linux-kernel - Re: [PATCH v3 5/8] qcom: pmic_glink: enable altmode for SM8550

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Date:   Tue, 13 Jun 2023 15:43:22 +0200
From:   Neil Armstrong <neil.armstrong@...aro.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Rob Herring <robh@...nel.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-usb@...r.kernel.org
Subject: Re: [PATCH v3 5/8] qcom: pmic_glink: enable altmode for SM8550

On 13/06/2023 13:54, Krzysztof Kozlowski wrote:
> On 13/06/2023 09:55, Neil Armstrong wrote:
>> Altmode is also supported for SM8550, allow it.
>>
>> Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
>> ---
>>   drivers/soc/qcom/pmic_glink.c | 6 +-----
>>   1 file changed, 1 insertion(+), 5 deletions(-)
>>
>> diff --git a/drivers/soc/qcom/pmic_glink.c b/drivers/soc/qcom/pmic_glink.c
>> index c87056769ebd..8af06bdc6f5a 100644
>> --- a/drivers/soc/qcom/pmic_glink.c
>> +++ b/drivers/soc/qcom/pmic_glink.c
>> @@ -342,13 +342,9 @@ static const unsigned long pmic_glink_sm8450_client_mask = BIT(PMIC_GLINK_CLIENT
>>   							   BIT(PMIC_GLINK_CLIENT_ALTMODE) |
>>   							   BIT(PMIC_GLINK_CLIENT_UCSI);
>>   
>> -/* Do not handle altmode for now on those platforms */
>> -static const unsigned long pmic_glink_sm8550_client_mask = BIT(PMIC_GLINK_CLIENT_BATT) |
>> -							   BIT(PMIC_GLINK_CLIENT_UCSI);
>> -
>>   static const struct of_device_id pmic_glink_of_match[] = {
>>   	{ .compatible = "qcom,sm8450-pmic-glink", .data = &pmic_glink_sm8450_client_mask },
> 
> Orientation and maybe all of the USB-related properties do not look like
> sm8450 specific, but PM8350B. That's where CC_OUT pin is. I don't think
> we represented this correctly, but rather copy-pasted downstream solution...

We do not interact directly with PM8350B or PM8550B but with pmic_glink who
does the work work for use, and this is platform specific.

Neil

> 
> Best regards,
> Krzysztof
>