linux-kernel - Re: [PATCH v5 1/6] pwms: pwm-ti*: Get the clock from the PWMSS (parent)

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Date:	Thu, 17 Mar 2016 17:37:18 -0500
From:	"Franklin S Cooper Jr." <fcooper@...com>
To:	<thierry.reding@...il.com>, <robh+dt@...nel.org>,
	<pawel.moll@....com>, <mark.rutland@....com>,
	<ijc+devicetree@...lion.org.uk>, <galak@...eaurora.org>,
	<bcousson@...libre.com>, <tony@...mide.com>,
	<linux@....linux.org.uk>, <paul@...an.com>,
	<linux-pwm@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linux-omap@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, <vigneshr@...com>
Subject: Re: [PATCH v5 1/6] pwms: pwm-ti*: Get the clock from the PWMSS
 (parent)

Gentle ping on this

On 03/07/2016 07:23 PM, Franklin S Cooper Jr wrote:
> The eCAP and ePWM doesn't have their own separate clocks. They simply
> utilize the clock provided directly by the PWMSS. Therefore, they simply
> need to grab a reference to their parent's clock.
>
> Signed-off-by: Franklin S Cooper Jr <fcooper@...com>
> ---
>  drivers/pwm/pwm-tiecap.c   | 2 +-
>  drivers/pwm/pwm-tiehrpwm.c | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/pwm/pwm-tiecap.c b/drivers/pwm/pwm-tiecap.c
> index 616af76..9418159 100644
> --- a/drivers/pwm/pwm-tiecap.c
> +++ b/drivers/pwm/pwm-tiecap.c
> @@ -212,7 +212,7 @@ static int ecap_pwm_probe(struct platform_device *pdev)
>  	if (!pc)
>  		return -ENOMEM;
>  
> -	clk = devm_clk_get(&pdev->dev, "fck");
> +	clk = devm_clk_get(pdev->dev.parent, "fck");
>  	if (IS_ERR(clk)) {
>  		dev_err(&pdev->dev, "failed to get clock\n");
>  		return PTR_ERR(clk);
> diff --git a/drivers/pwm/pwm-tiehrpwm.c b/drivers/pwm/pwm-tiehrpwm.c
> index 6a41e66..09dc1bc 100644
> --- a/drivers/pwm/pwm-tiehrpwm.c
> +++ b/drivers/pwm/pwm-tiehrpwm.c
> @@ -443,7 +443,7 @@ static int ehrpwm_pwm_probe(struct platform_device *pdev)
>  	if (!pc)
>  		return -ENOMEM;
>  
> -	clk = devm_clk_get(&pdev->dev, "fck");
> +	clk = devm_clk_get(pdev->dev.parent, "fck");
>  	if (IS_ERR(clk)) {
>  		dev_err(&pdev->dev, "failed to get clock\n");
>  		return PTR_ERR(clk);