linux-kernel - Re: [PATCH v7 09/10] phy: qualcomm: phy-qcom-qmp-ufs: Rectify SM8550 UFS HS-G4 PHY Settings

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Message-ID: <e7883e6b-4d65-d997-a9fb-83497e2ad8f1@quicinc.com>
Date:   Sat, 2 Dec 2023 18:11:03 +0800
From:   Can Guo <quic_cang@...cinc.com>
To:     Abel Vesa <abel.vesa@...aro.org>
CC:     <bvanassche@....org>, <mani@...nel.org>, <adrian.hunter@...el.com>,
        <vkoul@...nel.org>, <beanhuo@...ron.com>, <avri.altman@....com>,
        <junwoo80.lee@...sung.com>, <martin.petersen@...cle.com>,
        <linux-scsi@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Kishon Vijay Abraham I <kishon@...nel.org>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Johan Hovold <johan+linaro@...nel.org>,
        "open list:GENERIC PHY FRAMEWORK" <linux-phy@...ts.infradead.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v7 09/10] phy: qualcomm: phy-qcom-qmp-ufs: Rectify SM8550
 UFS HS-G4 PHY Settings


On 12/1/2023 3:42 PM, Abel Vesa wrote:
> On 23-11-30 21:03:19, Can Guo wrote:
>> The registers, which are being touched in current SM8550 UFS PHY settings,
>> and the values being programmed are mainly the ones working for HS-G4 mode,
>> meanwhile, there are also a few ones somehow taken from HS-G5 PHY settings.
>> However, even consider HS-G4 mode only, some of them are incorrect and some
>> are missing. Rectify the HS-G4 PHY settings by strictly aligning with the
>> SM8550 UFS PHY Hardware Programming Guide suggested HS-G4 PHY settings.
>>
>> Fixes: 1679bfef906f ("phy: qcom-qmp-ufs: Add SM8550 support")
>> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
>> Reviewed-by: Abel Vesa <abel.vesa@...aro.org>
>> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
>> Signed-off-by: Can Guo <quic_cang@...cinc.com>
>> ---
> Hi Can,
>
> Since you are not CC'ing everyone on all patches from this series,
> please write the changes made since the last version in every patch (if
> applicable) from now on.
>
> Thanks,
> Abel

Sure.


Thanks,

Can Guo.

>
>>   .../qualcomm/phy-qcom-qmp-qserdes-txrx-ufs-v6.h    |  1 +
>>   drivers/phy/qualcomm/phy-qcom-qmp-ufs.c            | 28 +++++++++++++++-------
>>   2 files changed, 20 insertions(+), 9 deletions(-)
>>
>> diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-qserdes-txrx-ufs-v6.h b/drivers/phy/qualcomm/phy-qcom-qmp-qserdes-txrx-ufs-v6.h
>> index ae220fd..35d497f 100644
>> --- a/drivers/phy/qualcomm/phy-qcom-qmp-qserdes-txrx-ufs-v6.h
>> +++ b/drivers/phy/qualcomm/phy-qcom-qmp-qserdes-txrx-ufs-v6.h
>> @@ -11,6 +11,7 @@
>>   #define QSERDES_UFS_V6_TX_RES_CODE_LANE_OFFSET_TX		0x30
>>   #define QSERDES_UFS_V6_TX_RES_CODE_LANE_OFFSET_RX		0x34
>>   #define QSERDES_UFS_V6_TX_LANE_MODE_1				0x7c
>> +#define QSERDES_UFS_V6_TX_FR_DCC_CTRL				0x108
>>   
>>   #define QSERDES_UFS_V6_RX_UCDR_FASTLOCK_FO_GAIN_RATE2		0x08
>>   #define QSERDES_UFS_V6_RX_UCDR_FASTLOCK_FO_GAIN_RATE4		0x10
>> diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c b/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c
>> index 5f79d18..3c2e625 100644
>> --- a/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c
>> +++ b/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c
>> @@ -763,22 +763,26 @@ static const struct qmp_phy_init_tbl sm8550_ufsphy_serdes[] = {
>>   	QMP_PHY_INIT_CFG(QSERDES_V6_COM_PLL_CCTRL_MODE0, 0x14),
>>   	QMP_PHY_INIT_CFG(QSERDES_V6_COM_LOCK_CMP1_MODE0, 0x7f),
>>   	QMP_PHY_INIT_CFG(QSERDES_V6_COM_LOCK_CMP2_MODE0, 0x06),
>> -	QMP_PHY_INIT_CFG(QSERDES_V6_COM_DEC_START_MODE0, 0x4c),
>> -	QMP_PHY_INIT_CFG(QSERDES_V6_COM_CP_CTRL_MODE0, 0x0a),
>> -	QMP_PHY_INIT_CFG(QSERDES_V6_COM_PLL_RCTRL_MODE0, 0x18),
>> -	QMP_PHY_INIT_CFG(QSERDES_V6_COM_PLL_CCTRL_MODE0, 0x14),
>> -	QMP_PHY_INIT_CFG(QSERDES_V6_COM_LOCK_CMP1_MODE0, 0x99),
>> -	QMP_PHY_INIT_CFG(QSERDES_V6_COM_LOCK_CMP2_MODE0, 0x07),
>> +	QMP_PHY_INIT_CFG(QSERDES_V6_COM_DEC_START_MODE1, 0x4c),
>> +	QMP_PHY_INIT_CFG(QSERDES_V6_COM_CP_CTRL_MODE1, 0x0a),
>> +	QMP_PHY_INIT_CFG(QSERDES_V6_COM_PLL_RCTRL_MODE1, 0x18),
>> +	QMP_PHY_INIT_CFG(QSERDES_V6_COM_PLL_CCTRL_MODE1, 0x14),
>> +	QMP_PHY_INIT_CFG(QSERDES_V6_COM_LOCK_CMP1_MODE1, 0x99),
>> +	QMP_PHY_INIT_CFG(QSERDES_V6_COM_LOCK_CMP2_MODE1, 0x07),
>> +};
>> +
>> +static const struct qmp_phy_init_tbl sm8550_ufsphy_hs_b_serdes[] = {
>> +	QMP_PHY_INIT_CFG(QSERDES_V6_COM_VCO_TUNE_MAP, 0x44),
>>   };
>>   
>>   static const struct qmp_phy_init_tbl sm8550_ufsphy_tx[] = {
>> -	QMP_PHY_INIT_CFG(QSERDES_V6_TX_LANE_MODE_1, 0x05),
>> +	QMP_PHY_INIT_CFG(QSERDES_UFS_V6_TX_LANE_MODE_1, 0x05),
>>   	QMP_PHY_INIT_CFG(QSERDES_UFS_V6_TX_RES_CODE_LANE_OFFSET_TX, 0x07),
>> +	QMP_PHY_INIT_CFG(QSERDES_UFS_V6_TX_FR_DCC_CTRL, 0x4c),
>>   };
>>   
>>   static const struct qmp_phy_init_tbl sm8550_ufsphy_rx[] = {
>> -	QMP_PHY_INIT_CFG(QSERDES_UFS_V6_RX_UCDR_FASTLOCK_FO_GAIN_RATE2, 0x0c),
>> -	QMP_PHY_INIT_CFG(QSERDES_UFS_V6_RX_UCDR_FASTLOCK_FO_GAIN_RATE4, 0x0f),
>> +	QMP_PHY_INIT_CFG(QSERDES_UFS_V6_RX_UCDR_FO_GAIN_RATE2, 0x0c),
>>   	QMP_PHY_INIT_CFG(QSERDES_UFS_V6_RX_VGA_CAL_MAN_VAL, 0x0e),
>>   
>>   	QMP_PHY_INIT_CFG(QSERDES_UFS_V6_RX_MODE_RATE_0_1_B0, 0xc2),
>> @@ -801,6 +805,8 @@ static const struct qmp_phy_init_tbl sm8550_ufsphy_pcs[] = {
>>   	QMP_PHY_INIT_CFG(QPHY_V6_PCS_UFS_TX_MID_TERM_CTRL1, 0x43),
>>   	QMP_PHY_INIT_CFG(QPHY_V6_PCS_UFS_PLL_CNTL, 0x2b),
>>   	QMP_PHY_INIT_CFG(QPHY_V6_PCS_UFS_MULTI_LANE_CTRL1, 0x02),
>> +	QMP_PHY_INIT_CFG(QPHY_V6_PCS_UFS_TX_HSGEAR_CAPABILITY, 0x04),
>> +	QMP_PHY_INIT_CFG(QPHY_V6_PCS_UFS_RX_HSGEAR_CAPABILITY, 0x04),
>>   };
>>   
>>   static const struct qmp_phy_init_tbl sm8650_ufsphy_serdes[] = {
>> @@ -1357,6 +1363,10 @@ static const struct qmp_phy_cfg sm8550_ufsphy_cfg = {
>>   		.pcs		= sm8550_ufsphy_pcs,
>>   		.pcs_num	= ARRAY_SIZE(sm8550_ufsphy_pcs),
>>   	},
>> +	.tbls_hs_b = {
>> +		.serdes		= sm8550_ufsphy_hs_b_serdes,
>> +		.serdes_num	= ARRAY_SIZE(sm8550_ufsphy_hs_b_serdes),
>> +	},
>>   	.clk_list		= sdm845_ufs_phy_clk_l,
>>   	.num_clks		= ARRAY_SIZE(sdm845_ufs_phy_clk_l),
>>   	.vreg_list		= qmp_phy_vreg_l,
>> -- 
>> 2.7.4
>>