linux-kernel - Re: [PATCH v2 2/5] media: qcom: camss: Add SM8750 compatible camss driver

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Message-ID: <b3cf9b7c-b692-4a17-8e22-6df356db8834@oss.qualcomm.com>
Date: Wed, 14 Jan 2026 09:35:12 +0800
From: Hangxiang Ma <hangxiang.ma@....qualcomm.com>
To: Vijay Kumar Tumati <vijay.tumati@....qualcomm.com>,
        Robert Foss <rfoss@...nel.org>, Todor Tomov <todor.too@...il.com>,
        Vladimir Zapolskiy <vladimir.zapolskiy@...aro.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
 <conor+dt@...nel.org>,
        Bryan O'Donoghue <bryan.odonoghue@...aro.org>
Cc: linux-arm-msm@...r.kernel.org, linux-media@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        jeyaprakash.soundrapandian@....qualcomm.com
Subject: Re: [PATCH v2 2/5] media: qcom: camss: Add SM8750 compatible camss
 driver

On 1/14/2026 4:53 AM, Vijay Kumar Tumati wrote:
> 
> On 1/13/2026 2:28 AM, Hangxiang Ma wrote:
>> Add support for SM8750 in the camss driver. Add high level resource
>> information along with the bus bandwidth votes. Module level detailed
>> resource information will be enumerated in the following patches of the
>> series.
>>
>> Signed-off-by: Hangxiang Ma <hangxiang.ma@....qualcomm.com>
> Hi Hangxiang, I believe some reviewed-by tags are missing for these 
> patches. Can you please double check?
>> ---
>>   drivers/media/platform/qcom/camss/camss.c | 22 ++++++++++++++++++++++
>>   drivers/media/platform/qcom/camss/camss.h |  1 +
>>   2 files changed, 23 insertions(+)
>>
>> diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/ 
>> media/platform/qcom/camss/camss.c
>> index 36ff645d9c1e..56f20daeca3e 100644
>> --- a/drivers/media/platform/qcom/camss/camss.c
>> +++ b/drivers/media/platform/qcom/camss/camss.c
>> @@ -4066,6 +4066,20 @@ static const struct resources_icc 
>> icc_res_sa8775p[] = {
>>       },
>>   };
>> +static const struct resources_icc icc_res_sm8750[] = {
>> +    {
>> +        .name = "cam_ahb",
>> +        .icc_bw_tbl.avg = 150000,
>> +        .icc_bw_tbl.peak = 300000,
>> +    },
>> +    /* Based on 4096 x 3072 30 FPS 2496 Mbps mode */
>> +    {
>> +        .name = "cam_hf_mnoc",
>> +        .icc_bw_tbl.avg = 471860,
>> +        .icc_bw_tbl.peak = 925857,
>> +    },
>> +};
>> +
>>   static const struct camss_subdev_resources csiphy_res_x1e80100[] = {
>>       /* CSIPHY0 */
>>       {
>> @@ -5487,6 +5501,13 @@ static const struct camss_resources 
>> sm8650_resources = {
>>       .vfe_num = ARRAY_SIZE(vfe_res_sm8650),
>>   };
>> +static const struct camss_resources sm8750_resources = {
>> +    .version = CAMSS_8750,
>> +    .pd_name = "top",
>> +    .icc_res = icc_res_sm8750,
>> +    .icc_path_num = ARRAY_SIZE(icc_res_sm8750),
>> +};
>> +
>>   static const struct camss_resources x1e80100_resources = {
>>       .version = CAMSS_X1E80100,
>>       .pd_name = "top",
>> @@ -5518,6 +5539,7 @@ static const struct of_device_id 
>> camss_dt_match[] = {
>>       { .compatible = "qcom,sm8250-camss", .data = &sm8250_resources },
>>       { .compatible = "qcom,sm8550-camss", .data = &sm8550_resources },
>>       { .compatible = "qcom,sm8650-camss", .data = &sm8650_resources },
>> +    { .compatible = "qcom,sm8750-camss", .data = &sm8750_resources },
>>       { .compatible = "qcom,x1e80100-camss", .data = 
>> &x1e80100_resources },
>>       { }
>>   };
>> diff --git a/drivers/media/platform/qcom/camss/camss.h b/drivers/ 
>> media/platform/qcom/camss/camss.h
>> index 616ed7bbb732..2a53524dec93 100644
>> --- a/drivers/media/platform/qcom/camss/camss.h
>> +++ b/drivers/media/platform/qcom/camss/camss.h
>> @@ -91,6 +91,7 @@ enum camss_version {
>>       CAMSS_845,
>>       CAMSS_8550,
>>       CAMSS_8650,
>> +    CAMSS_8750,
>>       CAMSS_8775P,
>>       CAMSS_KAANAPALI,
>>       CAMSS_X1E80100,
> 
> Thanks,
> 
> Vijay.
> 
Hi Vijay, the B4 tool didn’t retrieve any ‘Review-by’ tags before I 
submitted this revision. Since I wasn’t sure if they were valid, I 
didn’t handle that by adding tags manually.

Hi Bryan, is it possible for me to add the 'Review-by' tags manually if 
B4 doesn't pick them up automatically? Your feedback would be helpful so 
I can manage this situation better in the future.

Best Regards,
Hangxiang