfield.h> +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/mfd/syscon.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/of_platform.h> +#include <linux/phy/phy.h> +#include <linux/platform_device.h> +#include <linux/rational.h> +#include <linux/regmap.h> +#include <linux/reset.h> + +#define GRF_HDPTX_CON0 0x00 +#define HDPTX_I_PLL_EN BIT(7) +#define HDPTX_I_BIAS_EN BIT(6) +#define HDPTX_I_BGR_EN BIT(5) +#define GRF_HDPTX_STATUS 0x80 +#define HDPTX_O_PLL_LOCK_DONE BIT(3) +#define HDPTX_O_PHY_CLK_RDY BIT(2) +#define HDPTX_O_PHY_RDY BIT(1) +#define HDPTX_O_SB_RDY BIT(0) + +#define HDTPX_REG(_n, _min, _max) \ + ( \ + BUILD_BUG_ON_ZERO((0x##_n) < (0x##_min)) + \ + BUILD_BUG_ON_ZERO((0x##_n) > (0x##_max)) + \ + ((0x##_n) * 4) \ + ) + +#define CMN_REG(n) HDTPX_REG(n, 0000, 00A7) +#define SB_REG(n) HDTPX_REG(n, 0100, 0129) +#define LNTOP_REG(n) HDTPX_REG(n, 0200, 0229) +#define LANE_REG(n) HDTPX_REG(n, 0300, 062D) + +/* CMN_REG(0008) */ +#define LCPLL_EN_MASK BIT(6) +#define LCPLL_LCVCO_MODE_EN_MASK BIT(4) +/* CMN_REG(001E) */ +#define LCPLL_PI_EN_MASK BIT(5) +#define LCPLL_100M_CLK_EN_MASK BIT(0) +/* CMN_REG(0025) */ +#define LCPLL_PMS_IQDIV_RSTN BIT(4) +/* CMN_REG(0028) */ +#define LCPLL_SDC_FRAC_EN BIT(2) +#define LCPLL_SDC_FRAC_RSTN BIT(0) +/* CMN_REG(002D) */ +#define LCPLL_SDC_N_MASK GENMASK(3, 1) +/* CMN_REG(002E) */ +#define LCPLL_SDC_NUMBERATOR_MASK GENMASK(5, 0) +/* CMN_REG(002F) */ +#define LCPLL_SDC_DENOMINATOR_MASK GENMASK(7, 2) +#define LCPLL_SDC_NDIV_RSTN BIT(0) +/* CMN_REG(003D) */ +#define ROPLL_LCVCO_EN BIT(4) +/* CMN_REG(004E) */ +#define ROPLL_PI_EN BIT(5) +/* CMN_REG(005C) */ +#define ROPLL_PMS_IQDIV_RSTN BIT(5) +/* CMN_REG(005E) */ +#define ROPLL_SDM_EN_MASK BIT(6) +#define ROPLL_SDM_FRAC_EN_RBR BIT(3) +#define ROPLL_SDM_FRAC_EN_HBR BIT(2) +#define ROPLL_SDM_FRAC_EN_HBR2 BIT(1) +#define ROPLL_SDM_FRAC_EN_HBR3 BIT(0) +/* CMN_REG(0064) */ +#define ROPLL_SDM_NUM_SIGN_RBR_MASK BIT(3) +/* CMN_REG(0069) */ +#define ROPLL_SDC_N_RBR_MASK GENMASK(2, 0) +/* CMN_REG(0074) */ +#define ROPLL_SDC_NDIV_RSTN BIT(2) +#define ROPLL_SSC_EN BIT(0) +/* CMN_REG(0081) */ +#define OVRD_PLL_CD_CLK_EN BIT(8) +#define PLL_CD_HSCLK_EAST_EN BIT(0) +/* CMN_REG(0086) */ +#define PLL_PCG_POSTDIV_SEL_MASK GENMASK(7, 4) +#define PLL_PCG_CLK_SEL_MASK GENMASK(3, 1) +#define PLL_PCG_CLK_EN BIT(0) +/* CMN_REG(0087) */ +#define PLL_FRL_MODE_EN BIT(3) +#define PLL_TX_HS_CLK_EN BIT(2) +/* CMN_REG(0089) */ +#define LCPLL_ALONE_MODE BIT(1) +/* CMN_REG(0097) */ +#define DIG_CLK_SEL BIT(1) +#define ROPLL_REF BIT(1) +#define LCPLL_REF 0 +/* CMN_REG(0099) */ +#define CMN_ROPLL_ALONE_MODE BIT(2) +#define ROPLL_ALONE_MODE BIT(2) +/* CMN_REG(009A) */ +#define HS_SPEED_SEL BIT(0) +#define DIV_10_CLOCK BIT(0) +/* CMN_REG(009B) */ +#define IS_SPEED_SEL BIT(4) +#define LINK_SYMBOL_CLOCK BIT(4) +#define LINK_SYMBOL_CLOCK1_2 0 + +/* SB_REG(0102) */ +#define OVRD_SB_RXTERM_EN_MASK BIT(5) +#define SB_RXTERM_EN_MASK BIT(4) +#define ANA_SB_RXTERM_OFFSP_MASK GENMASK(3, 0) +/* SB_REG(0103) */ +#define ANA_SB_RXTERM_OFFSN_MASK GENMASK(6, 3) +#define OVRD_SB_RX_RESCAL_DONE_MASK BIT(1) +#define SB_RX_RESCAL_DONE_MASK BIT(0) +/* SB_REG(0104) */ +#define OVRD_SB_EN_MASK BIT(5) +#define SB_EN_MASK BIT(4) +/* SB_REG(0105) */ +#define OVRD_SB_EARC_CMDC_EN_MASK BIT(6) +#define SB_EARC_CMDC_EN_MASK BIT(5) +#define ANA_SB_TX_HLVL_PROG_MASK GENMASK(2, 0) +/* SB_REG(0106) */ +#define ANA_SB_TX_LLVL_PROG_MASK GENMASK(6, 4) +/* SB_REG(0109) */ +#define ANA_SB_DMRX_AFC_DIV_RATIO_MASK GENMASK(2, 0) +/* SB_REG(010F) */ +#define OVRD_SB_VREG_EN_MASK BIT(7) +#define SB_VREG_EN_MASK BIT(6) +#define OVRD_SB_VREG_LPF_BYPASS_MASK BIT(5) +#define SB_VREG_LPF_BYPASS_MASK BIT(4) +#define ANA_SB_VREG_GAIN_CTRL_MASK GENMASK(3, 0) +/* SB_REG(0110) */ +#define ANA_SB_VREG_REF_SEL_MASK BIT(0) +/* SB_REG(0113) */ +#define SB_RX_RCAL_OPT_CODE_MASK GENMASK(5, 4) +#define SB_RX_RTERM_CTRL_MASK GENMASK(3, 0) +/* SB_REG(0114) */ +#define SB_TG_SB_EN_DELAY_TIME_MASK GENMASK(5, 3) +#define SB_TG_RXTERM_EN_DELAY_TIME_MASK GENMASK(2, 0) +/* SB_REG(0115) */ +#define SB_READY_DELAY_TIME_MASK GENMASK(5, 3) +#define SB_TG_OSC_EN_DELAY_TIME_MASK GENMASK(2, 0) +/* SB_REG(0116) */ +#define AFC_RSTN_DELAY_TIME_MASK GENMASK(6, 4) +/* SB_REG(0117) */ +#define FAST_PULSE_TIME_MASK GENMASK(3, 0) +/* SB_REG(011B) */ +#define SB_EARC_SIG_DET_BYPASS_MASK BIT(4) +#define SB_AFC_TOL_MASK GENMASK(3, 0) +/* SB_REG(011F) */ +#define SB_PWM_AFC_CTRL_MASK GENMASK(7, 2) +#define SB_RCAL_RSTN_MASK BIT(1) +/* SB_REG(0120) */ +#define SB_EARC_EN_MASK BIT(1) +#define SB_EARC_AFC_EN_MASK BIT(2) +/* SB_REG(0123) */ +#define OVRD_SB_READY_MASK BIT(5) +#define SB_READY_MASK BIT(4) + +/* LNTOP_REG(0200) */ +#define PROTOCOL_SEL BIT(2) +#define HDMI_MODE BIT(2) +#define HDMI_TMDS_FRL_SEL BIT(1) +/* LNTOP_REG(0206) */ +#define DATA_BUS_SEL BIT(0) +#define DATA_BUS_36_40 BIT(0) +/* LNTOP_REG(0207) */ +#define LANE_EN 0xf +#define ALL_LANE_EN 0xf + +/* LANE_REG(0312) */ +#define LN0_TX_SER_RATE_SEL_RBR BIT(5) +#define LN0_TX_SER_RATE_SEL_HBR BIT(4) +#define LN0_TX_SER_RATE_SEL_HBR2 BIT(3) +#define LN0_TX_SER_RATE_SEL_HBR3 BIT(2) +/* LANE_REG(0412) */ +#define LN1_TX_SER_RATE_SEL_RBR BIT(5) +#define LN1_TX_SER_RATE_SEL_HBR BIT(4) +#define LN1_TX_SER_RATE_SEL_HBR2 BIT(3) +#define LN1_TX_SER_RATE_SEL_HBR3 BIT(2) +/* LANE_REG(0512) */ +#define LN2_TX_SER_RATE_SEL_RBR BIT(5) +#define LN2_TX_SER_RATE_SEL_HBR BIT(4) +#define LN2_TX_SER_RATE_SEL_HBR2 BIT(3) +#define LN2_TX_SER_RATE_SEL_HBR3 BIT(2) +/* LANE_REG(0612) */ +#define LN3_TX_SER_RATE_SEL_RBR BIT(5) +#define LN3_TX_SER_RATE_SEL_HBR BIT(4) +#define LN3_TX_SER_RATE_SEL_HBR2 BIT(3) +#define LN3_TX_SER_RATE_SEL_HBR3 BIT(2) + +struct lcpll_config { + u32 bit_rate; + u8 lcvco_mode_en; + u8 pi_en; + u8 clk_en_100m; + u8 pms_mdiv; + u8 pms_mdiv_afc; + u8 pms_pdiv; + u8 pms_refdiv; + u8 pms_sdiv; + u8 pi_cdiv_rstn; + u8 pi_cdiv_sel; + u8 sdm_en; + u8 sdm_rstn; + u8 sdc_frac_en; + u8 sdc_rstn; + u8 sdm_deno; + u8 sdm_num_sign; + u8 sdm_num; + u8 sdc_n; + u8 sdc_n2; + u8 sdc_num; + u8 sdc_deno; + u8 sdc_ndiv_rstn; + u8 ssc_en; + u8 ssc_fm_dev; + u8 ssc_fm_freq; + u8 ssc_clk_div_sel; + u8 cd_tx_ser_rate_sel; +}; + +struct ropll_config { + u32 bit_rate; + u8 pms_mdiv; + u8 pms_mdiv_afc; + u8 pms_pdiv; + u8 pms_refdiv; + u8 pms_sdiv; + u8 pms_iqdiv_rstn; + u8 ref_clk_sel; + u8 sdm_en; + u8 sdm_rstn; + u8 sdc_frac_en; + u8 sdc_rstn; + u8 sdm_clk_div; + u8 sdm_deno; + u8 sdm_num_sign; + u8 sdm_num; + u8 sdc_n; + u8 sdc_num; + u8 sdc_deno; + u8 sdc_ndiv_rstn; + u8 ssc_en; + u8 ssc_fm_dev; + u8 ssc_fm_freq; + u8 ssc_clk_div_sel; + u8 ana_cpp_ctrl; + u8 ana_lpf_c_sel; + u8 cd_tx_ser_rate_sel; +}; + +enum rockchip_hdptx_reset { + RST_PHY = 0, + RST_APB, + RST_INIT, + RST_CMN, + RST_LANE, + RST_ROPLL, + RST_LCPLL, + RST_MAX +}; + +struct rockchip_hdptx_phy { + struct device *dev; + struct regmap *regmap; + struct regmap *grf; + + struct phy *phy; + struct phy_config *phy_cfg; + struct clk_bulk_data *clks; + int nr_clks; + struct reset_control_bulk_data rsts[RST_MAX]; +}; + +static const struct ropll_config ropll_tmds_cfg[] = { + { 5940000, 124, 124, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 62, 1, 16, 5, 0, + 1, 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, + { 3712500, 155, 155, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 62, 1, 16, 5, 0, + 1, 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, + { 2970000, 124, 124, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 62, 1, 16, 5, 0, + 1, 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, + { 1620000, 135, 135, 1, 1, 3, 1, 1, 0, 1, 1, 1, 1, 4, 0, 3, 5, 5, 0x10, + 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, + { 1856250, 155, 155, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 62, 1, 16, 5, 0, + 1, 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, + { 1540000, 193, 193, 1, 1, 5, 1, 1, 1, 1, 1, 1, 1, 193, 1, 32, 2, 1, + 1, 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, + { 1485000, 0x7b, 0x7b, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 4, 0, 3, 5, 5, + 0x10, 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, + { 1462500, 122, 122, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 244, 1, 16, 2, 1, 1, + 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, + { 1190000, 149, 149, 1, 1, 5, 1, 1, 1, 1, 1, 1, 1, 149, 1, 16, 2, 1, 1, + 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, + { 1065000, 89, 89, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 89, 1, 16, 1, 0, 1, + 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, + { 1080000, 135, 135, 1, 1, 5, 1, 1, 0, 1, 0, 1, 1, 0x9, 0, 0x05, 0, + 0x14, 0x18, 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, + { 855000, 214, 214, 1, 1, 11, 1, 1, 1, 1, 1, 1, 1, 214, 1, 16, 2, 1, + 1, 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, + { 835000, 105, 105, 1, 1, 5, 1, 1, 1, 1, 1, 1, 1, 42, 1, 16, 1, 0, + 1, 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, + { 928125, 155, 155, 1, 1, 7, 1, 1, 1, 1, 1, 1, 1, 62, 1, 16, 5, 0, + 1, 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, + { 742500, 124, 124, 1, 1, 7, 1, 1, 1, 1, 1, 1, 1, 62, 1, 16, 5, 0, + 1, 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, + { 650000, 162, 162, 1, 1, 11, 1, 1, 1, 1, 1, 1, 1, 54, 0, 16, 4, 1, + 1, 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, + { 337500, 0x70, 0x70, 1, 1, 0xf, 1, 1, 1, 1, 1, 1, 1, 0x2, 0, 0x01, 5, + 1, 1, 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, + { 400000, 100, 100, 1, 1, 11, 1, 1, 0, 1, 0, 1, 1, 0x9, 0, 0x05, 0, + 0x14, 0x18, 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, + { 270000, 0x5a, 0x5a, 1, 1, 0xf, 1, 1, 0, 1, 0, 1, 1, 0x9, 0, 0x05, 0, + 0x14, 0x18, 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, + { 251750, 84, 84, 1, 1, 0xf, 1, 1, 1, 1, 1, 1, 1, 168, 1, 16, 4, 1, 1, + 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, }, +}; + +static const struct reg_sequence hdtpx_common_cmn_init_seq[] = { + REG_SEQ0(CMN_REG(0009), 0x0c), + REG_SEQ0(CMN_REG(000A), 0x83), + REG_SEQ0(CMN_REG(000B), 0x06), + REG_SEQ0(CMN_REG(000C), 0x20), + REG_SEQ0(CMN_REG(000D), 0xb8), + REG_SEQ0(CMN_REG(000E), 0x0f), + REG_SEQ0(CMN_REG(000F), 0x0f), + REG_SEQ0(CMN_REG(0010), 0x04), + REG_SEQ0(CMN_REG(0011), 0x00), + REG_SEQ0(CMN_REG(0012), 0x26), + REG_SEQ0(CMN_REG(0013), 0x22), + REG_SEQ0(CMN_REG(0014), 0x24), + REG_SEQ0(CMN_REG(0015), 0x77), + REG_SEQ0(CMN_REG(0016), 0x08), + REG_SEQ0(CMN_REG(0017), 0x00), + REG_SEQ0(CMN_REG(0018), 0x04), + REG_SEQ0(CMN_REG(0019), 0x48), + REG_SEQ0(CMN_REG(001A), 0x01), + REG_SEQ0(CMN_REG(001B), 0x00), + REG_SEQ0(CMN_REG(001C), 0x01), + REG_SEQ0(CMN_REG(001D), 0x64), + REG_SEQ0(CMN_REG(001F), 0x00), + REG_SEQ0(CMN_REG(0026), 0x53), + REG_SEQ0(CMN_REG(0029), 0x01), + REG_SEQ0(CMN_REG(0030), 0x00), + REG_SEQ0(CMN_REG(0031), 0x20), + REG_SEQ0(CMN_REG(0032), 0x30), + REG_SEQ0(CMN_REG(0033), 0x0b), + REG_SEQ0(CMN_REG(0034), 0x23), + REG_SEQ0(CMN_REG(0035), 0x00), + REG_SEQ0(CMN_REG(0038), 0x00), + REG_SEQ0(CMN_REG(0039), 0x00), + REG_SEQ0(CMN_REG(003A), 0x00), + REG_SEQ0(CMN_REG(003B), 0x00), + REG_SEQ0(CMN_REG(003C), 0x80), + REG_SEQ0(CMN_REG(003E), 0x0c), + REG_SEQ0(CMN_REG(003F), 0x83), + REG_SEQ0(CMN_REG(0040), 0x06), + REG_SEQ0(CMN_REG(0041), 0x20), + REG_SEQ0(CMN_REG(0042), 0xb8), + REG_SEQ0(CMN_REG(0043), 0x00), + REG_SEQ0(CMN_REG(0044), 0x46), + REG_SEQ0(CMN_REG(0045), 0x24), + REG_SEQ0(CMN_REG(0046), 0xff), + REG_SEQ0(CMN_REG(0047), 0x00), + REG_SEQ0(CMN_REG(0048), 0x44), + REG_SEQ0(CMN_REG(0049), 0xfa), + REG_SEQ0(CMN_REG(004A), 0x08), + REG_SEQ0(CMN_REG(004B), 0x00), + REG_SEQ0(CMN_REG(004C), 0x01), + REG_SEQ0(CMN_REG(004D), 0x64), + REG_SEQ0(CMN_REG(004E), 0x14), + REG_SEQ0(CMN_REG(004F), 0x00), + REG_SEQ0(CMN_REG(0050), 0x00), + REG_SEQ0(CMN_REG(005D), 0x0c), + REG_SEQ0(CMN_REG(005F), 0x01), + REG_SEQ0(CMN_REG(006B), 0x04), + REG_SEQ0(CMN_REG(0073), 0x30), + REG_SEQ0(CMN_REG(0074), 0x00), + REG_SEQ0(CMN_REG(0075), 0x20), + REG_SEQ0(CMN_REG(0076), 0x30), + REG_SEQ0(CMN_REG(0077), 0x08), + REG_SEQ0(CMN_REG(0078), 0x0c), + REG_SEQ0(CMN_REG(0079), 0x00), + REG_SEQ0(CMN_REG(007B), 0x00), + REG_SEQ0(CMN_REG(007C), 0x00), + REG_SEQ0(CMN_REG(007D), 0x00), + REG_SEQ0(CMN_REG(007E), 0x00), + REG_SEQ0(CMN_REG(007F), 0x00), + REG_SEQ0(CMN_REG(0080), 0x00), + REG_SEQ0(CMN_REG(0081), 0x09), + REG_SEQ0(CMN_REG(0082), 0x04), + REG_SEQ0(CMN_REG(0083), 0x24), + REG_SEQ0(CMN_REG(0084), 0x20), + REG_SEQ0(CMN_REG(0085), 0x03), + REG_SEQ0(CMN_REG(0086), 0x01), + REG_SEQ0(CMN_REG(0087), 0x0c), + REG_SEQ0(CMN_REG(008A), 0x55), + REG_SEQ0(CMN_REG(008B), 0x25), + REG_SEQ0(CMN_REG(008C), 0x2c), + REG_SEQ0(CMN_REG(008D), 0x22), + REG_SEQ0(CMN_REG(008E), 0x14), + REG_SEQ0(CMN_REG(008F), 0x20), + REG_SEQ0(CMN_REG(0090), 0x00), + REG_SEQ0(CMN_REG(0091), 0x00), + REG_SEQ0(CMN_REG(0092), 0x00), + REG_SEQ0(CMN_REG(0093), 0x00), + REG_SEQ0(CMN_REG(009A), 0x11), + REG_SEQ0(CMN_REG(009B), 0x10), +}; + +static const struct reg_sequence hdtpx_tmds_cmn_init_seq[] = { + REG_SEQ0(CMN_REG(0008), 0x00), + REG_SEQ0(CMN_REG(0011), 0x01), + REG_SEQ0(CMN_REG(0017), 0x20), + REG_SEQ0(CMN_REG(001E), 0x14), + REG_SEQ0(CMN_REG(0020), 0x00), + REG_SEQ0(CMN_REG(0021), 0x00), + REG_SEQ0(CMN_REG(0022), 0x11), + REG_SEQ0(CMN_REG(0023), 0x00), + REG_SEQ0(CMN_REG(0024), 0x00), + REG_SEQ0(CMN_REG(0025), 0x53), + REG_SEQ0(CMN_REG(0026), 0x00), + REG_SEQ0(CMN_REG(0027), 0x00), + REG_SEQ0(CMN_REG(0028), 0x01), + REG_SEQ0(CMN_REG(002A), 0x00), + REG_SEQ0(CMN_REG(002B), 0x00), + REG_SEQ0(CMN_REG(002C), 0x00), + REG_SEQ0(CMN_REG(002D), 0x00), + REG_SEQ0(CMN_REG(002E), 0x04), + REG_SEQ0(CMN_REG(002F), 0x00), + REG_SEQ0(CMN_REG(0030), 0x20), + REG_SEQ0(CMN_REG(0031), 0x30), + REG_SEQ0(CMN_REG(0032), 0x0b), + REG_SEQ0(CMN_REG(0033), 0x23), + REG_SEQ0(CMN_REG(0034), 0x00), + REG_SEQ0(CMN_REG(003D), 0x40), + REG_SEQ0(CMN_REG(0042), 0x78), + REG_SEQ0(CMN_REG(004E), 0x34), + REG_SEQ0(CMN_REG(005C), 0x25), + REG_SEQ0(CMN_REG(005E), 0x4f), + REG_SEQ0(CMN_REG(0074), 0x04), + REG_SEQ0(CMN_REG(0081), 0x01), + REG_SEQ0(CMN_REG(0087), 0x04), + REG_SEQ0(CMN_REG(0089), 0x00), + REG_SEQ0(CMN_REG(0095), 0x00), + REG_SEQ0(CMN_REG(0097), 0x02), + REG_SEQ0(CMN_REG(0099), 0x04), + REG_SEQ0(CMN_REG(009B), 0x00), +}; + +static const struct reg_sequence hdtpx_common_sb_init_seq[] = { + REG_SEQ0(SB_REG(0114), 0x00), + REG_SEQ0(SB_REG(0115), 0x00), + REG_SEQ0(SB_REG(0116), 0x00), + REG_SEQ0(SB_REG(0117), 0x00), +}; + +static const struct reg_sequence hdtpx_tmds_lntop_highbr_seq[] = { + REG_SEQ0(LNTOP_REG(0201), 0x00), + REG_SEQ0(LNTOP_REG(0202), 0x00), + REG_SEQ0(LNTOP_REG(0203), 0x0f), + REG_SEQ0(LNTOP_REG(0204), 0xff), + REG_SEQ0(LNTOP_REG(0205), 0xff), +}; + +static const struct reg_sequence hdtpx_tmds_lntop_lowbr_seq[] = { + REG_SEQ0(LNTOP_REG(0201), 0x07), + REG_SEQ0(LNTOP_REG(0202), 0xc1), + REG_SEQ0(LNTOP_REG(0203), 0xf0), + REG_SEQ0(LNTOP_REG(0204), 0x7c), + REG_SEQ0(LNTOP_REG(0205), 0x1f), +}; + +static const struct reg_sequence hdtpx_common_lane_init_seq[] = { + REG_SEQ0(LANE_REG(0303), 0x0c), + REG_SEQ0(LANE_REG(0307), 0x20), + REG_SEQ0(LANE_REG(030A), 0x17), + REG_SEQ0(LANE_REG(030B), 0x77), + REG_SEQ0(LANE_REG(030C), 0x77), + REG_SEQ0(LANE_REG(030D), 0x77), + REG_SEQ0(LANE_REG(030E), 0x38), + REG_SEQ0(LANE_REG(0310), 0x03), + REG_SEQ0(LANE_REG(0311), 0x0f), + REG_SEQ0(LANE_REG(0316), 0x02), + REG_SEQ0(LANE_REG(031B), 0x01), + REG_SEQ0(LANE_REG(031F), 0x15), + REG_SEQ0(LANE_REG(0320), 0xa0), + REG_SEQ0(LANE_REG(0403), 0x0c), + REG_SEQ0(LANE_REG(0407), 0x20), + REG_SEQ0(LANE_REG(040A), 0x17), + REG_SEQ0(LANE_REG(040B), 0x77), + REG_SEQ0(LANE_REG(040C), 0x77), + REG_SEQ0(LANE_REG(040D), 0x77), + REG_SEQ0(LANE_REG(040E), 0x38), + REG_SEQ0(LANE_REG(0410), 0x03), + REG_SEQ0(LANE_REG(0411), 0x0f), + REG_SEQ0(LANE_REG(0416), 0x02), + REG_SEQ0(LANE_REG(041B), 0x01), + REG_SEQ0(LANE_REG(041F), 0x15), + REG_SEQ0(LANE_REG(0420), 0xa0), + REG_SEQ0(LANE_REG(0503), 0x0c), + REG_SEQ0(LANE_REG(0507), 0x20), + REG_SEQ0(LANE_REG(050A), 0x17), + REG_SEQ0(LANE_REG(050B), 0x77), + REG_SEQ0(LANE_REG(050C), 0x77), + REG_SEQ0(LANE_REG(050D), 0x77), + REG_SEQ0(LANE_REG(050E), 0x38), + REG_SEQ0(LANE_REG(0510), 0x03), + REG_SEQ0(LANE_REG(0511), 0x0f), + REG_SEQ0(LANE_REG(0516), 0x02), + REG_SEQ0(LANE_REG(051B), 0x01), + REG_SEQ0(LANE_REG(051F), 0x15), + REG_SEQ0(LANE_REG(0520), 0xa0), + REG_SEQ0(LANE_REG(0603), 0x0c), + REG_SEQ0(LANE_REG(0607), 0x20), + REG_SEQ0(LANE_REG(060A), 0x17), + REG_SEQ0(LANE_REG(060B), 0x77), + REG_SEQ0(LANE_REG(060C), 0x77), + REG_SEQ0(LANE_REG(060D), 0x77), + REG_SEQ0(LANE_REG(060E), 0x38), + REG_SEQ0(LANE_REG(0610), 0x03), + REG_SEQ0(LANE_REG(0611), 0x0f), + REG_SEQ0(LANE_REG(0616), 0x02), + REG_SEQ0(LANE_REG(061B), 0x01), + REG_SEQ0(LANE_REG(061F), 0x15), + REG_SEQ0(LANE_REG(0620), 0xa0), +}; + +static const struct reg_sequence hdtpx_tmds_lane_init_seq[] = { + REG_SEQ0(LANE_REG(0312), 0x00), + REG_SEQ0(LANE_REG(031E), 0x00), + REG_SEQ0(LANE_REG(0412), 0x00), + REG_SEQ0(LANE_REG(041E), 0x00), + REG_SEQ0(LANE_REG(0512), 0x00), + REG_SEQ0(LANE_REG(051E), 0x00), + REG_SEQ0(LANE_REG(0612), 0x00), + REG_SEQ0(LANE_REG(061E), 0x08), + REG_SEQ0(LANE_REG(0303), 0x2f), + REG_SEQ0(LANE_REG(0403), 0x2f), + REG_SEQ0(LANE_REG(0503), 0x2f), + REG_SEQ0(LANE_REG(0603), 0x2f), + REG_SEQ0(LANE_REG(0305), 0x03), + REG_SEQ0(LANE_REG(0405), 0x03), + REG_SEQ0(LANE_REG(0505), 0x03), + REG_SEQ0(LANE_REG(0605), 0x03), + REG_SEQ0(LANE_REG(0306), 0x1c), + REG_SEQ0(LANE_REG(0406), 0x1c), + REG_SEQ0(LANE_REG(0506), 0x1c), + REG_SEQ0(LANE_REG(0606), 0x1c), +}; + +static bool rockchip_hdptx_phy_is_rw_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case 0x0000 ... 0x029c: + case 0x0400 ... 0x04a4: + case 0x0800 ... 0x08a4: + case 0x0c00 ... 0x0cb4: + case 0x1000 ... 0x10b4: + case 0x1400 ... 0x14b4: + case 0x1800 ... 0x18b4: + return true; + } + + return false; +} + +static const struct regmap_config rockchip_hdptx_phy_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + .writeable_reg = rockchip_hdptx_phy_is_rw_reg, + .readable_reg = rockchip_hdptx_phy_is_rw_reg, + .fast_io = true, + .max_register = 0x18b4, +}; + +static int hdptx_write(struct rockchip_hdptx_phy *hdptx, u32 reg, u8 val) +{ + return regmap_write(hdptx->regmap, reg, val); +} + +#define hdptx_multi_reg_write(hdptx, seq) \ + regmap_multi_reg_write((hdptx)->regmap, seq, ARRAY_SIZE(seq)) + +static int hdptx_update_bits(struct rockchip_hdptx_phy *hdptx, u32 reg, + u8 mask, u8 val) +{ + return regmap_update_bits(hdptx->regmap, reg, mask, val); +} + +static int hdptx_grf_write(struct rockchip_hdptx_phy *hdptx, u32 reg, u32 val) +{ + return regmap_write(hdptx->grf, reg, val); +} + +static u8 hdptx_grf_read(struct rockchip_hdptx_phy *hdptx, u32 reg) +{ + u32 val; + + regmap_read(hdptx->grf, reg, &val); + + return val; +} + +static void hdptx_pre_power_up(struct rockchip_hdptx_phy *hdptx) +{ + u32 val; + + reset_control_assert(hdptx->rsts[RST_APB].rstc); + usleep_range(20, 25); + reset_control_deassert(hdptx->rsts[RST_APB].rstc); + + reset_control_assert(hdptx->rsts[RST_LANE].rstc); + reset_control_assert(hdptx->rsts[RST_CMN].rstc); + reset_control_assert(hdptx->rsts[RST_INIT].rstc); + + val = (HDPTX_I_PLL_EN | HDPTX_I_BIAS_EN | HDPTX_I_BGR_EN) << 16; + hdptx_grf_write(hdptx, GRF_HDPTX_CON0, val); +} + +static int hdptx_post_enable_lane(struct rockchip_hdptx_phy *hdptx) +{ + u32 val; + int ret; + + reset_control_deassert(hdptx->rsts[RST_LANE].rstc); + + val = (HDPTX_I_BIAS_EN | HDPTX_I_BGR_EN) << 16 | + HDPTX_I_BIAS_EN | HDPTX_I_BGR_EN; + hdptx_grf_write(hdptx, GRF_HDPTX_CON0, val); + + ret = regmap_read_poll_timeout(hdptx->grf, GRF_HDPTX_STATUS, val, + (val & HDPTX_O_PHY_RDY) && + (val & HDPTX_O_PLL_LOCK_DONE), + 100, 5000); + if (ret) { + dev_err(hdptx->dev, "Failed to get PHY lane lock: %d\n", ret); + return ret; + } + + dev_dbg(hdptx->dev, "PHY lane locked\n"); + + return 0; +} + +static int hdptx_post_enable_pll(struct rockchip_hdptx_phy *hdptx) +{ + u32 val; + int ret; + + val = (HDPTX_I_BIAS_EN | HDPTX_I_BGR_EN) << 16 | + HDPTX_I_BIAS_EN | HDPTX_I_BGR_EN; + hdptx_grf_write(hdptx, GRF_HDPTX_CON0, val); + + usleep_range(10, 15); + reset_control_deassert(hdptx->rsts[RST_INIT].rstc); + + usleep_range(10, 15); + val = HDPTX_I_PLL_EN << 16 | HDPTX_I_PLL_EN; + hdptx_grf_write(hdptx, GRF_HDPTX_CON0, val); + + usleep_range(10, 15); + reset_control_deassert(hdptx->rsts[RST_CMN].rstc); + + ret = regmap_read_poll_timeout(hdptx->grf, GRF_HDPTX_STATUS, val, + val & HDPTX_O_PHY_CLK_RDY, 20, 400); + if (ret) { + dev_err(hdptx->dev, "Failed to get PHY clk ready: %d\n", ret); + return ret; + } + + dev_dbg(hdptx->dev, "PHY clk ready\n"); + + return 0; +} + +static void hdptx_phy_disable(struct rockchip_hdptx_phy *hdptx) +{ + u32 val; + + /* reset phy and apb, or phy locked flag may keep 1 */ + reset_control_assert(hdptx->rsts[RST_PHY].rstc); + usleep_range(20, 30); + reset_control_deassert(hdptx->rsts[RST_PHY].rstc); + + reset_control_assert(hdptx->rsts[RST_APB].rstc); + usleep_range(20, 30); + reset_control_deassert(hdptx->rsts[RST_APB].rstc); + + hdptx_write(hdptx, LANE_REG(0300), 0x82); + hdptx_write(hdptx, SB_REG(010F), 0xc1); + hdptx_write(hdptx, SB_REG(0110), 0x1); + hdptx_write(hdptx, LANE_REG(0301), 0x80); + hdptx_write(hdptx, LANE_REG(0401), 0x80); + hdptx_write(hdptx, LANE_REG(0501), 0x80); + hdptx_write(hdptx, LANE_REG(0601), 0x80); + + reset_control_assert(hdptx->rsts[RST_LANE].rstc); + reset_control_assert(hdptx->rsts[RST_CMN].rstc); + reset_control_assert(hdptx->rsts[RST_INIT].rstc); + + val = (HDPTX_I_PLL_EN | HDPTX_I_BIAS_EN | HDPTX_I_BGR_EN) << 16; + hdptx_grf_write(hdptx, GRF_HDPTX_CON0, val); +} + +static bool hdptx_phy_clk_pll_calc(unsigned int data_rate, + struct ropll_config *cfg) +{ + const unsigned int fout = data_rate / 2, fref = 24000; + unsigned long k = 0, lc, k_sub, lc_sub; + unsigned int fvco, sdc; + u32 mdiv, sdiv, n = 8; + + for (sdiv = 16; sdiv >= 1; sdiv--) { + if (sdiv % 2 && sdiv != 1) + continue; + + fvco = fout * sdiv; + + if (fvco < 2000000 || fvco > 4000000) + continue; + + mdiv = DIV_ROUND_UP(fvco, fref); + if (mdiv < 20 || mdiv > 255) + continue; + + if (fref * mdiv - fvco) { + for (sdc = 264000; sdc <= 750000; sdc += fref) + if (sdc * n > fref * mdiv) + break; + + if (sdc > 750000) + continue; + + rational_best_approximation(fref * mdiv - fvco, + sdc / 16, + GENMASK(6, 0), + GENMASK(7, 0), + &k, &lc); + + rational_best_approximation(sdc * n - fref * mdiv, + sdc, + GENMASK(6, 0), + GENMASK(7, 0), + &k_sub, &lc_sub); + } + + break; + } + + if (sdiv < 1) + return false; + + if (cfg) { + cfg->pms_mdiv = mdiv; + cfg->pms_mdiv_afc = mdiv; + cfg->pms_pdiv = 1; + cfg->pms_refdiv = 1; + cfg->pms_sdiv = sdiv - 1; + + cfg->sdm_en = k > 0 ? 1 : 0; + if (cfg->sdm_en) { + cfg->sdm_deno = lc; + cfg->sdm_num_sign = 1; + cfg->sdm_num = k; + cfg->sdc_n = n - 3; + cfg->sdc_num = k_sub; + cfg->sdc_deno = lc_sub; + } + } + + return true; +} + +static int hdptx_ropll_tmds_cmn_config(struct rockchip_hdptx_phy *hdptx, + unsigned int rate) +{ + const struct ropll_config *cfg = NULL; + struct ropll_config rc = {0}; + int i; + + for (i = 0; i < ARRAY_SIZE(ropll_tmds_cfg); i++) + if (rate == ropll_tmds_cfg[i].bit_rate) { + cfg = &ropll_tmds_cfg[i]; + break; + } + + if (!cfg) { + if (hdptx_phy_clk_pll_calc(rate, &rc)) { + cfg = &rc; + } else { + dev_err(hdptx->dev, "%s cannot find pll cfg\n", __func__); + return -EINVAL; + } + } + + dev_dbg(hdptx->dev, "mdiv=%u, sdiv=%u, sdm_en=%u, k_sign=%u, k=%u, lc=%u\n", + cfg->pms_mdiv, cfg->pms_sdiv + 1, cfg->sdm_en, + cfg->sdm_num_sign, cfg->sdm_num, cfg->sdm_deno); + + hdptx_pre_power_up(hdptx); + + reset_control_assert(hdptx->rsts[RST_ROPLL].rstc); + usleep_range(20, 30); + reset_control_deassert(hdptx->rsts[RST_ROPLL].rstc); + + hdptx_multi_reg_write(hdptx, hdtpx_common_cmn_init_seq); + hdptx_multi_reg_write(hdptx, hdtpx_tmds_cmn_init_seq); + + hdptx_write(hdptx, CMN_REG(0051), cfg->pms_mdiv); + hdptx_write(hdptx, CMN_REG(0055), cfg->pms_mdiv_afc); + hdptx_write(hdptx, CMN_REG(0059), (cfg->pms_pdiv << 4) | cfg->pms_refdiv); + hdptx_write(hdptx, CMN_REG(005A), cfg->pms_sdiv << 4); + + hdptx_update_bits(hdptx, CMN_REG(005E), ROPLL_SDM_EN_MASK, + FIELD_PREP(ROPLL_SDM_EN_MASK, cfg->sdm_en)); + if (!cfg->sdm_en) + hdptx_update_bits(hdptx, CMN_REG(005E), 0xf, 0); + + hdptx_update_bits(hdptx, CMN_REG(0064), ROPLL_SDM_NUM_SIGN_RBR_MASK, + FIELD_PREP(ROPLL_SDM_NUM_SIGN_RBR_MASK, cfg->sdm_num_sign)); + + hdptx_write(hdptx, CMN_REG(0060), cfg->sdm_deno); + hdptx_write(hdptx, CMN_REG(0065), cfg->sdm_num); + + hdptx_update_bits(hdptx, CMN_REG(0069), ROPLL_SDC_N_RBR_MASK, + FIELD_PREP(ROPLL_SDC_N_RBR_MASK, cfg->sdc_n)); + + hdptx_write(hdptx, CMN_REG(006C), cfg->sdc_num); + hdptx_write(hdptx, CMN_REG(0070), cfg->sdc_deno); + + hdptx_update_bits(hdptx, CMN_REG(0086), PLL_PCG_POSTDIV_SEL_MASK, + FIELD_PREP(PLL_PCG_POSTDIV_SEL_MASK, cfg->pms_sdiv)); + + hdptx_update_bits(hdptx, CMN_REG(0086), PLL_PCG_CLK_EN, PLL_PCG_CLK_EN); + + return hdptx_post_enable_pll(hdptx); +} + +static int hdptx_ropll_tmds_mode_config(struct rockchip_hdptx_phy *hdptx, + unsigned int rate) +{ + int ret; + + if (!(hdptx_grf_read(hdptx, GRF_HDPTX_STATUS) & HDPTX_O_PLL_LOCK_DONE)) { + ret = hdptx_ropll_tmds_cmn_config(hdptx, rate); + if (ret) + return ret; + } + + hdptx_multi_reg_write(hdptx, hdtpx_common_sb_init_seq); + + hdptx_write(hdptx, LNTOP_REG(0200), 0x06); + + if (rate >= 3400000) { + /* For 1/40 bitrate clk */ + hdptx_multi_reg_write(hdptx, hdtpx_tmds_lntop_highbr_seq); + } else { + /* For 1/10 bitrate clk */ + hdptx_multi_reg_write(hdptx, hdtpx_tmds_lntop_lowbr_seq); + } + + hdptx_write(hdptx, LNTOP_REG(0206), 0x07); + hdptx_write(hdptx, LNTOP_REG(0207), 0x0f); + + hdptx_multi_reg_write(hdptx, hdtpx_common_lane_init_seq); + hdptx_multi_reg_write(hdptx, hdtpx_tmds_lane_init_seq); + + return hdptx_post_enable_lane(hdptx); +} + +static int rockchip_hdptx_phy_power_on(struct phy *phy) +{ + struct rockchip_hdptx_phy *hdptx = phy_get_drvdata(phy); + int ret, bus_width = phy_get_bus_width(hdptx->phy); + /* + * FIXME: Temporary workaround to pass pixel_clk_rate + * from the HDMI bridge driver until phy_configure_opts_hdmi + * becomes available in the PHY API. + */ + unsigned int rate = bus_width & 0xFFFFFFF; + + dev_dbg(hdptx->dev, "%s bus_width=%x rate=%u\n", + __func__, bus_width, rate); + + ret = pm_runtime_resume_and_get(hdptx->dev); + if (ret) { + dev_err(hdptx->dev, "Failed to resume phy: %d\n", ret); + return ret; + } + + ret = hdptx_ropll_tmds_mode_config(hdptx, rate); + if (ret) + pm_runtime_put(hdptx->dev); + + return ret; +} + +static int rockchip_hdptx_phy_power_off(struct phy *phy) +{ + struct rockchip_hdptx_phy *hdptx = phy_get_drvdata(phy); + + if (hdptx_grf_read(hdptx, GRF_HDPTX_STATUS) & HDPTX_O_PLL_LOCK_DONE) + hdptx_phy_disable(hdptx); + + pm_runtime_put(hdptx->dev); + + return 0; +} + +static const struct phy_ops rockchip_hdptx_phy_ops = { + .power_on = rockchip_hdptx_phy_power_on, + .power_off = rockchip_hdptx_phy_power_off, + .owner = THIS_MODULE, +}; + +static int rockchip_hdptx_phy_runtime_suspend(struct device *dev) +{ + struct rockchip_hdptx_phy *hdptx = dev_get_drvdata(dev); + + clk_bulk_disable_unprepare(hdptx->nr_clks, hdptx->clks); + + return 0; +} + +static int rockchip_hdptx_phy_runtime_resume(struct device *dev) +{ + struct rockchip_hdptx_phy *hdptx = dev_get_drvdata(dev); + int ret; + + ret = clk_bulk_prepare_enable(hdptx->nr_clks, hdptx->clks); + if (ret) + dev_err(hdptx->dev, "Failed to enable clocks: %d\n", ret); + + return ret; +} + +static int rockchip_hdptx_phy_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct rockchip_hdptx_phy *hdptx; + struct phy_provider *phy_provider; + void __iomem *regs; + int ret; + + hdptx = devm_kzalloc(dev, sizeof(*hdptx), GFP_KERNEL); + if (!hdptx) + return -ENOMEM; + + hdptx->dev = dev; + + regs = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(regs)) + return dev_err_probe(dev, PTR_ERR(regs), + "Failed to ioremap resource\n"); + + ret = devm_clk_bulk_get_all(dev, &hdptx->clks); + if (ret < 0) + return dev_err_probe(dev, ret, "Failed to get clocks\n"); + if (ret == 0) + return dev_err_probe(dev, -EINVAL, "Missing clocks\n"); + + hdptx->nr_clks = ret; + + hdptx->regmap = devm_regmap_init_mmio(dev, regs, + &rockchip_hdptx_phy_regmap_config); + if (IS_ERR(hdptx->regmap)) + return dev_err_probe(dev, PTR_ERR(hdptx->regmap), + "Failed to init regmap\n"); + + hdptx->rsts[RST_PHY].id = "phy"; + hdptx->rsts[RST_APB].id = "apb"; + hdptx->rsts[RST_INIT].id = "init"; + hdptx->rsts[RST_CMN].id = "cmn"; + hdptx->rsts[RST_LANE].id = "lane"; + hdptx->rsts[RST_ROPLL].id = "ropll"; + hdptx->rsts[RST_LCPLL].id = "lcpll"; + + ret = devm_reset_control_bulk_get_exclusive(dev, RST_MAX, hdptx->rsts); + if (ret) + return dev_err_probe(dev, ret, "Failed to get resets\n"); + + hdptx->grf = syscon_regmap_lookup_by_phandle(dev->of_node, + "rockchip,grf"); + if (IS_ERR(hdptx->grf)) + return dev_err_probe(dev, PTR_ERR(hdptx->grf), + "Could not get GRF syscon\n"); + + hdptx->phy = devm_phy_create(dev, NULL, &rockchip_hdptx_phy_ops); + if (IS_ERR(hdptx->phy)) + return dev_err_probe(dev, PTR_ERR(hdptx->phy), + "Failed to create HDMI PHY\n"); + + platform_set_drvdata(pdev, hdptx); + phy_set_drvdata(hdptx->phy, hdptx); + phy_set_bus_width(hdptx->phy, 8); + + ret = devm_pm_runtime_enable(dev); + if (ret) + return dev_err_probe(dev, ret, "Failed to enable runtime PM\n"); + + phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); + if (IS_ERR(phy_provider)) + return dev_err_probe(dev, PTR_ERR(phy_provider), + "Failed to register PHY provider\n"); + + reset_control_deassert(hdptx->rsts[RST_APB].rstc); + reset_control_deassert(hdptx->rsts[RST_CMN].rstc); + reset_control_deassert(hdptx->rsts[RST_INIT].rstc); + + return 0; +} + +static const struct dev_pm_ops rockchip_hdptx_phy_pm_ops = { + RUNTIME_PM_OPS(rockchip_hdptx_phy_runtime_suspend, + rockchip_hdptx_phy_runtime_resume, NULL) +}; + +static const struct of_device_id rockchip_hdptx_phy_of_match[] = { + { .compatible = "rockchip,rk3588-hdptx-phy", }, + {} +}; +MODULE_DEVICE_TABLE(of, rockchip_hdptx_phy_of_match); + +static struct platform_driver rockchip_hdptx_phy_driver = { + .probe = rockchip_hdptx_phy_probe, + .driver = { + .name = "rockchip-hdptx-phy", + .pm = &rockchip_hdptx_phy_pm_ops, + .of_match_table = rockchip_hdptx_phy_of_match, + }, +}; +module_platform_driver(rockchip_hdptx_phy_driver); + +MODULE_AUTHOR("Algea Cao <algea.cao@rock-chips.com>"); +MODULE_AUTHOR("Cristian Ciocaltea <cristian.ciocaltea@collabora.com>"); +MODULE_DESCRIPTION("Samsung HDMI/eDP Transmitter Combo PHY Driver"); +MODULE_LICENSE("GPL");