diff mbox series

[3/4] mailbox: qcom: Add ipq6018 apcs compatible

Message ID 1590583092-24290-4-git-send-email-sivaprak@codeaurora.org (mailing list archive)
State Superseded
Headers show
Series Add ipq6018 apcs mailbox driver | expand

Commit Message

Sivaprakash Murugesan May 27, 2020, 12:38 p.m. UTC
The Qualcomm ipq6018 has apcs block, add compatible for the same.
Also, the apcs provides a clock controller functionality similar
to msm8916 but the clock driver is different.

Create a child platform device based on the apcs compatible for the
clock controller functionality.

Signed-off-by: Sivaprakash Murugesan <sivaprak@codeaurora.org>
---
 drivers/mailbox/qcom-apcs-ipc-mailbox.c | 23 ++++++++++++++---------
 1 file changed, 14 insertions(+), 9 deletions(-)

Comments

kernel test robot May 29, 2020, 2:41 a.m. UTC | #1
Hi Sivaprakash,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on robh/for-next]
[also build test WARNING on linus/master v5.7-rc7 next-20200528]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Sivaprakash-Murugesan/Add-ipq6018-apcs-mailbox-driver/20200527-204025
base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
config: x86_64-randconfig-a004-20200528 (attached as .config)
compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project 2d068e534f1671459e1b135852c1b3c10502e929)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <lkp@intel.com>

All warnings (new ones prefixed by >>, old ones prefixed by <<):

>> drivers/mailbox/qcom-apcs-ipc-mailbox.c:48:34: warning: unused variable 'apcs_clk_match_table' [-Wunused-const-variable]
static const struct of_device_id apcs_clk_match_table[] = {
^
1 warning generated.

vim +/apcs_clk_match_table +48 drivers/mailbox/qcom-apcs-ipc-mailbox.c

    47	
  > 48	static const struct of_device_id apcs_clk_match_table[] = {
    49		{ .compatible = "qcom,ipq6018-apcs-apps-global", .data = "qcom,apss-ipq6018-clk", },
    50		{ .compatible = "qcom,msm8916-apcs-kpss-global", .data = "qcom-apcs-msm8916-clk", },
    51		{ .compatible = "qcom,qcs404-apcs-apps-global",  .data = "qcom-apcs-msm8916-clk", },
    52		{}
    53	};
    54	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
Bjorn Andersson May 29, 2020, 3:11 a.m. UTC | #2
On Wed 27 May 05:38 PDT 2020, Sivaprakash Murugesan wrote:

> The Qualcomm ipq6018 has apcs block, add compatible for the same.
> Also, the apcs provides a clock controller functionality similar
> to msm8916 but the clock driver is different.
> 
> Create a child platform device based on the apcs compatible for the
> clock controller functionality.
> 
> Signed-off-by: Sivaprakash Murugesan <sivaprak@codeaurora.org>
> ---
>  drivers/mailbox/qcom-apcs-ipc-mailbox.c | 23 ++++++++++++++---------
>  1 file changed, 14 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/mailbox/qcom-apcs-ipc-mailbox.c b/drivers/mailbox/qcom-apcs-ipc-mailbox.c
> index eeebafd..db3f9518 100644
> --- a/drivers/mailbox/qcom-apcs-ipc-mailbox.c
> +++ b/drivers/mailbox/qcom-apcs-ipc-mailbox.c
> @@ -45,6 +45,13 @@ static const struct mbox_chan_ops qcom_apcs_ipc_ops = {
>  	.send_data = qcom_apcs_ipc_send_data,
>  };
>  
> +static const struct of_device_id apcs_clk_match_table[] = {
> +	{ .compatible = "qcom,ipq6018-apcs-apps-global", .data = "qcom,apss-ipq6018-clk", },
> +	{ .compatible = "qcom,msm8916-apcs-kpss-global", .data = "qcom-apcs-msm8916-clk", },
> +	{ .compatible = "qcom,qcs404-apcs-apps-global",  .data = "qcom-apcs-msm8916-clk", },
> +	{}
> +};
> +
>  static int qcom_apcs_ipc_probe(struct platform_device *pdev)
>  {
>  	struct qcom_apcs_ipc *apcs;
> @@ -54,11 +61,7 @@ static int qcom_apcs_ipc_probe(struct platform_device *pdev)
>  	void __iomem *base;
>  	unsigned long i;
>  	int ret;
> -	const struct of_device_id apcs_clk_match_table[] = {
> -		{ .compatible = "qcom,msm8916-apcs-kpss-global", },
> -		{ .compatible = "qcom,qcs404-apcs-apps-global", },
> -		{}
> -	};
> +	const struct of_device_id *clk_device;
>  
>  	apcs = devm_kzalloc(&pdev->dev, sizeof(*apcs), GFP_KERNEL);
>  	if (!apcs)
> @@ -93,11 +96,12 @@ static int qcom_apcs_ipc_probe(struct platform_device *pdev)
>  		return ret;
>  	}
>  
> -	if (of_match_device(apcs_clk_match_table, &pdev->dev)) {
> +	clk_device = of_match_device(apcs_clk_match_table, &pdev->dev);

I think you should replace the direct integer in qcom_apcs_ipc_of_match
with a small struct containing offset and the clock device's name -
allowing the latter to be omitted.

That avoids the apcs_clk_match_table being unreferenced when this is
compiled without CONFIG_OF and it removes the need for two of_device_id
arrays.

Regards,
Bjorn

> +	if (clk_device) {
>  		apcs->clk = platform_device_register_data(&pdev->dev,
> -							  "qcom-apcs-msm8916-clk",
> -							  PLATFORM_DEVID_NONE,
> -							  NULL, 0);
> +							clk_device->data,
> +							PLATFORM_DEVID_NONE,
> +							NULL, 0);
>  		if (IS_ERR(apcs->clk))
>  			dev_err(&pdev->dev, "failed to register APCS clk\n");
>  	}
> @@ -126,6 +130,7 @@ static const struct of_device_id qcom_apcs_ipc_of_match[] = {
>  	{ .compatible = "qcom,sc7180-apss-shared", .data = (void *)12 },
>  	{ .compatible = "qcom,sdm845-apss-shared", .data = (void *)12 },
>  	{ .compatible = "qcom,sm8150-apss-shared", .data = (void *)12 },
> +	{ .compatible = "qcom,ipq6018-apcs-apps-global", .data = (void *)8 },
>  	{ .compatible = "qcom,ipq8074-apcs-apps-global", .data = (void *)8 },
>  	{}
>  };
> -- 
> 2.7.4
>
diff mbox series

Patch

diff --git a/drivers/mailbox/qcom-apcs-ipc-mailbox.c b/drivers/mailbox/qcom-apcs-ipc-mailbox.c
index eeebafd..db3f9518 100644
--- a/drivers/mailbox/qcom-apcs-ipc-mailbox.c
+++ b/drivers/mailbox/qcom-apcs-ipc-mailbox.c
@@ -45,6 +45,13 @@  static const struct mbox_chan_ops qcom_apcs_ipc_ops = {
 	.send_data = qcom_apcs_ipc_send_data,
 };
 
+static const struct of_device_id apcs_clk_match_table[] = {
+	{ .compatible = "qcom,ipq6018-apcs-apps-global", .data = "qcom,apss-ipq6018-clk", },
+	{ .compatible = "qcom,msm8916-apcs-kpss-global", .data = "qcom-apcs-msm8916-clk", },
+	{ .compatible = "qcom,qcs404-apcs-apps-global",  .data = "qcom-apcs-msm8916-clk", },
+	{}
+};
+
 static int qcom_apcs_ipc_probe(struct platform_device *pdev)
 {
 	struct qcom_apcs_ipc *apcs;
@@ -54,11 +61,7 @@  static int qcom_apcs_ipc_probe(struct platform_device *pdev)
 	void __iomem *base;
 	unsigned long i;
 	int ret;
-	const struct of_device_id apcs_clk_match_table[] = {
-		{ .compatible = "qcom,msm8916-apcs-kpss-global", },
-		{ .compatible = "qcom,qcs404-apcs-apps-global", },
-		{}
-	};
+	const struct of_device_id *clk_device;
 
 	apcs = devm_kzalloc(&pdev->dev, sizeof(*apcs), GFP_KERNEL);
 	if (!apcs)
@@ -93,11 +96,12 @@  static int qcom_apcs_ipc_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	if (of_match_device(apcs_clk_match_table, &pdev->dev)) {
+	clk_device = of_match_device(apcs_clk_match_table, &pdev->dev);
+	if (clk_device) {
 		apcs->clk = platform_device_register_data(&pdev->dev,
-							  "qcom-apcs-msm8916-clk",
-							  PLATFORM_DEVID_NONE,
-							  NULL, 0);
+							clk_device->data,
+							PLATFORM_DEVID_NONE,
+							NULL, 0);
 		if (IS_ERR(apcs->clk))
 			dev_err(&pdev->dev, "failed to register APCS clk\n");
 	}
@@ -126,6 +130,7 @@  static const struct of_device_id qcom_apcs_ipc_of_match[] = {
 	{ .compatible = "qcom,sc7180-apss-shared", .data = (void *)12 },
 	{ .compatible = "qcom,sdm845-apss-shared", .data = (void *)12 },
 	{ .compatible = "qcom,sm8150-apss-shared", .data = (void *)12 },
+	{ .compatible = "qcom,ipq6018-apcs-apps-global", .data = (void *)8 },
 	{ .compatible = "qcom,ipq8074-apcs-apps-global", .data = (void *)8 },
 	{}
 };