Re: [PATCH] watchdog: davinci_wdt: update to devm_* API

From: Sekhar Nori
Date: Thu Feb 07 2013 - 12:51:05 EST



On 2/7/2013 9:02 AM, Kumar, Anil wrote:
> Update the code to use devm_* API so that driver
> core will manage resources.
>
> Signed-off-by: Kumar, Anil <anilkumar.v@xxxxxx>
> ---
> This patch applies on top of v3.8-rc6.
>
> Tested on da850 EVM.
>
> :100644 100644 e8e8724... 6ad76a3... M drivers/watchdog/davinci_wdt.c
> drivers/watchdog/davinci_wdt.c | 34 +++++++++-------------------------
> 1 files changed, 9 insertions(+), 25 deletions(-)
>
> diff --git a/drivers/watchdog/davinci_wdt.c b/drivers/watchdog/davinci_wdt.c
> index e8e8724..6ad76a3 100644
> --- a/drivers/watchdog/davinci_wdt.c
> +++ b/drivers/watchdog/davinci_wdt.c
> @@ -69,7 +69,6 @@ static unsigned long wdt_status;
> #define WDT_REGION_INITED 2
> #define WDT_DEVICE_INITED 3
>
> -static struct resource *wdt_mem;
> static void __iomem *wdt_base;
> struct clk *wdt_clk;
>
> @@ -201,10 +200,10 @@ static struct miscdevice davinci_wdt_miscdev = {
>
> static int davinci_wdt_probe(struct platform_device *pdev)
> {
> - int ret = 0, size;
> - struct device *dev = &pdev->dev;

Its not clear why you had to drop use of this variable?

> + int ret = 0;
> + static struct resource *wdt_mem;
>
> - wdt_clk = clk_get(dev, NULL);
> + wdt_clk = clk_get(&pdev->dev, NULL);

When you are converting to use devres, why not convert this to
devm_clk_get() as well?

Thanks,
Sekhar
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