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From:   Mattijs Korpershoek <mkorpershoek@baylibre.com>
To:     AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@collabora.com>,
        dmitry.torokhov@gmail.com
Cc:     matthias.bgg@gmail.com, lv.ruyi@zte.com.cn,
        m.felsch@pengutronix.de, angelogioacchino.delregno@collabora.com,
        fengping.yu@mediatek.com, linux-input@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org,
        linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Input: mt6779-keypad: Move iomem pointer to probe function
In-Reply-To: <20220406115654.115093-1-angelogioacchino.delregno@collabora.com>
References: <20220406115654.115093-1-angelogioacchino.delregno@collabora.com>
Date:   Wed, 06 Apr 2022 14:41:16 +0200
Message-ID: <87czhu2xlf.fsf@baylibre.com>
MIME-Version: 1.0
Content-Type: text/plain
Precedence: bulk

On mer., avril 06, 2022 at 13:56, AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> wrote:

> The mmio base address is used for the only purpose of initializing
> regmap for this driver, hence it's not necessary to have it in the
> main driver structure, as it is used only in the probe() callback.
> Move it local to function mt6779_keypad_pdrv_probe().
>
> This commit brings no functional changes.
>
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

Thank you Angelo,

I planned to do this myself but I've been too slow :)

Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>

> ---
>  drivers/input/keyboard/mt6779-keypad.c | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/input/keyboard/mt6779-keypad.c b/drivers/input/keyboard/mt6779-keypad.c
> index 0dbbddc7f298..2e7c9187c10f 100644
> --- a/drivers/input/keyboard/mt6779-keypad.c
> +++ b/drivers/input/keyboard/mt6779-keypad.c
> @@ -24,7 +24,6 @@ struct mt6779_keypad {
>  	struct regmap *regmap;
>  	struct input_dev *input_dev;
>  	struct clk *clk;
> -	void __iomem *base;
>  	u32 n_rows;
>  	u32 n_cols;
>  	DECLARE_BITMAP(keymap_state, MTK_KPD_NUM_BITS);
> @@ -91,6 +90,7 @@ static void mt6779_keypad_clk_disable(void *data)
>  static int mt6779_keypad_pdrv_probe(struct platform_device *pdev)
>  {
>  	struct mt6779_keypad *keypad;
> +	void __iomem *base;
>  	int irq;
>  	u32 debounce;
>  	bool wakeup;
> @@ -100,11 +100,11 @@ static int mt6779_keypad_pdrv_probe(struct platform_device *pdev)
>  	if (!keypad)
>  		return -ENOMEM;
>  
> -	keypad->base = devm_platform_ioremap_resource(pdev, 0);
> -	if (IS_ERR(keypad->base))
> -		return PTR_ERR(keypad->base);
> +	base = devm_platform_ioremap_resource(pdev, 0);
> +	if (IS_ERR(base))
> +		return PTR_ERR(base);
>  
> -	keypad->regmap = devm_regmap_init_mmio(&pdev->dev, keypad->base,
> +	keypad->regmap = devm_regmap_init_mmio(&pdev->dev, base,
>  					       &mt6779_keypad_regmap_cfg);
>  	if (IS_ERR(keypad->regmap)) {
>  		dev_err(&pdev->dev,
> -- 
> 2.35.1