Merge tag 'pinctrl-v4.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control updates from Linus Walleij:
 "This kernel cycle was quite calm when it comes to pin control and
  there is really just one major change, and that is the introduction of
  devm_pinctrl_register() managed resources.

  Apart from that linear development, details below.

  Core changes:

   - Add the devm_pinctrl_register() API and switch all applicable
     drivers to use it, saving lots of lines of code all over the place.

  New drivers:

   - driver for the Broadcom NS2 SoC

   - subdriver for the PXA25x SoCs

   - subdriver for the AMLogic Meson GXBB SoC

  Driver improvements:

   - the Intel Baytrail driver now properly supports pin control

   - Nomadik, Rockchip, Broadcom BCM2835 support the .get_direction()
     callback in the GPIO portions

   - continued development and stabilization of several SH-PFC SoC
     subdrivers: r8a7795, r8a7790, r8a7794 etc"

* tag 'pinctrl-v4.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (85 commits)
  Revert "pinctrl: tegra: avoid parked_reg and parked_bank"
  pinctrl: meson: Fix eth_tx_en bit index
  pinctrl: tegra: avoid parked_reg and parked_bank
  pinctrl: tegra: Correctly check the supported configuration
  pinctrl: amlogic: Add support for Amlogic Meson GXBB SoC
  pinctrl: rockchip: fix pull setting error for rk3399
  pinctrl: stm32: Implement .pin_config_dbg_show()
  pinctrl: nomadik: hide nmk_gpio_get_mode when unused
  pinctrl: ns2: rename pinctrl_utils_dt_free_map
  pinctrl: at91: Merge clk_prepare and clk_enable into clk_prepare_enable
  pinctrl: at91: Make at91_gpio_template const
  pinctrl: baytrail: fix some error handling in debugfs
  pinctrl: ns2: add pinmux driver support for Broadcom NS2 SoC
  pinctrl: sirf/atlas7: trivial fix of spelling mistake on flagged
  pinctrl: sh-pfc: Kill unused variable in sh_pfc_remove()
  pinctrl: nomadik: implement .get_direction()
  pinctrl: nomadik: use BIT() with offsets consequently
  pinctrl: exynos5440: Use off-stack memory for pinctrl_gpio_range
  pinctrl: zynq: Use devm_pinctrl_register() for pinctrl registration
  pinctrl: u300: Use devm_pinctrl_register() for pinctrl registration
  ...

7 files changed, 629 insertions, 28 deletions

diff --git a/drivers/pinctrl/sh-pfc/core.c b/drivers/pinctrl/sh-pfc/core.c
index ee0c1f2567d9..9b9cee06ec59 100644
--- a/drivers/pinctrl/sh-pfc/core.c
+++ b/drivers/pinctrl/sh-pfc/core.c
@@ -175,6 +175,21 @@ void sh_pfc_write_raw_reg(void __iomem *mapped_reg, unsigned int reg_width,
 	BUG();
 }
 
+u32 sh_pfc_read_reg(struct sh_pfc *pfc, u32 reg, unsigned int width)
+{
+	return sh_pfc_read_raw_reg(sh_pfc_phys_to_virt(pfc, reg), width);
+}
+
+void sh_pfc_write_reg(struct sh_pfc *pfc, u32 reg, unsigned int width, u32 data)
+{
+	if (pfc->info->unlock_reg)
+		sh_pfc_write_raw_reg(
+			sh_pfc_phys_to_virt(pfc, pfc->info->unlock_reg), 32,
+			~data);
+
+	sh_pfc_write_raw_reg(sh_pfc_phys_to_virt(pfc, reg), width, data);
+}
+
 static void sh_pfc_config_reg_helper(struct sh_pfc *pfc,
 				     const struct pinmux_cfg_reg *crp,
 				     unsigned int in_pos,
@@ -585,12 +600,9 @@ static int sh_pfc_probe(struct platform_device *pdev)
 
 static int sh_pfc_remove(struct platform_device *pdev)
 {
-	struct sh_pfc *pfc = platform_get_drvdata(pdev);
-
 #ifdef CONFIG_PINCTRL_SH_PFC_GPIO
-	sh_pfc_unregister_gpiochip(pfc);
+	sh_pfc_unregister_gpiochip(platform_get_drvdata(pdev));
 #endif
-	sh_pfc_unregister_pinctrl(pfc);
 
 	return 0;
 }
diff --git a/drivers/pinctrl/sh-pfc/core.h b/drivers/pinctrl/sh-pfc/core.h
index 62f53b22ae85..dc1b2adb24c5 100644
--- a/drivers/pinctrl/sh-pfc/core.h
+++ b/drivers/pinctrl/sh-pfc/core.h
@@ -50,18 +50,19 @@ struct sh_pfc {
 	struct sh_pfc_chip *func;
 #endif
 
-	struct sh_pfc_pinctrl *pinctrl;
 };
 
 int sh_pfc_register_gpiochip(struct sh_pfc *pfc);
 int sh_pfc_unregister_gpiochip(struct sh_pfc *pfc);
 
 int sh_pfc_register_pinctrl(struct sh_pfc *pfc);
-int sh_pfc_unregister_pinctrl(struct sh_pfc *pfc);
 
 u32 sh_pfc_read_raw_reg(void __iomem *mapped_reg, unsigned int reg_width);
 void sh_pfc_write_raw_reg(void __iomem *mapped_reg, unsigned int reg_width,
 			  u32 data);
+u32 sh_pfc_read_reg(struct sh_pfc *pfc, u32 reg, unsigned int width);
+void sh_pfc_write_reg(struct sh_pfc *pfc, u32 reg, unsigned int width,
+		      u32 data);
 
 int sh_pfc_get_pin_index(struct sh_pfc *pfc, unsigned int pin);
 int sh_pfc_config_mux(struct sh_pfc *pfc, unsigned mark, int pinmux_type);
diff --git a/drivers/pinctrl/sh-pfc/pfc-r8a7790.c b/drivers/pinctrl/sh-pfc/pfc-r8a7790.c
index 0f4d48f9400b..eed8daa464cc 100644
--- a/drivers/pinctrl/sh-pfc/pfc-r8a7790.c
+++ b/drivers/pinctrl/sh-pfc/pfc-r8a7790.c
@@ -21,16 +21,21 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
+#include <linux/io.h>
 #include <linux/kernel.h>
 
 #include "core.h"
 #include "sh_pfc.h"
 
+/*
+ * All pins assigned to GPIO bank 3 can be used for SD interfaces in
+ * which case they support both 3.3V and 1.8V signalling.
+ */
 #define CPU_ALL_PORT(fn, sfx)						\
 	PORT_GP_32(0, fn, sfx),						\
 	PORT_GP_30(1, fn, sfx),						\
 	PORT_GP_30(2, fn, sfx),						\
-	PORT_GP_32(3, fn, sfx),						\
+	PORT_GP_CFG_32(3, fn, sfx, SH_PFC_PIN_CFG_IO_VOLTAGE),		\
 	PORT_GP_32(4, fn, sfx),						\
 	PORT_GP_32(5, fn, sfx)
 
@@ -4691,6 +4696,47 @@ static const char * const vin3_groups[] = {
 	"vin3_clk",
 };
 
+#define IOCTRL6 0x8c
+
+static int r8a7790_get_io_voltage(struct sh_pfc *pfc, unsigned int pin)
+{
+	u32 data, mask;
+
+	if (WARN(pin < RCAR_GP_PIN(3, 0) || pin > RCAR_GP_PIN(3, 31), "invalid pin %#x", pin))
+		return -EINVAL;
+
+	data = ioread32(pfc->windows->virt + IOCTRL6),
+	/* Bits in IOCTRL6 are numbered in opposite order to pins */
+	mask = 0x80000000 >> (pin & 0x1f);
+
+	return (data & mask) ? 3300 : 1800;
+}
+
+static int r8a7790_set_io_voltage(struct sh_pfc *pfc, unsigned int pin, u16 mV)
+{
+	u32 data, mask;
+
+	if (WARN(pin < RCAR_GP_PIN(3, 0) || pin > RCAR_GP_PIN(3, 31), "invalid pin %#x", pin))
+		return -EINVAL;
+
+	if (mV != 1800 && mV != 3300)
+		return -EINVAL;
+
+	data = ioread32(pfc->windows->virt + IOCTRL6);
+	/* Bits in IOCTRL6 are numbered in opposite order to pins */
+	mask = 0x80000000 >> (pin & 0x1f);
+
+	if (mV == 3300)
+		data |= mask;
+	else
+		data &= ~mask;
+
+	iowrite32(~data, pfc->windows->virt); /* unlock reg */
+	iowrite32(data, pfc->windows->virt + IOCTRL6);
+
+	return 0;
+}
+
 static const struct sh_pfc_function pinmux_functions[] = {
 	SH_PFC_FUNCTION(audio_clk),
 	SH_PFC_FUNCTION(avb),
@@ -5690,8 +5736,14 @@ static const struct pinmux_cfg_reg pinmux_config_regs[] = {
 	{ },
 };
 
+static const struct sh_pfc_soc_operations pinmux_ops = {
+	.get_io_voltage = r8a7790_get_io_voltage,
+	.set_io_voltage = r8a7790_set_io_voltage,
+};
+
 const struct sh_pfc_soc_info r8a7790_pinmux_info = {
 	.name = "r8a77900_pfc",
+	.ops = &pinmux_ops,
 	.unlock_reg = 0xe6060000, /* PMMR */
 
 	.function = { PINMUX_FUNCTION_BEGIN, PINMUX_FUNCTION_END },
diff --git a/drivers/pinctrl/sh-pfc/pfc-r8a7794.c b/drivers/pinctrl/sh-pfc/pfc-r8a7794.c
index 38912cff597b..8bc2cf0c594e 100644
--- a/drivers/pinctrl/sh-pfc/pfc-r8a7794.c
+++ b/drivers/pinctrl/sh-pfc/pfc-r8a7794.c
@@ -1682,6 +1682,179 @@ static const unsigned int avb_avtp_match_b_pins[] = {
 static const unsigned int avb_avtp_match_b_mux[] = {
 	AVB_AVTP_MATCH_B_MARK,
 };
+/* - DU --------------------------------------------------------------------- */
+static const unsigned int du0_rgb666_pins[] = {
+	/* R[7:2], G[7:2], B[7:2] */
+	RCAR_GP_PIN(2, 7),  RCAR_GP_PIN(2, 6),  RCAR_GP_PIN(2, 5),
+	RCAR_GP_PIN(2, 4),  RCAR_GP_PIN(2, 3),  RCAR_GP_PIN(2, 2),
+	RCAR_GP_PIN(2, 15), RCAR_GP_PIN(2, 14), RCAR_GP_PIN(2, 13),
+	RCAR_GP_PIN(2, 12), RCAR_GP_PIN(2, 11), RCAR_GP_PIN(2, 10),
+	RCAR_GP_PIN(2, 23), RCAR_GP_PIN(2, 22), RCAR_GP_PIN(2, 21),
+	RCAR_GP_PIN(2, 20), RCAR_GP_PIN(2, 19), RCAR_GP_PIN(2, 18),
+};
+static const unsigned int du0_rgb666_mux[] = {
+	DU0_DR7_MARK, DU0_DR6_MARK, DU0_DR5_MARK, DU0_DR4_MARK,
+	DU0_DR3_MARK, DU0_DR2_MARK,
+	DU0_DG7_MARK, DU0_DG6_MARK, DU0_DG5_MARK, DU0_DG4_MARK,
+	DU0_DG3_MARK, DU0_DG2_MARK,
+	DU0_DB7_MARK, DU0_DB6_MARK, DU0_DB5_MARK, DU0_DB4_MARK,
+	DU0_DB3_MARK, DU0_DB2_MARK,
+};
+static const unsigned int du0_rgb888_pins[] = {
+	/* R[7:0], G[7:0], B[7:0] */
+	RCAR_GP_PIN(2, 7),  RCAR_GP_PIN(2, 6),  RCAR_GP_PIN(2, 5),
+	RCAR_GP_PIN(2, 4),  RCAR_GP_PIN(2, 3),  RCAR_GP_PIN(2, 2),
+	RCAR_GP_PIN(2, 1),  RCAR_GP_PIN(2, 0),
+	RCAR_GP_PIN(2, 15), RCAR_GP_PIN(2, 14), RCAR_GP_PIN(2, 13),
+	RCAR_GP_PIN(2, 12), RCAR_GP_PIN(2, 11), RCAR_GP_PIN(2, 10),
+	RCAR_GP_PIN(2, 9),  RCAR_GP_PIN(2, 8),
+	RCAR_GP_PIN(2, 23), RCAR_GP_PIN(2, 22), RCAR_GP_PIN(2, 21),
+	RCAR_GP_PIN(2, 20), RCAR_GP_PIN(2, 19), RCAR_GP_PIN(2, 18),
+	RCAR_GP_PIN(2, 17), RCAR_GP_PIN(2, 16),
+};
+static const unsigned int du0_rgb888_mux[] = {
+	DU0_DR7_MARK, DU0_DR6_MARK, DU0_DR5_MARK, DU0_DR4_MARK,
+	DU0_DR3_MARK, DU0_DR2_MARK, DU0_DR1_MARK, DU0_DR0_MARK,
+	DU0_DG7_MARK, DU0_DG6_MARK, DU0_DG5_MARK, DU0_DG4_MARK,
+	DU0_DG3_MARK, DU0_DG2_MARK, DU0_DG1_MARK, DU0_DG0_MARK,
+	DU0_DB7_MARK, DU0_DB6_MARK, DU0_DB5_MARK, DU0_DB4_MARK,
+	DU0_DB3_MARK, DU0_DB2_MARK, DU0_DB1_MARK, DU0_DB0_MARK,
+};
+static const unsigned int du0_clk0_out_pins[] = {
+	/* DOTCLKOUT0 */
+	RCAR_GP_PIN(2, 25),
+};
+static const unsigned int du0_clk0_out_mux[] = {
+	DU0_DOTCLKOUT0_MARK
+};
+static const unsigned int du0_clk1_out_pins[] = {
+	/* DOTCLKOUT1 */
+	RCAR_GP_PIN(2, 26),
+};
+static const unsigned int du0_clk1_out_mux[] = {
+	DU0_DOTCLKOUT1_MARK
+};
+static const unsigned int du0_clk_in_pins[] = {
+	/* CLKIN */
+	RCAR_GP_PIN(2, 24),
+};
+static const unsigned int du0_clk_in_mux[] = {
+	DU0_DOTCLKIN_MARK
+};
+static const unsigned int du0_sync_pins[] = {
+	/* EXVSYNC/VSYNC, EXHSYNC/HSYNC */
+	RCAR_GP_PIN(2, 28), RCAR_GP_PIN(2, 27),
+};
+static const unsigned int du0_sync_mux[] = {
+	DU0_EXVSYNC_DU0_VSYNC_MARK, DU0_EXHSYNC_DU0_HSYNC_MARK
+};
+static const unsigned int du0_oddf_pins[] = {
+	/* EXODDF/ODDF/DISP/CDE */
+	RCAR_GP_PIN(2, 29),
+};
+static const unsigned int du0_oddf_mux[] = {
+	DU0_EXODDF_DU0_ODDF_DISP_CDE_MARK,
+};
+static const unsigned int du0_cde_pins[] = {
+	/* CDE */
+	RCAR_GP_PIN(2, 31),
+};
+static const unsigned int du0_cde_mux[] = {
+	DU0_CDE_MARK,
+};
+static const unsigned int du0_disp_pins[] = {
+	/* DISP */
+	RCAR_GP_PIN(2, 30),
+};
+static const unsigned int du0_disp_mux[] = {
+	DU0_DISP_MARK
+};
+static const unsigned int du1_rgb666_pins[] = {
+	/* R[7:2], G[7:2], B[7:2] */
+	RCAR_GP_PIN(4, 7),  RCAR_GP_PIN(4, 6),  RCAR_GP_PIN(4, 5),
+	RCAR_GP_PIN(4, 4),  RCAR_GP_PIN(4, 3),  RCAR_GP_PIN(4, 2),
+	RCAR_GP_PIN(4, 15), RCAR_GP_PIN(4, 14), RCAR_GP_PIN(4, 13),
+	RCAR_GP_PIN(4, 12), RCAR_GP_PIN(4, 11), RCAR_GP_PIN(4, 10),
+	RCAR_GP_PIN(4, 23), RCAR_GP_PIN(4, 22), RCAR_GP_PIN(4, 21),
+	RCAR_GP_PIN(4, 20), RCAR_GP_PIN(4, 19), RCAR_GP_PIN(4, 18),
+};
+static const unsigned int du1_rgb666_mux[] = {
+	DU1_DR7_MARK, DU1_DR6_MARK, DU1_DR5_MARK, DU1_DR4_MARK,
+	DU1_DR3_MARK, DU1_DR2_MARK,
+	DU1_DG7_MARK, DU1_DG6_MARK, DU1_DG5_MARK, DU1_DG4_MARK,
+	DU1_DG3_MARK, DU1_DG2_MARK,
+	DU1_DB7_MARK, DU1_DB6_MARK, DU1_DB5_MARK, DU1_DB4_MARK,
+	DU1_DB3_MARK, DU1_DB2_MARK,
+};
+static const unsigned int du1_rgb888_pins[] = {
+	/* R[7:0], G[7:0], B[7:0] */
+	RCAR_GP_PIN(4, 7),  RCAR_GP_PIN(4, 6),  RCAR_GP_PIN(4, 5),
+	RCAR_GP_PIN(4, 4),  RCAR_GP_PIN(4, 3),  RCAR_GP_PIN(4, 2),
+	RCAR_GP_PIN(4, 1),  RCAR_GP_PIN(4, 0),
+	RCAR_GP_PIN(4, 15), RCAR_GP_PIN(4, 14), RCAR_GP_PIN(4, 13),
+	RCAR_GP_PIN(4, 12), RCAR_GP_PIN(4, 11), RCAR_GP_PIN(4, 10),
+	RCAR_GP_PIN(4, 9),  RCAR_GP_PIN(4, 8),
+	RCAR_GP_PIN(4, 23), RCAR_GP_PIN(4, 22), RCAR_GP_PIN(4, 21),
+	RCAR_GP_PIN(4, 20), RCAR_GP_PIN(4, 19), RCAR_GP_PIN(4, 18),
+	RCAR_GP_PIN(4, 17), RCAR_GP_PIN(4, 16),
+};
+static const unsigned int du1_rgb888_mux[] = {
+	DU1_DR7_MARK, DU1_DR6_MARK, DU1_DR5_MARK, DU1_DR4_MARK,
+	DU1_DR3_MARK, DU1_DR2_MARK, DU1_DR1_MARK, DU1_DR0_MARK,
+	DU1_DG7_MARK, DU1_DG6_MARK, DU1_DG5_MARK, DU1_DG4_MARK,
+	DU1_DG3_MARK, DU1_DG2_MARK, DU1_DG1_MARK, DU1_DG0_MARK,
+	DU1_DB7_MARK, DU1_DB6_MARK, DU1_DB5_MARK, DU1_DB4_MARK,
+	DU1_DB3_MARK, DU1_DB2_MARK, DU1_DB1_MARK, DU1_DB0_MARK,
+};
+static const unsigned int du1_clk0_out_pins[] = {
+	/* DOTCLKOUT0 */
+	RCAR_GP_PIN(4, 25),
+};
+static const unsigned int du1_clk0_out_mux[] = {
+	DU1_DOTCLKOUT0_MARK
+};
+static const unsigned int du1_clk1_out_pins[] = {
+	/* DOTCLKOUT1 */
+	RCAR_GP_PIN(4, 26),
+};
+static const unsigned int du1_clk1_out_mux[] = {
+	DU1_DOTCLKOUT1_MARK
+};
+static const unsigned int du1_clk_in_pins[] = {
+	/* DOTCLKIN */
+	RCAR_GP_PIN(4, 24),
+};
+static const unsigned int du1_clk_in_mux[] = {
+	DU1_DOTCLKIN_MARK
+};
+static const unsigned int du1_sync_pins[] = {
+	/* EXVSYNC/VSYNC, EXHSYNC/HSYNC */
+	RCAR_GP_PIN(4, 28), RCAR_GP_PIN(4, 27),
+};
+static const unsigned int du1_sync_mux[] = {
+	DU1_EXVSYNC_DU1_VSYNC_MARK, DU1_EXHSYNC_DU1_HSYNC_MARK
+};
+static const unsigned int du1_oddf_pins[] = {
+	/* EXODDF/ODDF/DISP/CDE */
+	RCAR_GP_PIN(4, 29),
+};
+static const unsigned int du1_oddf_mux[] = {
+	DU1_EXODDF_DU1_ODDF_DISP_CDE_MARK,
+};
+static const unsigned int du1_cde_pins[] = {
+	/* CDE */
+	RCAR_GP_PIN(4, 31),
+};
+static const unsigned int du1_cde_mux[] = {
+	DU1_CDE_MARK
+};
+static const unsigned int du1_disp_pins[] = {
+	/* DISP */
+	RCAR_GP_PIN(4, 30),
+};
+static const unsigned int du1_disp_mux[] = {
+	DU1_DISP_MARK
+};
 /* - ETH -------------------------------------------------------------------- */
 static const unsigned int eth_link_pins[] = {
 	/* LINK */
@@ -3364,6 +3537,24 @@ static const struct sh_pfc_pin_group pinmux_groups[] = {
 	SH_PFC_PIN_GROUP(avb_avtp_match),
 	SH_PFC_PIN_GROUP(avb_avtp_capture_b),
 	SH_PFC_PIN_GROUP(avb_avtp_match_b),
+	SH_PFC_PIN_GROUP(du0_rgb666),
+	SH_PFC_PIN_GROUP(du0_rgb888),
+	SH_PFC_PIN_GROUP(du0_clk0_out),
+	SH_PFC_PIN_GROUP(du0_clk1_out),
+	SH_PFC_PIN_GROUP(du0_clk_in),
+	SH_PFC_PIN_GROUP(du0_sync),
+	SH_PFC_PIN_GROUP(du0_oddf),
+	SH_PFC_PIN_GROUP(du0_cde),
+	SH_PFC_PIN_GROUP(du0_disp),
+	SH_PFC_PIN_GROUP(du1_rgb666),
+	SH_PFC_PIN_GROUP(du1_rgb888),
+	SH_PFC_PIN_GROUP(du1_clk0_out),
+	SH_PFC_PIN_GROUP(du1_clk1_out),
+	SH_PFC_PIN_GROUP(du1_clk_in),
+	SH_PFC_PIN_GROUP(du1_sync),
+	SH_PFC_PIN_GROUP(du1_oddf),
+	SH_PFC_PIN_GROUP(du1_cde),
+	SH_PFC_PIN_GROUP(du1_disp),
 	SH_PFC_PIN_GROUP(eth_link),
 	SH_PFC_PIN_GROUP(eth_magic),
 	SH_PFC_PIN_GROUP(eth_mdio),
@@ -3622,6 +3813,30 @@ static const char * const avb_groups[] = {
 	"avb_avtp_match_b",
 };
 
+static const char * const du0_groups[] = {
+	"du0_rgb666",
+	"du0_rgb888",
+	"du0_clk0_out",
+	"du0_clk1_out",
+	"du0_clk_in",
+	"du0_sync",
+	"du0_oddf",
+	"du0_cde",
+	"du0_disp",
+};
+
+static const char * const du1_groups[] = {
+	"du1_rgb666",
+	"du1_rgb888",
+	"du1_clk0_out",
+	"du1_clk1_out",
+	"du1_clk_in",
+	"du1_sync",
+	"du1_oddf",
+	"du1_cde",
+	"du1_disp",
+};
+
 static const char * const eth_groups[] = {
 	"eth_link",
 	"eth_magic",
@@ -3969,6 +4184,8 @@ static const char * const vin1_groups[] = {
 static const struct sh_pfc_function pinmux_functions[] = {
 	SH_PFC_FUNCTION(audio_clk),
 	SH_PFC_FUNCTION(avb),
+	SH_PFC_FUNCTION(du0),
+	SH_PFC_FUNCTION(du1),
 	SH_PFC_FUNCTION(eth),
 	SH_PFC_FUNCTION(hscif0),
 	SH_PFC_FUNCTION(hscif1),
diff --git a/drivers/pinctrl/sh-pfc/pfc-r8a7795.c b/drivers/pinctrl/sh-pfc/pfc-r8a7795.c
index 5979dabc02fa..44632b1a5c97 100644
--- a/drivers/pinctrl/sh-pfc/pfc-r8a7795.c
+++ b/drivers/pinctrl/sh-pfc/pfc-r8a7795.c
@@ -14,14 +14,14 @@
 #include "sh_pfc.h"
 
 #define CPU_ALL_PORT(fn, sfx)						\
-	PORT_GP_16(0, fn, sfx),						\
-	PORT_GP_28(1, fn, sfx),						\
-	PORT_GP_15(2, fn, sfx),						\
-	PORT_GP_16(3, fn, sfx),						\
-	PORT_GP_18(4, fn, sfx),						\
-	PORT_GP_26(5, fn, sfx),						\
-	PORT_GP_32(6, fn, sfx),						\
-	PORT_GP_4(7, fn, sfx)
+	PORT_GP_CFG_16(0, fn, sfx, SH_PFC_PIN_CFG_DRIVE_STRENGTH),	\
+	PORT_GP_CFG_28(1, fn, sfx, SH_PFC_PIN_CFG_DRIVE_STRENGTH),	\
+	PORT_GP_CFG_15(2, fn, sfx, SH_PFC_PIN_CFG_DRIVE_STRENGTH),	\
+	PORT_GP_CFG_16(3, fn, sfx, SH_PFC_PIN_CFG_DRIVE_STRENGTH),	\
+	PORT_GP_CFG_18(4, fn, sfx, SH_PFC_PIN_CFG_DRIVE_STRENGTH),	\
+	PORT_GP_CFG_26(5, fn, sfx, SH_PFC_PIN_CFG_DRIVE_STRENGTH),	\
+	PORT_GP_CFG_32(6, fn, sfx, SH_PFC_PIN_CFG_DRIVE_STRENGTH),	\
+	PORT_GP_CFG_4(7, fn, sfx, SH_PFC_PIN_CFG_DRIVE_STRENGTH)
 /*
  * F_() : just information
  * FM() : macro for FN_xxx / xxx_MARK
@@ -4564,6 +4564,207 @@ static const struct pinmux_cfg_reg pinmux_config_regs[] = {
 	{ },
 };
 
+static const struct pinmux_drive_reg pinmux_drive_regs[] = {
+	{ PINMUX_DRIVE_REG("DRVCTRL3", 0xe606030c) {
+		{ RCAR_GP_PIN(2,  9),  8, 3 },	/* AVB_MDC */
+		{ RCAR_GP_PIN(2, 10),  4, 3 },	/* AVB_MAGIC */
+		{ RCAR_GP_PIN(2, 11),  0, 3 },	/* AVB_PHY_INT */
+	} },
+	{ PINMUX_DRIVE_REG("DRVCTRL4", 0xe6060310) {
+		{ RCAR_GP_PIN(2, 12), 28, 3 },	/* AVB_LINK */
+		{ RCAR_GP_PIN(2, 13), 24, 3 },	/* AVB_AVTP_MATCH */
+		{ RCAR_GP_PIN(2, 14), 20, 3 },	/* AVB_AVTP_CAPTURE */
+		{ RCAR_GP_PIN(2,  0), 16, 3 },	/* IRQ0 */
+		{ RCAR_GP_PIN(2,  1), 12, 3 },	/* IRQ1 */
+		{ RCAR_GP_PIN(2,  2),  8, 3 },	/* IRQ2 */
+		{ RCAR_GP_PIN(2,  3),  4, 3 },	/* IRQ3 */
+		{ RCAR_GP_PIN(2,  4),  0, 3 },	/* IRQ4 */
+	} },
+	{ PINMUX_DRIVE_REG("DRVCTRL5", 0xe6060314) {
+		{ RCAR_GP_PIN(2,  5), 28, 3 },	/* IRQ5 */
+		{ RCAR_GP_PIN(2,  6), 24, 3 },	/* PWM0 */
+		{ RCAR_GP_PIN(2,  7), 20, 3 },	/* PWM1 */
+		{ RCAR_GP_PIN(2,  8), 16, 3 },	/* PWM2 */
+		{ RCAR_GP_PIN(1,  0), 12, 3 },	/* A0 */
+		{ RCAR_GP_PIN(1,  1),  8, 3 },	/* A1 */
+		{ RCAR_GP_PIN(1,  2),  4, 3 },	/* A2 */
+		{ RCAR_GP_PIN(1,  3),  0, 3 },	/* A3 */
+	} },
+	{ PINMUX_DRIVE_REG("DRVCTRL6", 0xe6060318) {
+		{ RCAR_GP_PIN(1,  4), 28, 3 },	/* A4 */
+		{ RCAR_GP_PIN(1,  5), 24, 3 },	/* A5 */
+		{ RCAR_GP_PIN(1,  6), 20, 3 },	/* A6 */
+		{ RCAR_GP_PIN(1,  7), 16, 3 },	/* A7 */
+		{ RCAR_GP_PIN(1,  8), 12, 3 },	/* A8 */
+		{ RCAR_GP_PIN(1,  9),  8, 3 },	/* A9 */
+		{ RCAR_GP_PIN(1, 10),  4, 3 },	/* A10 */
+		{ RCAR_GP_PIN(1, 11),  0, 3 },	/* A11 */
+	} },
+	{ PINMUX_DRIVE_REG("DRVCTRL7", 0xe606031c) {
+		{ RCAR_GP_PIN(1, 12), 28, 3 },	/* A12 */
+		{ RCAR_GP_PIN(1, 13), 24, 3 },	/* A13 */
+		{ RCAR_GP_PIN(1, 14), 20, 3 },	/* A14 */
+		{ RCAR_GP_PIN(1, 15), 16, 3 },	/* A15 */
+		{ RCAR_GP_PIN(1, 16), 12, 3 },	/* A16 */
+		{ RCAR_GP_PIN(1, 17),  8, 3 },	/* A17 */
+		{ RCAR_GP_PIN(1, 18),  4, 3 },	/* A18 */
+		{ RCAR_GP_PIN(1, 19),  0, 3 },	/* A19 */
+	} },
+	{ PINMUX_DRIVE_REG("DRVCTRL8", 0xe6060320) {
+		{ RCAR_GP_PIN(1, 20), 24, 3 },	/* CS0 */
+		{ RCAR_GP_PIN(1, 21), 20, 3 },	/* CS1_A26 */
+		{ RCAR_GP_PIN(1, 22), 16, 3 },	/* BS */
+		{ RCAR_GP_PIN(1, 23), 12, 3 },	/* RD */
+		{ RCAR_GP_PIN(1, 24),  8, 3 },	/* RD_WR */
+		{ RCAR_GP_PIN(1, 25),  4, 3 },	/* WE0 */
+		{ RCAR_GP_PIN(1, 26),  0, 3 },	/* WE1 */
+	} },
+	{ PINMUX_DRIVE_REG("DRVCTRL9", 0xe6060324) {
+		{ RCAR_GP_PIN(1, 27), 28, 3 },	/* EX_WAIT0 */
+		{ RCAR_GP_PIN(0,  0), 20, 3 },	/* D0 */
+		{ RCAR_GP_PIN(0,  1), 16, 3 },	/* D1 */
+		{ RCAR_GP_PIN(0,  2), 12, 3 },	/* D2 */
+		{ RCAR_GP_PIN(0,  3),  8, 3 },	/* D3 */
+		{ RCAR_GP_PIN(0,  4),  4, 3 },	/* D4 */
+		{ RCAR_GP_PIN(0,  5),  0, 3 },	/* D5 */
+	} },
+	{ PINMUX_DRIVE_REG("DRVCTRL10", 0xe6060328) {
+		{ RCAR_GP_PIN(0,  6), 28, 3 },	/* D6 */
+		{ RCAR_GP_PIN(0,  7), 24, 3 },	/* D7 */
+		{ RCAR_GP_PIN(0,  8), 20, 3 },	/* D8 */
+		{ RCAR_GP_PIN(0,  9), 16, 3 },	/* D9 */
+		{ RCAR_GP_PIN(0, 10), 12, 3 },	/* D10 */
+		{ RCAR_GP_PIN(0, 11),  8, 3 },	/* D11 */
+		{ RCAR_GP_PIN(0, 12),  4, 3 },	/* D12 */
+		{ RCAR_GP_PIN(0, 13),  0, 3 },	/* D13 */
+	} },
+	{ PINMUX_DRIVE_REG("DRVCTRL11", 0xe606032c) {
+		{ RCAR_GP_PIN(0, 14), 28, 3 },	/* D14 */
+		{ RCAR_GP_PIN(0, 15), 24, 3 },	/* D15 */
+		{ RCAR_GP_PIN(7,  0), 20, 3 },	/* AVS1 */
+		{ RCAR_GP_PIN(7,  1), 16, 3 },	/* AVS2 */
+		{ RCAR_GP_PIN(7,  2), 12, 3 },	/* HDMI0_CEC */
+		{ RCAR_GP_PIN(7,  3),  8, 3 },	/* HDMI1_CEC */
+	} },
+	{ PINMUX_DRIVE_REG("DRVCTRL13", 0xe6060334) {
+		{ RCAR_GP_PIN(3,  0), 20, 3 },	/* SD0_CLK */
+		{ RCAR_GP_PIN(3,  1), 16, 3 },	/* SD0_CMD */
+		{ RCAR_GP_PIN(3,  2), 12, 3 },	/* SD0_DAT0 */
+		{ RCAR_GP_PIN(3,  3),  8, 3 },	/* SD0_DAT1 */
+		{ RCAR_GP_PIN(3,  4),  4, 3 },	/* SD0_DAT2 */
+		{ RCAR_GP_PIN(3,  5),  0, 3 },	/* SD0_DAT3 */
+	} },
+	{ PINMUX_DRIVE_REG("DRVCTRL14", 0xe6060338) {
+		{ RCAR_GP_PIN(3,  6), 28, 3 },	/* SD1_CLK */
+		{ RCAR_GP_PIN(3,  7), 24, 3 },	/* SD1_CMD */
+		{ RCAR_GP_PIN(3,  8), 20, 3 },	/* SD1_DAT0 */
+		{ RCAR_GP_PIN(3,  9), 16, 3 },	/* SD1_DAT1 */
+		{ RCAR_GP_PIN(3, 10), 12, 3 },	/* SD1_DAT2 */
+		{ RCAR_GP_PIN(3, 11),  8, 3 },	/* SD1_DAT3 */
+		{ RCAR_GP_PIN(4,  0),  4, 3 },	/* SD2_CLK */
+		{ RCAR_GP_PIN(4,  1),  0, 3 },	/* SD2_CMD */
+	} },
+	{ PINMUX_DRIVE_REG("DRVCTRL15", 0xe606033c) {
+		{ RCAR_GP_PIN(4,  2), 28, 3 },	/* SD2_DAT0 */
+		{ RCAR_GP_PIN(4,  3), 24, 3 },	/* SD2_DAT1 */
+		{ RCAR_GP_PIN(4,  4), 20, 3 },	/* SD2_DAT2 */
+		{ RCAR_GP_PIN(4,  5), 16, 3 },	/* SD2_DAT3 */
+		{ RCAR_GP_PIN(4,  6), 12, 3 },	/* SD2_DS */
+		{ RCAR_GP_PIN(4,  7),  8, 3 },	/* SD3_CLK */
+		{ RCAR_GP_PIN(4,  8),  4, 3 },	/* SD3_CMD */
+		{ RCAR_GP_PIN(4,  9),  0, 3 },	/* SD3_DAT0 */
+	} },
+	{ PINMUX_DRIVE_REG("DRVCTRL16", 0xe6060340) {
+		{ RCAR_GP_PIN(4, 10), 28, 3 },	/* SD3_DAT1 */
+		{ RCAR_GP_PIN(4, 11), 24, 3 },	/* SD3_DAT2 */
+		{ RCAR_GP_PIN(4, 12), 20, 3 },	/* SD3_DAT3 */
+		{ RCAR_GP_PIN(4, 13), 16, 3 },	/* SD3_DAT4 */
+		{ RCAR_GP_PIN(4, 14), 12, 3 },	/* SD3_DAT5 */
+		{ RCAR_GP_PIN(4, 15),  8, 3 },	/* SD3_DAT6 */
+		{ RCAR_GP_PIN(4, 16),  4, 3 },	/* SD3_DAT7 */
+		{ RCAR_GP_PIN(4, 17),  0, 3 },	/* SD3_DS */
+	} },
+	{ PINMUX_DRIVE_REG("DRVCTRL17", 0xe6060344) {
+		{ RCAR_GP_PIN(3, 12), 28, 3 },	/* SD0_CD */
+		{ RCAR_GP_PIN(3, 13), 24, 3 },	/* SD0_WP */
+		{ RCAR_GP_PIN(3, 14), 20, 3 },	/* SD1_CD */
+		{ RCAR_GP_PIN(3, 15), 16, 3 },	/* SD1_WP */
+		{ RCAR_GP_PIN(5,  0), 12, 3 },	/* SCK0 */
+		{ RCAR_GP_PIN(5,  1),  8, 3 },	/* RX0 */
+		{ RCAR_GP_PIN(5,  2),  4, 3 },	/* TX0 */
+		{ RCAR_GP_PIN(5,  3),  0, 3 },	/* CTS0 */
+	} },
+	{ PINMUX_DRIVE_REG("DRVCTRL18", 0xe6060348) {
+		{ RCAR_GP_PIN(5,  4), 28, 3 },	/* RTS0_TANS */
+		{ RCAR_GP_PIN(5,  5), 24, 3 },	/* RX1 */
+		{ RCAR_GP_PIN(5,  6), 20, 3 },	/* TX1 */
+		{ RCAR_GP_PIN(5,  7), 16, 3 },	/* CTS1 */
+		{ RCAR_GP_PIN(5,  8), 12, 3 },	/* RTS1_TANS */
+		{ RCAR_GP_PIN(5,  9),  8, 3 },	/* SCK2 */
+		{ RCAR_GP_PIN(5, 10),  4, 3 },	/* TX2 */
+		{ RCAR_GP_PIN(5, 11),  0, 3 },	/* RX2 */
+	} },
+	{ PINMUX_DRIVE_REG("DRVCTRL19", 0xe606034c) {
+		{ RCAR_GP_PIN(5, 12), 28, 3 },	/* HSCK0 */
+		{ RCAR_GP_PIN(5, 13), 24, 3 },	/* HRX0 */
+		{ RCAR_GP_PIN(5, 14), 20, 3 },	/* HTX0 */
+		{ RCAR_GP_PIN(5, 15), 16, 3 },	/* HCTS0 */
+		{ RCAR_GP_PIN(5, 16), 12, 3 },	/* HRTS0 */
+		{ RCAR_GP_PIN(5, 17),  8, 3 },	/* MSIOF0_SCK */
+		{ RCAR_GP_PIN(5, 18),  4, 3 },	/* MSIOF0_SYNC */
+		{ RCAR_GP_PIN(5, 19),  0, 3 },	/* MSIOF0_SS1 */
+	} },
+	{ PINMUX_DRIVE_REG("DRVCTRL20", 0xe6060350) {
+		{ RCAR_GP_PIN(5, 20), 28, 3 },	/* MSIOF0_TXD */
+		{ RCAR_GP_PIN(5, 21), 24, 3 },	/* MSIOF0_SS2 */
+		{ RCAR_GP_PIN(5, 22), 20, 3 },	/* MSIOF0_RXD */
+		{ RCAR_GP_PIN(5, 23), 16, 3 },	/* MLB_CLK */
+		{ RCAR_GP_PIN(5, 24), 12, 3 },	/* MLB_SIG */
+		{ RCAR_GP_PIN(5, 25),  8, 3 },	/* MLB_DAT */
+		{ RCAR_GP_PIN(6,  0),  0, 3 },	/* SSI_SCK01239 */
+	} },
+	{ PINMUX_DRIVE_REG("DRVCTRL21", 0xe6060354) {
+		{ RCAR_GP_PIN(6,  1), 28, 3 },	/* SSI_WS01239 */
+		{ RCAR_GP_PIN(6,  2), 24, 3 },	/* SSI_SDATA0 */
+		{ RCAR_GP_PIN(6,  3), 20, 3 },	/* SSI_SDATA1 */
+		{ RCAR_GP_PIN(6,  4), 16, 3 },	/* SSI_SDATA2 */
+		{ RCAR_GP_PIN(6,  5), 12, 3 },	/* SSI_SCK34 */
+		{ RCAR_GP_PIN(6,  6),  8, 3 },	/* SSI_WS34 */
+		{ RCAR_GP_PIN(6,  7),  4, 3 },	/* SSI_SDATA3 */
+		{ RCAR_GP_PIN(6,  8),  0, 3 },	/* SSI_SCK4 */
+	} },
+	{ PINMUX_DRIVE_REG("DRVCTRL22", 0xe6060358) {
+		{ RCAR_GP_PIN(6,  9), 28, 3 },	/* SSI_WS4 */
+		{ RCAR_GP_PIN(6, 10), 24, 3 },	/* SSI_SDATA4 */
+		{ RCAR_GP_PIN(6, 11), 20, 3 },	/* SSI_SCK5 */
+		{ RCAR_GP_PIN(6, 12), 16, 3 },	/* SSI_WS5 */
+		{ RCAR_GP_PIN(6, 13), 12, 3 },	/* SSI_SDATA5 */
+		{ RCAR_GP_PIN(6, 14),  8, 3 },	/* SSI_SCK6 */
+		{ RCAR_GP_PIN(6, 15),  4, 3 },	/* SSI_WS6 */
+		{ RCAR_GP_PIN(6, 16),  0, 3 },	/* SSI_SDATA6 */
+	} },
+	{ PINMUX_DRIVE_REG("DRVCTRL23", 0xe606035c) {
+		{ RCAR_GP_PIN(6, 17), 28, 3 },	/* SSI_SCK78 */
+		{ RCAR_GP_PIN(6, 18), 24, 3 },	/* SSI_WS78 */
+		{ RCAR_GP_PIN(6, 19), 20, 3 },	/* SSI_SDATA7 */
+		{ RCAR_GP_PIN(6, 20), 16, 3 },	/* SSI_SDATA8 */
+		{ RCAR_GP_PIN(6, 21), 12, 3 },	/* SSI_SDATA9 */
+		{ RCAR_GP_PIN(6, 22),  8, 3 },	/* AUDIO_CLKA */
+		{ RCAR_GP_PIN(6, 23),  4, 3 },	/* AUDIO_CLKB */
+		{ RCAR_GP_PIN(6, 24),  0, 3 },	/* USB0_PWEN */
+	} },
+	{ PINMUX_DRIVE_REG("DRVCTRL24", 0xe6060360) {
+		{ RCAR_GP_PIN(6, 25), 28, 3 },	/* USB0_OVC */
+		{ RCAR_GP_PIN(6, 26), 24, 3 },	/* USB1_PWEN */
+		{ RCAR_GP_PIN(6, 27), 20, 3 },	/* USB1_OVC */
+		{ RCAR_GP_PIN(6, 28), 16, 3 },	/* USB30_PWEN */
+		{ RCAR_GP_PIN(6, 29), 12, 3 },	/* USB30_OVC */
+		{ RCAR_GP_PIN(6, 30),  8, 3 },	/* USB31_PWEN */
+		{ RCAR_GP_PIN(6, 31),  4, 3 },	/* USB31_OVC */
+	} },
+	{ },
+};
+
 const struct sh_pfc_soc_info r8a7795_pinmux_info = {
 	.name = "r8a77950_pfc",
 	.unlock_reg = 0xe6060000, /* PMMR */
@@ -4578,6 +4779,7 @@ const struct sh_pfc_soc_info r8a7795_pinmux_info = {
 	.nr_functions = ARRAY_SIZE(pinmux_functions),
 
 	.cfg_regs = pinmux_config_regs,
+	.drive_regs = pinmux_drive_regs,
 
 	.pinmux_data = pinmux_data,
 	.pinmux_data_size = ARRAY_SIZE(pinmux_data),
diff --git a/drivers/pinctrl/sh-pfc/pinctrl.c b/drivers/pinctrl/sh-pfc/pinctrl.c
index 87b0a599afaf..fdb445d68b9a 100644
--- a/drivers/pinctrl/sh-pfc/pinctrl.c
+++ b/drivers/pinctrl/sh-pfc/pinctrl.c
@@ -476,6 +476,91 @@ static const struct pinmux_ops sh_pfc_pinmux_ops = {
 	.gpio_set_direction	= sh_pfc_gpio_set_direction,
 };
 
+static u32 sh_pfc_pinconf_find_drive_strength_reg(struct sh_pfc *pfc,
+		unsigned int pin, unsigned int *offset, unsigned int *size)
+{
+	const struct pinmux_drive_reg_field *field;
+	const struct pinmux_drive_reg *reg;
+	unsigned int i;
+
+	for (reg = pfc->info->drive_regs; reg->reg; ++reg) {
+		for (i = 0; i < ARRAY_SIZE(reg->fields); ++i) {
+			field = &reg->fields[i];
+
+			if (field->size && field->pin == pin) {
+				*offset = field->offset;
+				*size = field->size;
+
+				return reg->reg;
+			}
+		}
+	}
+
+	return 0;
+}
+
+static int sh_pfc_pinconf_get_drive_strength(struct sh_pfc *pfc,
+					     unsigned int pin)
+{
+	unsigned long flags;
+	unsigned int offset;
+	unsigned int size;
+	u32 reg;
+	u32 val;
+
+	reg = sh_pfc_pinconf_find_drive_strength_reg(pfc, pin, &offset, &size);
+	if (!reg)
+		return -EINVAL;
+
+	spin_lock_irqsave(&pfc->lock, flags);
+	val = sh_pfc_read_reg(pfc, reg, 32);
+	spin_unlock_irqrestore(&pfc->lock, flags);
+
+	val = (val >> offset) & GENMASK(size - 1, 0);
+
+	/* Convert the value to mA based on a full drive strength value of 24mA.
+	 * We can make the full value configurable later if needed.
+	 */
+	return (val + 1) * (size == 2 ? 6 : 3);
+}
+
+static int sh_pfc_pinconf_set_drive_strength(struct sh_pfc *pfc,
+					     unsigned int pin, u16 strength)
+{
+	unsigned long flags;
+	unsigned int offset;
+	unsigned int size;
+	unsigned int step;
+	u32 reg;
+	u32 val;
+
+	reg = sh_pfc_pinconf_find_drive_strength_reg(pfc, pin, &offset, &size);
+	if (!reg)
+		return -EINVAL;
+
+	step = size == 2 ? 6 : 3;
+
+	if (strength < step || strength > 24)
+		return -EINVAL;
+
+	/* Convert the value from mA based on a full drive strength value of
+	 * 24mA. We can make the full value configurable later if needed.
+	 */
+	strength = strength / step - 1;
+
+	spin_lock_irqsave(&pfc->lock, flags);
+
+	val = sh_pfc_read_reg(pfc, reg, 32);
+	val &= ~GENMASK(offset + size - 1, offset);
+	val |= strength << offset;
+
+	sh_pfc_write_reg(pfc, reg, 32, val);
+
+	spin_unlock_irqrestore(&pfc->lock, flags);
+
+	return 0;
+}
+
 /* Check whether the requested parameter is supported for a pin. */
 static bool sh_pfc_pinconf_validate(struct sh_pfc *pfc, unsigned int _pin,
 				    enum pin_config_param param)
@@ -493,6 +578,9 @@ static bool sh_pfc_pinconf_validate(struct sh_pfc *pfc, unsigned int _pin,
 	case PIN_CONFIG_BIAS_PULL_DOWN:
 		return pin->configs & SH_PFC_PIN_CFG_PULL_DOWN;
 
+	case PIN_CONFIG_DRIVE_STRENGTH:
+		return pin->configs & SH_PFC_PIN_CFG_DRIVE_STRENGTH;
+
 	case PIN_CONFIG_POWER_SOURCE:
 		return pin->configs & SH_PFC_PIN_CFG_IO_VOLTAGE;
 
@@ -532,6 +620,17 @@ static int sh_pfc_pinconf_get(struct pinctrl_dev *pctldev, unsigned _pin,
 		break;
 	}
 
+	case PIN_CONFIG_DRIVE_STRENGTH: {
+		int ret;
+
+		ret = sh_pfc_pinconf_get_drive_strength(pfc, _pin);
+		if (ret < 0)
+			return ret;
+
+		*config = ret;
+		break;
+	}
+
 	case PIN_CONFIG_POWER_SOURCE: {
 		int ret;
 
@@ -584,6 +683,18 @@ static int sh_pfc_pinconf_set(struct pinctrl_dev *pctldev, unsigned _pin,
 
 			break;
 
+		case PIN_CONFIG_DRIVE_STRENGTH: {
+			unsigned int arg =
+				pinconf_to_config_argument(configs[i]);
+			int ret;
+
+			ret = sh_pfc_pinconf_set_drive_strength(pfc, _pin, arg);
+			if (ret < 0)
+				return ret;
+
+			break;
+		}
+
 		case PIN_CONFIG_POWER_SOURCE: {
 			unsigned int arg =
 				pinconf_to_config_argument(configs[i]);
@@ -678,7 +789,6 @@ int sh_pfc_register_pinctrl(struct sh_pfc *pfc)
 		return -ENOMEM;
 
 	pmx->pfc = pfc;
-	pfc->pinctrl = pmx;
 
 	ret = sh_pfc_map_pins(pfc, pmx);
 	if (ret < 0)
@@ -692,19 +802,9 @@ int sh_pfc_register_pinctrl(struct sh_pfc *pfc)
 	pmx->pctl_desc.pins = pmx->pins;
 	pmx->pctl_desc.npins = pfc->info->nr_pins;
 
-	pmx->pctl = pinctrl_register(&pmx->pctl_desc, pfc->dev, pmx);
+	pmx->pctl = devm_pinctrl_register(pfc->dev, &pmx->pctl_desc, pmx);
 	if (IS_ERR(pmx->pctl))
 		return PTR_ERR(pmx->pctl);
 
 	return 0;
 }
-
-int sh_pfc_unregister_pinctrl(struct sh_pfc *pfc)
-{
-	struct sh_pfc_pinctrl *pmx = pfc->pinctrl;
-
-	pinctrl_unregister(pmx->pctl);
-
-	pfc->pinctrl = NULL;
-	return 0;
-}
diff --git a/drivers/pinctrl/sh-pfc/sh_pfc.h b/drivers/pinctrl/sh-pfc/sh_pfc.h
index a490834e2089..656ea32f776c 100644
--- a/drivers/pinctrl/sh-pfc/sh_pfc.h
+++ b/drivers/pinctrl/sh-pfc/sh_pfc.h
@@ -28,6 +28,7 @@ enum {
 #define SH_PFC_PIN_CFG_PULL_UP		(1 << 2)
 #define SH_PFC_PIN_CFG_PULL_DOWN	(1 << 3)
 #define SH_PFC_PIN_CFG_IO_VOLTAGE	(1 << 4)
+#define SH_PFC_PIN_CFG_DRIVE_STRENGTH	(1 << 5)
 #define SH_PFC_PIN_CFG_NO_GPIO		(1 << 31)
 
 struct sh_pfc_pin {
@@ -131,6 +132,21 @@ struct pinmux_cfg_reg {
 		{ var_fw0, var_fwn, 0 }, \
 	.enum_ids = (const u16 [])
 
+struct pinmux_drive_reg_field {
+	u16 pin;
+	u8 offset;
+	u8 size;
+};
+
+struct pinmux_drive_reg {
+	u32 reg;
+	const struct pinmux_drive_reg_field fields[8];
+};
+
+#define PINMUX_DRIVE_REG(name, r) \
+	.reg = r, \
+	.fields =
+
 struct pinmux_data_reg {
 	u32 reg;
 	u8 reg_width;
@@ -199,6 +215,7 @@ struct sh_pfc_soc_info {
 #endif
 
 	const struct pinmux_cfg_reg *cfg_regs;
+	const struct pinmux_drive_reg *drive_regs;
 	const struct pinmux_data_reg *data_regs;
 
 	const u16 *pinmux_data;
@@ -276,7 +293,7 @@ struct sh_pfc_soc_info {
  *   - msel: Module selector
  */
 #define PINMUX_IPSR_MSEL(ipsr, fn, msel)				\
-	PINMUX_DATA(fn##_MARK, FN_##msel, FN_##ipsr, FN_##fn)
+	PINMUX_DATA(fn##_MARK, FN_##msel, FN_##fn, FN_##ipsr)
 
 /*
  * Describe a pinmux configuration for a single-function pin with GPIO