2023-11-15 16:49:06

by Konrad Dybcio

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Subject: Re: [PATCH 2/4] clk: qcom: videocc-sm8150: Update the videocc resets



On 11/10/23 12:49, Bryan O'Donoghue wrote:
> On 10/11/2023 06:50, Satya Priya Kakitapalli wrote:
>> Add all the available resets for the video clock controller
>> on sm8150.
>>
>> Fixes: 5658e8cf1a8a ("clk: qcom: add video clock controller driver for SM8150")
>> Signed-off-by: Satya Priya Kakitapalli <[email protected]>
>> ---
>>   drivers/clk/qcom/videocc-sm8150.c | 4 ++++
>>   1 file changed, 4 insertions(+)
>>
>> diff --git a/drivers/clk/qcom/videocc-sm8150.c b/drivers/clk/qcom/videocc-sm8150.c
>> index 1afdbe4a249d..6a5f89f53da8 100644
>> --- a/drivers/clk/qcom/videocc-sm8150.c
>> +++ b/drivers/clk/qcom/videocc-sm8150.c
>> @@ -214,6 +214,10 @@ static const struct regmap_config video_cc_sm8150_regmap_config = {
>>   static const struct qcom_reset_map video_cc_sm8150_resets[] = {
>>       [VIDEO_CC_MVSC_CORE_CLK_BCR] = { 0x850, 2 },
>> +    [VIDEO_CC_INTERFACE_BCR] = { 0x8f0 },
>> +    [VIDEO_CC_MVS0_BCR] = { 0x870 },
>> +    [VIDEO_CC_MVS1_BCR] = { 0x8b0 },
>> +    [VIDEO_CC_MVSC_BCR] = { 0x810 },
>
> Are you sure this shouldn't be
>
> +    [VIDEO_CC_INTERFACE_BCR] = { 0x9ac },
> +    [VIDEO_CC_MVS0_BCR] = { 0x870 },
> +    [VIDEO_CC_MVS1_BCR] = { 0x8b0 },
> +    [VIDEO_CC_MVSC_BCR] = { 0x810 },
FWIW this seems to be a copypaste from

https://git.codelinaro.org/clo/la/kernel/msm-5.4/-/blame/92b31370d31d22e910120f6a875bf0919b3f1773/drivers/clk/qcom/videocc-sm8150.c

so if it's an issue, it should probably be fixed downstream too

Konrad


2023-11-15 17:09:33

by Bryan O'Donoghue

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Subject: Re: [PATCH 2/4] clk: qcom: videocc-sm8150: Update the videocc resets

On 15/11/2023 16:48, Konrad Dybcio wrote:
>> +    [VIDEO_CC_INTERFACE_BCR] = { 0x9ac },
>> +    [VIDEO_CC_MVS0_BCR] = { 0x870 },
>> +    [VIDEO_CC_MVS1_BCR] = { 0x8b0 },
>> +    [VIDEO_CC_MVSC_BCR] = { 0x810 },
> FWIW this seems to be a copypaste from
>
> https://git.codelinaro.org/clo/la/kernel/msm-5.4/-/blame/92b31370d31d22e910120f6a875bf0919b3f1773/drivers/clk/qcom/videocc-sm8150.c
>
> so if it's an issue, it should probably be fixed downstream too

More of a question than a gotcha - 0x9ac is valid for sm8250 so curious
to me that its a different address on sm8150.

---
bod

2023-11-16 09:30:20

by Satya Priya Kakitapalli

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Subject: Re: [PATCH 2/4] clk: qcom: videocc-sm8150: Update the videocc resets


On 11/15/2023 10:39 PM, Bryan O'Donoghue wrote:
> On 15/11/2023 16:48, Konrad Dybcio wrote:
>>> +    [VIDEO_CC_INTERFACE_BCR] = { 0x9ac },
>>> +    [VIDEO_CC_MVS0_BCR] = { 0x870 },
>>> +    [VIDEO_CC_MVS1_BCR] = { 0x8b0 },
>>> +    [VIDEO_CC_MVSC_BCR] = { 0x810 },
>> FWIW this seems to be a copypaste from
>>
>> https://git.codelinaro.org/clo/la/kernel/msm-5.4/-/blame/92b31370d31d22e910120f6a875bf0919b3f1773/drivers/clk/qcom/videocc-sm8150.c
>>
>>
>> so if it's an issue, it should probably be fixed downstream too
>
> More of a question than a gotcha - 0x9ac is valid for sm8250 so
> curious to me that its a different address on sm8150.


I have re-checked the offset values, as per the HW plan for SM8150 below
values are correct:

+    [VIDEO_CC_INTERFACE_BCR] = { 0x8f0 },
+    [VIDEO_CC_MVS0_BCR] = { 0x870 },
+    [VIDEO_CC_MVS1_BCR] = { 0x8b0 },
+    [VIDEO_CC_MVSC_BCR] = { 0x810 },


> ---
> bod