linux-kernel - Re: [PATCH v2 1/3] Input: mtk-pmic-keys - Transfer per-key bit in mtk_pmic_keys

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Message-ID: <87leurdtl4.fsf@baylibre.com>
Date:   Tue, 24 May 2022 14:05:11 +0200
From:   Mattijs Korpershoek <mkorpershoek@...libre.com>
To:     AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        dmitry.torokhov@...il.com
Cc:     matthias.bgg@...il.com, angelogioacchino.delregno@...labora.com,
        linux-input@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/3] Input: mtk-pmic-keys - Transfer per-key bit in
 mtk_pmic_keys_regs

On mar., mai 24, 2022 at 11:35, AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com> wrote:

> Place the key bit in struct mtk_pmic_keys_regs to enhance this
> driver's flexibility, in preparation for adding support for more
> PMICs.
>
> While at it, remove the definition of MTK_PMIC_RST_KEY_MASK as
> we are now dynamically setting the keymask relatively to the keys
> that are defined in the newly added rst_en_mask variable, on a
> per-key basis.
>
> This commit brings no functional changes.
>
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>

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

> ---
>  drivers/input/keyboard/mtk-pmic-keys.c | 30 ++++++++++++++++----------
>  1 file changed, 19 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/input/keyboard/mtk-pmic-keys.c b/drivers/input/keyboard/mtk-pmic-keys.c
> index d2f0db245ff6..2509a349a173 100644
> --- a/drivers/input/keyboard/mtk-pmic-keys.c
> +++ b/drivers/input/keyboard/mtk-pmic-keys.c
> @@ -20,7 +20,6 @@
>  
>  #define MTK_PMIC_RST_DU_MASK	GENMASK(9, 8)
>  #define MTK_PMIC_RST_DU_SHIFT	8
> -#define MTK_PMIC_RST_KEY_MASK	GENMASK(6, 5)
>  #define MTK_PMIC_PWRKEY_RST	BIT(6)
>  #define MTK_PMIC_HOMEKEY_RST	BIT(5)
>  
> @@ -33,15 +32,17 @@ struct mtk_pmic_keys_regs {
>  	u32 deb_mask;
>  	u32 intsel_reg;
>  	u32 intsel_mask;
> +	u32 rst_en_mask;
>  };
>  
>  #define MTK_PMIC_KEYS_REGS(_deb_reg, _deb_mask,		\
> -	_intsel_reg, _intsel_mask)			\
> +	_intsel_reg, _intsel_mask, _rst_mask)		\
>  {							\
>  	.deb_reg		= _deb_reg,		\
>  	.deb_mask		= _deb_mask,		\
>  	.intsel_reg		= _intsel_reg,		\
>  	.intsel_mask		= _intsel_mask,		\
> +	.rst_en_mask		= _rst_mask,		\
>  }
>  
>  struct mtk_pmic_regs {
> @@ -52,30 +53,32 @@ struct mtk_pmic_regs {
>  static const struct mtk_pmic_regs mt6397_regs = {
>  	.keys_regs[MTK_PMIC_PWRKEY_INDEX] =
>  		MTK_PMIC_KEYS_REGS(MT6397_CHRSTATUS,
> -		0x8, MT6397_INT_RSV, 0x10),
> +		0x8, MT6397_INT_RSV, 0x10, MTK_PMIC_PWRKEY_RST),
>  	.keys_regs[MTK_PMIC_HOMEKEY_INDEX] =
>  		MTK_PMIC_KEYS_REGS(MT6397_OCSTATUS2,
> -		0x10, MT6397_INT_RSV, 0x8),
> +		0x10, MT6397_INT_RSV, 0x8, MTK_PMIC_HOMEKEY_RST),
>  	.pmic_rst_reg = MT6397_TOP_RST_MISC,
>  };
>  
>  static const struct mtk_pmic_regs mt6323_regs = {
>  	.keys_regs[MTK_PMIC_PWRKEY_INDEX] =
>  		MTK_PMIC_KEYS_REGS(MT6323_CHRSTATUS,
> -		0x2, MT6323_INT_MISC_CON, 0x10),
> +		0x2, MT6323_INT_MISC_CON, 0x10, MTK_PMIC_PWRKEY_RST),
>  	.keys_regs[MTK_PMIC_HOMEKEY_INDEX] =
>  		MTK_PMIC_KEYS_REGS(MT6323_CHRSTATUS,
> -		0x4, MT6323_INT_MISC_CON, 0x8),
> +		0x4, MT6323_INT_MISC_CON, 0x8, MTK_PMIC_HOMEKEY_RST),
>  	.pmic_rst_reg = MT6323_TOP_RST_MISC,
>  };
>  
>  static const struct mtk_pmic_regs mt6358_regs = {
>  	.keys_regs[MTK_PMIC_PWRKEY_INDEX] =
>  		MTK_PMIC_KEYS_REGS(MT6358_TOPSTATUS,
> -				   0x2, MT6358_PSC_TOP_INT_CON0, 0x5),
> +				   0x2, MT6358_PSC_TOP_INT_CON0, 0x5,
> +				   MTK_PMIC_PWRKEY_RST),
>  	.keys_regs[MTK_PMIC_HOMEKEY_INDEX] =
>  		MTK_PMIC_KEYS_REGS(MT6358_TOPSTATUS,
> -				   0x8, MT6358_PSC_TOP_INT_CON0, 0xa),
> +				   0x8, MT6358_PSC_TOP_INT_CON0, 0xa,
> +				   MTK_PMIC_HOMEKEY_RST),
>  	.pmic_rst_reg = MT6358_TOP_RST_MISC,
>  };
>  
> @@ -104,10 +107,14 @@ enum mtk_pmic_keys_lp_mode {
>  static void mtk_pmic_keys_lp_reset_setup(struct mtk_pmic_keys *keys,
>  					 u32 pmic_rst_reg)
>  {
> +	const struct mtk_pmic_keys_regs *kregs_home, *kregs_pwr;
>  	u32 long_press_mode, long_press_debounce;
>  	u32 value, mask;
>  	int error;
>  
> +	kregs_home = keys->keys[MTK_PMIC_HOMEKEY_INDEX].regs;
> +	kregs_pwr = keys->keys[MTK_PMIC_PWRKEY_INDEX].regs;
> +
>  	error = of_property_read_u32(keys->dev->of_node, "power-off-time-sec",
>  				     &long_press_debounce);
>  	if (error)
> @@ -124,15 +131,16 @@ static void mtk_pmic_keys_lp_reset_setup(struct mtk_pmic_keys *keys,
>  
>  	switch (long_press_mode) {
>  	case LP_TWOKEY:
> -		value |= MTK_PMIC_HOMEKEY_RST;
> +		value |= kregs_home->rst_en_mask;
>  		fallthrough;
>  
>  	case LP_ONEKEY:
> -		value |= MTK_PMIC_PWRKEY_RST;
> +		value |= kregs_pwr->rst_en_mask;
>  		fallthrough;
>  
>  	case LP_DISABLE:
> -		mask |= MTK_PMIC_RST_KEY_MASK;
> +		mask |= kregs_home->rst_en_mask;
> +		mask |= kregs_pwr->rst_en_mask;
>  		break;
>  
>  	default:
> -- 
> 2.35.1