linux-kernel - Re: [PATCH 4/6] clk: qcom: Add ipq6018 Global Clock Controller support

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Date:   Mon, 10 Jun 2019 17:17:09 +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 4/6] clk: qcom: Add ipq6018 Global Clock Controller
 support

Hi Bjorn,

On 6/8/2019 9:02 AM, Bjorn Andersson wrote:
> On Wed 05 Jun 10:15 PDT 2019, Sricharan R wrote:
> 
>> This patch adds support for the global clock controller found on
>> the ipq6018 based devices.
>>
>> Signed-off-by: Sricharan R <sricharan@...eaurora.org>
>> Signed-off-by: anusha <anusharao@...eaurora.org>
>> Signed-off-by: Abhishek Sahu <absahu@...eaurora.org>
> 
> Please fix your s-o-b chain, as described in my reply to 1/8..
> 

 ok.

>> ---
>>  drivers/clk/qcom/Kconfig       |    9 +
>>  drivers/clk/qcom/Makefile      |    1 +
>>  drivers/clk/qcom/gcc-ipq6018.c | 5267 ++++++++++++++++++++++++++++++++++++++++
>>  3 files changed, 5277 insertions(+)
>>  create mode 100644 drivers/clk/qcom/gcc-ipq6018.c
>>
>> diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig
>> index e1ff83c..e5fb091 100644
>> --- a/drivers/clk/qcom/Kconfig
>> +++ b/drivers/clk/qcom/Kconfig
>> @@ -120,6 +120,15 @@ config IPQ_GCC_8074
>>  	  i2c, USB, SD/eMMC, etc. Select this for the root clock
>>  	  of ipq8074.
>>  
>> +config IPQ_GCC_6018
> 
> Please maintain sort order.
> 

 ok.

>> +	tristate "IPQ6018 Global Clock Controller"
>> +	depends on COMMON_CLK_QCOM
>> +	help
>> +	  Support for global clock controller on ipq6018 devices.
>> +	  Say Y if you want to use peripheral devices such as UART, SPI,
>> +	  i2c, USB, SD/eMMC, etc. Select this for the root clock
>> +	  of ipq6018.
>> +
>>  config MSM_GCC_8660
>>  	tristate "MSM8660 Global Clock Controller"
>>  	help
>> diff --git a/drivers/clk/qcom/Makefile b/drivers/clk/qcom/Makefile
>> index f0768fb..025137d 100644
>> --- a/drivers/clk/qcom/Makefile
>> +++ b/drivers/clk/qcom/Makefile
>> @@ -22,6 +22,7 @@ obj-$(CONFIG_APQ_MMCC_8084) += mmcc-apq8084.o
>>  obj-$(CONFIG_IPQ_GCC_4019) += gcc-ipq4019.o
>>  obj-$(CONFIG_IPQ_GCC_806X) += gcc-ipq806x.o
>>  obj-$(CONFIG_IPQ_GCC_8074) += gcc-ipq8074.o
>> +obj-$(CONFIG_IPQ_GCC_6018) += gcc-ipq6018.o
> 
> Ditto.
> 

 ok.

>>  obj-$(CONFIG_IPQ_LCC_806X) += lcc-ipq806x.o
>>  obj-$(CONFIG_MDM_GCC_9615) += gcc-mdm9615.o
>>  obj-$(CONFIG_MDM_LCC_9615) += lcc-mdm9615.o
>> diff --git a/drivers/clk/qcom/gcc-ipq6018.c b/drivers/clk/qcom/gcc-ipq6018.c
> [..]
>> +static int gcc_ipq6018_probe(struct platform_device *pdev)
>> +{
>> +	return qcom_cc_probe(pdev, &gcc_ipq6018_desc);
>> +}
>> +
>> +static int gcc_ipq6018_remove(struct platform_device *pdev)
>> +{
>> +	return 0;
> 
> Just omit .remove from the gcc_ipq6018_driver instead of providing a
> dummy function.
> 

 ok.

>> +}
>> +
>> +static struct platform_driver gcc_ipq6018_driver = {
>> +	.probe = gcc_ipq6018_probe,
>> +	.remove = gcc_ipq6018_remove,
>> +	.driver = {
>> +		.name   = "qcom,gcc-ipq6018",
>> +		.owner  = THIS_MODULE,
> 
> Don't specify .owner in platform drivers.
> 

 ok.

> [..]
>> +MODULE_DESCRIPTION("Qualcomm Technologies, Inc. GCC IPQ6018 Driver");
>> +MODULE_LICENSE("GPL v2");
>> +MODULE_ALIAS("platform:gcc-ipq6018");
> 
> This modalias won't be used.
>

 ok. But it looks to be there in other clk drivers as well.
 
Regards,
 Sricharan

-- 
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