Re: [PATCH v4 3/4] phy: qcom-qmp: Add SM8150 QMP USB3 PHY support

From: Manu Gautam
Date: Thu Apr 02 2020 - 03:01:47 EST



On 3/31/2020 1:06 AM, Wesley Cheng wrote:
> From: Jack Pham <jackp@xxxxxxxxxxxxxx>
>
> Add support for SM8150 QMP USB3 PHY with the necessary
> initialization sequences as well as additional QMP V4
> register definitions.
>
> Signed-off-by: Jack Pham <jackp@xxxxxxxxxxxxxx>
> Signed-off-by: Wesley Cheng <wcheng@xxxxxxxxxxxxxx>
> ---
> drivers/phy/qualcomm/phy-qcom-qmp.c | 153 ++++++++++++++++++++++++++++
> drivers/phy/qualcomm/phy-qcom-qmp.h | 198 +++++++++++++++++++++++++++++++++++-
> 2 files changed, 349 insertions(+), 2 deletions(-)

[snip]

>
> -/* Only for QMP V4 PHY - PCS registers */
> +/* Only for QMP V4 PHY - UFS PCS registers */
> #define QPHY_V4_PHY_START 0x000
> #define QPHY_V4_POWER_DOWN_CONTROL 0x004
> #define QPHY_V4_SW_RESET 0x008
> @@ -409,4 +446,161 @@
> #define QPHY_V4_TX_MID_TERM_CTRL1 0x1d8
> #define QPHY_V4_MULTI_LANE_CTRL1 0x1e0
>
> +/* Only for QMP V4 PHY - USB/PCIe PCS registers */
> +#define QPHY_V4_PCS_SW_RESET 0x000

It is a mess not given that UFS wrapper uses different PCS register layout:
E.g. UFS uses - QPHY_V4_SW_RESET 0x008

Would it help to add UFS prefix for UFS specific registers to avoid confusion and typos.
E.g. rename QPHY_V4_SW_RESET to QPHY_V4_UFS_PCS_SW_RESET ?

> +#define QPHY_V4_PCS_REVISION_ID0 0x004
> +#define QPHY_V4_PCS_REVISION_ID1 0x008
> +#define QPHY_V4_PCS_REVISION_ID2 0x00c
> +#define QPHY_V4_PCS_REVISION_ID3 0x010
> +#define QPHY_V4_PCS_PCS_STATUS1 0x014
> +#define QPHY_V4_PCS_PCS_STATUS2 0x018
> +#define QPHY_V4_PCS_PCS_STATUS3 0x01c
> +#define QPHY_V4_PCS_PCS_STATUS4 0x020
> +#define QPHY_V4_PCS_PCS_STATUS5 0x024
> +#define QPHY_V4_PCS_PCS_STATUS6 0x028
> +#define QPHY_V4_PCS_PCS_STATUS7 0x02c
> +#define QPHY_V4_PCS_DEBUG_BUS_0_STATUS 0x030
> +#define QPHY_V4_PCS_DEBUG_BUS_1_STATUS 0x034
> +#define QPHY_V4_PCS_DEBUG_BUS_2_STATUS 0x038
> +#define QPHY_V4_PCS_DEBUG_BUS_3_STATUS 0x03c
> +#define QPHY_V4_PCS_POWER_DOWN_CONTROL 0x040
> +#define QPHY_V4_PCS_START_CONTROL 0x044
> +#define QPHY_V4_PCS_INSIG_SW_CTRL1 0x048
> +#define QPHY_V4_PCS_INSIG_SW_CTRL2 0x04c
> +#define QPHY_V4_PCS_INSIG_SW_CTRL3 0x050
> +#define QPHY_V4_PCS_INSIG_SW_CTRL4 0x054
> +#define QPHY_V4_PCS_INSIG_SW_CTRL5 0x058
> +#define QPHY_V4_PCS_INSIG_SW_CTRL6 0x05c
> +#define QPHY_V4_PCS_INSIG_SW_CTRL7 0x060
> +#define QPHY_V4_PCS_INSIG_SW_CTRL8 0x064
> +#define QPHY_V4_PCS_INSIG_MX_CTRL1 0x068
> +#define QPHY_V4_PCS_INSIG_MX_CTRL2 0x06c
> +#define QPHY_V4_PCS_INSIG_MX_CTRL3 0x070
> +#define QPHY_V4_PCS_INSIG_MX_CTRL4 0x074
> +#define QPHY_V4_PCS_INSIG_MX_CTRL5 0x078
> +#define QPHY_V4_PCS_INSIG_MX_CTRL7 0x07c
> +#define QPHY_V4_PCS_INSIG_MX_CTRL8 0x080
> +#define QPHY_V4_PCS_OUTSIG_SW_CTRL1 0x084
> +#define QPHY_V4_PCS_OUTSIG_MX_CTRL1 0x088
> +#define QPHY_V4_PCS_CLAMP_ENABLE 0x08c
> +#define QPHY_V4_PCS_POWER_STATE_CONFIG1 0x090
> +#define QPHY_V4_PCS_POWER_STATE_CONFIG2 0x094
> +#define QPHY_V4_PCS_FLL_CNTRL1 0x098
> +#define QPHY_V4_PCS_FLL_CNTRL2 0x09c
> +#define QPHY_V4_PCS_FLL_CNT_VAL_L 0x0a0
> +#define QPHY_V4_PCS_FLL_CNT_VAL_H_TOL 0x0a4
> +#define QPHY_V4_PCS_FLL_MAN_CODE 0x0a8
> +#define QPHY_V4_PCS_TEST_CONTROL1 0x0ac
> +#define QPHY_V4_PCS_TEST_CONTROL2 0x0b0
> +#define QPHY_V4_PCS_TEST_CONTROL3 0x0b4
> +#define QPHY_V4_PCS_TEST_CONTROL4 0x0b8
> +#define QPHY_V4_PCS_TEST_CONTROL5 0x0bc
> +#define QPHY_V4_PCS_TEST_CONTROL6 0x0c0
> +#define QPHY_V4_PCS_LOCK_DETECT_CONFIG1 0x0c4
> +#define QPHY_V4_PCS_LOCK_DETECT_CONFIG2 0x0c8
> +#define QPHY_V4_PCS_LOCK_DETECT_CONFIG3 0x0cc
> +#define QPHY_V4_PCS_LOCK_DETECT_CONFIG4 0x0d0
> +#define QPHY_V4_PCS_LOCK_DETECT_CONFIG5 0x0d4
> +#define QPHY_V4_PCS_LOCK_DETECT_CONFIG6 0x0d8
> +#define QPHY_V4_PCS_REFGEN_REQ_CONFIG1 0x0dc
> +#define QPHY_V4_PCS_REFGEN_REQ_CONFIG2 0x0e0
> +#define QPHY_V4_PCS_REFGEN_REQ_CONFIG3 0x0e4
> +#define QPHY_V4_PCS_BIST_CTRL 0x0e8
> +#define QPHY_V4_PCS_PRBS_POLY0 0x0ec
> +#define QPHY_V4_PCS_PRBS_POLY1 0x0f0
> +#define QPHY_V4_PCS_FIXED_PAT0 0x0f4
> +#define QPHY_V4_PCS_FIXED_PAT1 0x0f8
> +#define QPHY_V4_PCS_FIXED_PAT2 0x0fc
> +#define QPHY_V4_PCS_FIXED_PAT3 0x100
> +#define QPHY_V4_PCS_FIXED_PAT4 0x104
> +#define QPHY_V4_PCS_FIXED_PAT5 0x108
> +#define QPHY_V4_PCS_FIXED_PAT6 0x10c
> +#define QPHY_V4_PCS_FIXED_PAT7 0x110
> +#define QPHY_V4_PCS_FIXED_PAT8 0x114
> +#define QPHY_V4_PCS_FIXED_PAT9 0x118
> +#define QPHY_V4_PCS_FIXED_PAT10 0x11c
> +#define QPHY_V4_PCS_FIXED_PAT11 0x120
> +#define QPHY_V4_PCS_FIXED_PAT12 0x124
> +#define QPHY_V4_PCS_FIXED_PAT13 0x128
> +#define QPHY_V4_PCS_FIXED_PAT14 0x12c
> +#define QPHY_V4_PCS_FIXED_PAT15 0x130
> +#define QPHY_V4_PCS_TXMGN_CONFIG 0x134
> +#define QPHY_V4_PCS_G12S1_TXMGN_V0 0x138
> +#define QPHY_V4_PCS_G12S1_TXMGN_V1 0x13c
> +#define QPHY_V4_PCS_G12S1_TXMGN_V2 0x140
> +#define QPHY_V4_PCS_G12S1_TXMGN_V3 0x144
> +#define QPHY_V4_PCS_G12S1_TXMGN_V4 0x148
> +#define QPHY_V4_PCS_G12S1_TXMGN_V0_RS 0x14c
> +#define QPHY_V4_PCS_G12S1_TXMGN_V1_RS 0x150
> +#define QPHY_V4_PCS_G12S1_TXMGN_V2_RS 0x154
> +#define QPHY_V4_PCS_G12S1_TXMGN_V3_RS 0x158
> +#define QPHY_V4_PCS_G12S1_TXMGN_V4_RS 0x15c
> +#define QPHY_V4_PCS_G3S2_TXMGN_MAIN 0x160
> +#define QPHY_V4_PCS_G3S2_TXMGN_MAIN_RS 0x164
> +#define QPHY_V4_PCS_G12S1_TXDEEMPH_M6DB 0x168
> +#define QPHY_V4_PCS_G12S1_TXDEEMPH_M3P5DB 0x16c
> +#define QPHY_V4_PCS_G3S2_PRE_GAIN 0x170
> +#define QPHY_V4_PCS_G3S2_POST_GAIN 0x174
> +#define QPHY_V4_PCS_G3S2_PRE_POST_OFFSET 0x178
> +#define QPHY_V4_PCS_G3S2_PRE_GAIN_RS 0x17c
> +#define QPHY_V4_PCS_G3S2_POST_GAIN_RS 0x180
> +#define QPHY_V4_PCS_G3S2_PRE_POST_OFFSET_RS 0x184
> +#define QPHY_V4_PCS_RX_SIGDET_LVL 0x188
> +#define QPHY_V4_PCS_RX_SIGDET_DTCT_CNTRL 0x18c
> +#define QPHY_V4_PCS_RCVR_DTCT_DLY_P1U2_L 0x190
> +#define QPHY_V4_PCS_RCVR_DTCT_DLY_P1U2_H 0x194
> +#define QPHY_V4_PCS_RATE_SLEW_CNTRL1 0x198
> +#define QPHY_V4_PCS_RATE_SLEW_CNTRL2 0x19c
> +#define QPHY_V4_PCS_PWRUP_RESET_DLY_TIME_AUXCLK 0x1a0
> +#define QPHY_V4_PCS_P2U3_WAKEUP_DLY_TIME_AUXCLK_L 0x1a4
> +#define QPHY_V4_PCS_P2U3_WAKEUP_DLY_TIME_AUXCLK_H 0x1a8
> +#define QPHY_V4_PCS_TSYNC_RSYNC_TIME 0x1ac
> +#define QPHY_V4_PCS_CDR_RESET_TIME 0x1b0
> +#define QPHY_V4_PCS_TSYNC_DLY_TIME 0x1b4
> +#define QPHY_V4_PCS_ELECIDLE_DLY_SEL 0x1b8
> +#define QPHY_V4_PCS_CMN_ACK_OUT_SEL 0x1bc
> +#define QPHY_V4_PCS_ALIGN_DETECT_CONFIG1 0x1c0
> +#define QPHY_V4_PCS_ALIGN_DETECT_CONFIG2 0x1c4
> +#define QPHY_V4_PCS_ALIGN_DETECT_CONFIG3 0x1c8
> +#define QPHY_V4_PCS_ALIGN_DETECT_CONFIG4 0x1cc
> +#define QPHY_V4_PCS_PCS_TX_RX_CONFIG 0x1d0
> +#define QPHY_V4_PCS_RX_IDLE_DTCT_CNTRL 0x1d4
> +#define QPHY_V4_PCS_RX_DCC_CAL_CONFIG 0x1d8
> +#define QPHY_V4_PCS_EQ_CONFIG1 0x1dc
> +#define QPHY_V4_PCS_EQ_CONFIG2 0x1e0
> +#define QPHY_V4_PCS_EQ_CONFIG3 0x1e4
> +#define QPHY_V4_PCS_EQ_CONFIG4 0x1e8
> +#define QPHY_V4_PCS_EQ_CONFIG5 0x1ec
> +#define QPHY_V4_PCS_USB3_POWER_STATE_CONFIG1 0x300
> +#define QPHY_V4_PCS_USB3_AUTONOMOUS_MODE_STATUS 0x304
> +#define QPHY_V4_PCS_USB3_AUTONOMOUS_MODE_CTRL 0x308
> +#define QPHY_V4_PCS_USB3_AUTONOMOUS_MODE_CTRL2 0x30c
> +#define QPHY_V4_PCS_USB3_LFPS_RXTERM_IRQ_SOURCE_STATUS 0x310
> +#define QPHY_V4_PCS_USB3_LFPS_RXTERM_IRQ_CLEAR 0x314
> +#define QPHY_V4_PCS_USB3_LFPS_DET_HIGH_COUNT_VAL 0x318
> +#define QPHY_V4_PCS_USB3_LFPS_TX_ECSTART 0x31c
> +#define QPHY_V4_PCS_USB3_LFPS_PER_TIMER_VAL 0x320
> +#define QPHY_V4_PCS_USB3_LFPS_TX_END_CNT_U3_START 0x324
> +#define QPHY_V4_PCS_USB3_RXEQTRAINING_LOCK_TIME 0x328
> +#define QPHY_V4_PCS_USB3_RXEQTRAINING_WAIT_TIME 0x32c
> +#define QPHY_V4_PCS_USB3_RXEQTRAINING_CTLE_TIME 0x330
> +#define QPHY_V4_PCS_USB3_RXEQTRAINING_WAIT_TIME_S2 0x334
> +#define QPHY_V4_PCS_USB3_RXEQTRAINING_DFE_TIME_S2 0x338
> +#define QPHY_V4_PCS_USB3_RCVR_DTCT_DLY_U3_L 0x33c
> +#define QPHY_V4_PCS_USB3_RCVR_DTCT_DLY_U3_H 0x340
> +#define QPHY_V4_PCS_USB3_ARCVR_DTCT_EN_PERIOD 0x344
> +#define QPHY_V4_PCS_USB3_ARCVR_DTCT_CM_DLY 0x348
> +#define QPHY_V4_PCS_USB3_TXONESZEROS_RUN_LENGTH 0x34c
> +#define QPHY_V4_PCS_USB3_ALFPS_DEGLITCH_VAL 0x350
> +#define QPHY_V4_PCS_USB3_SIGDET_STARTUP_TIMER_VAL 0x354
> +#define QPHY_V4_PCS_USB3_TEST_CONTROL 0x358
> +
> +/* Only for QMP V4 PHY - PCS_MISC registers */
> +#define QPHY_V4_PCS_MISC_TYPEC_CTRL 0x00
> +#define QPHY_V4_PCS_MISC_TYPEC_PWRDN_CTRL 0x04
> +#define QPHY_V4_PCS_MISC_PCS_MISC_CONFIG1 0x08
> +#define QPHY_V4_PCS_MISC_CLAMP_ENABLE 0x0c
> +#define QPHY_V4_PCS_MISC_TYPEC_STATUS 0x10
> +#define QPHY_V4_PCS_MISC_PLACEHOLDER_STATUS 0x14
> +
> #endif

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