linux-kernel - Re: [PATCH V2 RESEND 1/6] dt-bindings: clock: qcom: Add SM8650 video clock controller

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Date: Mon, 25 Mar 2024 11:37:51 +0530
From: Jagadeesh Kona <quic_jkona@...cinc.com>
To: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
CC: Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio
	<konrad.dybcio@...aro.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, Rob Herring <robh+dt@...nel.org>,
        "Krzysztof
 Kozlowski" <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley
	<conor+dt@...nel.org>,
        Vladimir Zapolskiy <vladimir.zapolskiy@...aro.org>,
        <linux-arm-msm@...r.kernel.org>, <linux-clk@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Taniya Das
	<quic_tdas@...cinc.com>,
        Satya Priya Kakitapalli <quic_skakitap@...cinc.com>,
        Ajit Pandey <quic_ajipan@...cinc.com>,
        Imran Shaik
	<quic_imrashai@...cinc.com>,
        Krzysztof Kozlowski
	<krzysztof.kozlowski@...aro.org>
Subject: Re: [PATCH V2 RESEND 1/6] dt-bindings: clock: qcom: Add SM8650 video
 clock controller



On 3/21/2024 6:42 PM, Dmitry Baryshkov wrote:
> On Thu, 21 Mar 2024 at 11:26, Jagadeesh Kona <quic_jkona@...cinc.com> wrote:
>>
>> Extend device tree bindings of SM8450 videocc to add support
>> for SM8650 videocc. While it at, fix the incorrect header
>> include in sm8450 videocc yaml documentation.
>>
>> Signed-off-by: Jagadeesh Kona <quic_jkona@...cinc.com>
>> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
>> ---
>>   .../devicetree/bindings/clock/qcom,sm8450-videocc.yaml    | 4 +++-
>>   include/dt-bindings/clock/qcom,sm8450-videocc.h           | 8 +++++++-
>>   2 files changed, 10 insertions(+), 2 deletions(-)
>>
>> diff --git a/Documentation/devicetree/bindings/clock/qcom,sm8450-videocc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm8450-videocc.yaml
>> index bad8f019a8d3..79f55620eb70 100644
>> --- a/Documentation/devicetree/bindings/clock/qcom,sm8450-videocc.yaml
>> +++ b/Documentation/devicetree/bindings/clock/qcom,sm8450-videocc.yaml
>> @@ -8,18 +8,20 @@ title: Qualcomm Video Clock & Reset Controller on SM8450
>>
>>   maintainers:
>>     - Taniya Das <quic_tdas@...cinc.com>
>> +  - Jagadeesh Kona <quic_jkona@...cinc.com>
>>
>>   description: |
>>     Qualcomm video clock control module provides the clocks, resets and power
>>     domains on SM8450.
>>
>> -  See also:: include/dt-bindings/clock/qcom,videocc-sm8450.h
>> +  See also:: include/dt-bindings/clock/qcom,sm8450-videocc.h
> 
> This almost pleads to go to a separate patch. Fixes generally should
> be separated from the rest of the changes.
> 

Thanks Dmitry for your review.

Sure, will separate this into a separate patch in next series.

>>
>>   properties:
>>     compatible:
>>       enum:
>>         - qcom,sm8450-videocc
>>         - qcom,sm8550-videocc
>> +      - qcom,sm8650-videocc
>>
>>     reg:
>>       maxItems: 1
>> diff --git a/include/dt-bindings/clock/qcom,sm8450-videocc.h b/include/dt-bindings/clock/qcom,sm8450-videocc.h
>> index 9d795adfe4eb..ecfebe52e4bb 100644
>> --- a/include/dt-bindings/clock/qcom,sm8450-videocc.h
>> +++ b/include/dt-bindings/clock/qcom,sm8450-videocc.h
>> @@ -1,6 +1,6 @@
>>   /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
>>   /*
>> - * Copyright (c) 2023, Qualcomm Innovation Center, Inc. All rights reserved.
>> + * Copyright (c) 2023-2024, Qualcomm Innovation Center, Inc. All rights reserved.
>>    */
>>
>>   #ifndef _DT_BINDINGS_CLK_QCOM_VIDEO_CC_SM8450_H
>> @@ -19,6 +19,11 @@
>>   #define VIDEO_CC_MVS1C_DIV2_DIV_CLK_SRC                                9
>>   #define VIDEO_CC_PLL0                                          10
>>   #define VIDEO_CC_PLL1                                          11
>> +#define VIDEO_CC_MVS0_SHIFT_CLK                                        12
>> +#define VIDEO_CC_MVS0C_SHIFT_CLK                               13
>> +#define VIDEO_CC_MVS1_SHIFT_CLK                                        14
>> +#define VIDEO_CC_MVS1C_SHIFT_CLK                               15
>> +#define VIDEO_CC_XO_CLK_SRC                                    16
> 
> Are these values applicable to sm8450?
> 

No, the shift clocks above are part of SM8650 only. To reuse the 
existing SM8550 videocc driver for SM8650 and to register these shift 
clocks for SM8650, I added them here.

Thanks,
Jagadeesh

>>
>>   /* VIDEO_CC power domains */
>>   #define VIDEO_CC_MVS0C_GDSC                                    0
>> @@ -34,5 +39,6 @@
>>   #define CVP_VIDEO_CC_MVS1C_BCR                                 4
>>   #define VIDEO_CC_MVS0C_CLK_ARES                                        5
>>   #define VIDEO_CC_MVS1C_CLK_ARES                                        6
>> +#define VIDEO_CC_XO_CLK_ARES                                   7
>>
>>   #endif
>> --
>> 2.43.0
>>
>>
> 
>