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path: root/meta-agl-refhw-gen3/recipes-kernel/linux/files/0001-Create-r8a7795-USB-OVC-pin-groups.patch
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From 931e6487ca7642f94721a07c1e7da2152bda3baf Mon Sep 17 00:00:00 2001
From: Scott Murray <scott.murray@konsulko.com>
Date: Tue, 21 Sep 2021 15:31:36 -0400
Subject: [PATCH 1/4] Create r8a7795 USB OVC pin groups

Split the r8a7795 USB pin groups to create separate groups for the
OVC pins.  This is required for the AGL reference hardware boards,
which use some of the OVC pins in other pinmux modes.

Upstream-Status: pending

Signed-off-by: Scott Murray <scott.murray@konsulko.com>
Signed-off-by: Raquel Medina <raquel.medina@konsulko.com>
---
 .../boot/dts/renesas/r8a77950-salvator-x.dts  |  2 +-
 .../boot/dts/renesas/r8a77951-salvator-x.dts  |  2 +-
 .../boot/dts/renesas/r8a77951-salvator-xs.dts |  4 +-
 .../boot/dts/renesas/salvator-common.dtsi     |  6 +-
 arch/arm64/boot/dts/renesas/ulcb-kf.dtsi      |  2 +-
 arch/arm64/boot/dts/renesas/ulcb.dtsi         |  2 +-
 drivers/pinctrl/renesas/pfc-r8a77950.c        | 75 +++++++++++++++----
 drivers/pinctrl/renesas/pfc-r8a77951.c        | 75 +++++++++++++++----
 8 files changed, 129 insertions(+), 39 deletions(-)

diff --git a/arch/arm64/boot/dts/renesas/r8a77950-salvator-x.dts b/arch/arm64/boot/dts/renesas/r8a77950-salvator-x.dts
index 1a1f2324dd6e..776082563a30 100644
--- a/arch/arm64/boot/dts/renesas/r8a77950-salvator-x.dts
+++ b/arch/arm64/boot/dts/renesas/r8a77950-salvator-x.dts
@@ -143,7 +143,7 @@ &ohci2 {
 
 &pfc {
 	usb2_pins: usb2 {
-		groups = "usb2";
+		groups = "usb2", "usb2_ovc";
 		function = "usb2";
 	};
 };
diff --git a/arch/arm64/boot/dts/renesas/r8a77951-salvator-x.dts b/arch/arm64/boot/dts/renesas/r8a77951-salvator-x.dts
index ade33b2ee741..466b8b4f4fef 100644
--- a/arch/arm64/boot/dts/renesas/r8a77951-salvator-x.dts
+++ b/arch/arm64/boot/dts/renesas/r8a77951-salvator-x.dts
@@ -143,7 +143,7 @@ &ohci2 {
 
 &pfc {
 	usb2_pins: usb2 {
-		groups = "usb2";
+		groups = "usb2", "usb2_ovc";
 		function = "usb2";
 	};
 };
diff --git a/arch/arm64/boot/dts/renesas/r8a77951-salvator-xs.dts b/arch/arm64/boot/dts/renesas/r8a77951-salvator-xs.dts
index aa1ff538a4b6..fb1f286e2cd2 100644
--- a/arch/arm64/boot/dts/renesas/r8a77951-salvator-xs.dts
+++ b/arch/arm64/boot/dts/renesas/r8a77951-salvator-xs.dts
@@ -167,7 +167,7 @@ pcie-sata-switch-hog {
 
 &pfc {
 	usb2_pins: usb2 {
-		groups = "usb2";
+		groups = "usb2", "usb2_ovc";
 		function = "usb2";
 	};
 
@@ -184,7 +184,7 @@ usb2_pins: usb2 {
 	 *	- Connect GP6_{04,21} to ADV7842.
 	 */
 	usb2_ch3_pins: usb2_ch3 {
-		groups = "usb2_ch3";
+		groups = "usb2_ch3", "usb2_ch3_ovc";
 		function = "usb2_ch3";
 	};
 };
diff --git a/arch/arm64/boot/dts/renesas/salvator-common.dtsi b/arch/arm64/boot/dts/renesas/salvator-common.dtsi
index 3cc16111ede3..f26902f8ae9a 100644
--- a/arch/arm64/boot/dts/renesas/salvator-common.dtsi
+++ b/arch/arm64/boot/dts/renesas/salvator-common.dtsi
@@ -773,13 +773,13 @@ sound_clk_pins: sound_clk {
 	};
 
 	usb0_pins: usb0 {
-		groups = "usb0";
+		groups = "usb0", "usb0_ovc";
 		function = "usb0";
 	};
 
 	usb1_pins: usb1 {
 		mux {
-			groups = "usb1";
+			groups = "usb1", "usb1_ovc";
 			function = "usb1";
 		};
 
@@ -795,7 +795,7 @@ pwen {
 	};
 
 	usb30_pins: usb30 {
-		groups = "usb30";
+		groups = "usb30", "usb30_ovc";
 		function = "usb30";
 	};
 };
diff --git a/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi b/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi
index 18867a494f85..6a74f21948da 100644
--- a/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi
+++ b/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi
@@ -1008,7 +1008,7 @@ sound_pcm_pins: sound-pcm {
 	};
 
 	usb0_pins: usb0 {
-		groups = "usb0";
+		groups = "usb0", "usb0_ovc";
 		function = "usb0";
 	};
 
diff --git a/arch/arm64/boot/dts/renesas/ulcb.dtsi b/arch/arm64/boot/dts/renesas/ulcb.dtsi
index cf1ec42a662b..ad0f04d9ee67 100644
--- a/arch/arm64/boot/dts/renesas/ulcb.dtsi
+++ b/arch/arm64/boot/dts/renesas/ulcb.dtsi
@@ -376,7 +376,7 @@ sound_clk_pins: sound-clk {
 	};
 
 	usb1_pins: usb1 {
-		groups = "usb1";
+		groups = "usb1", "usb1_ovc";
 		function = "usb1";
 	};
 };
diff --git a/drivers/pinctrl/renesas/pfc-r8a77950.c b/drivers/pinctrl/renesas/pfc-r8a77950.c
index fd884a0a3206..6d899897b3d2 100644
--- a/drivers/pinctrl/renesas/pfc-r8a77950.c
+++ b/drivers/pinctrl/renesas/pfc-r8a77950.c
@@ -3841,44 +3841,79 @@ static const unsigned int tpu_to3_mux[] = {
 
 /* - USB0 ------------------------------------------------------------------- */
 static const unsigned int usb0_pins[] = {
-	/* PWEN, OVC */
-	RCAR_GP_PIN(6, 24), RCAR_GP_PIN(6, 25),
+	/* PWEN */
+	RCAR_GP_PIN(6, 24),
 };
 static const unsigned int usb0_mux[] = {
-	USB0_PWEN_MARK, USB0_OVC_MARK,
+	USB0_PWEN_MARK,
+};
+static const unsigned int usb0_ovc_pins[] = {
+	/* OVC */
+	RCAR_GP_PIN(6, 25),
+};
+static const unsigned int usb0_ovc_mux[] = {
+	USB0_OVC_MARK,
 };
 /* - USB1 ------------------------------------------------------------------- */
 static const unsigned int usb1_pins[] = {
-	/* PWEN, OVC */
-	RCAR_GP_PIN(6, 26), RCAR_GP_PIN(6, 27),
+	/* PWEN */
+	RCAR_GP_PIN(6, 26),
 };
 static const unsigned int usb1_mux[] = {
-	USB1_PWEN_MARK, USB1_OVC_MARK,
+	USB1_PWEN_MARK,
+};
+static const unsigned int usb1_ovc_pins[] = {
+	/* OVC */
+	RCAR_GP_PIN(6, 27),
+};
+static const unsigned int usb1_ovc_mux[] = {
+	USB1_OVC_MARK,
 };
 /* - USB2 ------------------------------------------------------------------- */
 static const unsigned int usb2_pins[] = {
-	/* PWEN, OVC */
-	RCAR_GP_PIN(6, 14), RCAR_GP_PIN(6, 15),
+	/* PWEN */
+	RCAR_GP_PIN(6, 14),
 };
 static const unsigned int usb2_mux[] = {
-	USB2_PWEN_MARK, USB2_OVC_MARK,
+	USB2_PWEN_MARK,
+};
+static const unsigned int usb2_ovc_pins[] = {
+	/* OVC */
+	RCAR_GP_PIN(6, 15),
+};
+static const unsigned int usb2_ovc_mux[] = {
+	USB2_OVC_MARK,
 };
 
 /* - USB30 ------------------------------------------------------------------ */
 static const unsigned int usb30_pins[] = {
-	/* PWEN, OVC */
-	RCAR_GP_PIN(6, 28), RCAR_GP_PIN(6, 29),
+	/* PWEN */
+	RCAR_GP_PIN(6, 28),
 };
 static const unsigned int usb30_mux[] = {
-	USB30_PWEN_MARK, USB30_OVC_MARK,
+	USB30_PWEN_MARK,
+};
+static const unsigned int usb30_ovc_pins[] = {
+	/* OVC */
+	RCAR_GP_PIN(6, 29),
+};
+static const unsigned int usb30_ovc_mux[] = {
+	USB30_OVC_MARK,
 };
 /* - USB31 ------------------------------------------------------------------ */
 static const unsigned int usb31_pins[] = {
-	/* PWEN, OVC */
-	RCAR_GP_PIN(6, 30), RCAR_GP_PIN(6, 31),
+	/* PWEN */
+	RCAR_GP_PIN(6, 30),
 };
 static const unsigned int usb31_mux[] = {
-	USB31_PWEN_MARK, USB31_OVC_MARK,
+	USB31_PWEN_MARK,
+};
+static const unsigned int usb31_ovc_pins[] = {
+	/* OVC */
+	RCAR_GP_PIN(6, 31),
+};
+static const unsigned int usb31_ovc_mux[] = {
+	USB31_OVC_MARK,
 };
 
 static const unsigned int vin4_data18_a_pins[] = {
@@ -4434,10 +4469,15 @@ static const struct sh_pfc_pin_group pinmux_groups[] = {
 	SH_PFC_PIN_GROUP(tpu_to2),
 	SH_PFC_PIN_GROUP(tpu_to3),
 	SH_PFC_PIN_GROUP(usb0),
+	SH_PFC_PIN_GROUP(usb0_ovc),
 	SH_PFC_PIN_GROUP(usb1),
+	SH_PFC_PIN_GROUP(usb1_ovc),
 	SH_PFC_PIN_GROUP(usb2),
+	SH_PFC_PIN_GROUP(usb2_ovc),
 	SH_PFC_PIN_GROUP(usb30),
+	SH_PFC_PIN_GROUP(usb30_ovc),
 	SH_PFC_PIN_GROUP(usb31),
+	SH_PFC_PIN_GROUP(usb31_ovc),
 	VIN_DATA_PIN_GROUP(vin4_data, 8, _a),
 	VIN_DATA_PIN_GROUP(vin4_data, 16, _a),
 	SH_PFC_PIN_GROUP(vin4_data18_a),
@@ -4936,22 +4976,27 @@ static const char * const tpu_groups[] = {
 
 static const char * const usb0_groups[] = {
 	"usb0",
+	"usb0_ovc",
 };
 
 static const char * const usb1_groups[] = {
 	"usb1",
+	"usb1_ovc",
 };
 
 static const char * const usb2_groups[] = {
 	"usb2",
+	"usb2_ovc",
 };
 
 static const char * const usb30_groups[] = {
 	"usb30",
+	"usb30_ovc",
 };
 
 static const char * const usb31_groups[] = {
 	"usb31",
+	"usb31_ovc",
 };
 
 static const char * const vin4_groups[] = {
diff --git a/drivers/pinctrl/renesas/pfc-r8a77951.c b/drivers/pinctrl/renesas/pfc-r8a77951.c
index 36436907e215..523a2d7e5e48 100644
--- a/drivers/pinctrl/renesas/pfc-r8a77951.c
+++ b/drivers/pinctrl/renesas/pfc-r8a77951.c
@@ -3985,44 +3985,79 @@ static const unsigned int tpu_to3_mux[] = {
 
 /* - USB0 ------------------------------------------------------------------- */
 static const unsigned int usb0_pins[] = {
-	/* PWEN, OVC */
-	RCAR_GP_PIN(6, 24), RCAR_GP_PIN(6, 25),
+	/* PWEN */
+	RCAR_GP_PIN(6, 24),
 };
 static const unsigned int usb0_mux[] = {
-	USB0_PWEN_MARK, USB0_OVC_MARK,
+	USB0_PWEN_MARK,
+};
+static const unsigned int usb0_ovc_pins[] = {
+	/* OVC */
+	RCAR_GP_PIN(6, 25),
+};
+static const unsigned int usb0_ovc_mux[] = {
+	USB0_OVC_MARK,
 };
 /* - USB1 ------------------------------------------------------------------- */
 static const unsigned int usb1_pins[] = {
-	/* PWEN, OVC */
-	RCAR_GP_PIN(6, 26), RCAR_GP_PIN(6, 27),
+	/* PWEN */
+	RCAR_GP_PIN(6, 26),
 };
 static const unsigned int usb1_mux[] = {
-	USB1_PWEN_MARK, USB1_OVC_MARK,
+	USB1_PWEN_MARK,
+};
+static const unsigned int usb1_ovc_pins[] = {
+	/* OVC */
+	RCAR_GP_PIN(6, 27),
+};
+static const unsigned int usb1_ovc_mux[] = {
+	USB1_OVC_MARK,
 };
 /* - USB2 ------------------------------------------------------------------- */
 static const unsigned int usb2_pins[] = {
-	/* PWEN, OVC */
-	RCAR_GP_PIN(6, 14), RCAR_GP_PIN(6, 15),
+	/* PWEN */
+	RCAR_GP_PIN(6, 14),
 };
 static const unsigned int usb2_mux[] = {
-	USB2_PWEN_MARK, USB2_OVC_MARK,
+	USB2_PWEN_MARK,
+};
+static const unsigned int usb2_ovc_pins[] = {
+	/* OVC */
+	RCAR_GP_PIN(6, 15),
+};
+static const unsigned int usb2_ovc_mux[] = {
+	USB2_OVC_MARK,
 };
 /* - USB2_CH3 --------------------------------------------------------------- */
 static const unsigned int usb2_ch3_pins[] = {
-	/* PWEN, OVC */
-	RCAR_GP_PIN(6, 30), RCAR_GP_PIN(6, 31),
+	/* PWEN */
+	RCAR_GP_PIN(6, 30),
 };
 static const unsigned int usb2_ch3_mux[] = {
-	USB2_CH3_PWEN_MARK, USB2_CH3_OVC_MARK,
+	USB2_CH3_PWEN_MARK,
+};
+static const unsigned int usb2_ch3_ovc_pins[] = {
+	/* OVC */
+	RCAR_GP_PIN(6, 31),
+};
+static const unsigned int usb2_ch3_ovc_mux[] = {
+	USB2_CH3_OVC_MARK,
 };
 
 /* - USB30 ------------------------------------------------------------------ */
 static const unsigned int usb30_pins[] = {
-	/* PWEN, OVC */
-	RCAR_GP_PIN(6, 28), RCAR_GP_PIN(6, 29),
+	/* PWEN */
+	RCAR_GP_PIN(6, 28),
 };
 static const unsigned int usb30_mux[] = {
-	USB30_PWEN_MARK, USB30_OVC_MARK,
+	USB30_PWEN_MARK,
+};
+static const unsigned int usb30_ovc_pins[] = {
+	/* OVC */
+	RCAR_GP_PIN(6, 29),
+};
+static const unsigned int usb30_ovc_mux[] = {
+	USB30_OVC_MARK,
 };
 
 /* - VIN4 ------------------------------------------------------------------- */
@@ -4545,10 +4580,15 @@ static const struct {
 		SH_PFC_PIN_GROUP(tpu_to2),
 		SH_PFC_PIN_GROUP(tpu_to3),
 		SH_PFC_PIN_GROUP(usb0),
+		SH_PFC_PIN_GROUP(usb0_ovc),
 		SH_PFC_PIN_GROUP(usb1),
+		SH_PFC_PIN_GROUP(usb1_ovc),
 		SH_PFC_PIN_GROUP(usb2),
+		SH_PFC_PIN_GROUP(usb2_ovc),
 		SH_PFC_PIN_GROUP(usb2_ch3),
+		SH_PFC_PIN_GROUP(usb2_ch3_ovc),
 		SH_PFC_PIN_GROUP(usb30),
+		SH_PFC_PIN_GROUP(usb30_ovc),
 		VIN_DATA_PIN_GROUP(vin4_data, 8, _a),
 		VIN_DATA_PIN_GROUP(vin4_data, 10, _a),
 		VIN_DATA_PIN_GROUP(vin4_data, 12, _a),
@@ -5103,22 +5143,27 @@ static const char * const tpu_groups[] = {
 
 static const char * const usb0_groups[] = {
 	"usb0",
+	"usb0_ovc",
 };
 
 static const char * const usb1_groups[] = {
 	"usb1",
+	"usb1_ovc",
 };
 
 static const char * const usb2_groups[] = {
 	"usb2",
+	"usb2_ovc",
 };
 
 static const char * const usb2_ch3_groups[] = {
 	"usb2_ch3",
+	"usb2_ch3_ovc",
 };
 
 static const char * const usb30_groups[] = {
 	"usb30",
+	"usb30_ovc",
 };
 
 static const char * const vin4_groups[] = {
-- 
2.31.1