pinctrl: mediatek: common-v1: Commonize spec_ies_smt_set callback

All of the MediaTek pinctrl drivers registering with pinctrl-mtk-common
that are offering a .spec_ies_smt_set() callback are declaring their
own function which is doing exactly the same on all drivers: calling
mtk_pconf_spec_set_ies_smt_range() with their struct and a simple check.

Commonize this callback by adding the ies and smt structure pointers
to struct mtk_pinctrl_devdata and changing the callback signature to
take it.

Removing the callback and checking for the existance of the spec_smt
and/or spec_ies data would allow us to staticize the function
mtk_pconf_spec_set_ies_smt_range(), but this solution was avoided as
to keep flexibility, as some SoCs may need to perform a very different
operation compared to what this commonized function is doing.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20220222111144.20796-6-angelogioacchino.delregno@collabora.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Author: AngeloGioacchino Del Regno

drivers/pinctrl/mediatek/pinctrl-mt2701.c

@@ -429,18 +429,6 @@ static const struct mtk_pin_ies_smt_set mt2701_smt_set[] = {
 	MTK_PIN_IES_SMT_SPEC(278, 278, 0xb70, 13),
 };
 
-static int mt2701_ies_smt_set(struct regmap *regmap, unsigned int pin,
-		unsigned char align, int value, enum pin_config_param arg)
-{
-	if (arg == PIN_CONFIG_INPUT_ENABLE)
-		return mtk_pconf_spec_set_ies_smt_range(regmap, mt2701_ies_set,
-			ARRAY_SIZE(mt2701_ies_set), pin, align, value);
-	else if (arg == PIN_CONFIG_INPUT_SCHMITT_ENABLE)
-		return mtk_pconf_spec_set_ies_smt_range(regmap, mt2701_smt_set,
-			ARRAY_SIZE(mt2701_smt_set), pin, align, value);
-	return -EINVAL;
-}
-
 static const struct mtk_spec_pinmux_set mt2701_spec_pinmux[] = {
 	MTK_PINMUX_SPEC(22, 0xb10, 3),
 	MTK_PINMUX_SPEC(23, 0xb10, 4),
@@ -501,10 +489,14 @@ static const struct mtk_pinctrl_devdata mt2701_pinctrl_data = {
 	.n_grp_cls = ARRAY_SIZE(mt2701_drv_grp),
 	.pin_drv_grp = mt2701_pin_drv,
 	.n_pin_drv_grps = ARRAY_SIZE(mt2701_pin_drv),
+	.spec_ies = mt2701_ies_set,
+	.n_spec_ies = ARRAY_SIZE(mt2701_ies_set),
 	.spec_pupd = mt2701_spec_pupd,
 	.n_spec_pupd = ARRAY_SIZE(mt2701_spec_pupd),
+	.spec_smt = mt2701_smt_set,
+	.n_spec_smt = ARRAY_SIZE(mt2701_smt_set),
 	.spec_pull_set = mtk_pctrl_spec_pull_set_samereg,
-	.spec_ies_smt_set = mt2701_ies_smt_set,
+	.spec_ies_smt_set = mtk_pconf_spec_set_ies_smt_range,
 	.spec_pinmux_set = mt2701_spec_pinmux_set,
 	.spec_dir_set = mt2701_spec_dir_set,
 	.dir_offset = 0x0000,

drivers/pinctrl/mediatek/pinctrl-mt2712.c

@@ -275,19 +275,6 @@ static const struct mtk_pin_ies_smt_set mt2712_ies_set[] = {
 	MTK_PIN_IES_SMT_SPEC(207, 209, 0x8b0, 15)
 };
 
-static int mt2712_ies_smt_set(struct regmap *regmap, unsigned int pin,
-			      unsigned char align,
-			      int value, enum pin_config_param arg)
-{
-	if (arg == PIN_CONFIG_INPUT_ENABLE)
-		return mtk_pconf_spec_set_ies_smt_range(regmap, mt2712_ies_set,
-			ARRAY_SIZE(mt2712_ies_set), pin, align, value);
-	if (arg == PIN_CONFIG_INPUT_SCHMITT_ENABLE)
-		return mtk_pconf_spec_set_ies_smt_range(regmap, mt2712_smt_set,
-			ARRAY_SIZE(mt2712_smt_set), pin, align, value);
-	return -EINVAL;
-}
-
 static const struct mtk_drv_group_desc mt2712_drv_grp[] =  {
 	/* 0E4E8SR 4/8/12/16 */
 	MTK_DRV_GRP(4, 16, 1, 2, 4),
@@ -553,10 +540,14 @@ static const struct mtk_pinctrl_devdata mt2712_pinctrl_data = {
 	.n_grp_cls = ARRAY_SIZE(mt2712_drv_grp),
 	.pin_drv_grp = mt2712_pin_drv,
 	.n_pin_drv_grps = ARRAY_SIZE(mt2712_pin_drv),
+	.spec_ies = mt2712_ies_set,
+	.n_spec_ies = ARRAY_SIZE(mt2712_ies_set),
 	.spec_pupd = mt2712_spec_pupd,
 	.n_spec_pupd = ARRAY_SIZE(mt2712_spec_pupd),
+	.spec_smt = mt2712_smt_set,
+	.n_spec_smt = ARRAY_SIZE(mt2712_smt_set),
 	.spec_pull_set = mtk_pctrl_spec_pull_set_samereg,
-	.spec_ies_smt_set = mt2712_ies_smt_set,
+	.spec_ies_smt_set = mtk_pconf_spec_set_ies_smt_range,
 	.dir_offset = 0x0000,
 	.pullen_offset = 0x0100,
 	.pullsel_offset = 0x0200,

drivers/pinctrl/mediatek/pinctrl-mt8127.c

@@ -252,30 +252,21 @@ static const struct mtk_pin_ies_smt_set mt8127_smt_set[] = {
 	MTK_PIN_IES_SMT_SPEC(142, 142, 0x920, 13),
 };
 
-static int mt8127_ies_smt_set(struct regmap *regmap, unsigned int pin,
-		unsigned char align, int value, enum pin_config_param arg)
-{
-	if (arg == PIN_CONFIG_INPUT_ENABLE)
-		return mtk_pconf_spec_set_ies_smt_range(regmap, mt8127_ies_set,
-			ARRAY_SIZE(mt8127_ies_set), pin, align, value);
-	else if (arg == PIN_CONFIG_INPUT_SCHMITT_ENABLE)
-		return mtk_pconf_spec_set_ies_smt_range(regmap, mt8127_smt_set,
-			ARRAY_SIZE(mt8127_smt_set), pin, align, value);
-	return -EINVAL;
-}
-
-
 static const struct mtk_pinctrl_devdata mt8127_pinctrl_data = {
 	.pins = mtk_pins_mt8127,
 	.npins = ARRAY_SIZE(mtk_pins_mt8127),
 	.grp_desc = mt8127_drv_grp,
 	.n_grp_cls = ARRAY_SIZE(mt8127_drv_grp),
 	.pin_drv_grp = mt8127_pin_drv,
 	.n_pin_drv_grps = ARRAY_SIZE(mt8127_pin_drv),
+	.spec_ies = mt8127_ies_set,
+	.n_spec_ies = ARRAY_SIZE(mt8127_ies_set),
 	.spec_pupd = mt8127_spec_pupd,
 	.n_spec_pupd = ARRAY_SIZE(mt8127_spec_pupd),
+	.spec_smt = mt8127_smt_set,
+	.n_spec_smt = ARRAY_SIZE(mt8127_smt_set),
 	.spec_pull_set = mtk_pctrl_spec_pull_set_samereg,
-	.spec_ies_smt_set = mt8127_ies_smt_set,
+	.spec_ies_smt_set = mtk_pconf_spec_set_ies_smt_range,
 	.dir_offset = 0x0000,
 	.pullen_offset = 0x0100,
 	.pullsel_offset = 0x0200,

drivers/pinctrl/mediatek/pinctrl-mt8167.c

@@ -285,29 +285,21 @@ static const struct mtk_pin_ies_smt_set mt8167_smt_set[] = {
 	MTK_PIN_IES_SMT_SPEC(121, 124, 0xA10, 9),
 };
 
-static int mt8167_ies_smt_set(struct regmap *regmap, unsigned int pin,
-		unsigned char align, int value, enum pin_config_param arg)
-{
-	if (arg == PIN_CONFIG_INPUT_ENABLE)
-		return mtk_pconf_spec_set_ies_smt_range(regmap, mt8167_ies_set,
-			ARRAY_SIZE(mt8167_ies_set), pin, align, value);
-	else if (arg == PIN_CONFIG_INPUT_SCHMITT_ENABLE)
-		return mtk_pconf_spec_set_ies_smt_range(regmap, mt8167_smt_set,
-			ARRAY_SIZE(mt8167_smt_set), pin, align, value);
-	return -EINVAL;
-}
-
 static const struct mtk_pinctrl_devdata mt8167_pinctrl_data = {
 	.pins = mtk_pins_mt8167,
 	.npins = ARRAY_SIZE(mtk_pins_mt8167),
 	.grp_desc = mt8167_drv_grp,
 	.n_grp_cls = ARRAY_SIZE(mt8167_drv_grp),
 	.pin_drv_grp = mt8167_pin_drv,
 	.n_pin_drv_grps = ARRAY_SIZE(mt8167_pin_drv),
+	.spec_ies = mt8167_ies_set,
+	.n_spec_ies = ARRAY_SIZE(mt8167_ies_set),
 	.spec_pupd = mt8167_spec_pupd,
 	.n_spec_pupd = ARRAY_SIZE(mt8167_spec_pupd),
+	.spec_smt = mt8167_smt_set,
+	.n_spec_smt = ARRAY_SIZE(mt8167_smt_set),
 	.spec_pull_set = mtk_pctrl_spec_pull_set_samereg,
-	.spec_ies_smt_set = mt8167_ies_smt_set,
+	.spec_ies_smt_set = mtk_pconf_spec_set_ies_smt_range,
 	.dir_offset = 0x0000,
 	.pullen_offset = 0x0500,
 	.pullsel_offset = 0x0600,

drivers/pinctrl/mediatek/pinctrl-mt8173.c

@@ -167,18 +167,6 @@ static const struct mtk_pin_ies_smt_set mt8173_ies_set[] = {
 	MTK_PIN_IES_SMT_SPEC(133, 134, 0x910, 8)
 };
 
-static int mt8173_ies_smt_set(struct regmap *regmap, unsigned int pin,
-		unsigned char align, int value, enum pin_config_param arg)
-{
-	if (arg == PIN_CONFIG_INPUT_ENABLE)
-		return mtk_pconf_spec_set_ies_smt_range(regmap, mt8173_ies_set,
-			ARRAY_SIZE(mt8173_ies_set), pin, align, value);
-	else if (arg == PIN_CONFIG_INPUT_SCHMITT_ENABLE)
-		return mtk_pconf_spec_set_ies_smt_range(regmap, mt8173_smt_set,
-			ARRAY_SIZE(mt8173_smt_set), pin, align, value);
-	return -EINVAL;
-}
-
 static const struct mtk_drv_group_desc mt8173_drv_grp[] =  {
 	/* 0E4E8SR 4/8/12/16 */
 	MTK_DRV_GRP(4, 16, 1, 2, 4),
@@ -312,10 +300,14 @@ static const struct mtk_pinctrl_devdata mt8173_pinctrl_data = {
 	.n_grp_cls = ARRAY_SIZE(mt8173_drv_grp),
 	.pin_drv_grp = mt8173_pin_drv,
 	.n_pin_drv_grps = ARRAY_SIZE(mt8173_pin_drv),
+	.spec_ies = mt8173_ies_set,
+	.n_spec_ies = ARRAY_SIZE(mt8173_ies_set),
 	.spec_pupd = mt8173_spec_pupd,
 	.n_spec_pupd = ARRAY_SIZE(mt8173_spec_pupd),
+	.spec_smt = mt8173_smt_set,
+	.n_spec_smt = ARRAY_SIZE(mt8173_smt_set),
 	.spec_pull_set = mtk_pctrl_spec_pull_set_samereg,
-	.spec_ies_smt_set = mt8173_ies_smt_set,
+	.spec_ies_smt_set = mtk_pconf_spec_set_ies_smt_range,
 	.dir_offset = 0x0000,
 	.pullen_offset = 0x0100,
 	.pullsel_offset = 0x0200,

drivers/pinctrl/mediatek/pinctrl-mt8365.c

@@ -416,29 +416,21 @@ static const struct mtk_pin_ies_smt_set mt8365_smt_set[] = {
 	MTK_PIN_IES_SMT_SPEC(144, 144, 0x480, 22),
 };
 
-static int mt8365_ies_smt_set(struct regmap *regmap, unsigned int pin,
-		unsigned char align, int value, enum pin_config_param arg)
-{
-	if (arg == PIN_CONFIG_INPUT_ENABLE)
-		return mtk_pconf_spec_set_ies_smt_range(regmap, mt8365_ies_set,
-			ARRAY_SIZE(mt8365_ies_set), pin, align, value);
-	else if (arg == PIN_CONFIG_INPUT_SCHMITT_ENABLE)
-		return mtk_pconf_spec_set_ies_smt_range(regmap, mt8365_smt_set,
-			ARRAY_SIZE(mt8365_smt_set), pin, align, value);
-	return -EINVAL;
-}
-
 static const struct mtk_pinctrl_devdata mt8365_pinctrl_data = {
 	.pins = mtk_pins_mt8365,
 	.npins = ARRAY_SIZE(mtk_pins_mt8365),
 	.grp_desc = mt8365_drv_grp,
 	.n_grp_cls = ARRAY_SIZE(mt8365_drv_grp),
 	.pin_drv_grp = mt8365_pin_drv,
 	.n_pin_drv_grps = ARRAY_SIZE(mt8365_pin_drv),
+	.spec_ies = mt8365_ies_set,
+	.n_spec_ies = ARRAY_SIZE(mt8365_ies_set),
+	.spec_smt = mt8365_smt_set,
+	.n_spec_smt = ARRAY_SIZE(mt8365_smt_set),
 	.spec_pupd = mt8365_spec_pupd,
 	.n_spec_pupd = ARRAY_SIZE(mt8365_spec_pupd),
 	.spec_pull_set = mtk_pctrl_spec_pull_set_samereg,
-	.spec_ies_smt_set = mt8365_ies_smt_set,
+	.spec_ies_smt_set = mtk_pconf_spec_set_ies_smt_range,
 	.dir_offset = 0x0140,
 	.dout_offset = 0x00A0,
 	.din_offset = 0x0000,

drivers/pinctrl/mediatek/pinctrl-mt8516.c

@@ -285,29 +285,21 @@ static const struct mtk_pin_ies_smt_set mt8516_smt_set[] = {
 	MTK_PIN_IES_SMT_SPEC(121, 124, 0xA10, 9),
 };
 
-static int mt8516_ies_smt_set(struct regmap *regmap, unsigned int pin,
-		unsigned char align, int value, enum pin_config_param arg)
-{
-	if (arg == PIN_CONFIG_INPUT_ENABLE)
-		return mtk_pconf_spec_set_ies_smt_range(regmap, mt8516_ies_set,
-			ARRAY_SIZE(mt8516_ies_set), pin, align, value);
-	else if (arg == PIN_CONFIG_INPUT_SCHMITT_ENABLE)
-		return mtk_pconf_spec_set_ies_smt_range(regmap, mt8516_smt_set,
-			ARRAY_SIZE(mt8516_smt_set), pin, align, value);
-	return -EINVAL;
-}
-
 static const struct mtk_pinctrl_devdata mt8516_pinctrl_data = {
 	.pins = mtk_pins_mt8516,
 	.npins = ARRAY_SIZE(mtk_pins_mt8516),
 	.grp_desc = mt8516_drv_grp,
 	.n_grp_cls = ARRAY_SIZE(mt8516_drv_grp),
 	.pin_drv_grp = mt8516_pin_drv,
 	.n_pin_drv_grps = ARRAY_SIZE(mt8516_pin_drv),
+	.spec_ies = mt8516_ies_set,
+	.n_spec_ies = ARRAY_SIZE(mt8516_ies_set),
 	.spec_pupd = mt8516_spec_pupd,
 	.n_spec_pupd = ARRAY_SIZE(mt8516_spec_pupd),
+	.spec_smt = mt8516_smt_set,
+	.n_spec_smt = ARRAY_SIZE(mt8516_smt_set),
 	.spec_pull_set = mtk_pctrl_spec_pull_set_samereg,
-	.spec_ies_smt_set = mt8516_ies_smt_set,
+	.spec_ies_smt_set = mtk_pconf_spec_set_ies_smt_range,
 	.dir_offset = 0x0000,
 	.pullen_offset = 0x0500,
 	.pullsel_offset = 0x0600,

drivers/pinctrl/mediatek/pinctrl-mtk-common.c

@@ -131,7 +131,7 @@ static int mtk_pconf_set_ies_smt(struct mtk_pinctrl *pctl, unsigned pin,
 	 */
 	if (pctl->devdata->spec_ies_smt_set) {
 		return pctl->devdata->spec_ies_smt_set(mtk_get_regmap(pctl, pin),
-			pin, pctl->devdata->port_align, value, arg);
+			pctl->devdata, pin, value, arg);
 	}
 
 	if (arg == PIN_CONFIG_INPUT_ENABLE)
@@ -151,10 +151,27 @@ static int mtk_pconf_set_ies_smt(struct mtk_pinctrl *pctl, unsigned pin,
 }
 
 int mtk_pconf_spec_set_ies_smt_range(struct regmap *regmap,
-		const struct mtk_pin_ies_smt_set *ies_smt_infos, unsigned int info_num,
-		unsigned int pin, unsigned char align, int value)
+		const struct mtk_pinctrl_devdata *devdata,
+		unsigned int pin, int value, enum pin_config_param arg)
 {
-	unsigned int i, reg_addr, bit;
+	const struct mtk_pin_ies_smt_set *ies_smt_infos = NULL;
+	unsigned int i, info_num, reg_addr, bit;
+
+	switch (arg) {
+	case PIN_CONFIG_INPUT_ENABLE:
+		ies_smt_infos = devdata->spec_ies;
+		info_num = devdata->n_spec_ies;
+		break;
+	case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
+		ies_smt_infos = devdata->spec_smt;
+		info_num = devdata->n_spec_smt;
+		break;
+	default:
+		break;
+	};
+
+	if (!ies_smt_infos)
+		return -EINVAL;
 
 	for (i = 0; i < info_num; i++) {
 		if (pin >= ies_smt_infos[i].start &&
@@ -167,9 +184,9 @@ int mtk_pconf_spec_set_ies_smt_range(struct regmap *regmap,
 		return -EINVAL;
 
 	if (value)
-		reg_addr = ies_smt_infos[i].offset + align;
+		reg_addr = ies_smt_infos[i].offset + devdata->port_align;
 	else
-		reg_addr = ies_smt_infos[i].offset + (align << 1);
+		reg_addr = ies_smt_infos[i].offset + (devdata->port_align << 1);
 
 	bit = BIT(ies_smt_infos[i].bit);
 	regmap_write(regmap, reg_addr, bit);

drivers/pinctrl/mediatek/pinctrl-mtk-common.h

@@ -193,8 +193,12 @@ struct mtk_eint_offsets {
  *
  * @grp_desc: The driving group info.
  * @pin_drv_grp: The driving group for all pins.
+ * @spec_ies: Special pin setting for input enable
+ * @n_spec_ies: Number of entries in spec_ies
  * @spec_pupd: Special pull up/down setting
  * @n_spec_pupd: Number of entries in spec_pupd
+ * @spec_smt: Special pin setting for schmitt
+ * @n_spec_smt: Number of entries in spec_smt
  * @spec_pull_set: Each SoC may have special pins for pull up/down setting,
  *  these pins' pull setting are very different, they have separate pull
  *  up/down bit, R0 and R1 resistor bit, so they need special pull setting.
@@ -233,13 +237,18 @@ struct mtk_pinctrl_devdata {
 	unsigned int	n_grp_cls;
 	const struct mtk_pin_drv_grp	*pin_drv_grp;
 	unsigned int	n_pin_drv_grps;
+	const struct mtk_pin_ies_smt_set *spec_ies;
+	unsigned int n_spec_ies;
 	const struct mtk_pin_spec_pupd_set_samereg *spec_pupd;
 	unsigned int n_spec_pupd;
+	const struct mtk_pin_ies_smt_set *spec_smt;
+	unsigned int n_spec_smt;
 	int (*spec_pull_set)(struct regmap *regmap,
 			const struct mtk_pinctrl_devdata *devdata,
 			unsigned int pin, bool isup, unsigned int r1r0);
-	int (*spec_ies_smt_set)(struct regmap *reg, unsigned int pin,
-			unsigned char align, int value, enum pin_config_param arg);
+	int (*spec_ies_smt_set)(struct regmap *reg,
+			const struct mtk_pinctrl_devdata *devdata,
+			unsigned int pin, int value, enum pin_config_param arg);
 	void (*spec_pinmux_set)(struct regmap *reg, unsigned int pin,
 			unsigned int mode);
 	void (*spec_dir_set)(unsigned int *reg_addr, unsigned int pin);
@@ -289,8 +298,8 @@ int mtk_pctrl_spec_pull_set_samereg(struct regmap *regmap,
 		unsigned int pin, bool isup, unsigned int r1r0);
 
 int mtk_pconf_spec_set_ies_smt_range(struct regmap *regmap,
-		const struct mtk_pin_ies_smt_set *ies_smt_infos, unsigned int info_num,
-		unsigned int pin, unsigned char align, int value);
+		const struct mtk_pinctrl_devdata *devdata,
+		unsigned int pin, int value, enum pin_config_param arg);
 
 extern const struct dev_pm_ops mtk_eint_pm_ops;