linux-kernel - RE: [PATCH] pwm: imx27: use devm_platform_ioremap

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Date:   Sun, 28 Apr 2019 06:29:26 +0000
From:   Anson Huang <anson.huang@....com>
To:     Mukesh Ojha <mojha@...eaurora.org>,
        "thierry.reding@...il.com" <thierry.reding@...il.com>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "festevam@...il.com" <festevam@...il.com>,
        "linux-pwm@...r.kernel.org" <linux-pwm@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     dl-linux-imx <linux-imx@....com>
Subject: RE: [PATCH] pwm: imx27: use devm_platform_ioremap_resource() to
 simplify code

Ping...

> -----Original Message-----
> From: Mukesh Ojha [mailto:mojha@...eaurora.org]
> Sent: Monday, April 1, 2019 4:01 PM
> To: Anson Huang <anson.huang@....com>; thierry.reding@...il.com;
> shawnguo@...nel.org; s.hauer@...gutronix.de; kernel@...gutronix.de;
> festevam@...il.com; linux-pwm@...r.kernel.org; linux-arm-
> kernel@...ts.infradead.org; linux-kernel@...r.kernel.org
> Cc: dl-linux-imx <linux-imx@....com>
> Subject: Re: [PATCH] pwm: imx27: use devm_platform_ioremap_resource()
> to simplify code
> 
> 
> On 4/1/2019 10:54 AM, Anson Huang wrote:
> > Use the new helper devm_platform_ioremap_resource() which wraps the
> > platform_get_resource() and devm_ioremap_resource() together, to
> > simplify the code.
> >
> > Signed-off-by: Anson Huang <Anson.Huang@....com>
> 
> 
> Reviewed-by: Mukesh Ojha <mojha@...eaurora.org>
> 
> Cheers,
> -Mukesh
> 
> > ---
> >   drivers/pwm/pwm-imx27.c | 4 +---
> >   1 file changed, 1 insertion(+), 3 deletions(-)
> >
> > diff --git a/drivers/pwm/pwm-imx27.c b/drivers/pwm/pwm-imx27.c index
> > 8061306..434a351 100644
> > --- a/drivers/pwm/pwm-imx27.c
> > +++ b/drivers/pwm/pwm-imx27.c
> > @@ -291,7 +291,6 @@ MODULE_DEVICE_TABLE(of, pwm_imx27_dt_ids);
> >   static int pwm_imx27_probe(struct platform_device *pdev)
> >   {
> >   	struct pwm_imx27_chip *imx;
> > -	struct resource *r;
> >
> >   	imx = devm_kzalloc(&pdev->dev, sizeof(*imx), GFP_KERNEL);
> >   	if (imx == NULL)
> > @@ -326,8 +325,7 @@ static int pwm_imx27_probe(struct
> platform_device *pdev)
> >   	imx->chip.of_xlate = of_pwm_xlate_with_flags;
> >   	imx->chip.of_pwm_n_cells = 3;
> >
> > -	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> > -	imx->mmio_base = devm_ioremap_resource(&pdev->dev, r);
> > +	imx->mmio_base = devm_platform_ioremap_resource(pdev, 0);
> >   	if (IS_ERR(imx->mmio_base))
> >   		return PTR_ERR(imx->mmio_base);
> >