pinctrl: sh-pfc: rcar-gen3: Retain TDSELCTRL register across suspend/resume

The TDSELCTRL register is responsible for configuring the SDHI/MMC clock
return path delay and may be adjusted by the bootloader. Retain the value
across suspend/resume to prevent hardware instability after resume.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

8 files changed, 24 insertions, 0 deletions

diff --git a/drivers/pinctrl/sh-pfc/pfc-r8a7795-es1.c b/drivers/pinctrl/sh-pfc/pfc-r8a7795-es1.c
index 287cfbb7e992..0ef7ada08316 100644
--- a/drivers/pinctrl/sh-pfc/pfc-r8a7795-es1.c
+++ b/drivers/pinctrl/sh-pfc/pfc-r8a7795-es1.c
@@ -5547,10 +5547,12 @@ static const struct pinmux_drive_reg pinmux_drive_regs[] = {
 
 enum ioctrl_regs {
 	POCCTRL,
+	TDSELCTRL,
 };
 
 static const struct pinmux_ioctrl_reg pinmux_ioctrl_regs[] = {
 	[POCCTRL] = { 0xe6060380, },
+	[TDSELCTRL] = { 0xe60603c0, },
 	{ /* sentinel */ },
 };
 
diff --git a/drivers/pinctrl/sh-pfc/pfc-r8a7795.c b/drivers/pinctrl/sh-pfc/pfc-r8a7795.c
index db9add1405c5..1a987dfea46f 100644
--- a/drivers/pinctrl/sh-pfc/pfc-r8a7795.c
+++ b/drivers/pinctrl/sh-pfc/pfc-r8a7795.c
@@ -5897,10 +5897,12 @@ static const struct pinmux_drive_reg pinmux_drive_regs[] = {
 
 enum ioctrl_regs {
 	POCCTRL,
+	TDSELCTRL,
 };
 
 static const struct pinmux_ioctrl_reg pinmux_ioctrl_regs[] = {
 	[POCCTRL] = { 0xe6060380, },
+	[TDSELCTRL] = { 0xe60603c0, },
 	{ /* sentinel */ },
 };
 
diff --git a/drivers/pinctrl/sh-pfc/pfc-r8a7796.c b/drivers/pinctrl/sh-pfc/pfc-r8a7796.c
index 3481ff86938c..a99c519e05a0 100644
--- a/drivers/pinctrl/sh-pfc/pfc-r8a7796.c
+++ b/drivers/pinctrl/sh-pfc/pfc-r8a7796.c
@@ -5855,10 +5855,12 @@ static const struct pinmux_drive_reg pinmux_drive_regs[] = {
 
 enum ioctrl_regs {
 	POCCTRL,
+	TDSELCTRL,
 };
 
 static const struct pinmux_ioctrl_reg pinmux_ioctrl_regs[] = {
 	[POCCTRL] = { 0xe6060380, },
+	[TDSELCTRL] = { 0xe60603c0, },
 	{ /* sentinel */ },
 };
 
diff --git a/drivers/pinctrl/sh-pfc/pfc-r8a77965.c b/drivers/pinctrl/sh-pfc/pfc-r8a77965.c
index 14c4b671cddf..820b74ca9d10 100644
--- a/drivers/pinctrl/sh-pfc/pfc-r8a77965.c
+++ b/drivers/pinctrl/sh-pfc/pfc-r8a77965.c
@@ -6012,10 +6012,12 @@ static const struct pinmux_drive_reg pinmux_drive_regs[] = {
 
 enum ioctrl_regs {
 	POCCTRL,
+	TDSELCTRL,
 };
 
 static const struct pinmux_ioctrl_reg pinmux_ioctrl_regs[] = {
 	[POCCTRL] = { 0xe6060380, },
+	[TDSELCTRL] = { 0xe60603c0, },
 	{ /* sentinel */ },
 };
 
diff --git a/drivers/pinctrl/sh-pfc/pfc-r8a77970.c b/drivers/pinctrl/sh-pfc/pfc-r8a77970.c
index e2d1b49aaee6..f5868f5e4018 100644
--- a/drivers/pinctrl/sh-pfc/pfc-r8a77970.c
+++ b/drivers/pinctrl/sh-pfc/pfc-r8a77970.c
@@ -2409,12 +2409,14 @@ enum ioctrl_regs {
 	POCCTRL0,
 	POCCTRL1,
 	POCCTRL2,
+	TDSELCTRL,
 };
 
 static const struct pinmux_ioctrl_reg pinmux_ioctrl_regs[] = {
 	[POCCTRL0] = { 0xe6060380 },
 	[POCCTRL1] = { 0xe6060384 },
 	[POCCTRL2] = { 0xe6060388 },
+	[TDSELCTRL] = { 0xe60603c0, },
 	{ /* sentinel */ },
 };
 
diff --git a/drivers/pinctrl/sh-pfc/pfc-r8a77980.c b/drivers/pinctrl/sh-pfc/pfc-r8a77980.c
index 1dcc508366b8..376e689c7378 100644
--- a/drivers/pinctrl/sh-pfc/pfc-r8a77980.c
+++ b/drivers/pinctrl/sh-pfc/pfc-r8a77980.c
@@ -2832,6 +2832,7 @@ enum ioctrl_regs {
 	POCCTRL1,
 	POCCTRL2,
 	POCCTRL3,
+	TDSELCTRL,
 };
 
 static const struct pinmux_ioctrl_reg pinmux_ioctrl_regs[] = {
@@ -2839,6 +2840,7 @@ static const struct pinmux_ioctrl_reg pinmux_ioctrl_regs[] = {
 	[POCCTRL1] = { 0xe6060384, },
 	[POCCTRL2] = { 0xe6060388, },
 	[POCCTRL3] = { 0xe606038c, },
+	[TDSELCTRL] = { 0xe60603c0, },
 	{ /* sentinel */ },
 };
 
diff --git a/drivers/pinctrl/sh-pfc/pfc-r8a77990.c b/drivers/pinctrl/sh-pfc/pfc-r8a77990.c
index 7ed6c305a3d3..1a8d1ae896c0 100644
--- a/drivers/pinctrl/sh-pfc/pfc-r8a77990.c
+++ b/drivers/pinctrl/sh-pfc/pfc-r8a77990.c
@@ -4996,10 +4996,12 @@ static const struct pinmux_cfg_reg pinmux_config_regs[] = {
 
 enum ioctrl_regs {
 	POCCTRL0,
+	TDSELCTRL,
 };
 
 static const struct pinmux_ioctrl_reg pinmux_ioctrl_regs[] = {
 	[POCCTRL0] = { 0xe6060380, },
+	[TDSELCTRL] = { 0xe60603c0, },
 	{ /* sentinel */ },
 };
 
diff --git a/drivers/pinctrl/sh-pfc/pfc-r8a77995.c b/drivers/pinctrl/sh-pfc/pfc-r8a77995.c
index 9e377e3b9cb3..0acdfb8bf077 100644
--- a/drivers/pinctrl/sh-pfc/pfc-r8a77995.c
+++ b/drivers/pinctrl/sh-pfc/pfc-r8a77995.c
@@ -2833,6 +2833,15 @@ static int r8a77995_pin_to_pocctrl(struct sh_pfc *pfc, unsigned int pin, u32 *po
 	return bit;
 }
 
+enum ioctrl_regs {
+	TDSELCTRL,
+};
+
+static const struct pinmux_ioctrl_reg pinmux_ioctrl_regs[] = {
+	[TDSELCTRL] = { 0xe60603c0, },
+	{ /* sentinel */ },
+};
+
 static const struct sh_pfc_soc_operations r8a77995_pinmux_ops = {
 	.pin_to_pocctrl = r8a77995_pin_to_pocctrl,
 };
@@ -2852,6 +2861,7 @@ const struct sh_pfc_soc_info r8a77995_pinmux_info = {
 	.nr_functions = ARRAY_SIZE(pinmux_functions),
 
 	.cfg_regs = pinmux_config_regs,
+	.ioctrl_regs = pinmux_ioctrl_regs,
 
 	.pinmux_data = pinmux_data,
 	.pinmux_data_size = ARRAY_SIZE(pinmux_data),