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[PATCH 08/13] media: qcom: camss: csiphy-3ph: Add Gen2 v1.2 two-phase MIPI CSI-2 DPHY init

Depeng Shao posted 13 patches 1 year, 7 months ago
There is a newer version of this series
[PATCH 08/13] media: qcom: camss: csiphy-3ph: Add Gen2 v1.2 two-phase MIPI CSI-2 DPHY init
Posted by Depeng Shao 1 year, 7 months ago 
Add a PHY configuration sequence for the SM8550 which uses a Qualcomm
Gen 2 version 1.2 CSI-2 PHY.

The PHY can be configured as two phase or three phase in C-PHY or D-PHY
mode. This configuration supports two-phase D-PHY mode.

Signed-off-by: Depeng Shao <quic_depengs@quicinc.com>
---
 .../qcom/camss/camss-csiphy-3ph-1-0.c         | 105 ++++++++++++++++++
 1 file changed, 105 insertions(+)

diff --git a/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c b/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c
index 1219a25ec55b..b6d5a27b94a6 100644
--- a/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c
+++ b/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c
@@ -324,6 +324,111 @@ csiphy_lane_regs lane_regs_sm8250[] = {
 	{0x0884, 0x01, 0x00, CSIPHY_DEFAULT_PARAMS},
 };
 
+/* GEN2 1.2 2PH */
+static const struct
+csiphy_lane_regs lane_regs_sm8550[] = {
+	{0x0E90, 0x0f, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0E98, 0x08, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0E94, 0x07, 0x01, CSIPHY_DEFAULT_PARAMS},
+	{0x00A0, 0x00, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0090, 0x0f, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0098, 0x08, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0094, 0x07, 0x01, CSIPHY_DEFAULT_PARAMS},
+	{0x0494, 0x00, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x04A0, 0x00, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0490, 0x0f, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0498, 0x08, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0494, 0x07, 0x01, CSIPHY_DEFAULT_PARAMS},
+	{0x0894, 0x00, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x08A0, 0x00, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0890, 0x0f, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0898, 0x08, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0894, 0x07, 0x01, CSIPHY_DEFAULT_PARAMS},
+	{0x0C94, 0x00, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0CA0, 0x00, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0C90, 0x0f, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0C98, 0x08, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0C94, 0x07, 0x01, CSIPHY_DEFAULT_PARAMS},
+	{0x0E30, 0x00, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0E28, 0x04, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0E00, 0x80, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0E0C, 0xFF, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0E38, 0x1F, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0E2C, 0x01, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0E34, 0x0F, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0E1C, 0x0A, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0E14, 0x60, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0E3C, 0xB8, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0E04, 0x0C, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0E20, 0x00, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0E08, 0x10, 0x00, CSIPHY_SETTLE_CNT_LOWER_BYTE},
+	{0x0E10, 0x52, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0030, 0x00, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0000, 0x8E, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0038, 0xFE, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x002C, 0x01, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0034, 0x0F, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x001C, 0x0A, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0014, 0x60, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x003C, 0xB8, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0004, 0x0C, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0020, 0x00, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0008, 0x10, 0x00, CSIPHY_SETTLE_CNT_LOWER_BYTE},
+	{0x0010, 0x52, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0430, 0x00, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0400, 0x8E, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0438, 0xFE, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x042C, 0x01, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0434, 0x0F, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x041C, 0x0A, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0414, 0x60, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x043C, 0xB8, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0404, 0x0C, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0420, 0x00, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0408, 0x10, 0x00, CSIPHY_SETTLE_CNT_LOWER_BYTE},
+	{0x0410, 0x52, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0830, 0x00, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0800, 0x8E, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0838, 0xFE, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x082C, 0x01, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0834, 0x0F, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x081C, 0x0A, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0814, 0x60, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x083C, 0xB8, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0804, 0x0C, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0820, 0x00, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0808, 0x10, 0x00, CSIPHY_SETTLE_CNT_LOWER_BYTE},
+	{0x0810, 0x52, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0C30, 0x00, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0C00, 0x8E, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0C38, 0xFE, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0C2C, 0x01, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0C34, 0x0F, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0C1C, 0x0A, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0C14, 0x60, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0C3C, 0xB8, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0C04, 0x0C, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0C20, 0x00, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0C08, 0x10, 0x00, CSIPHY_SETTLE_CNT_LOWER_BYTE},
+	{0x0C10, 0x52, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0094, 0xD7, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x005C, 0x04, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0060, 0xBD, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0064, 0x7F, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0494, 0xD7, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x045C, 0x04, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0460, 0xBD, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0464, 0x7F, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0894, 0xD7, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x085C, 0x04, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0860, 0xBD, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0864, 0x7F, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0C94, 0xD7, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0C5C, 0x04, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0C60, 0xBD, 0x00, CSIPHY_DEFAULT_PARAMS},
+	{0x0C64, 0x7F, 0x00, CSIPHY_DEFAULT_PARAMS},
+};
+
 static void csiphy_hw_version_read(struct csiphy_device *csiphy,
 				   struct device *dev)
 {
-- 
2.34.1
Re: [PATCH 08/13] media: qcom: camss: csiphy-3ph: Add Gen2 v1.2 two-phase MIPI CSI-2 DPHY init
Posted by Bryan O'Donoghue 1 year, 7 months ago 
On 09/07/2024 17:06, Depeng Shao wrote:
>   
> +/* GEN2 1.2 2PH */
> +static const struct
> +csiphy_lane_regs lane_regs_sm8550[] = {
> +	{0x0E90, 0x0f, 0x00, CSIPHY_DEFAULT_PARAMS},
> +	{0x0E98, 0x08, 0x00, CSIPHY_DEFAULT_PARAMS},

Definitely not DPHY 1.2 init sequence.

Could you update to something like /* GEN2 2.x - two phase 5 Gbps DPHY 
mode 4 lanes */

Since the PHY can be in DPHY or CPHY mode at different data-rates it 
would be nice to call out the exact mode we are upstreaming here.

---
bod
Re: [PATCH 08/13] media: qcom: camss: csiphy-3ph: Add Gen2 v1.2 two-phase MIPI CSI-2 DPHY init
Posted by Depeng Shao 1 year, 7 months ago 

On 7/10/2024 7:13 PM, Bryan O'Donoghue wrote:
> On 09/07/2024 17:06, Depeng Shao wrote:
>> +/* GEN2 1.2 2PH */
>> +static const struct
>> +csiphy_lane_regs lane_regs_sm8550[] = {
>> +    {0x0E90, 0x0f, 0x00, CSIPHY_DEFAULT_PARAMS},
>> +    {0x0E98, 0x08, 0x00, CSIPHY_DEFAULT_PARAMS},
> 
> Definitely not DPHY 1.2 init sequence.
> 
> Could you update to something like /* GEN2 2.x - two phase 5 Gbps DPHY 
> mode 4 lanes */
> 
> Since the PHY can be in DPHY or CPHY mode at different data-rates it 
> would be nice to call out the exact mode we are upstreaming here.
> 
> ---
> bod


Yes, this isn't 1.2, it should be GEN2 2.1.2, thanks for catching this.

Thanks,
Depeng
Re: [PATCH 08/13] media: qcom: camss: csiphy-3ph: Add Gen2 v1.2 two-phase MIPI CSI-2 DPHY init
Posted by Krzysztof Kozlowski 1 year, 7 months ago 
On 09/07/2024 18:06, Depeng Shao wrote:
> Add a PHY configuration sequence for the SM8550 which uses a Qualcomm
> Gen 2 version 1.2 CSI-2 PHY.
> 
> The PHY can be configured as two phase or three phase in C-PHY or D-PHY
> mode. This configuration supports two-phase D-PHY mode.
> 
> Signed-off-by: Depeng Shao <quic_depengs@quicinc.com>
> ---
>  .../qcom/camss/camss-csiphy-3ph-1-0.c         | 105 ++++++++++++++++++
>  1 file changed, 105 insertions(+)
> 
> diff --git a/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c b/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c
> index 1219a25ec55b..b6d5a27b94a6 100644
> --- a/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c
> +++ b/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c
> @@ -324,6 +324,111 @@ csiphy_lane_regs lane_regs_sm8250[] = {
>  	{0x0884, 0x01, 0x00, CSIPHY_DEFAULT_PARAMS},
>  };
>  
> +/* GEN2 1.2 2PH */
> +static const struct
> +csiphy_lane_regs lane_regs_sm8550[] = {

This should sparkle warnings.

There is no user of it. You must organize your patches in logical junks.
Adding piece of structure without users is not a logical chunk.

Best regards,
Krzysztof
Re: [PATCH 08/13] media: qcom: camss: csiphy-3ph: Add Gen2 v1.2 two-phase MIPI CSI-2 DPHY init
Posted by Depeng Shao 1 year, 7 months ago 

On 7/10/2024 7:09 PM, Krzysztof Kozlowski wrote:
> On 09/07/2024 18:06, Depeng Shao wrote:
>> Add a PHY configuration sequence for the SM8550 which uses a Qualcomm
>> Gen 2 version 1.2 CSI-2 PHY.
>>
>> The PHY can be configured as two phase or three phase in C-PHY or D-PHY
>> mode. This configuration supports two-phase D-PHY mode.
>>
>> Signed-off-by: Depeng Shao <quic_depengs@quicinc.com>
>> ---
>>   .../qcom/camss/camss-csiphy-3ph-1-0.c         | 105 ++++++++++++++++++
>>   1 file changed, 105 insertions(+)
>>
>> diff --git a/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c b/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c
>> index 1219a25ec55b..b6d5a27b94a6 100644
>> --- a/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c
>> +++ b/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c
>> @@ -324,6 +324,111 @@ csiphy_lane_regs lane_regs_sm8250[] = {
>>   	{0x0884, 0x01, 0x00, CSIPHY_DEFAULT_PARAMS},
>>   };
>>   
>> +/* GEN2 1.2 2PH */
>> +static const struct
>> +csiphy_lane_regs lane_regs_sm8550[] = {
> 
> This should sparkle warnings.
> 
> There is no user of it. You must organize your patches in logical junks.
> Adding piece of structure without users is not a logical chunk.
> 
> Best regards,
> Krzysztof
> 

Hi Krzysztof,

Sure, will move this patch to "media: qcom: camss: Add sm8550 support",
It is used in below code.

> +	case CAMSS_8550:
> +		regs->lane_regs = &lane_regs_sm8550[0];
> +		regs->lane_array_size = ARRAY_SIZE(lane_regs_sm8550);
> +		regs->offset = 0x1000;
> +		break;
>  	default:

Thanks,
Depeng

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