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[PATCH 2/5] phy: qcom: edp: Introduce aux_cfg array for version specific aux settings

Soutrik Mukhopadhyay posted 5 patches 2 months, 2 weeks ago
There is a newer version of this series
[PATCH 2/5] phy: qcom: edp: Introduce aux_cfg array for version specific aux settings
Posted by Soutrik Mukhopadhyay 2 months, 2 weeks ago 
In order to support different HW versions, introduce aux_cfg array
to move v4 specific aux configuration settings.

Signed-off-by: Soutrik Mukhopadhyay <quic_mukhopad@quicinc.com>
---
 drivers/phy/qualcomm/phy-qcom-edp.c | 34 +++++++++++++++++------------
 1 file changed, 20 insertions(+), 14 deletions(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-edp.c b/drivers/phy/qualcomm/phy-qcom-edp.c
index da2b32fb5b45..0f860a807d1b 100644
--- a/drivers/phy/qualcomm/phy-qcom-edp.c
+++ b/drivers/phy/qualcomm/phy-qcom-edp.c
@@ -90,6 +90,7 @@ struct phy_ver_ops {
 
 struct qcom_edp_phy_cfg {
 	bool is_edp;
+	u8 *aux_cfg;
 	const struct qcom_edp_swing_pre_emph_cfg *swing_pre_emph_cfg;
 	const struct phy_ver_ops *ver_ops;
 };
@@ -186,11 +187,14 @@ static const struct qcom_edp_swing_pre_emph_cfg edp_phy_swing_pre_emph_cfg = {
 	.pre_emphasis_hbr3_hbr2 = &edp_pre_emp_hbr2_hbr3,
 };
 
+static u8 edp_phy_aux_cfg_v4[10] = {
+	0x00, 0x13, 0x24, 0x00, 0x0a, 0x26, 0x0a, 0x03, 0x37, 0x03
+};
+
 static int qcom_edp_phy_init(struct phy *phy)
 {
 	struct qcom_edp *edp = phy_get_drvdata(phy);
 	int ret;
-	u8 cfg8;
 
 	ret = regulator_bulk_enable(ARRAY_SIZE(edp->supplies), edp->supplies);
 	if (ret)
@@ -222,22 +226,20 @@ static int qcom_edp_phy_init(struct phy *phy)
 	 * even needed.
 	 */
 	if (edp->cfg->swing_pre_emph_cfg && !edp->is_edp)
-		cfg8 = 0xb7;
-	else
-		cfg8 = 0x37;
+		edp->cfg->aux_cfg[8] = 0xb7;
 
 	writel(0xfc, edp->edp + DP_PHY_MODE);
 
-	writel(0x00, edp->edp + DP_PHY_AUX_CFG0);
-	writel(0x13, edp->edp + DP_PHY_AUX_CFG1);
-	writel(0x24, edp->edp + DP_PHY_AUX_CFG2);
-	writel(0x00, edp->edp + DP_PHY_AUX_CFG3);
-	writel(0x0a, edp->edp + DP_PHY_AUX_CFG4);
-	writel(0x26, edp->edp + DP_PHY_AUX_CFG5);
-	writel(0x0a, edp->edp + DP_PHY_AUX_CFG6);
-	writel(0x03, edp->edp + DP_PHY_AUX_CFG7);
-	writel(cfg8, edp->edp + DP_PHY_AUX_CFG8);
-	writel(0x03, edp->edp + DP_PHY_AUX_CFG9);
+	writel(edp->cfg->aux_cfg[0], edp->edp + DP_PHY_AUX_CFG0);
+	writel(edp->cfg->aux_cfg[1], edp->edp + DP_PHY_AUX_CFG1);
+	writel(edp->cfg->aux_cfg[2], edp->edp + DP_PHY_AUX_CFG2);
+	writel(edp->cfg->aux_cfg[3], edp->edp + DP_PHY_AUX_CFG3);
+	writel(edp->cfg->aux_cfg[4], edp->edp + DP_PHY_AUX_CFG4);
+	writel(edp->cfg->aux_cfg[5], edp->edp + DP_PHY_AUX_CFG5);
+	writel(edp->cfg->aux_cfg[6], edp->edp + DP_PHY_AUX_CFG6);
+	writel(edp->cfg->aux_cfg[7], edp->edp + DP_PHY_AUX_CFG7);
+	writel(edp->cfg->aux_cfg[8], edp->edp + DP_PHY_AUX_CFG8);
+	writel(edp->cfg->aux_cfg[9], edp->edp + DP_PHY_AUX_CFG9);
 
 	writel(PHY_AUX_STOP_ERR_MASK | PHY_AUX_DEC_ERR_MASK |
 	       PHY_AUX_SYNC_ERR_MASK | PHY_AUX_ALIGN_ERR_MASK |
@@ -519,16 +521,19 @@ static const struct phy_ver_ops qcom_edp_phy_ops_v4 = {
 };
 
 static const struct qcom_edp_phy_cfg sc7280_dp_phy_cfg = {
+	.aux_cfg = edp_phy_aux_cfg_v4,
 	.ver_ops = &qcom_edp_phy_ops_v4,
 };
 
 static const struct qcom_edp_phy_cfg sc8280xp_dp_phy_cfg = {
+	.aux_cfg = edp_phy_aux_cfg_v4,
 	.swing_pre_emph_cfg = &dp_phy_swing_pre_emph_cfg,
 	.ver_ops = &qcom_edp_phy_ops_v4,
 };
 
 static const struct qcom_edp_phy_cfg sc8280xp_edp_phy_cfg = {
 	.is_edp = true,
+	.aux_cfg = edp_phy_aux_cfg_v4,
 	.swing_pre_emph_cfg = &edp_phy_swing_pre_emph_cfg,
 	.ver_ops = &qcom_edp_phy_ops_v4,
 };
@@ -707,6 +712,7 @@ static const struct phy_ver_ops qcom_edp_phy_ops_v6 = {
 };
 
 static struct qcom_edp_phy_cfg x1e80100_phy_cfg = {
+	.aux_cfg = edp_phy_aux_cfg_v4,
 	.swing_pre_emph_cfg = &dp_phy_swing_pre_emph_cfg,
 	.ver_ops = &qcom_edp_phy_ops_v6,
 };
-- 
2.17.1
Re: [PATCH 2/5] phy: qcom: edp: Introduce aux_cfg array for version specific aux settings
Posted by Bjorn Andersson 2 months, 2 weeks ago 
On Wed, Sep 11, 2024 at 03:38:10PM +0530, Soutrik Mukhopadhyay wrote:
> In order to support different HW versions, introduce aux_cfg array
> to move v4 specific aux configuration settings.
> 
> Signed-off-by: Soutrik Mukhopadhyay <quic_mukhopad@quicinc.com>
> ---
>  drivers/phy/qualcomm/phy-qcom-edp.c | 34 +++++++++++++++++------------
>  1 file changed, 20 insertions(+), 14 deletions(-)
> 
> diff --git a/drivers/phy/qualcomm/phy-qcom-edp.c b/drivers/phy/qualcomm/phy-qcom-edp.c
> index da2b32fb5b45..0f860a807d1b 100644
> --- a/drivers/phy/qualcomm/phy-qcom-edp.c
> +++ b/drivers/phy/qualcomm/phy-qcom-edp.c
> @@ -90,6 +90,7 @@ struct phy_ver_ops {
>  
>  struct qcom_edp_phy_cfg {
>  	bool is_edp;
> +	u8 *aux_cfg;
>  	const struct qcom_edp_swing_pre_emph_cfg *swing_pre_emph_cfg;
>  	const struct phy_ver_ops *ver_ops;
>  };
> @@ -186,11 +187,14 @@ static const struct qcom_edp_swing_pre_emph_cfg edp_phy_swing_pre_emph_cfg = {
>  	.pre_emphasis_hbr3_hbr2 = &edp_pre_emp_hbr2_hbr3,
>  };
>  
> +static u8 edp_phy_aux_cfg_v4[10] = {
> +	0x00, 0x13, 0x24, 0x00, 0x0a, 0x26, 0x0a, 0x03, 0x37, 0x03
> +};
> +
>  static int qcom_edp_phy_init(struct phy *phy)
>  {
>  	struct qcom_edp *edp = phy_get_drvdata(phy);
>  	int ret;
> -	u8 cfg8;
>  
>  	ret = regulator_bulk_enable(ARRAY_SIZE(edp->supplies), edp->supplies);
>  	if (ret)
> @@ -222,22 +226,20 @@ static int qcom_edp_phy_init(struct phy *phy)
>  	 * even needed.
>  	 */
>  	if (edp->cfg->swing_pre_emph_cfg && !edp->is_edp)
> -		cfg8 = 0xb7;
> -	else
> -		cfg8 = 0x37;
> +		edp->cfg->aux_cfg[8] = 0xb7;

If you have multiple instances of the eDP PHY they will all point to the
same edp_phy_aux_cfg_v4[], so making instance-specific modifications
to that array will not be okay.


Make edp_phy_aux_cfg_v4[] const to reduce the likelihood for someone
else to make this mistake in the future and make a local copy of the
array on the stack so that you can modify it.

Regards,
Bjorn

>  
>  	writel(0xfc, edp->edp + DP_PHY_MODE);
>  
> -	writel(0x00, edp->edp + DP_PHY_AUX_CFG0);
> -	writel(0x13, edp->edp + DP_PHY_AUX_CFG1);
> -	writel(0x24, edp->edp + DP_PHY_AUX_CFG2);
> -	writel(0x00, edp->edp + DP_PHY_AUX_CFG3);
> -	writel(0x0a, edp->edp + DP_PHY_AUX_CFG4);
> -	writel(0x26, edp->edp + DP_PHY_AUX_CFG5);
> -	writel(0x0a, edp->edp + DP_PHY_AUX_CFG6);
> -	writel(0x03, edp->edp + DP_PHY_AUX_CFG7);
> -	writel(cfg8, edp->edp + DP_PHY_AUX_CFG8);
> -	writel(0x03, edp->edp + DP_PHY_AUX_CFG9);
> +	writel(edp->cfg->aux_cfg[0], edp->edp + DP_PHY_AUX_CFG0);
> +	writel(edp->cfg->aux_cfg[1], edp->edp + DP_PHY_AUX_CFG1);
> +	writel(edp->cfg->aux_cfg[2], edp->edp + DP_PHY_AUX_CFG2);
> +	writel(edp->cfg->aux_cfg[3], edp->edp + DP_PHY_AUX_CFG3);
> +	writel(edp->cfg->aux_cfg[4], edp->edp + DP_PHY_AUX_CFG4);
> +	writel(edp->cfg->aux_cfg[5], edp->edp + DP_PHY_AUX_CFG5);
> +	writel(edp->cfg->aux_cfg[6], edp->edp + DP_PHY_AUX_CFG6);
> +	writel(edp->cfg->aux_cfg[7], edp->edp + DP_PHY_AUX_CFG7);
> +	writel(edp->cfg->aux_cfg[8], edp->edp + DP_PHY_AUX_CFG8);
> +	writel(edp->cfg->aux_cfg[9], edp->edp + DP_PHY_AUX_CFG9);
>  
>  	writel(PHY_AUX_STOP_ERR_MASK | PHY_AUX_DEC_ERR_MASK |
>  	       PHY_AUX_SYNC_ERR_MASK | PHY_AUX_ALIGN_ERR_MASK |
> @@ -519,16 +521,19 @@ static const struct phy_ver_ops qcom_edp_phy_ops_v4 = {
>  };
>  
>  static const struct qcom_edp_phy_cfg sc7280_dp_phy_cfg = {
> +	.aux_cfg = edp_phy_aux_cfg_v4,
>  	.ver_ops = &qcom_edp_phy_ops_v4,
>  };
>  
>  static const struct qcom_edp_phy_cfg sc8280xp_dp_phy_cfg = {
> +	.aux_cfg = edp_phy_aux_cfg_v4,
>  	.swing_pre_emph_cfg = &dp_phy_swing_pre_emph_cfg,
>  	.ver_ops = &qcom_edp_phy_ops_v4,
>  };
>  
>  static const struct qcom_edp_phy_cfg sc8280xp_edp_phy_cfg = {
>  	.is_edp = true,
> +	.aux_cfg = edp_phy_aux_cfg_v4,
>  	.swing_pre_emph_cfg = &edp_phy_swing_pre_emph_cfg,
>  	.ver_ops = &qcom_edp_phy_ops_v4,
>  };
> @@ -707,6 +712,7 @@ static const struct phy_ver_ops qcom_edp_phy_ops_v6 = {
>  };
>  
>  static struct qcom_edp_phy_cfg x1e80100_phy_cfg = {
> +	.aux_cfg = edp_phy_aux_cfg_v4,
>  	.swing_pre_emph_cfg = &dp_phy_swing_pre_emph_cfg,
>  	.ver_ops = &qcom_edp_phy_ops_v6,
>  };
> -- 
> 2.17.1
>
Re: [PATCH 2/5] phy: qcom: edp: Introduce aux_cfg array for version specific aux settings
Posted by Soutrik Mukhopadhyay 2 months, 2 weeks ago 
On 9/12/2024 7:15 AM, Bjorn Andersson wrote:
> On Wed, Sep 11, 2024 at 03:38:10PM +0530, Soutrik Mukhopadhyay wrote:
>> In order to support different HW versions, introduce aux_cfg array
>> to move v4 specific aux configuration settings.
>>
>> Signed-off-by: Soutrik Mukhopadhyay <quic_mukhopad@quicinc.com>
>> ---
>>   drivers/phy/qualcomm/phy-qcom-edp.c | 34 +++++++++++++++++------------
>>   1 file changed, 20 insertions(+), 14 deletions(-)
>>
>> diff --git a/drivers/phy/qualcomm/phy-qcom-edp.c b/drivers/phy/qualcomm/phy-qcom-edp.c
>> index da2b32fb5b45..0f860a807d1b 100644
>> --- a/drivers/phy/qualcomm/phy-qcom-edp.c
>> +++ b/drivers/phy/qualcomm/phy-qcom-edp.c
>> @@ -90,6 +90,7 @@ struct phy_ver_ops {
>>   
>>   struct qcom_edp_phy_cfg {
>>   	bool is_edp;
>> +	u8 *aux_cfg;
>>   	const struct qcom_edp_swing_pre_emph_cfg *swing_pre_emph_cfg;
>>   	const struct phy_ver_ops *ver_ops;
>>   };
>> @@ -186,11 +187,14 @@ static const struct qcom_edp_swing_pre_emph_cfg edp_phy_swing_pre_emph_cfg = {
>>   	.pre_emphasis_hbr3_hbr2 = &edp_pre_emp_hbr2_hbr3,
>>   };
>>   
>> +static u8 edp_phy_aux_cfg_v4[10] = {
>> +	0x00, 0x13, 0x24, 0x00, 0x0a, 0x26, 0x0a, 0x03, 0x37, 0x03
>> +};
>> +
>>   static int qcom_edp_phy_init(struct phy *phy)
>>   {
>>   	struct qcom_edp *edp = phy_get_drvdata(phy);
>>   	int ret;
>> -	u8 cfg8;
>>   
>>   	ret = regulator_bulk_enable(ARRAY_SIZE(edp->supplies), edp->supplies);
>>   	if (ret)
>> @@ -222,22 +226,20 @@ static int qcom_edp_phy_init(struct phy *phy)
>>   	 * even needed.
>>   	 */
>>   	if (edp->cfg->swing_pre_emph_cfg && !edp->is_edp)
>> -		cfg8 = 0xb7;
>> -	else
>> -		cfg8 = 0x37;
>> +		edp->cfg->aux_cfg[8] = 0xb7;
> If you have multiple instances of the eDP PHY they will all point to the
> same edp_phy_aux_cfg_v4[], so making instance-specific modifications
> to that array will not be okay.
>
>
> Make edp_phy_aux_cfg_v4[] const to reduce the likelihood for someone
> else to make this mistake in the future and make a local copy of the
> array on the stack so that you can modify it.
>
> Regards,
> Bjorn


Sure, we will change edp_phy_aux_cfg_v4[] to const and use local copy to 
modify it.


>
>>   
>>   	writel(0xfc, edp->edp + DP_PHY_MODE);
>>   
>> -	writel(0x00, edp->edp + DP_PHY_AUX_CFG0);
>> -	writel(0x13, edp->edp + DP_PHY_AUX_CFG1);
>> -	writel(0x24, edp->edp + DP_PHY_AUX_CFG2);
>> -	writel(0x00, edp->edp + DP_PHY_AUX_CFG3);
>> -	writel(0x0a, edp->edp + DP_PHY_AUX_CFG4);
>> -	writel(0x26, edp->edp + DP_PHY_AUX_CFG5);
>> -	writel(0x0a, edp->edp + DP_PHY_AUX_CFG6);
>> -	writel(0x03, edp->edp + DP_PHY_AUX_CFG7);
>> -	writel(cfg8, edp->edp + DP_PHY_AUX_CFG8);
>> -	writel(0x03, edp->edp + DP_PHY_AUX_CFG9);
>> +	writel(edp->cfg->aux_cfg[0], edp->edp + DP_PHY_AUX_CFG0);
>> +	writel(edp->cfg->aux_cfg[1], edp->edp + DP_PHY_AUX_CFG1);
>> +	writel(edp->cfg->aux_cfg[2], edp->edp + DP_PHY_AUX_CFG2);
>> +	writel(edp->cfg->aux_cfg[3], edp->edp + DP_PHY_AUX_CFG3);
>> +	writel(edp->cfg->aux_cfg[4], edp->edp + DP_PHY_AUX_CFG4);
>> +	writel(edp->cfg->aux_cfg[5], edp->edp + DP_PHY_AUX_CFG5);
>> +	writel(edp->cfg->aux_cfg[6], edp->edp + DP_PHY_AUX_CFG6);
>> +	writel(edp->cfg->aux_cfg[7], edp->edp + DP_PHY_AUX_CFG7);
>> +	writel(edp->cfg->aux_cfg[8], edp->edp + DP_PHY_AUX_CFG8);
>> +	writel(edp->cfg->aux_cfg[9], edp->edp + DP_PHY_AUX_CFG9);
>>   
>>   	writel(PHY_AUX_STOP_ERR_MASK | PHY_AUX_DEC_ERR_MASK |
>>   	       PHY_AUX_SYNC_ERR_MASK | PHY_AUX_ALIGN_ERR_MASK |
>> @@ -519,16 +521,19 @@ static const struct phy_ver_ops qcom_edp_phy_ops_v4 = {
>>   };
>>   
>>   static const struct qcom_edp_phy_cfg sc7280_dp_phy_cfg = {
>> +	.aux_cfg = edp_phy_aux_cfg_v4,
>>   	.ver_ops = &qcom_edp_phy_ops_v4,
>>   };
>>   
>>   static const struct qcom_edp_phy_cfg sc8280xp_dp_phy_cfg = {
>> +	.aux_cfg = edp_phy_aux_cfg_v4,
>>   	.swing_pre_emph_cfg = &dp_phy_swing_pre_emph_cfg,
>>   	.ver_ops = &qcom_edp_phy_ops_v4,
>>   };
>>   
>>   static const struct qcom_edp_phy_cfg sc8280xp_edp_phy_cfg = {
>>   	.is_edp = true,
>> +	.aux_cfg = edp_phy_aux_cfg_v4,
>>   	.swing_pre_emph_cfg = &edp_phy_swing_pre_emph_cfg,
>>   	.ver_ops = &qcom_edp_phy_ops_v4,
>>   };
>> @@ -707,6 +712,7 @@ static const struct phy_ver_ops qcom_edp_phy_ops_v6 = {
>>   };
>>   
>>   static struct qcom_edp_phy_cfg x1e80100_phy_cfg = {
>> +	.aux_cfg = edp_phy_aux_cfg_v4,
>>   	.swing_pre_emph_cfg = &dp_phy_swing_pre_emph_cfg,
>>   	.ver_ops = &qcom_edp_phy_ops_v6,
>>   };
>> -- 
>> 2.17.1
>>
Re: [PATCH 2/5] phy: qcom: edp: Introduce aux_cfg array for version specific aux settings
Posted by Dmitry Baryshkov 2 months, 2 weeks ago 
On Wed, 11 Sept 2024 at 13:08, Soutrik Mukhopadhyay
<quic_mukhopad@quicinc.com> wrote:
>
> In order to support different HW versions, introduce aux_cfg array
> to move v4 specific aux configuration settings.
>
> Signed-off-by: Soutrik Mukhopadhyay <quic_mukhopad@quicinc.com>
> ---
>  drivers/phy/qualcomm/phy-qcom-edp.c | 34 +++++++++++++++++------------
>  1 file changed, 20 insertions(+), 14 deletions(-)
>
> diff --git a/drivers/phy/qualcomm/phy-qcom-edp.c b/drivers/phy/qualcomm/phy-qcom-edp.c
> index da2b32fb5b45..0f860a807d1b 100644
> --- a/drivers/phy/qualcomm/phy-qcom-edp.c
> +++ b/drivers/phy/qualcomm/phy-qcom-edp.c
> @@ -90,6 +90,7 @@ struct phy_ver_ops {
>
>  struct qcom_edp_phy_cfg {
>         bool is_edp;
> +       u8 *aux_cfg;
>         const struct qcom_edp_swing_pre_emph_cfg *swing_pre_emph_cfg;
>         const struct phy_ver_ops *ver_ops;
>  };
> @@ -186,11 +187,14 @@ static const struct qcom_edp_swing_pre_emph_cfg edp_phy_swing_pre_emph_cfg = {
>         .pre_emphasis_hbr3_hbr2 = &edp_pre_emp_hbr2_hbr3,
>  };
>
> +static u8 edp_phy_aux_cfg_v4[10] = {

static const u8, please.


> +       0x00, 0x13, 0x24, 0x00, 0x0a, 0x26, 0x0a, 0x03, 0x37, 0x03
> +};
> +
>  static int qcom_edp_phy_init(struct phy *phy)
>  {
>         struct qcom_edp *edp = phy_get_drvdata(phy);
>         int ret;
> -       u8 cfg8;
>
>         ret = regulator_bulk_enable(ARRAY_SIZE(edp->supplies), edp->supplies);
>         if (ret)
> @@ -222,22 +226,20 @@ static int qcom_edp_phy_init(struct phy *phy)
>          * even needed.
>          */
>         if (edp->cfg->swing_pre_emph_cfg && !edp->is_edp)
> -               cfg8 = 0xb7;
> -       else
> -               cfg8 = 0x37;
> +               edp->cfg->aux_cfg[8] = 0xb7;
>
>         writel(0xfc, edp->edp + DP_PHY_MODE);
>
> -       writel(0x00, edp->edp + DP_PHY_AUX_CFG0);
> -       writel(0x13, edp->edp + DP_PHY_AUX_CFG1);
> -       writel(0x24, edp->edp + DP_PHY_AUX_CFG2);
> -       writel(0x00, edp->edp + DP_PHY_AUX_CFG3);
> -       writel(0x0a, edp->edp + DP_PHY_AUX_CFG4);
> -       writel(0x26, edp->edp + DP_PHY_AUX_CFG5);
> -       writel(0x0a, edp->edp + DP_PHY_AUX_CFG6);
> -       writel(0x03, edp->edp + DP_PHY_AUX_CFG7);
> -       writel(cfg8, edp->edp + DP_PHY_AUX_CFG8);
> -       writel(0x03, edp->edp + DP_PHY_AUX_CFG9);
> +       writel(edp->cfg->aux_cfg[0], edp->edp + DP_PHY_AUX_CFG0);
> +       writel(edp->cfg->aux_cfg[1], edp->edp + DP_PHY_AUX_CFG1);
> +       writel(edp->cfg->aux_cfg[2], edp->edp + DP_PHY_AUX_CFG2);
> +       writel(edp->cfg->aux_cfg[3], edp->edp + DP_PHY_AUX_CFG3);
> +       writel(edp->cfg->aux_cfg[4], edp->edp + DP_PHY_AUX_CFG4);
> +       writel(edp->cfg->aux_cfg[5], edp->edp + DP_PHY_AUX_CFG5);
> +       writel(edp->cfg->aux_cfg[6], edp->edp + DP_PHY_AUX_CFG6);
> +       writel(edp->cfg->aux_cfg[7], edp->edp + DP_PHY_AUX_CFG7);
> +       writel(edp->cfg->aux_cfg[8], edp->edp + DP_PHY_AUX_CFG8);
> +       writel(edp->cfg->aux_cfg[9], edp->edp + DP_PHY_AUX_CFG9);
>
>         writel(PHY_AUX_STOP_ERR_MASK | PHY_AUX_DEC_ERR_MASK |
>                PHY_AUX_SYNC_ERR_MASK | PHY_AUX_ALIGN_ERR_MASK |
> @@ -519,16 +521,19 @@ static const struct phy_ver_ops qcom_edp_phy_ops_v4 = {
>  };
>
>  static const struct qcom_edp_phy_cfg sc7280_dp_phy_cfg = {
> +       .aux_cfg = edp_phy_aux_cfg_v4,
>         .ver_ops = &qcom_edp_phy_ops_v4,
>  };
>
>  static const struct qcom_edp_phy_cfg sc8280xp_dp_phy_cfg = {
> +       .aux_cfg = edp_phy_aux_cfg_v4,
>         .swing_pre_emph_cfg = &dp_phy_swing_pre_emph_cfg,
>         .ver_ops = &qcom_edp_phy_ops_v4,
>  };
>
>  static const struct qcom_edp_phy_cfg sc8280xp_edp_phy_cfg = {
>         .is_edp = true,
> +       .aux_cfg = edp_phy_aux_cfg_v4,
>         .swing_pre_emph_cfg = &edp_phy_swing_pre_emph_cfg,
>         .ver_ops = &qcom_edp_phy_ops_v4,
>  };
> @@ -707,6 +712,7 @@ static const struct phy_ver_ops qcom_edp_phy_ops_v6 = {
>  };
>
>  static struct qcom_edp_phy_cfg x1e80100_phy_cfg = {
> +       .aux_cfg = edp_phy_aux_cfg_v4,

Is this correct? Judging by ver_ops, X Elite uses v6 of the PHY, so
maybe it should also use v5 AUX tables?

>         .swing_pre_emph_cfg = &dp_phy_swing_pre_emph_cfg,
>         .ver_ops = &qcom_edp_phy_ops_v6,
>  };
> --
> 2.17.1
>


--
With best wishes
Dmitry
Re: [PATCH 2/5] phy: qcom: edp: Introduce aux_cfg array for version specific aux settings
Posted by Soutrik Mukhopadhyay 2 months, 2 weeks ago 
On 9/11/2024 4:04 PM, Dmitry Baryshkov wrote:
> On Wed, 11 Sept 2024 at 13:08, Soutrik Mukhopadhyay
> <quic_mukhopad@quicinc.com> wrote:
>> In order to support different HW versions, introduce aux_cfg array
>> to move v4 specific aux configuration settings.
>>
>> Signed-off-by: Soutrik Mukhopadhyay <quic_mukhopad@quicinc.com>
>> ---
>>   drivers/phy/qualcomm/phy-qcom-edp.c | 34 +++++++++++++++++------------
>>   1 file changed, 20 insertions(+), 14 deletions(-)
>>
>> diff --git a/drivers/phy/qualcomm/phy-qcom-edp.c b/drivers/phy/qualcomm/phy-qcom-edp.c
>> index da2b32fb5b45..0f860a807d1b 100644
>> --- a/drivers/phy/qualcomm/phy-qcom-edp.c
>> +++ b/drivers/phy/qualcomm/phy-qcom-edp.c
>> @@ -90,6 +90,7 @@ struct phy_ver_ops {
>>
>>   struct qcom_edp_phy_cfg {
>>          bool is_edp;
>> +       u8 *aux_cfg;
>>          const struct qcom_edp_swing_pre_emph_cfg *swing_pre_emph_cfg;
>>          const struct phy_ver_ops *ver_ops;
>>   };
>> @@ -186,11 +187,14 @@ static const struct qcom_edp_swing_pre_emph_cfg edp_phy_swing_pre_emph_cfg = {
>>          .pre_emphasis_hbr3_hbr2 = &edp_pre_emp_hbr2_hbr3,
>>   };
>>
>> +static u8 edp_phy_aux_cfg_v4[10] = {
> static const u8, please.


Sure, we will change this to "static const u8" in next version patch.


>
>
>> +       0x00, 0x13, 0x24, 0x00, 0x0a, 0x26, 0x0a, 0x03, 0x37, 0x03
>> +};
>> +
>>   static int qcom_edp_phy_init(struct phy *phy)
>>   {
>>          struct qcom_edp *edp = phy_get_drvdata(phy);
>>          int ret;
>> -       u8 cfg8;
>>
>>          ret = regulator_bulk_enable(ARRAY_SIZE(edp->supplies), edp->supplies);
>>          if (ret)
>> @@ -222,22 +226,20 @@ static int qcom_edp_phy_init(struct phy *phy)
>>           * even needed.
>>           */
>>          if (edp->cfg->swing_pre_emph_cfg && !edp->is_edp)
>> -               cfg8 = 0xb7;
>> -       else
>> -               cfg8 = 0x37;
>> +               edp->cfg->aux_cfg[8] = 0xb7;
>>
>>          writel(0xfc, edp->edp + DP_PHY_MODE);
>>
>> -       writel(0x00, edp->edp + DP_PHY_AUX_CFG0);
>> -       writel(0x13, edp->edp + DP_PHY_AUX_CFG1);
>> -       writel(0x24, edp->edp + DP_PHY_AUX_CFG2);
>> -       writel(0x00, edp->edp + DP_PHY_AUX_CFG3);
>> -       writel(0x0a, edp->edp + DP_PHY_AUX_CFG4);
>> -       writel(0x26, edp->edp + DP_PHY_AUX_CFG5);
>> -       writel(0x0a, edp->edp + DP_PHY_AUX_CFG6);
>> -       writel(0x03, edp->edp + DP_PHY_AUX_CFG7);
>> -       writel(cfg8, edp->edp + DP_PHY_AUX_CFG8);
>> -       writel(0x03, edp->edp + DP_PHY_AUX_CFG9);
>> +       writel(edp->cfg->aux_cfg[0], edp->edp + DP_PHY_AUX_CFG0);
>> +       writel(edp->cfg->aux_cfg[1], edp->edp + DP_PHY_AUX_CFG1);
>> +       writel(edp->cfg->aux_cfg[2], edp->edp + DP_PHY_AUX_CFG2);
>> +       writel(edp->cfg->aux_cfg[3], edp->edp + DP_PHY_AUX_CFG3);
>> +       writel(edp->cfg->aux_cfg[4], edp->edp + DP_PHY_AUX_CFG4);
>> +       writel(edp->cfg->aux_cfg[5], edp->edp + DP_PHY_AUX_CFG5);
>> +       writel(edp->cfg->aux_cfg[6], edp->edp + DP_PHY_AUX_CFG6);
>> +       writel(edp->cfg->aux_cfg[7], edp->edp + DP_PHY_AUX_CFG7);
>> +       writel(edp->cfg->aux_cfg[8], edp->edp + DP_PHY_AUX_CFG8);
>> +       writel(edp->cfg->aux_cfg[9], edp->edp + DP_PHY_AUX_CFG9);
>>
>>          writel(PHY_AUX_STOP_ERR_MASK | PHY_AUX_DEC_ERR_MASK |
>>                 PHY_AUX_SYNC_ERR_MASK | PHY_AUX_ALIGN_ERR_MASK |
>> @@ -519,16 +521,19 @@ static const struct phy_ver_ops qcom_edp_phy_ops_v4 = {
>>   };
>>
>>   static const struct qcom_edp_phy_cfg sc7280_dp_phy_cfg = {
>> +       .aux_cfg = edp_phy_aux_cfg_v4,
>>          .ver_ops = &qcom_edp_phy_ops_v4,
>>   };
>>
>>   static const struct qcom_edp_phy_cfg sc8280xp_dp_phy_cfg = {
>> +       .aux_cfg = edp_phy_aux_cfg_v4,
>>          .swing_pre_emph_cfg = &dp_phy_swing_pre_emph_cfg,
>>          .ver_ops = &qcom_edp_phy_ops_v4,
>>   };
>>
>>   static const struct qcom_edp_phy_cfg sc8280xp_edp_phy_cfg = {
>>          .is_edp = true,
>> +       .aux_cfg = edp_phy_aux_cfg_v4,
>>          .swing_pre_emph_cfg = &edp_phy_swing_pre_emph_cfg,
>>          .ver_ops = &qcom_edp_phy_ops_v4,
>>   };
>> @@ -707,6 +712,7 @@ static const struct phy_ver_ops qcom_edp_phy_ops_v6 = {
>>   };
>>
>>   static struct qcom_edp_phy_cfg x1e80100_phy_cfg = {
>> +       .aux_cfg = edp_phy_aux_cfg_v4,
> Is this correct? Judging by ver_ops, X Elite uses v6 of the PHY, so
> maybe it should also use v5 AUX tables?


As per the current implementation, v6 uses v4 aux configuration, so we 
updated it to v4.


>
>>          .swing_pre_emph_cfg = &dp_phy_swing_pre_emph_cfg,
>>          .ver_ops = &qcom_edp_phy_ops_v6,
>>   };
>> --
>> 2.17.1
>>
>
> --
> With best wishes
> Dmitry

Patchew 2.1-devel-b67e4c2

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