linux-kernel - Re: [PATCH 43/61] pwm: simplify getting .drvdata

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Date:   Fri, 20 Apr 2018 10:17:47 +0200
From:   Nicolas Ferre <nicolas.ferre@...rochip.com>
To:     Wolfram Sang <wsa+renesas@...g-engineering.com>,
        <linux-kernel@...r.kernel.org>
CC:     <linux-renesas-soc@...r.kernel.org>,
        <kernel-janitors@...r.kernel.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        <linux-pwm@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 43/61] pwm: simplify getting .drvdata

On 19/04/2018 at 16:06, Wolfram Sang wrote:
> We should get drvdata from struct device directly. Going via
> platform_device is an unneeded step back and forth.
> 
> Signed-off-by: Wolfram Sang <wsa+renesas@...g-engineering.com>

Acked-by: Nicolas Ferre <nicolas.ferre@...rochip.com>

> ---
> 
> Build tested only. buildbot is happy. Please apply individually.
> 
>   drivers/pwm/pwm-atmel-tcb.c | 6 ++----
>   drivers/pwm/pwm-rcar.c      | 3 +--
>   2 files changed, 3 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/pwm/pwm-atmel-tcb.c b/drivers/pwm/pwm-atmel-tcb.c
> index 4fb1be246c44..0d0f8376bc35 100644
> --- a/drivers/pwm/pwm-atmel-tcb.c
> +++ b/drivers/pwm/pwm-atmel-tcb.c
> @@ -460,8 +460,7 @@ MODULE_DEVICE_TABLE(of, atmel_tcb_pwm_dt_ids);
>   #ifdef CONFIG_PM_SLEEP
>   static int atmel_tcb_pwm_suspend(struct device *dev)
>   {
> -	struct platform_device *pdev = to_platform_device(dev);
> -	struct atmel_tcb_pwm_chip *tcbpwm = platform_get_drvdata(pdev);
> +	struct atmel_tcb_pwm_chip *tcbpwm = dev_get_drvdata(dev);
>   	void __iomem *base = tcbpwm->tc->regs;
>   	int i;
>   
> @@ -478,8 +477,7 @@ static int atmel_tcb_pwm_suspend(struct device *dev)
>   
>   static int atmel_tcb_pwm_resume(struct device *dev)
>   {
> -	struct platform_device *pdev = to_platform_device(dev);
> -	struct atmel_tcb_pwm_chip *tcbpwm = platform_get_drvdata(pdev);
> +	struct atmel_tcb_pwm_chip *tcbpwm = dev_get_drvdata(dev);
>   	void __iomem *base = tcbpwm->tc->regs;
>   	int i;
>   
> diff --git a/drivers/pwm/pwm-rcar.c b/drivers/pwm/pwm-rcar.c
> index 91d11f2e2fef..748f614d5375 100644
> --- a/drivers/pwm/pwm-rcar.c
> +++ b/drivers/pwm/pwm-rcar.c
> @@ -261,8 +261,7 @@ MODULE_DEVICE_TABLE(of, rcar_pwm_of_table);
>   #ifdef CONFIG_PM_SLEEP
>   static struct pwm_device *rcar_pwm_dev_to_pwm_dev(struct device *dev)
>   {
> -	struct platform_device *pdev = to_platform_device(dev);
> -	struct rcar_pwm_chip *rcar_pwm = platform_get_drvdata(pdev);
> +	struct rcar_pwm_chip *rcar_pwm = dev_get_drvdata(dev);
>   	struct pwm_chip *chip = &rcar_pwm->chip;
>   
>   	return &chip->pwms[0];
> 


-- 
Nicolas Ferre