linux-kernel - Re: [PATCH] input: keyboard: imx: use devm_platform_ioremap

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Date:   Mon, 1 Apr 2019 13:29:29 +0530
From:   Mukesh Ojha <mojha@...eaurora.org>
To:     Anson Huang <anson.huang@....com>,
        "dmitry.torokhov@...il.com" <dmitry.torokhov@...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-input@...r.kernel.org" <linux-input@...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] input: keyboard: imx: use
 devm_platform_ioremap_resource() to simplify code


On 4/1/2019 10:58 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/input/keyboard/imx_keypad.c | 4 +---
>   1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/drivers/input/keyboard/imx_keypad.c b/drivers/input/keyboard/imx_keypad.c
> index 539cb67..cf08f4a 100644
> --- a/drivers/input/keyboard/imx_keypad.c
> +++ b/drivers/input/keyboard/imx_keypad.c
> @@ -422,7 +422,6 @@ static int imx_keypad_probe(struct platform_device *pdev)
>   			dev_get_platdata(&pdev->dev);
>   	struct imx_keypad *keypad;
>   	struct input_dev *input_dev;
> -	struct resource *res;
>   	int irq, error, i, row, col;
>   
>   	if (!keymap_data && !pdev->dev.of_node) {
> @@ -455,8 +454,7 @@ static int imx_keypad_probe(struct platform_device *pdev)
>   	timer_setup(&keypad->check_matrix_timer,
>   		    imx_keypad_check_for_events, 0);
>   
> -	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> -	keypad->mmio_base = devm_ioremap_resource(&pdev->dev, res);
> +	keypad->mmio_base = devm_platform_ioremap_resource(pdev, 0);
>   	if (IS_ERR(keypad->mmio_base))
>   		return PTR_ERR(keypad->mmio_base);
>