linux-kernel - Re: [PATCH 2/2] pinctrl: qcom: sc7280: Add lpi pinctrl variant data structure for adsp based targets

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Message-ID: <26bfd089-46d6-d08d-efac-71ffc04f674c@quicinc.com>
Date:   Wed, 1 Jun 2022 15:26:44 +0530
From:   Srinivasa Rao Mandadapu <quic_srivasam@...cinc.com>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
CC:     <agross@...nel.org>, <lgirdwood@...il.com>, <broonie@...nel.org>,
        <robh+dt@...nel.org>, <quic_plai@...cinc.com>,
        <bgoswami@...cinc.com>, <perex@...ex.cz>, <tiwai@...e.com>,
        <srinivas.kandagatla@...aro.org>, <quic_rohkumar@...cinc.com>,
        <linux-arm-msm@...r.kernel.org>, <alsa-devel@...a-project.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <swboyd@...omium.org>, <judyhsiao@...omium.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        <linux-gpio@...r.kernel.org>,
        Venkata Prasad Potturu <quic_potturu@...cinc.com>
Subject: Re: [PATCH 2/2] pinctrl: qcom: sc7280: Add lpi pinctrl variant data
 structure for adsp based targets


On 5/16/2022 8:47 PM, Bjorn Andersson wrote:
Thanks for Your time Bjorn!!!
> On Wed 04 May 06:56 PDT 2022, Srinivasa Rao Mandadapu wrote:
>
>> Add compatible string and lpi pinctrl variant data structure for adsp enabled
>> sc7280 platforms.
> This says what the change does, but gives no clue to what this
> compatible represents and why the clock is not optional.
>
> Could you please describe here what scenario this compatible is to be
> used for etc, so that when someone else adds support for the next
> platform they can use the git history to understand which case to
> follow.
>
> Thanks,
> Bjorn
Okay. Will update the commit message.
>
>> Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@...cinc.com>
>> Co-developed-by: Venkata Prasad Potturu <quic_potturu@...cinc.com>
>> Signed-off-by: Venkata Prasad Potturu <quic_potturu@...cinc.com>
>> ---
>>   drivers/pinctrl/qcom/pinctrl-sc7280-lpass-lpi.c | 14 ++++++++++++++
>>   1 file changed, 14 insertions(+)
>>
>> diff --git a/drivers/pinctrl/qcom/pinctrl-sc7280-lpass-lpi.c b/drivers/pinctrl/qcom/pinctrl-sc7280-lpass-lpi.c
>> index 2add9a4..c9e85d9 100644
>> --- a/drivers/pinctrl/qcom/pinctrl-sc7280-lpass-lpi.c
>> +++ b/drivers/pinctrl/qcom/pinctrl-sc7280-lpass-lpi.c
>> @@ -134,6 +134,16 @@ static const struct lpi_function sc7280_functions[] = {
>>   	LPI_FUNCTION(wsa_swr_data),
>>   };
>>   
>> +static const struct lpi_pinctrl_variant_data sc7280_adsp_lpi_data = {
>> +	.pins = sc7280_lpi_pins,
>> +	.npins = ARRAY_SIZE(sc7280_lpi_pins),
>> +	.groups = sc7280_groups,
>> +	.ngroups = ARRAY_SIZE(sc7280_groups),
>> +	.functions = sc7280_functions,
>> +	.nfunctions = ARRAY_SIZE(sc7280_functions),
>> +	.is_clk_optional = false,
>> +};
>> +
>>   static const struct lpi_pinctrl_variant_data sc7280_lpi_data = {
>>   	.pins = sc7280_lpi_pins,
>>   	.npins = ARRAY_SIZE(sc7280_lpi_pins),
>> @@ -149,6 +159,10 @@ static const struct of_device_id lpi_pinctrl_of_match[] = {
>>   	       .compatible = "qcom,sc7280-lpass-lpi-pinctrl",
>>   	       .data = &sc7280_lpi_data,
>>   	},
>> +	{
>> +		.compatible = "qcom,sc7280-lpass-adsp-lpi-pinctrl",
>> +		.data = &sc7280_adsp_lpi_data,
>> +	},
>>   	{ }
>>   };
>>   MODULE_DEVICE_TABLE(of, lpi_pinctrl_of_match);
>> -- 
>> 2.7.4
>>