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linux-loongson/drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c
Linus Torvalds d12ed2b7e1 phy-for-6.16 
- New Support
   - Qualcomm IPQ5424 qusb2 support, IPQ5018 uniphy-pcie driver
   - Rockchip usb2 support for RK3562, RK3036 usb2 phy support
   - Samsung exynos2200 eusb2 phy support and driver refactoring for this
     support, exynos7870 USBDRD support
   - Mediatek MT7988 xs-phy support
   - Broadcom BCM74110 usb phy support
   - Renesas RZ/V2H(P) usb2 phy support
 
 - Updates
   - Freescale phy rate claculation updates, i.MX95 tuning support
   - Better error handling for amlogic pcie phy
   - Rockchip color depth configuration and management support
   - Yaml binding conversion for RK3399 Type-C and PCIe Phy
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Merge tag 'phy-for-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy

Pull phy updates from Vinod Koul:
 "As usual featuring couple of new driver and bunch of new device
  support and some driver changes to Freescale, rockchip driver along
  with couple of yaml binding conversions.

  New Support:
   - Qualcomm IPQ5424 qusb2 support, IPQ5018 uniphy-pcie driver
   - Rockchip usb2 support for RK3562, RK3036 usb2 phy support
   - Samsung exynos2200 eusb2 phy support and driver refactoring for
     this support, exynos7870 USBDRD support
   - Mediatek MT7988 xs-phy support
   - Broadcom BCM74110 usb phy support
   - Renesas RZ/V2H(P) usb2 phy support

  Updates:
   - Freescale phy rate claculation updates, i.MX95 tuning support
   - Better error handling for amlogic pcie phy
   - Rockchip color depth configuration and management support
   - Yaml binding conversion for RK3399 Type-C and PCIe Phy"

* tag 'phy-for-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy: (77 commits)
  phy: tegra: p2u: Broaden architecture dependency
  phy: rockchip: inno-usb2: Add usb2 phy support for rk3562
  dt-bindings: phy: rockchip,inno-usb2phy: add rk3562
  phy: rockchip: inno-usb2: add phy definition for rk3036
  dt-bindings: phy: rockchip,inno-usb2phy: add rk3036 compatible
  phy: freescale: fsl-samsung-hdmi: Improve LUT search for best clock
  phy: freescale: fsl-samsung-hdmi: Refactor finding PHY settings
  phy: freescale: fsl-samsung-hdmi: Rename phy_clk_round_rate
  phy: renesas: phy-rcar-gen3-usb2: Add USB2.0 PHY support for RZ/V2H(P)
  phy: renesas: phy-rcar-gen3-usb2: Sort compatible entries by SoC part number
  dt-bindings: phy: renesas,usb2-phy: Document RZ/V2H(P) SoC
  dt-bindings: phy: renesas,usb2-phy: Add clock constraint for RZ/G2L family
  phy: exynos5-usbdrd: support Exynos USBDRD 3.2 4nm controller
  phy: phy-snps-eusb2: add support for exynos2200
  phy: phy-snps-eusb2: refactor reference clock init
  phy: phy-snps-eusb2: make reset control optional
  phy: phy-snps-eusb2: make repeater optional
  phy: phy-snps-eusb2: split phy init code
  phy: phy-snps-eusb2: refactor constructs names
  phy: move phy-qcom-snps-eusb2 out of its vendor sub-directory
  ...
2025-06-05 08:20:21 -07:00

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// 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/clk-provider.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/pm_runtime.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 HDPTX_MODE_SEL BIT(0)
#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 OVRD_LCPLL_EN_MASK BIT(7)
#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_MASK BIT(4)
/* CMN_REG(0028) */
#define LCPLL_SDC_FRAC_EN_MASK BIT(2)
#define LCPLL_SDC_FRAC_RSTN_MASK 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_MASK BIT(0)
/* CMN_REG(003c) */
#define ANA_LCPLL_RESERVED7_MASK BIT(7)
/* CMN_REG(003d) */
#define OVRD_ROPLL_EN_MASK BIT(7)
#define ROPLL_EN_MASK BIT(6)
#define ROPLL_LCVCO_EN_MASK BIT(4)
/* CMN_REG(0046) */
#define ROPLL_ANA_CPP_CTRL_COARSE_MASK GENMASK(7, 4)
#define ROPLL_ANA_CPP_CTRL_FINE_MASK GENMASK(3, 0)
/* CMN_REG(0047) */
#define ROPLL_ANA_LPF_C_SEL_COARSE_MASK GENMASK(5, 3)
#define ROPLL_ANA_LPF_C_SEL_FINE_MASK GENMASK(2, 0)
/* CMN_REG(004e) */
#define ROPLL_PI_EN_MASK BIT(5)
/* CMN_REG(0051) */
#define ROPLL_PMS_MDIV_MASK GENMASK(7, 0)
/* CMN_REG(0055) */
#define ROPLL_PMS_MDIV_AFC_MASK GENMASK(7, 0)
/* CMN_REG(0059) */
#define ANA_ROPLL_PMS_PDIV_MASK GENMASK(7, 4)
#define ANA_ROPLL_PMS_REFDIV_MASK GENMASK(3, 0)
/* CMN_REG(005a) */
#define ROPLL_PMS_SDIV_RBR_MASK GENMASK(7, 4)
#define ROPLL_PMS_SDIV_HBR_MASK GENMASK(3, 0)
/* CMN_REG(005b) */
#define ROPLL_PMS_SDIV_HBR2_MASK GENMASK(7, 4)
/* CMN_REG(005c) */
#define ROPLL_PMS_IQDIV_RSTN_MASK BIT(5)
/* CMN_REG(005e) */
#define ROPLL_SDM_EN_MASK BIT(6)
#define OVRD_ROPLL_SDM_RSTN_MASK BIT(5)
#define ROPLL_SDM_RSTN_MASK BIT(4)
#define ROPLL_SDC_FRAC_EN_RBR_MASK BIT(3)
#define ROPLL_SDC_FRAC_EN_HBR_MASK BIT(2)
#define ROPLL_SDC_FRAC_EN_HBR2_MASK BIT(1)
#define ROPLL_SDM_FRAC_EN_HBR3_MASK BIT(0)
/* CMN_REG(005f) */
#define OVRD_ROPLL_SDC_RSTN_MASK BIT(5)
#define ROPLL_SDC_RSTN_MASK BIT(4)
/* CMN_REG(0060) */
#define ROPLL_SDM_DENOMINATOR_MASK GENMASK(7, 0)
/* CMN_REG(0064) */
#define ROPLL_SDM_NUM_SIGN_RBR_MASK BIT(3)
#define ROPLL_SDM_NUM_SIGN_HBR_MASK BIT(2)
#define ROPLL_SDM_NUM_SIGN_HBR2_MASK BIT(1)
/* CMN_REG(0065) */
#define ROPLL_SDM_NUM_MASK GENMASK(7, 0)
/* CMN_REG(0069) */
#define ROPLL_SDC_N_RBR_MASK GENMASK(2, 0)
/* CMN_REG(006a) */
#define ROPLL_SDC_N_HBR_MASK GENMASK(5, 3)
#define ROPLL_SDC_N_HBR2_MASK GENMASK(2, 0)
/* CMN_REG(006b) */
#define ROPLL_SDC_N_HBR3_MASK GENMASK(3, 1)
/* CMN_REG(006c) */
#define ROPLL_SDC_NUM_MASK GENMASK(5, 0)
/* cmn_reg0070 */
#define ROPLL_SDC_DENO_MASK GENMASK(5, 0)
/* CMN_REG(0074) */
#define OVRD_ROPLL_SDC_NDIV_RSTN_MASK BIT(3)
#define ROPLL_SDC_NDIV_RSTN_MASK BIT(2)
#define OVRD_ROPLL_SSC_EN_MASK BIT(1)
#define ROPLL_SSC_EN_MASK BIT(0)
/* CMN_REG(0075) */
#define ANA_ROPLL_SSC_FM_DEVIATION_MASK GENMASK(5, 0)
/* CMN_REG(0076) */
#define ANA_ROPLL_SSC_FM_FREQ_MASK GENMASK(6, 2)
/* CMN_REG(0077) */
#define ANA_ROPLL_SSC_CLK_DIV_SEL_MASK GENMASK(6, 3)
/* CMN_REG(0081) */
#define OVRD_PLL_CD_CLK_EN_MASK BIT(8)
#define ANA_PLL_CD_TX_SER_RATE_SEL_MASK BIT(3)
#define ANA_PLL_CD_HSCLK_WEST_EN_MASK BIT(1)
#define ANA_PLL_CD_HSCLK_EAST_EN_MASK BIT(0)
/* CMN_REG(0082) */
#define ANA_PLL_CD_VREG_GAIN_CTRL_MASK GENMASK(3, 0)
/* CMN_REG(0083) */
#define ANA_PLL_CD_VREG_ICTRL_MASK GENMASK(6, 5)
/* CMN_REG(0084) */
#define PLL_LCRO_CLK_SEL_MASK BIT(5)
/* CMN_REG(0085) */
#define ANA_PLL_SYNC_LOSS_DET_MODE_MASK GENMASK(1, 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_MASK BIT(0)
/* CMN_REG(0087) */
#define ANA_PLL_FRL_MODE_EN_MASK BIT(3)
#define ANA_PLL_TX_HS_CLK_EN_MASK BIT(2)
/* CMN_REG(0089) */
#define LCPLL_ALONE_MODE_MASK BIT(1)
/* CMN_REG(0095) */
#define DP_TX_LINK_BW_MASK GENMASK(1, 0)
/* CMN_REG(0097) */
#define DIG_CLK_SEL_MASK BIT(1)
#define LCPLL_REF BIT(1)
#define ROPLL_REF 0
/* CMN_REG(0099) */
#define SSC_EN_MASK GENMASK(7, 6)
#define CMN_ROPLL_ALONE_MODE_MASK BIT(2)
#define ROPLL_ALONE_MODE BIT(2)
/* CMN_REG(009a) */
#define HS_SPEED_SEL_MASK BIT(0)
#define DIV_10_CLOCK BIT(0)
/* CMN_REG(009b) */
#define LS_SPEED_SEL_MASK 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)
#define OVRD_SB_AUX_EN_MASK BIT(1)
#define SB_AUX_EN_MASK BIT(0)
/* 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(010d) */
#define ANA_SB_DMRX_LPBK_DATA_MASK BIT(4)
/* 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_OUT_SEL_MASK BIT(1)
#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(0118) */
#define SB_TG_EARC_DMRX_RECVRD_CLK_CNT_MASK GENMASK(7, 0)
/* SB_REG(011a) */
#define SB_TG_CNT_RUN_NO_7_0_MASK GENMASK(7, 0)
/* SB_REG(011b) */
#define SB_EARC_SIG_DET_BYPASS_MASK BIT(4)
#define SB_AFC_TOL_MASK GENMASK(3, 0)
/* SB_REG(011c) */
#define SB_AFC_STB_NUM_MASK GENMASK(3, 0)
/* SB_REG(011d) */
#define SB_TG_OSC_CNT_MIN_MASK GENMASK(7, 0)
/* SB_REG(011e) */
#define SB_TG_OSC_CNT_MAX_MASK GENMASK(7, 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_AUX_EN_IN_MASK BIT(7)
#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_MASK BIT(2)
#define HDMI_MODE BIT(2)
#define HDMI_TMDS_FRL_SEL BIT(1)
/* LNTOP_REG(0206) */
#define DATA_BUS_WIDTH_MASK GENMASK(2, 1)
#define DATA_BUS_WIDTH_SEL_MASK BIT(0)
#define DATA_BUS_36_40 BIT(0)
/* LNTOP_REG(0207) */
#define LANE_EN_MASK 0xf
#define ALL_LANE_EN 0xf
/* LANE_REG(0301) */
#define OVRD_LN_TX_DRV_EI_EN_MASK BIT(7)
#define LN_TX_DRV_EI_EN_MASK BIT(6)
/* LANE_REG(0303) */
#define OVRD_LN_TX_DRV_LVL_CTRL_MASK BIT(5)
#define LN_TX_DRV_LVL_CTRL_MASK GENMASK(4, 0)
/* LANE_REG(0304) */
#define OVRD_LN_TX_DRV_POST_LVL_CTRL_MASK BIT(4)
#define LN_TX_DRV_POST_LVL_CTRL_MASK GENMASK(3, 0)
/* LANE_REG(0305) */
#define OVRD_LN_TX_DRV_PRE_LVL_CTRL_MASK BIT(6)
#define LN_TX_DRV_PRE_LVL_CTRL_MASK GENMASK(5, 2)
/* LANE_REG(0306) */
#define LN_ANA_TX_DRV_IDRV_IDN_CTRL_MASK GENMASK(7, 5)
#define LN_ANA_TX_DRV_IDRV_IUP_CTRL_MASK GENMASK(4, 2)
#define LN_ANA_TX_DRV_ACCDRV_EN_MASK BIT(0)
/* LANE_REG(0307) */
#define LN_ANA_TX_DRV_ACCDRV_POL_SEL_MASK BIT(6)
#define LN_ANA_TX_DRV_ACCDRV_CTRL_MASK GENMASK(5, 3)
/* LANE_REG(030a) */
#define LN_ANA_TX_JEQ_EN_MASK BIT(4)
#define LN_TX_JEQ_EVEN_CTRL_RBR_MASK GENMASK(3, 0)
/* LANE_REG(030b) */
#define LN_TX_JEQ_EVEN_CTRL_HBR_MASK GENMASK(7, 4)
#define LN_TX_JEQ_EVEN_CTRL_HBR2_MASK GENMASK(3, 0)
/* LANE_REG(030c) */
#define LN_TX_JEQ_ODD_CTRL_RBR_MASK GENMASK(3, 0)
/* LANE_REG(030d) */
#define LN_TX_JEQ_ODD_CTRL_HBR_MASK GENMASK(7, 4)
#define LN_TX_JEQ_ODD_CTRL_HBR2_MASK GENMASK(3, 0)
/* LANE_REG(0310) */
#define LN_ANA_TX_SYNC_LOSS_DET_MODE_MASK GENMASK(1, 0)
/* LANE_REG(0311) */
#define LN_TX_SER_40BIT_EN_RBR_MASK BIT(3)
#define LN_TX_SER_40BIT_EN_HBR_MASK BIT(2)
#define LN_TX_SER_40BIT_EN_HBR2_MASK BIT(1)
/* LANE_REG(0312) */
#define LN0_TX_SER_RATE_SEL_RBR_MASK BIT(5)
#define LN0_TX_SER_RATE_SEL_HBR_MASK BIT(4)
#define LN0_TX_SER_RATE_SEL_HBR2_MASK BIT(3)
#define LN0_TX_SER_RATE_SEL_HBR3_MASK BIT(2)
/* LANE_REG(0316) */
#define LN_ANA_TX_SER_VREG_GAIN_CTRL_MASK GENMASK(3, 0)
/* LANE_REG(031B) */
#define LN_ANA_TX_RESERVED_MASK GENMASK(7, 0)
/* LANE_REG(031e) */
#define LN_POLARITY_INV_MASK BIT(2)
#define LN_LANE_MODE_MASK BIT(1)
/* LANE_REG(0412) */
#define LN1_TX_SER_RATE_SEL_RBR_MASK BIT(5)
#define LN1_TX_SER_RATE_SEL_HBR_MASK BIT(4)
#define LN1_TX_SER_RATE_SEL_HBR2_MASK BIT(3)
#define LN1_TX_SER_RATE_SEL_HBR3_MASK BIT(2)
/* LANE_REG(0512) */
#define LN2_TX_SER_RATE_SEL_RBR_MASK BIT(5)
#define LN2_TX_SER_RATE_SEL_HBR_MASK BIT(4)
#define LN2_TX_SER_RATE_SEL_HBR2_MASK BIT(3)
#define LN2_TX_SER_RATE_SEL_HBR3_MASK BIT(2)
/* LANE_REG(0612) */
#define LN3_TX_SER_RATE_SEL_RBR_MASK BIT(5)
#define LN3_TX_SER_RATE_SEL_HBR_MASK BIT(4)
#define LN3_TX_SER_RATE_SEL_HBR2_MASK BIT(3)
#define LN3_TX_SER_RATE_SEL_HBR3_MASK BIT(2)
#define HDMI14_MAX_RATE 340000000
#define HDMI20_MAX_RATE 600000000
enum dp_link_rate {
DP_BW_RBR,
DP_BW_HBR,
DP_BW_HBR2,
};
struct ropll_config {
unsigned long long 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;
};
struct tx_drv_ctrl {
u8 tx_drv_lvl_ctrl;
u8 tx_drv_post_lvl_ctrl;
u8 ana_tx_drv_idrv_idn_ctrl;
u8 ana_tx_drv_idrv_iup_ctrl;
u8 ana_tx_drv_accdrv_en;
u8 ana_tx_drv_accdrv_ctrl;
u8 tx_drv_pre_lvl_ctrl;
u8 ana_tx_jeq_en;
u8 tx_jeq_even_ctrl;
u8 tx_jeq_odd_ctrl;
};
enum rk_hdptx_reset {
RST_APB = 0,
RST_INIT,
RST_CMN,
RST_LANE,
RST_MAX
};
#define MAX_HDPTX_PHY_NUM 2
struct rk_hdptx_phy_cfg {
unsigned int num_phys;
unsigned int phy_ids[MAX_HDPTX_PHY_NUM];
};
struct rk_hdptx_phy {
struct device *dev;
struct regmap *regmap;
struct regmap *grf;
int phy_id;
struct phy *phy;
struct phy_configure_opts_hdmi hdmi_cfg;
struct clk_bulk_data *clks;
int nr_clks;
struct reset_control_bulk_data rsts[RST_MAX];
/* clk provider */
struct clk_hw hw;
unsigned long hw_rate;
bool restrict_rate_change;
atomic_t usage_count;
/* used for dp mode */
unsigned int link_rate;
unsigned int lanes;
};
static const struct ropll_config ropll_tmds_cfg[] = {
{ 594000000ULL, 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, },
{ 371250000ULL, 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, },
{ 297000000ULL, 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, },
{ 162000000ULL, 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, },
{ 185625000ULL, 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, },
{ 154000000ULL, 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, },
{ 148500000ULL, 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, },
{ 146250000ULL, 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, },
{ 119000000ULL, 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, },
{ 106500000ULL, 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, },
{ 108000000ULL, 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, },
{ 85500000ULL, 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, },
{ 83500000ULL, 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, },
{ 92812500ULL, 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, },
{ 74250000ULL, 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, },
{ 65000000ULL, 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, },
{ 50250000ULL, 84, 84, 1, 1, 7, 1, 1, 1, 1, 1, 1, 1, 11, 1, 4, 5,
4, 11, 1, 0, 0x20, 0x0c, 1, 0x0e, 0, 0, },
{ 33750000ULL, 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, },
{ 40000000ULL, 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, },
{ 27000000ULL, 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, },
{ 25175000ULL, 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 rk_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 rk_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 rk_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 rk_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 rk_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 rk_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 rk_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 struct tx_drv_ctrl tx_drv_ctrl_rbr[4][4] = {
/* voltage swing 0, pre-emphasis 0->3 */
{
{ 0x2, 0x0, 0x4, 0x6, 0x0, 0x4, 0x1, 0x1, 0x7, 0x7 },
{ 0x4, 0x3, 0x4, 0x6, 0x0, 0x4, 0x0, 0x1, 0x7, 0x7 },
{ 0x7, 0x6, 0x4, 0x6, 0x0, 0x4, 0x0, 0x1, 0x7, 0x7 },
{ 0xd, 0xc, 0x7, 0x7, 0x1, 0x7, 0x0, 0x1, 0x7, 0x7 },
},
/* voltage swing 1, pre-emphasis 0->2 */
{
{ 0x4, 0x0, 0x4, 0x6, 0x0, 0x4, 0x1, 0x1, 0x7, 0x7 },
{ 0x9, 0x5, 0x4, 0x6, 0x0, 0x4, 0x0, 0x1, 0x7, 0x7 },
{ 0xc, 0x8, 0x7, 0x7, 0x1, 0x7, 0x0, 0x1, 0x7, 0x7 },
},
/* voltage swing 2, pre-emphasis 0->1 */
{
{ 0x8, 0x0, 0x4, 0x6, 0x0, 0x4, 0x1, 0x1, 0x7, 0x7 },
{ 0xc, 0x5, 0x7, 0x7, 0x1, 0x7, 0x0, 0x1, 0x7, 0x7 },
},
/* voltage swing 3, pre-emphasis 0 */
{
{ 0xb, 0x0, 0x7, 0x7, 0x1, 0x4, 0x1, 0x1, 0x7, 0x7 },
}
};
static struct tx_drv_ctrl tx_drv_ctrl_hbr[4][4] = {
/* voltage swing 0, pre-emphasis 0->3 */
{
{ 0x2, 0x0, 0x4, 0x6, 0x0, 0x4, 0x1, 0x1, 0x7, 0x7 },
{ 0x5, 0x4, 0x4, 0x6, 0x0, 0x4, 0x0, 0x1, 0x7, 0x7 },
{ 0x9, 0x8, 0x4, 0x6, 0x0, 0x4, 0x0, 0x1, 0x7, 0x7 },
{ 0xd, 0xc, 0x7, 0x7, 0x1, 0x7, 0x0, 0x1, 0x7, 0x7 },
},
/* voltage swing 1, pre-emphasis 0->2 */
{
{ 0x6, 0x1, 0x4, 0x6, 0x0, 0x4, 0x1, 0x1, 0x7, 0x7 },
{ 0xa, 0x6, 0x4, 0x6, 0x0, 0x4, 0x0, 0x1, 0x7, 0x7 },
{ 0xc, 0x8, 0x7, 0x7, 0x1, 0x7, 0x0, 0x1, 0x7, 0x7 },
},
/* voltage swing 2, pre-emphasis 0->1 */
{
{ 0x9, 0x1, 0x4, 0x6, 0x0, 0x4, 0x1, 0x1, 0x7, 0x7 },
{ 0xd, 0x6, 0x7, 0x7, 0x1, 0x7, 0x0, 0x1, 0x7, 0x7 },
},
/* voltage swing 3, pre-emphasis 0 */
{
{ 0xc, 0x1, 0x7, 0x7, 0x1, 0x4, 0x1, 0x1, 0x7, 0x7 },
}
};
static struct tx_drv_ctrl tx_drv_ctrl_hbr2[4][4] = {
/* voltage swing 0, pre-emphasis 0->3 */
{
{ 0x2, 0x1, 0x4, 0x6, 0x0, 0x4, 0x0, 0x1, 0x7, 0x7 },
{ 0x5, 0x4, 0x4, 0x6, 0x0, 0x4, 0x0, 0x1, 0x7, 0x7 },
{ 0x9, 0x8, 0x4, 0x6, 0x1, 0x4, 0x0, 0x1, 0x7, 0x7 },
{ 0xd, 0xc, 0x7, 0x7, 0x1, 0x7, 0x0, 0x1, 0x7, 0x7 },
},
/* voltage swing 1, pre-emphasis 0->2 */
{
{ 0x6, 0x1, 0x4, 0x6, 0x0, 0x4, 0x1, 0x1, 0x7, 0x7 },
{ 0xb, 0x7, 0x4, 0x6, 0x0, 0x4, 0x0, 0x1, 0x7, 0x7 },
{ 0xd, 0x9, 0x7, 0x7, 0x1, 0x7, 0x0, 0x1, 0x7, 0x7 },
},
/* voltage swing 2, pre-emphasis 0->1 */
{
{ 0x8, 0x1, 0x4, 0x6, 0x0, 0x4, 0x1, 0x1, 0x7, 0x7 },
{ 0xc, 0x6, 0x7, 0x7, 0x1, 0x7, 0x0, 0x1, 0x7, 0x7 },
},
/* voltage swing 3, pre-emphasis 0 */
{
{ 0xb, 0x0, 0x7, 0x7, 0x1, 0x4, 0x1, 0x1, 0x7, 0x7 },
}
};
static bool rk_hdptx_phy_is_rw_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case 0x0000 ... 0x029c: /* CMN Register */
case 0x0400 ... 0x04a4: /* Sideband Register */
case 0x0800 ... 0x08a4: /* Lane Top Register */
case 0x0c00 ... 0x0cb4: /* Lane 0 Register */
case 0x1000 ... 0x10b4: /* Lane 1 Register */
case 0x1400 ... 0x14b4: /* Lane 2 Register */
case 0x1800 ... 0x18b4: /* Lane 3 Register */
return true;
}
return false;
}
static const struct regmap_config rk_hdptx_phy_regmap_config = {
.reg_bits = 32,
.reg_stride = 4,
.val_bits = 32,
.writeable_reg = rk_hdptx_phy_is_rw_reg,
.readable_reg = rk_hdptx_phy_is_rw_reg,
.fast_io = true,
.max_register = 0x18b4,
};
#define rk_hdptx_multi_reg_write(hdptx, seq) \
regmap_multi_reg_write((hdptx)->regmap, seq, ARRAY_SIZE(seq))
static void rk_hdptx_pre_power_up(struct rk_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;
regmap_write(hdptx->grf, GRF_HDPTX_CON0, val);
}
static int rk_hdptx_post_enable_lane(struct rk_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;
regmap_write(hdptx->grf, 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 rk_hdptx_post_enable_pll(struct rk_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;
regmap_write(hdptx->grf, 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;
regmap_write(hdptx->grf, 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 rk_hdptx_phy_disable(struct rk_hdptx_phy *hdptx)
{
u32 val;
reset_control_assert(hdptx->rsts[RST_APB].rstc);
usleep_range(20, 30);
reset_control_deassert(hdptx->rsts[RST_APB].rstc);
regmap_write(hdptx->regmap, LANE_REG(0300), 0x82);
regmap_write(hdptx->regmap, SB_REG(010f), 0xc1);
regmap_write(hdptx->regmap, SB_REG(0110), 0x1);
regmap_write(hdptx->regmap, LANE_REG(0301), 0x80);
regmap_write(hdptx->regmap, LANE_REG(0401), 0x80);
regmap_write(hdptx->regmap, LANE_REG(0501), 0x80);
regmap_write(hdptx->regmap, 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;
regmap_write(hdptx->grf, GRF_HDPTX_CON0, val);
}
static bool rk_hdptx_phy_clk_pll_calc(unsigned long long rate,
struct ropll_config *cfg)
{
const unsigned int fout = div_u64(rate, 200), fref = 24000;
unsigned long k = 0, lc, k_sub, lc_sub;
unsigned int fvco, sdc;
u32 mdiv, sdiv, n = 8;
if (fout > 0xfffffff)
return false;
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 rk_hdptx_ropll_tmds_cmn_config(struct rk_hdptx_phy *hdptx)
{
const struct ropll_config *cfg = NULL;
struct ropll_config rc = {0};
int ret, i;
if (!hdptx->hdmi_cfg.tmds_char_rate)
return 0;
for (i = 0; i < ARRAY_SIZE(ropll_tmds_cfg); i++)
if (hdptx->hdmi_cfg.tmds_char_rate == ropll_tmds_cfg[i].rate) {
cfg = &ropll_tmds_cfg[i];
break;
}
if (!cfg) {
if (!rk_hdptx_phy_clk_pll_calc(hdptx->hdmi_cfg.tmds_char_rate, &rc)) {
dev_err(hdptx->dev, "%s cannot find pll cfg for rate=%llu\n",
__func__, hdptx->hdmi_cfg.tmds_char_rate);
return -EINVAL;
}
cfg = &rc;
}
dev_dbg(hdptx->dev, "%s rate=%llu mdiv=%u sdiv=%u sdm_en=%u k_sign=%u k=%u lc=%u\n",
__func__, hdptx->hdmi_cfg.tmds_char_rate, cfg->pms_mdiv, cfg->pms_sdiv + 1,
cfg->sdm_en, cfg->sdm_num_sign, cfg->sdm_num, cfg->sdm_deno);
rk_hdptx_pre_power_up(hdptx);
rk_hdptx_multi_reg_write(hdptx, rk_hdtpx_common_cmn_init_seq);
rk_hdptx_multi_reg_write(hdptx, rk_hdtpx_tmds_cmn_init_seq);
regmap_write(hdptx->regmap, CMN_REG(0051), cfg->pms_mdiv);
regmap_write(hdptx->regmap, CMN_REG(0055), cfg->pms_mdiv_afc);
regmap_write(hdptx->regmap, CMN_REG(0059),
(cfg->pms_pdiv << 4) | cfg->pms_refdiv);
regmap_write(hdptx->regmap, CMN_REG(005a), cfg->pms_sdiv << 4);
regmap_update_bits(hdptx->regmap, CMN_REG(005e), ROPLL_SDM_EN_MASK,
FIELD_PREP(ROPLL_SDM_EN_MASK, cfg->sdm_en));
if (!cfg->sdm_en)
regmap_update_bits(hdptx->regmap, CMN_REG(005e), 0xf, 0);
regmap_update_bits(hdptx->regmap, CMN_REG(0064), ROPLL_SDM_NUM_SIGN_RBR_MASK,
FIELD_PREP(ROPLL_SDM_NUM_SIGN_RBR_MASK, cfg->sdm_num_sign));
regmap_write(hdptx->regmap, CMN_REG(0060), cfg->sdm_deno);
regmap_write(hdptx->regmap, CMN_REG(0065), cfg->sdm_num);
regmap_update_bits(hdptx->regmap, CMN_REG(0069), ROPLL_SDC_N_RBR_MASK,
FIELD_PREP(ROPLL_SDC_N_RBR_MASK, cfg->sdc_n));
regmap_write(hdptx->regmap, CMN_REG(006c), cfg->sdc_num);
regmap_write(hdptx->regmap, CMN_REG(0070), cfg->sdc_deno);
regmap_update_bits(hdptx->regmap, CMN_REG(0086), PLL_PCG_POSTDIV_SEL_MASK,
FIELD_PREP(PLL_PCG_POSTDIV_SEL_MASK, cfg->pms_sdiv));
regmap_update_bits(hdptx->regmap, CMN_REG(0086), PLL_PCG_CLK_SEL_MASK,
FIELD_PREP(PLL_PCG_CLK_SEL_MASK, (hdptx->hdmi_cfg.bpc - 8) >> 1));
regmap_update_bits(hdptx->regmap, CMN_REG(0086), PLL_PCG_CLK_EN_MASK,
FIELD_PREP(PLL_PCG_CLK_EN_MASK, 0x1));
ret = rk_hdptx_post_enable_pll(hdptx);
if (!ret)
hdptx->hw_rate = hdptx->hdmi_cfg.tmds_char_rate;
return ret;
}
static int rk_hdptx_ropll_tmds_mode_config(struct rk_hdptx_phy *hdptx)
{
rk_hdptx_multi_reg_write(hdptx, rk_hdtpx_common_sb_init_seq);
regmap_write(hdptx->regmap, LNTOP_REG(0200), 0x06);
if (hdptx->hdmi_cfg.tmds_char_rate > HDMI14_MAX_RATE) {
/* For 1/40 bitrate clk */
rk_hdptx_multi_reg_write(hdptx, rk_hdtpx_tmds_lntop_highbr_seq);
} else {
/* For 1/10 bitrate clk */
rk_hdptx_multi_reg_write(hdptx, rk_hdtpx_tmds_lntop_lowbr_seq);
}
regmap_write(hdptx->regmap, LNTOP_REG(0206), 0x07);
regmap_write(hdptx->regmap, LNTOP_REG(0207), 0x0f);
rk_hdptx_multi_reg_write(hdptx, rk_hdtpx_common_lane_init_seq);
rk_hdptx_multi_reg_write(hdptx, rk_hdtpx_tmds_lane_init_seq);
return rk_hdptx_post_enable_lane(hdptx);
}
static void rk_hdptx_dp_reset(struct rk_hdptx_phy *hdptx)
{
reset_control_assert(hdptx->rsts[RST_LANE].rstc);
reset_control_assert(hdptx->rsts[RST_CMN].rstc);
reset_control_assert(hdptx->rsts[RST_INIT].rstc);
reset_control_assert(hdptx->rsts[RST_APB].rstc);
udelay(10);
reset_control_deassert(hdptx->rsts[RST_APB].rstc);
regmap_update_bits(hdptx->regmap, LANE_REG(0301),
OVRD_LN_TX_DRV_EI_EN_MASK | LN_TX_DRV_EI_EN_MASK,
FIELD_PREP(OVRD_LN_TX_DRV_EI_EN_MASK, 1) |
FIELD_PREP(LN_TX_DRV_EI_EN_MASK, 0));
regmap_update_bits(hdptx->regmap, LANE_REG(0401),
OVRD_LN_TX_DRV_EI_EN_MASK | LN_TX_DRV_EI_EN_MASK,
FIELD_PREP(OVRD_LN_TX_DRV_EI_EN_MASK, 1) |
FIELD_PREP(LN_TX_DRV_EI_EN_MASK, 0));
regmap_update_bits(hdptx->regmap, LANE_REG(0501),
OVRD_LN_TX_DRV_EI_EN_MASK | LN_TX_DRV_EI_EN_MASK,
FIELD_PREP(OVRD_LN_TX_DRV_EI_EN_MASK, 1) |
FIELD_PREP(LN_TX_DRV_EI_EN_MASK, 0));
regmap_update_bits(hdptx->regmap, LANE_REG(0601),
OVRD_LN_TX_DRV_EI_EN_MASK | LN_TX_DRV_EI_EN_MASK,
FIELD_PREP(OVRD_LN_TX_DRV_EI_EN_MASK, 1) |
FIELD_PREP(LN_TX_DRV_EI_EN_MASK, 0));
regmap_write(hdptx->grf, GRF_HDPTX_CON0,
HDPTX_I_PLL_EN << 16 | FIELD_PREP(HDPTX_I_PLL_EN, 0x0));
regmap_write(hdptx->grf, GRF_HDPTX_CON0,
HDPTX_I_BIAS_EN << 16 | FIELD_PREP(HDPTX_I_BIAS_EN, 0x0));
regmap_write(hdptx->grf, GRF_HDPTX_CON0,
HDPTX_I_BGR_EN << 16 | FIELD_PREP(HDPTX_I_BGR_EN, 0x0));
}
static int rk_hdptx_phy_consumer_get(struct rk_hdptx_phy *hdptx)
{
enum phy_mode mode = phy_get_mode(hdptx->phy);
u32 status;
int ret;
if (atomic_inc_return(&hdptx->usage_count) > 1)
return 0;
ret = regmap_read(hdptx->grf, GRF_HDPTX_STATUS, &status);
if (ret)
goto dec_usage;
if (status & HDPTX_O_PLL_LOCK_DONE)
dev_warn(hdptx->dev, "PLL locked by unknown consumer!\n");
if (mode == PHY_MODE_DP) {
rk_hdptx_dp_reset(hdptx);
} else {
ret = rk_hdptx_ropll_tmds_cmn_config(hdptx);
if (ret)
goto dec_usage;
}
return 0;
dec_usage:
atomic_dec(&hdptx->usage_count);
return ret;
}
static int rk_hdptx_phy_consumer_put(struct rk_hdptx_phy *hdptx, bool force)
{
enum phy_mode mode = phy_get_mode(hdptx->phy);
u32 status;
int ret;
ret = atomic_dec_return(&hdptx->usage_count);
if (ret > 0)
return 0;
if (ret < 0) {
dev_warn(hdptx->dev, "Usage count underflow!\n");
ret = -EINVAL;
} else {
ret = regmap_read(hdptx->grf, GRF_HDPTX_STATUS, &status);
if (!ret) {
if (status & HDPTX_O_PLL_LOCK_DONE) {
if (mode == PHY_MODE_DP)
rk_hdptx_dp_reset(hdptx);
else
rk_hdptx_phy_disable(hdptx);
}
return 0;
} else if (force) {
return 0;
}
}
atomic_inc(&hdptx->usage_count);
return ret;
}
static void rk_hdptx_dp_pll_init(struct rk_hdptx_phy *hdptx)
{
regmap_update_bits(hdptx->regmap, CMN_REG(003c), ANA_LCPLL_RESERVED7_MASK,
FIELD_PREP(ANA_LCPLL_RESERVED7_MASK, 0x1));
regmap_update_bits(hdptx->regmap, CMN_REG(0046),
ROPLL_ANA_CPP_CTRL_COARSE_MASK | ROPLL_ANA_CPP_CTRL_FINE_MASK,
FIELD_PREP(ROPLL_ANA_CPP_CTRL_COARSE_MASK, 0xe) |
FIELD_PREP(ROPLL_ANA_CPP_CTRL_FINE_MASK, 0xe));
regmap_update_bits(hdptx->regmap, CMN_REG(0047),
ROPLL_ANA_LPF_C_SEL_COARSE_MASK |
ROPLL_ANA_LPF_C_SEL_FINE_MASK,
FIELD_PREP(ROPLL_ANA_LPF_C_SEL_COARSE_MASK, 0x4) |
FIELD_PREP(ROPLL_ANA_LPF_C_SEL_FINE_MASK, 0x4));
regmap_write(hdptx->regmap, CMN_REG(0051), FIELD_PREP(ROPLL_PMS_MDIV_MASK, 0x87));
regmap_write(hdptx->regmap, CMN_REG(0052), FIELD_PREP(ROPLL_PMS_MDIV_MASK, 0x71));
regmap_write(hdptx->regmap, CMN_REG(0053), FIELD_PREP(ROPLL_PMS_MDIV_MASK, 0x71));
regmap_write(hdptx->regmap, CMN_REG(0055),
FIELD_PREP(ROPLL_PMS_MDIV_AFC_MASK, 0x87));
regmap_write(hdptx->regmap, CMN_REG(0056),
FIELD_PREP(ROPLL_PMS_MDIV_AFC_MASK, 0x71));
regmap_write(hdptx->regmap, CMN_REG(0057),
FIELD_PREP(ROPLL_PMS_MDIV_AFC_MASK, 0x71));
regmap_write(hdptx->regmap, CMN_REG(0059),
FIELD_PREP(ANA_ROPLL_PMS_PDIV_MASK, 0x1) |
FIELD_PREP(ANA_ROPLL_PMS_REFDIV_MASK, 0x1));
regmap_write(hdptx->regmap, CMN_REG(005a),
FIELD_PREP(ROPLL_PMS_SDIV_RBR_MASK, 0x3) |
FIELD_PREP(ROPLL_PMS_SDIV_HBR_MASK, 0x1));
regmap_update_bits(hdptx->regmap, CMN_REG(005b), ROPLL_PMS_SDIV_HBR2_MASK,
FIELD_PREP(ROPLL_PMS_SDIV_HBR2_MASK, 0x0));
regmap_update_bits(hdptx->regmap, CMN_REG(005e), ROPLL_SDM_EN_MASK,
FIELD_PREP(ROPLL_SDM_EN_MASK, 0x1));
regmap_update_bits(hdptx->regmap, CMN_REG(005e),
OVRD_ROPLL_SDM_RSTN_MASK | ROPLL_SDM_RSTN_MASK,
FIELD_PREP(OVRD_ROPLL_SDM_RSTN_MASK, 0x1) |
FIELD_PREP(ROPLL_SDM_RSTN_MASK, 0x1));
regmap_update_bits(hdptx->regmap, CMN_REG(005e), ROPLL_SDC_FRAC_EN_RBR_MASK,
FIELD_PREP(ROPLL_SDC_FRAC_EN_RBR_MASK, 0x1));
regmap_update_bits(hdptx->regmap, CMN_REG(005e), ROPLL_SDC_FRAC_EN_HBR_MASK,
FIELD_PREP(ROPLL_SDC_FRAC_EN_HBR_MASK, 0x1));
regmap_update_bits(hdptx->regmap, CMN_REG(005e), ROPLL_SDC_FRAC_EN_HBR2_MASK,
FIELD_PREP(ROPLL_SDC_FRAC_EN_HBR2_MASK, 0x1));
regmap_update_bits(hdptx->regmap, CMN_REG(005f),
OVRD_ROPLL_SDC_RSTN_MASK | ROPLL_SDC_RSTN_MASK,
FIELD_PREP(OVRD_ROPLL_SDC_RSTN_MASK, 0x1) |
FIELD_PREP(ROPLL_SDC_RSTN_MASK, 0x1));
regmap_write(hdptx->regmap, CMN_REG(0060),
FIELD_PREP(ROPLL_SDM_DENOMINATOR_MASK, 0x21));
regmap_write(hdptx->regmap, CMN_REG(0061),
FIELD_PREP(ROPLL_SDM_DENOMINATOR_MASK, 0x27));
regmap_write(hdptx->regmap, CMN_REG(0062),
FIELD_PREP(ROPLL_SDM_DENOMINATOR_MASK, 0x27));
regmap_update_bits(hdptx->regmap, CMN_REG(0064),
ROPLL_SDM_NUM_SIGN_RBR_MASK |
ROPLL_SDM_NUM_SIGN_HBR_MASK |
ROPLL_SDM_NUM_SIGN_HBR2_MASK,
FIELD_PREP(ROPLL_SDM_NUM_SIGN_RBR_MASK, 0x0) |
FIELD_PREP(ROPLL_SDM_NUM_SIGN_HBR_MASK, 0x1) |
FIELD_PREP(ROPLL_SDM_NUM_SIGN_HBR2_MASK, 0x1));
regmap_write(hdptx->regmap, CMN_REG(0065),
FIELD_PREP(ROPLL_SDM_NUM_MASK, 0x0));
regmap_write(hdptx->regmap, CMN_REG(0066),
FIELD_PREP(ROPLL_SDM_NUM_MASK, 0xd));
regmap_write(hdptx->regmap, CMN_REG(0067),
FIELD_PREP(ROPLL_SDM_NUM_MASK, 0xd));
regmap_update_bits(hdptx->regmap, CMN_REG(0069), ROPLL_SDC_N_RBR_MASK,
FIELD_PREP(ROPLL_SDC_N_RBR_MASK, 0x2));
regmap_update_bits(hdptx->regmap, CMN_REG(006a),
ROPLL_SDC_N_HBR_MASK | ROPLL_SDC_N_HBR2_MASK,
FIELD_PREP(ROPLL_SDC_N_HBR_MASK, 0x1) |
FIELD_PREP(ROPLL_SDC_N_HBR2_MASK, 0x1));
regmap_write(hdptx->regmap, CMN_REG(006c),
FIELD_PREP(ROPLL_SDC_NUM_MASK, 0x3));
regmap_write(hdptx->regmap, CMN_REG(006d),
FIELD_PREP(ROPLL_SDC_NUM_MASK, 0x7));
regmap_write(hdptx->regmap, CMN_REG(006e),
FIELD_PREP(ROPLL_SDC_NUM_MASK, 0x7));
regmap_write(hdptx->regmap, CMN_REG(0070),
FIELD_PREP(ROPLL_SDC_DENO_MASK, 0x8));
regmap_write(hdptx->regmap, CMN_REG(0071),
FIELD_PREP(ROPLL_SDC_DENO_MASK, 0x18));
regmap_write(hdptx->regmap, CMN_REG(0072),
FIELD_PREP(ROPLL_SDC_DENO_MASK, 0x18));
regmap_update_bits(hdptx->regmap, CMN_REG(0074),
OVRD_ROPLL_SDC_NDIV_RSTN_MASK | ROPLL_SDC_NDIV_RSTN_MASK,
FIELD_PREP(OVRD_ROPLL_SDC_NDIV_RSTN_MASK, 0x1) |
FIELD_PREP(ROPLL_SDC_NDIV_RSTN_MASK, 0x1));
regmap_update_bits(hdptx->regmap, CMN_REG(0077), ANA_ROPLL_SSC_CLK_DIV_SEL_MASK,
FIELD_PREP(ANA_ROPLL_SSC_CLK_DIV_SEL_MASK, 0x1));
regmap_update_bits(hdptx->regmap, CMN_REG(0081), ANA_PLL_CD_TX_SER_RATE_SEL_MASK,
FIELD_PREP(ANA_PLL_CD_TX_SER_RATE_SEL_MASK, 0x0));
regmap_update_bits(hdptx->regmap, CMN_REG(0081),
ANA_PLL_CD_HSCLK_EAST_EN_MASK | ANA_PLL_CD_HSCLK_WEST_EN_MASK,
FIELD_PREP(ANA_PLL_CD_HSCLK_EAST_EN_MASK, 0x1) |
FIELD_PREP(ANA_PLL_CD_HSCLK_WEST_EN_MASK, 0x0));
regmap_update_bits(hdptx->regmap, CMN_REG(0082), ANA_PLL_CD_VREG_GAIN_CTRL_MASK,
FIELD_PREP(ANA_PLL_CD_VREG_GAIN_CTRL_MASK, 0x4));
regmap_update_bits(hdptx->regmap, CMN_REG(0083), ANA_PLL_CD_VREG_ICTRL_MASK,
FIELD_PREP(ANA_PLL_CD_VREG_ICTRL_MASK, 0x1));
regmap_update_bits(hdptx->regmap, CMN_REG(0084), PLL_LCRO_CLK_SEL_MASK,
FIELD_PREP(PLL_LCRO_CLK_SEL_MASK, 0x1));
regmap_update_bits(hdptx->regmap, CMN_REG(0085), ANA_PLL_SYNC_LOSS_DET_MODE_MASK,
FIELD_PREP(ANA_PLL_SYNC_LOSS_DET_MODE_MASK, 0x3));
regmap_update_bits(hdptx->regmap, CMN_REG(0087), ANA_PLL_TX_HS_CLK_EN_MASK,
FIELD_PREP(ANA_PLL_TX_HS_CLK_EN_MASK, 0x1));
regmap_update_bits(hdptx->regmap, CMN_REG(0097), DIG_CLK_SEL_MASK,
FIELD_PREP(DIG_CLK_SEL_MASK, 0x1));
regmap_update_bits(hdptx->regmap, CMN_REG(0099), CMN_ROPLL_ALONE_MODE_MASK,
FIELD_PREP(CMN_ROPLL_ALONE_MODE_MASK, 0x1));
regmap_update_bits(hdptx->regmap, CMN_REG(009a), HS_SPEED_SEL_MASK,
FIELD_PREP(HS_SPEED_SEL_MASK, 0x1));
regmap_update_bits(hdptx->regmap, CMN_REG(009b), LS_SPEED_SEL_MASK,
FIELD_PREP(LS_SPEED_SEL_MASK, 0x1));
}
static int rk_hdptx_dp_aux_init(struct rk_hdptx_phy *hdptx)
{
u32 status;
int ret;
regmap_update_bits(hdptx->regmap, SB_REG(0102), ANA_SB_RXTERM_OFFSP_MASK,
FIELD_PREP(ANA_SB_RXTERM_OFFSP_MASK, 0x3));
regmap_update_bits(hdptx->regmap, SB_REG(0103), ANA_SB_RXTERM_OFFSN_MASK,
FIELD_PREP(ANA_SB_RXTERM_OFFSN_MASK, 0x3));
regmap_update_bits(hdptx->regmap, SB_REG(0104), SB_AUX_EN_MASK,
FIELD_PREP(SB_AUX_EN_MASK, 0x1));
regmap_update_bits(hdptx->regmap, SB_REG(0105), ANA_SB_TX_HLVL_PROG_MASK,
FIELD_PREP(ANA_SB_TX_HLVL_PROG_MASK, 0x7));
regmap_update_bits(hdptx->regmap, SB_REG(0106), ANA_SB_TX_LLVL_PROG_MASK,
FIELD_PREP(ANA_SB_TX_LLVL_PROG_MASK, 0x7));
regmap_update_bits(hdptx->regmap, SB_REG(010d), ANA_SB_DMRX_LPBK_DATA_MASK,
FIELD_PREP(ANA_SB_DMRX_LPBK_DATA_MASK, 0x1));
regmap_update_bits(hdptx->regmap, SB_REG(010f), ANA_SB_VREG_GAIN_CTRL_MASK,
FIELD_PREP(ANA_SB_VREG_GAIN_CTRL_MASK, 0x0));
regmap_update_bits(hdptx->regmap, SB_REG(0110),
ANA_SB_VREG_OUT_SEL_MASK | ANA_SB_VREG_REF_SEL_MASK,
FIELD_PREP(ANA_SB_VREG_OUT_SEL_MASK, 0x1) |
FIELD_PREP(ANA_SB_VREG_REF_SEL_MASK, 0x1));
regmap_update_bits(hdptx->regmap, SB_REG(0113),
SB_RX_RCAL_OPT_CODE_MASK | SB_RX_RTERM_CTRL_MASK,
FIELD_PREP(SB_RX_RCAL_OPT_CODE_MASK, 0x1) |
FIELD_PREP(SB_RX_RTERM_CTRL_MASK, 0x3));
regmap_update_bits(hdptx->regmap, SB_REG(0114),
SB_TG_SB_EN_DELAY_TIME_MASK | SB_TG_RXTERM_EN_DELAY_TIME_MASK,
FIELD_PREP(SB_TG_SB_EN_DELAY_TIME_MASK, 0x2) |
FIELD_PREP(SB_TG_RXTERM_EN_DELAY_TIME_MASK, 0x2));
regmap_update_bits(hdptx->regmap, SB_REG(0115),
SB_READY_DELAY_TIME_MASK | SB_TG_OSC_EN_DELAY_TIME_MASK,
FIELD_PREP(SB_READY_DELAY_TIME_MASK, 0x2) |
FIELD_PREP(SB_TG_OSC_EN_DELAY_TIME_MASK, 0x2));
regmap_update_bits(hdptx->regmap, SB_REG(0116),
AFC_RSTN_DELAY_TIME_MASK,
FIELD_PREP(AFC_RSTN_DELAY_TIME_MASK, 0x2));
regmap_update_bits(hdptx->regmap, SB_REG(0117),
FAST_PULSE_TIME_MASK,
FIELD_PREP(FAST_PULSE_TIME_MASK, 0x4));
regmap_update_bits(hdptx->regmap, SB_REG(0118),
SB_TG_EARC_DMRX_RECVRD_CLK_CNT_MASK,
FIELD_PREP(SB_TG_EARC_DMRX_RECVRD_CLK_CNT_MASK, 0xa));
regmap_update_bits(hdptx->regmap, SB_REG(011a), SB_TG_CNT_RUN_NO_7_0_MASK,
FIELD_PREP(SB_TG_CNT_RUN_NO_7_0_MASK, 0x3));
regmap_update_bits(hdptx->regmap, SB_REG(011b),
SB_EARC_SIG_DET_BYPASS_MASK | SB_AFC_TOL_MASK,
FIELD_PREP(SB_EARC_SIG_DET_BYPASS_MASK, 0x1) |
FIELD_PREP(SB_AFC_TOL_MASK, 0x3));
regmap_update_bits(hdptx->regmap, SB_REG(011c), SB_AFC_STB_NUM_MASK,
FIELD_PREP(SB_AFC_STB_NUM_MASK, 0x4));
regmap_update_bits(hdptx->regmap, SB_REG(011d), SB_TG_OSC_CNT_MIN_MASK,
FIELD_PREP(SB_TG_OSC_CNT_MIN_MASK, 0x67));
regmap_update_bits(hdptx->regmap, SB_REG(011e), SB_TG_OSC_CNT_MAX_MASK,
FIELD_PREP(SB_TG_OSC_CNT_MAX_MASK, 0x6a));
regmap_update_bits(hdptx->regmap, SB_REG(011f), SB_PWM_AFC_CTRL_MASK,
FIELD_PREP(SB_PWM_AFC_CTRL_MASK, 0x5));
regmap_update_bits(hdptx->regmap, SB_REG(011f), SB_RCAL_RSTN_MASK,
FIELD_PREP(SB_RCAL_RSTN_MASK, 0x1));
regmap_update_bits(hdptx->regmap, SB_REG(0120), SB_AUX_EN_IN_MASK,
FIELD_PREP(SB_AUX_EN_IN_MASK, 0x1));
regmap_update_bits(hdptx->regmap, SB_REG(0102), OVRD_SB_RXTERM_EN_MASK,
FIELD_PREP(OVRD_SB_RXTERM_EN_MASK, 0x1));
regmap_update_bits(hdptx->regmap, SB_REG(0103), OVRD_SB_RX_RESCAL_DONE_MASK,
FIELD_PREP(OVRD_SB_RX_RESCAL_DONE_MASK, 0x1));
regmap_update_bits(hdptx->regmap, SB_REG(0104), OVRD_SB_EN_MASK,
FIELD_PREP(OVRD_SB_EN_MASK, 0x1));
regmap_update_bits(hdptx->regmap, SB_REG(0104), OVRD_SB_AUX_EN_MASK,
FIELD_PREP(OVRD_SB_AUX_EN_MASK, 0x1));
regmap_update_bits(hdptx->regmap, SB_REG(010f), OVRD_SB_VREG_EN_MASK,
FIELD_PREP(OVRD_SB_VREG_EN_MASK, 0x1));
regmap_write(hdptx->grf, GRF_HDPTX_CON0,
HDPTX_I_BGR_EN << 16 | FIELD_PREP(HDPTX_I_BGR_EN, 0x1));
regmap_write(hdptx->grf, GRF_HDPTX_CON0,
HDPTX_I_BIAS_EN << 16 | FIELD_PREP(HDPTX_I_BIAS_EN, 0x1));
usleep_range(20, 25);
reset_control_deassert(hdptx->rsts[RST_INIT].rstc);
usleep_range(20, 25);
reset_control_deassert(hdptx->rsts[RST_CMN].rstc);
usleep_range(20, 25);
regmap_update_bits(hdptx->regmap, SB_REG(0103), OVRD_SB_RX_RESCAL_DONE_MASK,
FIELD_PREP(OVRD_SB_RX_RESCAL_DONE_MASK, 0x1));
usleep_range(100, 110);
regmap_update_bits(hdptx->regmap, SB_REG(0104), SB_EN_MASK,
FIELD_PREP(SB_EN_MASK, 0x1));
usleep_range(100, 110);
regmap_update_bits(hdptx->regmap, SB_REG(0102), SB_RXTERM_EN_MASK,
FIELD_PREP(SB_RXTERM_EN_MASK, 0x1));
usleep_range(20, 25);
regmap_update_bits(hdptx->regmap, SB_REG(010f), SB_VREG_EN_MASK,
FIELD_PREP(SB_VREG_EN_MASK, 0x1));
usleep_range(20, 25);
regmap_update_bits(hdptx->regmap, SB_REG(0104), SB_AUX_EN_MASK,
FIELD_PREP(SB_AUX_EN_MASK, 0x1));
usleep_range(100, 110);
ret = regmap_read_poll_timeout(hdptx->grf, GRF_HDPTX_STATUS,
status, FIELD_GET(HDPTX_O_SB_RDY, status),
50, 1000);
if (ret) {
dev_err(hdptx->dev, "Failed to get phy sb ready: %d\n", ret);
return ret;
}
return 0;
}
static int rk_hdptx_phy_power_on(struct phy *phy)
{
struct rk_hdptx_phy *hdptx = phy_get_drvdata(phy);
enum phy_mode mode = phy_get_mode(phy);
int ret, lane;
if (mode != PHY_MODE_DP) {
if (!hdptx->hdmi_cfg.tmds_char_rate) {
/*
* FIXME: Temporary workaround to setup TMDS char rate
* from the RK DW HDMI QP bridge driver.
* Will be removed as soon the switch to the HDMI PHY
* configuration API has been completed on both ends.
*/
hdptx->hdmi_cfg.tmds_char_rate = phy_get_bus_width(hdptx->phy) & 0xfffffff;
hdptx->hdmi_cfg.tmds_char_rate *= 100;
}
dev_dbg(hdptx->dev, "%s rate=%llu bpc=%u\n", __func__,
hdptx->hdmi_cfg.tmds_char_rate, hdptx->hdmi_cfg.bpc);
}
ret = rk_hdptx_phy_consumer_get(hdptx);
if (ret)
return ret;
if (mode == PHY_MODE_DP) {
regmap_write(hdptx->grf, GRF_HDPTX_CON0,
HDPTX_MODE_SEL << 16 | FIELD_PREP(HDPTX_MODE_SEL, 0x1));
for (lane = 0; lane < 4; lane++) {
regmap_update_bits(hdptx->regmap, LANE_REG(031e) + 0x400 * lane,
LN_POLARITY_INV_MASK | LN_LANE_MODE_MASK,
FIELD_PREP(LN_POLARITY_INV_MASK, 0) |
FIELD_PREP(LN_LANE_MODE_MASK, 1));
}
regmap_update_bits(hdptx->regmap, LNTOP_REG(0200), PROTOCOL_SEL_MASK,
FIELD_PREP(PROTOCOL_SEL_MASK, 0x0));
regmap_update_bits(hdptx->regmap, LNTOP_REG(0206), DATA_BUS_WIDTH_MASK,
FIELD_PREP(DATA_BUS_WIDTH_MASK, 0x1));
regmap_update_bits(hdptx->regmap, LNTOP_REG(0206), DATA_BUS_WIDTH_SEL_MASK,
FIELD_PREP(DATA_BUS_WIDTH_SEL_MASK, 0x0));
rk_hdptx_dp_pll_init(hdptx);
ret = rk_hdptx_dp_aux_init(hdptx);
if (ret)
rk_hdptx_phy_consumer_put(hdptx, true);
} else {
regmap_write(hdptx->grf, GRF_HDPTX_CON0,
HDPTX_MODE_SEL << 16 | FIELD_PREP(HDPTX_MODE_SEL, 0x0));
ret = rk_hdptx_ropll_tmds_mode_config(hdptx);
if (ret)
rk_hdptx_phy_consumer_put(hdptx, true);
}
return ret;
}
static int rk_hdptx_phy_power_off(struct phy *phy)
{
struct rk_hdptx_phy *hdptx = phy_get_drvdata(phy);
return rk_hdptx_phy_consumer_put(hdptx, false);
}
static int rk_hdptx_phy_verify_hdmi_config(struct rk_hdptx_phy *hdptx,
struct phy_configure_opts_hdmi *hdmi)
{
int i;
if (!hdmi->tmds_char_rate || hdmi->tmds_char_rate > HDMI20_MAX_RATE)
return -EINVAL;
for (i = 0; i < ARRAY_SIZE(ropll_tmds_cfg); i++)
if (hdmi->tmds_char_rate == ropll_tmds_cfg[i].rate)
break;
if (i == ARRAY_SIZE(ropll_tmds_cfg) &&
!rk_hdptx_phy_clk_pll_calc(hdmi->tmds_char_rate, NULL))
return -EINVAL;
if (!hdmi->bpc)
hdmi->bpc = 8;
switch (hdmi->bpc) {
case 8:
case 10:
case 12:
case 16:
break;
default:
return -EINVAL;
}
return 0;
}
static int rk_hdptx_phy_verify_dp_config(struct rk_hdptx_phy *hdptx,
struct phy_configure_opts_dp *dp)
{
int i;
if (dp->set_rate) {
switch (dp->link_rate) {
case 1620:
case 2700:
case 5400:
break;
default:
return -EINVAL;
}
}
if (dp->set_lanes) {
switch (dp->lanes) {
case 1:
case 2:
case 4:
break;
default:
return -EINVAL;
}
}
if (dp->set_voltages) {
for (i = 0; i < hdptx->lanes; i++) {
if (dp->voltage[i] > 3 || dp->pre[i] > 3)
return -EINVAL;
if (dp->voltage[i] + dp->pre[i] > 3)
return -EINVAL;
}
}
return 0;
}
static int rk_hdptx_phy_set_rate(struct rk_hdptx_phy *hdptx,
struct phy_configure_opts_dp *dp)
{
u32 bw, status;
int ret;
regmap_write(hdptx->grf, GRF_HDPTX_CON0,
HDPTX_I_PLL_EN << 16 | FIELD_PREP(HDPTX_I_PLL_EN, 0x0));
switch (dp->link_rate) {
case 1620:
bw = DP_BW_RBR;
break;
case 2700:
bw = DP_BW_HBR;
break;
case 5400:
bw = DP_BW_HBR2;
break;
default:
return -EINVAL;
}
hdptx->link_rate = dp->link_rate;
regmap_update_bits(hdptx->regmap, CMN_REG(0008), OVRD_LCPLL_EN_MASK | LCPLL_EN_MASK,
FIELD_PREP(OVRD_LCPLL_EN_MASK, 0x1) |
FIELD_PREP(LCPLL_EN_MASK, 0x0));
regmap_update_bits(hdptx->regmap, CMN_REG(003d), OVRD_ROPLL_EN_MASK | ROPLL_EN_MASK,
FIELD_PREP(OVRD_ROPLL_EN_MASK, 0x1) |
FIELD_PREP(ROPLL_EN_MASK, 0x1));
if (dp->ssc) {
regmap_update_bits(hdptx->regmap, CMN_REG(0074),
OVRD_ROPLL_SSC_EN_MASK | ROPLL_SSC_EN_MASK,
FIELD_PREP(OVRD_ROPLL_SSC_EN_MASK, 0x1) |
FIELD_PREP(ROPLL_SSC_EN_MASK, 0x1));
regmap_write(hdptx->regmap, CMN_REG(0075),
FIELD_PREP(ANA_ROPLL_SSC_FM_DEVIATION_MASK, 0xc));
regmap_update_bits(hdptx->regmap, CMN_REG(0076),
ANA_ROPLL_SSC_FM_FREQ_MASK,
FIELD_PREP(ANA_ROPLL_SSC_FM_FREQ_MASK, 0x1f));
regmap_update_bits(hdptx->regmap, CMN_REG(0099), SSC_EN_MASK,
FIELD_PREP(SSC_EN_MASK, 0x2));
} else {
regmap_update_bits(hdptx->regmap, CMN_REG(0074),
OVRD_ROPLL_SSC_EN_MASK | ROPLL_SSC_EN_MASK,
FIELD_PREP(OVRD_ROPLL_SSC_EN_MASK, 0x1) |
FIELD_PREP(ROPLL_SSC_EN_MASK, 0x0));
regmap_write(hdptx->regmap, CMN_REG(0075),
FIELD_PREP(ANA_ROPLL_SSC_FM_DEVIATION_MASK, 0x20));
regmap_update_bits(hdptx->regmap, CMN_REG(0076),
ANA_ROPLL_SSC_FM_FREQ_MASK,
FIELD_PREP(ANA_ROPLL_SSC_FM_FREQ_MASK, 0xc));
regmap_update_bits(hdptx->regmap, CMN_REG(0099), SSC_EN_MASK,
FIELD_PREP(SSC_EN_MASK, 0x0));
}
regmap_update_bits(hdptx->regmap, CMN_REG(0095), DP_TX_LINK_BW_MASK,
FIELD_PREP(DP_TX_LINK_BW_MASK, bw));
regmap_write(hdptx->grf, GRF_HDPTX_CON0,
HDPTX_I_PLL_EN << 16 | FIELD_PREP(HDPTX_I_PLL_EN, 0x1));
ret = regmap_read_poll_timeout(hdptx->grf, GRF_HDPTX_STATUS,
status, FIELD_GET(HDPTX_O_PLL_LOCK_DONE, status),
50, 1000);
if (ret) {
dev_err(hdptx->dev, "Failed to get phy pll lock: %d\n", ret);
return ret;
}
return 0;
}
static int rk_hdptx_phy_set_lanes(struct rk_hdptx_phy *hdptx,
struct phy_configure_opts_dp *dp)
{
hdptx->lanes = dp->lanes;
regmap_update_bits(hdptx->regmap, LNTOP_REG(0207), LANE_EN_MASK,
FIELD_PREP(LANE_EN_MASK, GENMASK(hdptx->lanes - 1, 0)));
return 0;
}
static void rk_hdptx_phy_set_voltage(struct rk_hdptx_phy *hdptx,
struct phy_configure_opts_dp *dp,
u8 lane)
{
const struct tx_drv_ctrl *ctrl;
u32 offset = lane * 0x400;
switch (hdptx->link_rate) {
case 1620:
ctrl = &tx_drv_ctrl_rbr[dp->voltage[lane]][dp->pre[lane]];
regmap_update_bits(hdptx->regmap, LANE_REG(030a) + offset,
LN_TX_JEQ_EVEN_CTRL_RBR_MASK,
FIELD_PREP(LN_TX_JEQ_EVEN_CTRL_RBR_MASK,
ctrl->tx_jeq_even_ctrl));
regmap_update_bits(hdptx->regmap, LANE_REG(030c) + offset,
LN_TX_JEQ_ODD_CTRL_RBR_MASK,
FIELD_PREP(LN_TX_JEQ_ODD_CTRL_RBR_MASK,
ctrl->tx_jeq_odd_ctrl));
regmap_update_bits(hdptx->regmap, LANE_REG(0311) + offset,
LN_TX_SER_40BIT_EN_RBR_MASK,
FIELD_PREP(LN_TX_SER_40BIT_EN_RBR_MASK, 0x1));
break;
case 2700:
ctrl = &tx_drv_ctrl_hbr[dp->voltage[lane]][dp->pre[lane]];
regmap_update_bits(hdptx->regmap, LANE_REG(030b) + offset,
LN_TX_JEQ_EVEN_CTRL_HBR_MASK,
FIELD_PREP(LN_TX_JEQ_EVEN_CTRL_HBR_MASK,
ctrl->tx_jeq_even_ctrl));
regmap_update_bits(hdptx->regmap, LANE_REG(030d) + offset,
LN_TX_JEQ_ODD_CTRL_HBR_MASK,
FIELD_PREP(LN_TX_JEQ_ODD_CTRL_HBR_MASK,
ctrl->tx_jeq_odd_ctrl));
regmap_update_bits(hdptx->regmap, LANE_REG(0311) + offset,
LN_TX_SER_40BIT_EN_HBR_MASK,
FIELD_PREP(LN_TX_SER_40BIT_EN_HBR_MASK, 0x1));
break;
case 5400:
default:
ctrl = &tx_drv_ctrl_hbr2[dp->voltage[lane]][dp->pre[lane]];
regmap_update_bits(hdptx->regmap, LANE_REG(030b) + offset,
LN_TX_JEQ_EVEN_CTRL_HBR2_MASK,
FIELD_PREP(LN_TX_JEQ_EVEN_CTRL_HBR2_MASK,
ctrl->tx_jeq_even_ctrl));
regmap_update_bits(hdptx->regmap, LANE_REG(030d) + offset,
LN_TX_JEQ_ODD_CTRL_HBR2_MASK,
FIELD_PREP(LN_TX_JEQ_ODD_CTRL_HBR2_MASK,
ctrl->tx_jeq_odd_ctrl));
regmap_update_bits(hdptx->regmap, LANE_REG(0311) + offset,
LN_TX_SER_40BIT_EN_HBR2_MASK,
FIELD_PREP(LN_TX_SER_40BIT_EN_HBR2_MASK, 0x1));
break;
}
regmap_update_bits(hdptx->regmap, LANE_REG(0303) + offset,
OVRD_LN_TX_DRV_LVL_CTRL_MASK | LN_TX_DRV_LVL_CTRL_MASK,
FIELD_PREP(OVRD_LN_TX_DRV_LVL_CTRL_MASK, 0x1) |
FIELD_PREP(LN_TX_DRV_LVL_CTRL_MASK,
ctrl->tx_drv_lvl_ctrl));
regmap_update_bits(hdptx->regmap, LANE_REG(0304) + offset,
OVRD_LN_TX_DRV_POST_LVL_CTRL_MASK |
LN_TX_DRV_POST_LVL_CTRL_MASK,
FIELD_PREP(OVRD_LN_TX_DRV_POST_LVL_CTRL_MASK, 0x1) |
FIELD_PREP(LN_TX_DRV_POST_LVL_CTRL_MASK,
ctrl->tx_drv_post_lvl_ctrl));
regmap_update_bits(hdptx->regmap, LANE_REG(0305) + offset,
OVRD_LN_TX_DRV_PRE_LVL_CTRL_MASK |
LN_TX_DRV_PRE_LVL_CTRL_MASK,
FIELD_PREP(OVRD_LN_TX_DRV_PRE_LVL_CTRL_MASK, 0x1) |
FIELD_PREP(LN_TX_DRV_PRE_LVL_CTRL_MASK,
ctrl->tx_drv_pre_lvl_ctrl));
regmap_update_bits(hdptx->regmap, LANE_REG(0306) + offset,
LN_ANA_TX_DRV_IDRV_IDN_CTRL_MASK |
LN_ANA_TX_DRV_IDRV_IUP_CTRL_MASK |
LN_ANA_TX_DRV_ACCDRV_EN_MASK,
FIELD_PREP(LN_ANA_TX_DRV_IDRV_IDN_CTRL_MASK,
ctrl->ana_tx_drv_idrv_idn_ctrl) |
FIELD_PREP(LN_ANA_TX_DRV_IDRV_IUP_CTRL_MASK,
ctrl->ana_tx_drv_idrv_iup_ctrl) |
FIELD_PREP(LN_ANA_TX_DRV_ACCDRV_EN_MASK,
ctrl->ana_tx_drv_accdrv_en));
regmap_update_bits(hdptx->regmap, LANE_REG(0307) + offset,
LN_ANA_TX_DRV_ACCDRV_POL_SEL_MASK |
LN_ANA_TX_DRV_ACCDRV_CTRL_MASK,
FIELD_PREP(LN_ANA_TX_DRV_ACCDRV_POL_SEL_MASK, 0x1) |
FIELD_PREP(LN_ANA_TX_DRV_ACCDRV_CTRL_MASK,
ctrl->ana_tx_drv_accdrv_ctrl));
regmap_update_bits(hdptx->regmap, LANE_REG(030a) + offset,
LN_ANA_TX_JEQ_EN_MASK,
FIELD_PREP(LN_ANA_TX_JEQ_EN_MASK, ctrl->ana_tx_jeq_en));
regmap_update_bits(hdptx->regmap, LANE_REG(0310) + offset,
LN_ANA_TX_SYNC_LOSS_DET_MODE_MASK,
FIELD_PREP(LN_ANA_TX_SYNC_LOSS_DET_MODE_MASK, 0x3));
regmap_update_bits(hdptx->regmap, LANE_REG(0316) + offset,
LN_ANA_TX_SER_VREG_GAIN_CTRL_MASK,
FIELD_PREP(LN_ANA_TX_SER_VREG_GAIN_CTRL_MASK, 0x2));
regmap_update_bits(hdptx->regmap, LANE_REG(031b) + offset,
LN_ANA_TX_RESERVED_MASK,
FIELD_PREP(LN_ANA_TX_RESERVED_MASK, 0x1));
}
static int rk_hdptx_phy_set_voltages(struct rk_hdptx_phy *hdptx,
struct phy_configure_opts_dp *dp)
{
u8 lane;
u32 status;
int ret;
for (lane = 0; lane < hdptx->lanes; lane++)
rk_hdptx_phy_set_voltage(hdptx, dp, lane);
reset_control_deassert(hdptx->rsts[RST_LANE].rstc);
ret = regmap_read_poll_timeout(hdptx->grf, GRF_HDPTX_STATUS,
status, FIELD_GET(HDPTX_O_PHY_RDY, status),
50, 5000);
if (ret) {
dev_err(hdptx->dev, "Failed to get phy ready: %d\n", ret);
return ret;
}
return 0;
}
static int rk_hdptx_phy_configure(struct phy *phy, union phy_configure_opts *opts)
{
struct rk_hdptx_phy *hdptx = phy_get_drvdata(phy);
enum phy_mode mode = phy_get_mode(phy);
int ret;
if (mode != PHY_MODE_DP) {
ret = rk_hdptx_phy_verify_hdmi_config(hdptx, &opts->hdmi);
if (ret) {
dev_err(hdptx->dev, "invalid hdmi params for phy configure\n");
} else {
hdptx->hdmi_cfg = opts->hdmi;
hdptx->restrict_rate_change = true;
}
dev_dbg(hdptx->dev, "%s rate=%llu bpc=%u\n", __func__,
hdptx->hdmi_cfg.tmds_char_rate, hdptx->hdmi_cfg.bpc);
return ret;
}
ret = rk_hdptx_phy_verify_dp_config(hdptx, &opts->dp);
if (ret) {
dev_err(hdptx->dev, "invalid dp params for phy configure\n");
return ret;
}
if (opts->dp.set_rate) {
ret = rk_hdptx_phy_set_rate(hdptx, &opts->dp);
if (ret) {
dev_err(hdptx->dev, "failed to set rate: %d\n", ret);
return ret;
}
}
if (opts->dp.set_lanes) {
ret = rk_hdptx_phy_set_lanes(hdptx, &opts->dp);
if (ret) {
dev_err(hdptx->dev, "failed to set lanes: %d\n", ret);
return ret;
}
}
if (opts->dp.set_voltages) {
ret = rk_hdptx_phy_set_voltages(hdptx, &opts->dp);
if (ret) {
dev_err(hdptx->dev, "failed to set voltages: %d\n",
ret);
return ret;
}
}
return 0;
}
static int rk_hdptx_phy_validate(struct phy *phy, enum phy_mode mode,
int submode, union phy_configure_opts *opts)
{
struct rk_hdptx_phy *hdptx = phy_get_drvdata(phy);
if (mode != PHY_MODE_DP)
return rk_hdptx_phy_verify_hdmi_config(hdptx, &opts->hdmi);
return rk_hdptx_phy_verify_dp_config(hdptx, &opts->dp);
}
static const struct phy_ops rk_hdptx_phy_ops = {
.power_on = rk_hdptx_phy_power_on,
.power_off = rk_hdptx_phy_power_off,
.configure = rk_hdptx_phy_configure,
.validate = rk_hdptx_phy_validate,
.owner = THIS_MODULE,
};
static struct rk_hdptx_phy *to_rk_hdptx_phy(struct clk_hw *hw)
{
return container_of(hw, struct rk_hdptx_phy, hw);
}
static int rk_hdptx_phy_clk_prepare(struct clk_hw *hw)
{
struct rk_hdptx_phy *hdptx = to_rk_hdptx_phy(hw);
return rk_hdptx_phy_consumer_get(hdptx);
}
static void rk_hdptx_phy_clk_unprepare(struct clk_hw *hw)
{
struct rk_hdptx_phy *hdptx = to_rk_hdptx_phy(hw);
rk_hdptx_phy_consumer_put(hdptx, true);
}
static unsigned long rk_hdptx_phy_clk_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
struct rk_hdptx_phy *hdptx = to_rk_hdptx_phy(hw);
return hdptx->hw_rate;
}
static long rk_hdptx_phy_clk_round_rate(struct clk_hw *hw, unsigned long rate,
unsigned long *parent_rate)
{
struct rk_hdptx_phy *hdptx = to_rk_hdptx_phy(hw);
/*
* FIXME: Temporarily allow altering TMDS char rate via CCF.
* To be dropped as soon as the RK DW HDMI QP bridge driver
* switches to make use of phy_configure().
*/
if (!hdptx->restrict_rate_change && rate != hdptx->hdmi_cfg.tmds_char_rate) {
struct phy_configure_opts_hdmi hdmi = {
.tmds_char_rate = rate,
};
int ret = rk_hdptx_phy_verify_hdmi_config(hdptx, &hdmi);
if (ret)
return ret;
hdptx->hdmi_cfg = hdmi;
}
/*
* The TMDS char rate shall be adjusted via phy_configure() only,
* hence ensure rk_hdptx_phy_clk_set_rate() won't be invoked with
* a different rate argument.
*/
return hdptx->hdmi_cfg.tmds_char_rate;
}
static int rk_hdptx_phy_clk_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
struct rk_hdptx_phy *hdptx = to_rk_hdptx_phy(hw);
/* Revert any unlikely TMDS char rate change since round_rate() */
if (hdptx->hdmi_cfg.tmds_char_rate != rate) {
dev_warn(hdptx->dev, "Reverting unexpected rate change from %lu to %llu\n",
rate, hdptx->hdmi_cfg.tmds_char_rate);
hdptx->hdmi_cfg.tmds_char_rate = rate;
}
/*
* The TMDS char rate would be normally programmed in HW during
* phy_ops.power_on() or clk_ops.prepare() callbacks, but it might
* happen that the former gets fired too late, i.e. after this call,
* while the latter being executed only once, i.e. when clock remains
* in the prepared state during rate changes.
*/
return rk_hdptx_ropll_tmds_cmn_config(hdptx);
}
static const struct clk_ops hdptx_phy_clk_ops = {
.prepare = rk_hdptx_phy_clk_prepare,
.unprepare = rk_hdptx_phy_clk_unprepare,
.recalc_rate = rk_hdptx_phy_clk_recalc_rate,
.round_rate = rk_hdptx_phy_clk_round_rate,
.set_rate = rk_hdptx_phy_clk_set_rate,
};
static int rk_hdptx_phy_clk_register(struct rk_hdptx_phy *hdptx)
{
struct device *dev = hdptx->dev;
const char *name, *pname;
struct clk *refclk;
int ret;
refclk = devm_clk_get(dev, "ref");
if (IS_ERR(refclk))
return dev_err_probe(dev, PTR_ERR(refclk),
"Failed to get ref clock\n");
name = hdptx->phy_id > 0 ? "clk_hdmiphy_pixel1" : "clk_hdmiphy_pixel0";
pname = __clk_get_name(refclk);
hdptx->hw.init = CLK_HW_INIT(name, pname, &hdptx_phy_clk_ops,
CLK_GET_RATE_NOCACHE);
ret = devm_clk_hw_register(dev, &hdptx->hw);
if (ret)
return dev_err_probe(dev, ret, "Failed to register clock\n");
ret = devm_of_clk_add_hw_provider(dev, of_clk_hw_simple_get, &hdptx->hw);
if (ret)
return dev_err_probe(dev, ret,
"Failed to register clk provider\n");
return 0;
}
static int rk_hdptx_phy_runtime_suspend(struct device *dev)
{
struct rk_hdptx_phy *hdptx = dev_get_drvdata(dev);
clk_bulk_disable_unprepare(hdptx->nr_clks, hdptx->clks);
return 0;
}
static int rk_hdptx_phy_runtime_resume(struct device *dev)
{
struct rk_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 rk_hdptx_phy_probe(struct platform_device *pdev)
{
const struct rk_hdptx_phy_cfg *cfgs;
struct phy_provider *phy_provider;
struct device *dev = &pdev->dev;
struct rk_hdptx_phy *hdptx;
struct resource *res;
void __iomem *regs;
int ret, id;
hdptx = devm_kzalloc(dev, sizeof(*hdptx), GFP_KERNEL);
if (!hdptx)
return -ENOMEM;
hdptx->dev = dev;
hdptx->hdmi_cfg.bpc = 8;
regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
if (IS_ERR(regs))
return dev_err_probe(dev, PTR_ERR(regs),
"Failed to ioremap resource\n");
cfgs = device_get_match_data(dev);
if (!cfgs)
return dev_err_probe(dev, -EINVAL, "missing match data\n");
/* find the phy-id from the io address */
hdptx->phy_id = -ENODEV;
for (id = 0; id < cfgs->num_phys; id++) {
if (res->start == cfgs->phy_ids[id]) {
hdptx->phy_id = id;
break;
}
}
if (hdptx->phy_id < 0)
return dev_err_probe(dev, -ENODEV, "no matching device found\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,
&rk_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_APB].id = "apb";
hdptx->rsts[RST_INIT].id = "init";
hdptx->rsts[RST_CMN].id = "cmn";
hdptx->rsts[RST_LANE].id = "lane";
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");
platform_set_drvdata(pdev, hdptx);
ret = devm_pm_runtime_enable(dev);
if (ret)
return dev_err_probe(dev, ret, "Failed to enable runtime PM\n");
hdptx->phy = devm_phy_create(dev, NULL, &rk_hdptx_phy_ops);
if (IS_ERR(hdptx->phy))
return dev_err_probe(dev, PTR_ERR(hdptx->phy),
"Failed to create HDMI PHY\n");
phy_set_drvdata(hdptx->phy, hdptx);
phy_set_bus_width(hdptx->phy, 8);
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 rk_hdptx_phy_clk_register(hdptx);
}
static const struct dev_pm_ops rk_hdptx_phy_pm_ops = {
RUNTIME_PM_OPS(rk_hdptx_phy_runtime_suspend,
rk_hdptx_phy_runtime_resume, NULL)
};
static const struct rk_hdptx_phy_cfg rk3576_hdptx_phy_cfgs = {
.num_phys = 1,
.phy_ids = {
0x2b000000,
},
};
static const struct rk_hdptx_phy_cfg rk3588_hdptx_phy_cfgs = {
.num_phys = 2,
.phy_ids = {
0xfed60000,
0xfed70000,
},
};
static const struct of_device_id rk_hdptx_phy_of_match[] = {
{
.compatible = "rockchip,rk3576-hdptx-phy",
.data = &rk3576_hdptx_phy_cfgs
},
{
.compatible = "rockchip,rk3588-hdptx-phy",
.data = &rk3588_hdptx_phy_cfgs
},
{}
};
MODULE_DEVICE_TABLE(of, rk_hdptx_phy_of_match);
static struct platform_driver rk_hdptx_phy_driver = {
.probe = rk_hdptx_phy_probe,
.driver = {
.name = "rockchip-hdptx-phy",
.pm = &rk_hdptx_phy_pm_ops,
.of_match_table = rk_hdptx_phy_of_match,
},
};
module_platform_driver(rk_hdptx_phy_driver);
MODULE_AUTHOR("Algea Cao <algea.cao@rock-chips.com>");
MODULE_AUTHOR("Cristian Ciocaltea <cristian.ciocaltea@collabora.com>");
MODULE_AUTHOR("Damon Ding <damon.ding@rock-chips.com>");
MODULE_DESCRIPTION("Samsung HDMI/eDP Transmitter Combo PHY Driver");
MODULE_LICENSE("GPL");
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