linux-kernel - Re: [PATCH 1/6] pinctrl: qcom: Add ipq6018 pinctrl driver

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Date:   Mon, 10 Jun 2019 16:30:59 +0530
From:   Sricharan R <sricharan@...eaurora.org>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     robh+dt@...nel.org, Stephen Boyd <sboyd@...nel.org>,
        linus.walleij@...aro.org, agross@...nel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-clk@...r.kernel.org, linux-gpio@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, linux-soc@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 1/6] pinctrl: qcom: Add ipq6018 pinctrl driver

Hi Bjorn,

On 6/8/2019 8:56 AM, Bjorn Andersson wrote:
> On Wed 05 Jun 10:15 PDT 2019, Sricharan R wrote:
> 
>> Add initial pinctrl driver to support pin configuration with
>> pinctrl framework for ipq6018.
>>
>> Signed-off-by: Sricharan R <sricharan@...eaurora.org>
>> Signed-off-by: Rajkumar Ayyasamy <arajkuma@...eaurora.org>
>> Signed-off-by: speriaka <speriaka@...eaurora.org>
> 

 Thanks for the review !!

> These should start with the author, then followed by each person that
> handled the patch on its way to the list - so your name should probably
> be last.  If you have more than one author add Co-developed-by, in
> addition to the Signed-off-by.
> 
> And please spell our speriaka's first and last name.
> 
 
  ok, will fix it.

> [..]
>> diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,ipq6018-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/qcom,ipq6018-pinctrl.txt
> [..]
>> +- #gpio-cells:
>> +	Usage: required
>> +	Value type: <u32>
>> +	Definition: must be 2. Specifying the pin number and flags, as defined
>> +		    in <dt-bindings/gpio/gpio.h>
> 
> You're missing the required "gpio-ranges" property.
> 

 ok, will add.

>> +
> [..]
>> +- function:
>> +	Usage: required
>> +	Value type: <string>
>> +	Definition: Specify the alternative function to be configured for the
>> +		    specified pins. Functions are only valid for gpio pins.
>> +		    Valid values are:
>> +	adsp_ext, alsp_int, atest_bbrx0, atest_bbrx1, atest_char, atest_char0,
> 
> Please indent these.
> 

 ok.

> [..]
> 
> The rest should be in a separate patch from the binding.
> 
>> diff --git a/drivers/pinctrl/qcom/Kconfig b/drivers/pinctrl/qcom/Kconfig
> [..]
>> +enum ipq6018_functions {
> [..]
>> +	msm_mux_NA,
> 
> I like when these are sorted, and if you make the last entry msm_mux__
> the msm_pingroup array becomes easier to read.
> 

 ok.

>> +};
> [..]
>> +static const struct msm_function ipq6018_functions[] = {
> [..]
>> +	FUNCTION(gcc_tlmm),
> 
> As above, please sort these.
> 

 ok.

>> +};
>> +
>> +static const struct msm_pingroup ipq6018_groups[] = {
>> +	PINGROUP(0, qpic_pad, wci20, qdss_traceclk_b, NA, burn0, NA, NA, NA,
>> +		 NA),
> 
> Please ignore the 80-char and skip the line breaks.
> 

 ok.

>> +	PINGROUP(1, qpic_pad, mac12, qdss_tracectl_b, NA, burn1, NA, NA, NA,
>> +		 NA),
>> +	PINGROUP(2, qpic_pad, wci20, qdss_tracedata_b, NA, NA, NA, NA, NA, NA),
>> +	PINGROUP(3, qpic_pad, mac01, qdss_tracedata_b, NA, NA, NA, NA, NA, NA),
>> +	PINGROUP(4, qpic_pad, mac01, qdss_tracedata_b, NA, NA, NA, NA, NA, NA),
>> +	PINGROUP(5, qpic_pad4, mac21, qdss_tracedata_b, NA, NA, NA, NA, NA, NA),
> 
> Is there a reason to keep qpic_padN as separate functions from qpic_pad?
> 
  Hmm, the auto-gen scripts needs to be fixed. Will correct it.

> [..]
>> +static struct platform_driver ipq6018_pinctrl_driver = {
>> +	.driver = {
>> +		.name = "ipq6018-pinctrl",
>> +		.owner = THIS_MODULE,
> 
> .owner is populated automagically by platform_driver_register, so please
> omit this.
> 

 ok, missed it. will fix. 

Regards,
 Sricharan

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