linux-kernel - Re: [PATCH v3] pwm: add pwm driver for HiSilicon BVT SOCs

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Message-ID: <a46ed24c-0062-24a8-21ae-86fd34365df0@hisilicon.com>
Date:   Wed, 21 Sep 2016 14:12:54 +0800
From:   Jian Yuan <yuanjian12@...ilicon.com>
To:     Rob Herring <robh@...nel.org>
CC:     <thierry.reding@...il.com>, <mark.rutland@....com>,
        <linux-pwm@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <xuejiancheng@...ilicon.com>,
        <kevin.lixu@...ilicon.com>, <jalen.hsu@...ilicon.com>
Subject: Re: [PATCH v3] pwm: add pwm driver for HiSilicon BVT SOCs



On 2016/9/20 22:43, Rob Herring wrote:
> On Mon, Sep 12, 2016 at 09:51:46AM +0800, Jian Yuan wrote:
>> From: yuanjian <yuanjian12@...ilicon.com>
>>
>> Add PWM driver for the PWM controller found on HiSilicon BVT SOCs, like Hi3519V100, Hi3516CV300, etc.
>> The PWM controller is primarily in charge of controlling P-Iris lens.
>>
>> Reviewed-by: Jiancheng Xue <xuejiancheng@...ilicon.com>
>> Signed-off-by: Jian Yuan <yuanjian12@...ilicon.com>
>> ---
>> Change Log:
>> v3:
>> Add PWM compatible string for Hi3519V100.
>> Implement .apply() function which support atomic, instead of .enable()/.disable()/.config().
>> v2:
>> The number of PWMs is change to be probeable based on the compatible string.
>>
>>  .../devicetree/bindings/pwm/pwm-hibvt.txt          |  20 ++
>>  drivers/pwm/Kconfig                                |   9 +
>>  drivers/pwm/Makefile                               |   1 +
>>  drivers/pwm/pwm-hibvt.c                            | 270 +++++++++++++++++++++
>>  4 files changed, 300 insertions(+)
>>  create mode 100644 Documentation/devicetree/bindings/pwm/pwm-hibvt.txt
>>  create mode 100644 drivers/pwm/pwm-hibvt.c
>>
>> diff --git a/Documentation/devicetree/bindings/pwm/pwm-hibvt.txt b/Documentation/devicetree/bindings/pwm/pwm-hibvt.txt
>> new file mode 100644
>> index 0000000..2ecf4e4
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/pwm/pwm-hibvt.txt
>> @@ -0,0 +1,20 @@
>> +Hisilicon PWM controller
>> +
>> +Required properties:
>> +-compatible: should contain one SoC specific compatible string and one generic compatible
>> +string "hisilicon, hibvt-pwm". The SoC specific strings supported including:
>> +	"hisilicon,hi3516cv300-pwm"
>> +	"hisilicon,hi3519v100-pwm"
>> +- reg: physical base address and length of the controller's registers.
>> +- clocks: phandle and clock specifier of the PWM reference clock.
>> +- resets: phandle and reset specifier for the PWM controller reset.
> 
> You are missing #pwm-cells.
> 
Ok, thanks.