Merge tag 'renesas-arm-dt-for-v5.18-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/dt

Renesas ARM DT updates for v5.18 (take two)

  - Document the use of the renesas-soc IRC channel,
  - Watchdog support for the R-Car S4-8, RZ/N1D, and RZ/G2LC SoCs on the
    Spider, RZN1D-DB, and RZ/G2LC SMARC EVK development boards,
  - Miscellaneous fixes and improvements.

* tag 'renesas-arm-dt-for-v5.18-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
  ARM: dts: renesas: Align GPIO hog names with dtschema
  arm64: dts: renesas: Align GPIO hog names with dtschema
  arm64: dts: renesas: rzg2lc-smarc-som: Enable watchdog
  ARM: dts: r9a06g032-rzn1d400-db: Enable watchdog0 with a 60s timeout
  ARM: dts: r9a06g032: Add the watchdog nodes
  dt-bindings: clock: r9a06g032: Add the definition of the watchdog clock
  arm64: dts: renesas: spider-cpu: Enable watchdog timer
  arm64: dts: renesas: r8a779f0: Add RWDT node
  MAINTAINERS: Specify IRC channel for Renesas ARM64 port
  MAINTAINERS: Specify IRC channel for Renesas ARM32 port
  arm64: dts: renesas: ulcb-kf: fix wrong comment

Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnd Bergmann <[email protected]>

21 files changed, 71 insertions, 18 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index 5a64d6200a70..e643bab47eee 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2530,6 +2530,7 @@ M:	Magnus Damm <[email protected]>
 L:	[email protected]
 S:	Supported
 Q:	http://patchwork.kernel.org/project/linux-renesas-soc/list/
+C:	irc://irc.libera.chat/renesas-soc
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel.git next
 F:	Documentation/devicetree/bindings/arm/renesas.yaml
 F:	arch/arm64/boot/dts/renesas/
@@ -2643,6 +2644,7 @@ M:	Magnus Damm <[email protected]>
 L:	[email protected]
 S:	Supported
 Q:	http://patchwork.kernel.org/project/linux-renesas-soc/list/
+C:	irc://irc.libera.chat/renesas-soc
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel.git next
 F:	Documentation/devicetree/bindings/arm/renesas.yaml
 F:	arch/arm/boot/dts/emev2*
diff --git a/arch/arm/boot/dts/iwg20d-q7-common.dtsi b/arch/arm/boot/dts/iwg20d-q7-common.dtsi
index 849034a49a3f..03caea6fc6ff 100644
--- a/arch/arm/boot/dts/iwg20d-q7-common.dtsi
+++ b/arch/arm/boot/dts/iwg20d-q7-common.dtsi
@@ -181,7 +181,7 @@
 };
 
 &gpio2 {
-	touch-interrupt {
+	touch-interrupt-hog {
 		gpio-hog;
 		gpios = <12 GPIO_ACTIVE_LOW>;
 		input;
diff --git a/arch/arm/boot/dts/r8a7740-armadillo800eva.dts b/arch/arm/boot/dts/r8a7740-armadillo800eva.dts
index a01f3def1c69..0af63ddc4473 100644
--- a/arch/arm/boot/dts/r8a7740-armadillo800eva.dts
+++ b/arch/arm/boot/dts/r8a7740-armadillo800eva.dts
@@ -266,7 +266,7 @@
 		function = "lcd0";
 	};
 
-	lcd0_mux {
+	lcd0-mux-hog {
 		/* DBGMD/LCDC0/FSIA MUX */
 		gpio-hog;
 		gpios = <176 0>;
diff --git a/arch/arm/boot/dts/r8a7742-iwg21d-q7-dbcm-ca.dts b/arch/arm/boot/dts/r8a7742-iwg21d-q7-dbcm-ca.dts
index 3c8a7c8b1fdd..4e58c54cde17 100644
--- a/arch/arm/boot/dts/r8a7742-iwg21d-q7-dbcm-ca.dts
+++ b/arch/arm/boot/dts/r8a7742-iwg21d-q7-dbcm-ca.dts
@@ -91,10 +91,10 @@
 
 &gpio0 {
 	/* Disable hogging GP0_18 to output LOW */
-	/delete-node/ qspi_en;
+	/delete-node/ qspi-en-hog;
 
 	/* Hog GP0_18 to output HIGH to enable VIN2 */
-	vin2_en {
+	vin2-en-hog {
 		gpio-hog;
 		gpios = <18 GPIO_ACTIVE_HIGH>;
 		output-high;
diff --git a/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts b/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
index a5a79cdbcd0e..64102b664055 100644
--- a/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
+++ b/arch/arm/boot/dts/r8a7742-iwg21d-q7.dts
@@ -226,7 +226,7 @@
 };
 
 &gpio0 {
-	touch-interrupt {
+	touch-interrupt-hog {
 		gpio-hog;
 		gpios = <24 GPIO_ACTIVE_LOW>;
 		input;
@@ -234,7 +234,7 @@
 };
 
 &gpio1 {
-	can-trx-en-gpio{
+	can-trx-en-hog {
 		gpio-hog;
 		gpios = <28 GPIO_ACTIVE_HIGH>;
 		output-low;
diff --git a/arch/arm/boot/dts/r8a7742-iwg21m.dtsi b/arch/arm/boot/dts/r8a7742-iwg21m.dtsi
index 5621c9ed698f..b281a4d164b0 100644
--- a/arch/arm/boot/dts/r8a7742-iwg21m.dtsi
+++ b/arch/arm/boot/dts/r8a7742-iwg21m.dtsi
@@ -37,7 +37,7 @@
 
 &gpio0 {
 	/* GP0_18 set low to select QSPI. Doing so will disable VIN2 */
-	qspi_en {
+	qspi-en-hog {
 		gpio-hog;
 		gpios = <18 GPIO_ACTIVE_HIGH>;
 		output-low;
diff --git a/arch/arm/boot/dts/r8a77470-iwg23s-sbc.dts b/arch/arm/boot/dts/r8a77470-iwg23s-sbc.dts
index b024621c9981..644802285249 100644
--- a/arch/arm/boot/dts/r8a77470-iwg23s-sbc.dts
+++ b/arch/arm/boot/dts/r8a77470-iwg23s-sbc.dts
@@ -116,7 +116,7 @@
 };
 
 &gpio2 {
-	interrupt-fixup {
+	interrupt-fixup-hog {
 		gpio-hog;
 		gpios = <29 GPIO_ACTIVE_HIGH>;
 		line-name = "hdmi-hpd-int";
diff --git a/arch/arm/boot/dts/r9a06g032-rzn1d400-db.dts b/arch/arm/boot/dts/r9a06g032-rzn1d400-db.dts
index 4e57ae2688fc..3f8f3ce87e12 100644
--- a/arch/arm/boot/dts/r9a06g032-rzn1d400-db.dts
+++ b/arch/arm/boot/dts/r9a06g032-rzn1d400-db.dts
@@ -26,3 +26,8 @@
 &uart0 {
 	status = "okay";
 };
+
+&wdt0 {
+	timeout-sec = <60>;
+	status = "okay";
+};
diff --git a/arch/arm/boot/dts/r9a06g032.dtsi b/arch/arm/boot/dts/r9a06g032.dtsi
index db657224688a..636a6ab31c58 100644
--- a/arch/arm/boot/dts/r9a06g032.dtsi
+++ b/arch/arm/boot/dts/r9a06g032.dtsi
@@ -66,6 +66,22 @@
 		interrupt-parent = <&gic>;
 		ranges;
 
+		wdt0: watchdog@40008000 {
+			compatible = "renesas,r9a06g032-wdt", "renesas,rzn1-wdt";
+			reg = <0x40008000 0x1000>;
+			interrupts = <GIC_SPI 73 IRQ_TYPE_EDGE_RISING>;
+			clocks = <&sysctrl R9A06G032_CLK_WATCHDOG>;
+			status = "disabled";
+		};
+
+		wdt1: watchdog@40009000 {
+			compatible = "renesas,r9a06g032-wdt", "renesas,rzn1-wdt";
+			reg = <0x40009000 0x1000>;
+			interrupts = <GIC_SPI 74 IRQ_TYPE_EDGE_RISING>;
+			clocks = <&sysctrl R9A06G032_CLK_WATCHDOG>;
+			status = "disabled";
+		};
+
 		sysctrl: system-controller@4000c000 {
 			compatible = "renesas,r9a06g032-sysctrl";
 			reg = <0x4000c000 0x1000>;
diff --git a/arch/arm64/boot/dts/renesas/beacon-renesom-som.dtsi b/arch/arm64/boot/dts/renesas/beacon-renesom-som.dtsi
index 17d5c4501bbe..877d076ffcc9 100644
--- a/arch/arm64/boot/dts/renesas/beacon-renesom-som.dtsi
+++ b/arch/arm64/boot/dts/renesas/beacon-renesom-som.dtsi
@@ -77,7 +77,7 @@
 };
 
 &gpio6 {
-	usb_hub_reset {
+	usb-hub-reset-hog {
 		gpio-hog;
 		gpios = <10 GPIO_ACTIVE_HIGH>;
 		output-high;
diff --git a/arch/arm64/boot/dts/renesas/hihope-common.dtsi b/arch/arm64/boot/dts/renesas/hihope-common.dtsi
index 0c7e6f790590..935d06515aa6 100644
--- a/arch/arm64/boot/dts/renesas/hihope-common.dtsi
+++ b/arch/arm64/boot/dts/renesas/hihope-common.dtsi
@@ -140,7 +140,7 @@
 };
 
 &gpio6 {
-	usb1-reset {
+	usb1-reset-hog {
 		gpio-hog;
 		gpios = <10 GPIO_ACTIVE_LOW>;
 		output-low;
diff --git a/arch/arm64/boot/dts/renesas/hihope-rzg2-ex-lvds.dtsi b/arch/arm64/boot/dts/renesas/hihope-rzg2-ex-lvds.dtsi
index 40c5e8d6d841..d66d17e34694 100644
--- a/arch/arm64/boot/dts/renesas/hihope-rzg2-ex-lvds.dtsi
+++ b/arch/arm64/boot/dts/renesas/hihope-rzg2-ex-lvds.dtsi
@@ -20,7 +20,7 @@
 	 * When GP1_20 is LOW LVDS0 is connected to the LVDS connector
 	 * When GP1_20 is HIGH LVDS0 is connected to the LT8918L
 	 */
-	lvds-connector-en-gpio {
+	lvds-connector-en-hog {
 		gpio-hog;
 		gpios = <20 GPIO_ACTIVE_HIGH>;
 		output-low;
diff --git a/arch/arm64/boot/dts/renesas/r8a774c0-ek874-idk-2121wr.dts b/arch/arm64/boot/dts/renesas/r8a774c0-ek874-idk-2121wr.dts
index a7b27d09f6c2..c1812d1ef06a 100644
--- a/arch/arm64/boot/dts/renesas/r8a774c0-ek874-idk-2121wr.dts
+++ b/arch/arm64/boot/dts/renesas/r8a774c0-ek874-idk-2121wr.dts
@@ -68,7 +68,7 @@
 	 * When GP0_17 is low LVDS[01] are connected to the LVDS connector
 	 * When GP0_17 is high LVDS[01] are connected to the LT8918L
 	 */
-	lvds-connector-en-gpio{
+	lvds-connector-en-hog {
 		gpio-hog;
 		gpios = <17 GPIO_ACTIVE_HIGH>;
 		output-low;
diff --git a/arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi b/arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi
index 156586532c84..3a90932fe85c 100644
--- a/arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi
@@ -31,6 +31,11 @@
 	clock-frequency = <32768>;
 };
 
+&rwdt {
+	timeout-sec = <60>;
+	status = "okay";
+};
+
 &scif3 {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/renesas/r8a779f0.dtsi b/arch/arm64/boot/dts/renesas/r8a779f0.dtsi
index 5426532d10e2..0ac8c345558e 100644
--- a/arch/arm64/boot/dts/renesas/r8a779f0.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a779f0.dtsi
@@ -59,6 +59,16 @@
 		#size-cells = <2>;
 		ranges;
 
+		rwdt: watchdog@e6020000 {
+			compatible = "renesas,r8a779f0-wdt",
+				     "renesas,rcar-gen4-wdt";
+			reg = <0 0xe6020000 0 0x0c>;
+			clocks = <&cpg CPG_MOD 907>;
+			power-domains = <&sysc R8A779F0_PD_ALWAYS_ON>;
+			resets = <&cpg 907>;
+			status = "disabled";
+		};
+
 		cpg: clock-controller@e6150000 {
 			compatible = "renesas,r8a779f0-cpg-mssr";
 			reg = <0 0xe6150000 0 0x4000>;
diff --git a/arch/arm64/boot/dts/renesas/r9a07g054l2-smarc.dts b/arch/arm64/boot/dts/renesas/r9a07g054l2-smarc.dts
index 49d141db53f7..fc334b4c2aa4 100644
--- a/arch/arm64/boot/dts/renesas/r9a07g054l2-smarc.dts
+++ b/arch/arm64/boot/dts/renesas/r9a07g054l2-smarc.dts
@@ -18,8 +18,8 @@
 };
 
 &pinctrl {
-	/delete-node/ can0-stb;
-	/delete-node/ can1-stb;
+	/delete-node/ can0-stb-hog;
+	/delete-node/ can1-stb-hog;
 	/delete-node/ gpio-sd0-pwr-en-hog;
 	/delete-node/ sd0-dev-sel-hog;
 	/delete-node/ sd1-pwr-en-hog;
diff --git a/arch/arm64/boot/dts/renesas/rzg2l-smarc-pinfunction.dtsi b/arch/arm64/boot/dts/renesas/rzg2l-smarc-pinfunction.dtsi
index 2ef217445f72..9085d8c76ce1 100644
--- a/arch/arm64/boot/dts/renesas/rzg2l-smarc-pinfunction.dtsi
+++ b/arch/arm64/boot/dts/renesas/rzg2l-smarc-pinfunction.dtsi
@@ -18,7 +18,7 @@
 	};
 
 	/* SW7 should be at position 2->3 so that GPIO8_CAN0_STB line is activated */
-	can0-stb {
+	can0-stb-hog {
 		gpio-hog;
 		gpios = <RZG2L_GPIO(42, 2) GPIO_ACTIVE_HIGH>;
 		output-low;
@@ -31,7 +31,7 @@
 	};
 
 	/* SW8 should be at position 2->3 so that GPIO9_CAN1_STB line is activated */
-	can1-stb {
+	can1-stb-hog {
 		gpio-hog;
 		gpios = <RZG2L_GPIO(42, 3) GPIO_ACTIVE_HIGH>;
 		output-low;
diff --git a/arch/arm64/boot/dts/renesas/rzg2lc-smarc-pinfunction.dtsi b/arch/arm64/boot/dts/renesas/rzg2lc-smarc-pinfunction.dtsi
index bff56d696936..37ff2091582e 100644
--- a/arch/arm64/boot/dts/renesas/rzg2lc-smarc-pinfunction.dtsi
+++ b/arch/arm64/boot/dts/renesas/rzg2lc-smarc-pinfunction.dtsi
@@ -34,7 +34,7 @@
 
 #if SW_RSPI_CAN
 	/* SW8 should be at position 2->3 so that GPIO9_CAN1_STB line is activated */
-	can1-stb {
+	can1-stb-hog {
 		gpio-hog;
 		gpios = <RZG2L_GPIO(44, 3) GPIO_ACTIVE_HIGH>;
 		output-low;
diff --git a/arch/arm64/boot/dts/renesas/rzg2lc-smarc-som.dtsi b/arch/arm64/boot/dts/renesas/rzg2lc-smarc-som.dtsi
index 90cb7ec45751..88a7938017aa 100644
--- a/arch/arm64/boot/dts/renesas/rzg2lc-smarc-som.dtsi
+++ b/arch/arm64/boot/dts/renesas/rzg2lc-smarc-som.dtsi
@@ -206,3 +206,17 @@
 };
 #endif
 
+&wdt0 {
+	status = "okay";
+	timeout-sec = <60>;
+};
+
+&wdt1 {
+	status = "okay";
+	timeout-sec = <60>;
+};
+
+&wdt2 {
+	status = "okay";
+	timeout-sec = <60>;
+};
diff --git a/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi b/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi
index 889d117dadf5..ae532cd21708 100644
--- a/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi
+++ b/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi
@@ -414,7 +414,7 @@
 		     &sound_pcm_pins>;
 
 	ports {
-		/* rsnd_port0/1 are on salvator-common */
+		/* rsnd_port0/1 are defined in ulcb.dtsi */
 		rsnd_port2: port@2 {
 			reg = <2>;
 			rsnd_for_pcm3168a_play: endpoint {
diff --git a/include/dt-bindings/clock/r9a06g032-sysctrl.h b/include/dt-bindings/clock/r9a06g032-sysctrl.h
index 90c0f3dc1ba1..d9d7b8b4f426 100644
--- a/include/dt-bindings/clock/r9a06g032-sysctrl.h
+++ b/include/dt-bindings/clock/r9a06g032-sysctrl.h
@@ -74,6 +74,7 @@
 #define R9A06G032_CLK_DDRPHY_PCLK	81	/* AKA CLK_REF_SYNC_D4 */
 #define R9A06G032_CLK_FW		81	/* AKA CLK_REF_SYNC_D4 */
 #define R9A06G032_CLK_CRYPTO		81	/* AKA CLK_REF_SYNC_D4 */
+#define R9A06G032_CLK_WATCHDOG		82	/* AKA CLK_REF_SYNC_D8 */
 #define R9A06G032_CLK_A7MP		84	/* AKA DIV_CA7 */
 #define R9A06G032_HCLK_CAN0		85
 #define R9A06G032_HCLK_CAN1		86