linux-kernel - Re: [PATCH V1 1/3] pinctrl: qcom: spmi-gpio: Add support for GPIO LV/MV subtype

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Date:   Mon, 19 Jun 2017 09:00:55 +0800
From:   Fenglin Wu <fenglinw@...eaurora.org>
To:     Rob Herring <robh@...nel.org>
Cc:     linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Linus Walleij <linus.walleij@...aro.org>,
        Mark Rutland <mark.rutland@....com>,
        Andy Gross <andy.gross@...aro.org>,
        David Brown <david.brown@...aro.org>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        linux-gpio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-soc@...r.kernel.org, collinsd@...eaurora.org,
        aghayal@...eaurora.org, wruan@...eaurora.org, kgunda@...eaurora.org
Subject: Re: [PATCH V1 1/3] pinctrl: qcom: spmi-gpio: Add support for GPIO
 LV/MV subtype

On 6/18/2017 10:04 PM, Rob Herring wrote:
> On Tue, Jun 13, 2017 at 02:16:03PM +0800, fenglinw@...eaurora.org wrote:
>> From: Fenglin Wu <fenglinw@...eaurora.org>
>>
>> GPIO LV (low voltage)/MV (medium voltage) subtypes have different
>> features and register mappings than 4CH/8CH subtypes. Add support
>> for LV and MV subtypes.
>>
>> Signed-off-by: Fenglin Wu <fenglinw@...eaurora.org>
>> ---
>>   .../devicetree/bindings/pinctrl/qcom,pmic-gpio.txt |  28 ++-
>>   drivers/pinctrl/qcom/pinctrl-spmi-gpio.c           | 269 ++++++++++++++++++---
>>   include/dt-bindings/pinctrl/qcom,pmic-gpio.h       |   9 +
>>   3 files changed, 264 insertions(+), 42 deletions(-)
> 
> [...]
> 
>> diff --git a/include/dt-bindings/pinctrl/qcom,pmic-gpio.h b/include/dt-bindings/pinctrl/qcom,pmic-gpio.h
>> index d33f17c..85d8809 100644
>> --- a/include/dt-bindings/pinctrl/qcom,pmic-gpio.h
>> +++ b/include/dt-bindings/pinctrl/qcom,pmic-gpio.h
>> @@ -93,15 +93,24 @@
>>   #define PM8994_GPIO_S4			2
>>   #define PM8994_GPIO_L12			3
>>   
>> +/* ATEST MUX selection for analog-pass-through mode */
>> +#define PMIC_GPIO_AOUT_ATEST1		0
>> +#define PMIC_GPIO_AOUT_ATEST2		1
>> +#define PMIC_GPIO_AOUT_ATEST3		2
>> +#define PMIC_GPIO_AOUT_ATEST4		3
>> +
>>   /* To be used with "function" */
>>   #define PMIC_GPIO_FUNC_NORMAL		"normal"
>>   #define PMIC_GPIO_FUNC_PAIRED		"paired"
>>   #define PMIC_GPIO_FUNC_FUNC1		"func1"
>>   #define PMIC_GPIO_FUNC_FUNC2		"func2"
>> +#define PMIC_GPIO_FUNC_FUNC3		"func3"
>> +#define PMIC_GPIO_FUNC_FUNC4		"func4"
>>   #define PMIC_GPIO_FUNC_DTEST1		"dtest1"
>>   #define PMIC_GPIO_FUNC_DTEST2		"dtest2"
>>   #define PMIC_GPIO_FUNC_DTEST3		"dtest3"
>>   #define PMIC_GPIO_FUNC_DTEST4		"dtest4"
>> +#define PMIC_GPIO_FUNC_ANALOG		"analog"
> 
> defines for strings? That's really pointless. I'd prefer you drop using
> them than add more.
> 
Thanks for the suggestion, I will remove these string definitions in 
next patch.
Does other part look good? I would post a new patch if no other comments.

> Rob
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