linux-kernel - [PATCH] arm64: dts: visconti: Add PWM support for TMPV7708 SoC

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Date:   Tue,  8 Jun 2021 09:52:06 +0900
From:   Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@...hiba.co.jp>
To:     linux-arm-kernel@...ts.infradead.org
Cc:     devicetree@...r.kernel.org, punit1.agrawal@...hiba.co.jp,
        yuji2.ishikawa@...hiba.co.jp, linux-kernel@...r.kernel.org,
        Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@...hiba.co.jp>
Subject: [PATCH] arm64: dts: visconti: Add PWM support for TMPV7708 SoC

Add PWM node in TMPV7708's dtsi, and tmpv7708-rm-mbrc boards's dts.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@...hiba.co.jp>
---
 arch/arm64/boot/dts/toshiba/tmpv7708-rm-mbrc.dts | 8 ++++++++
 arch/arm64/boot/dts/toshiba/tmpv7708.dtsi        | 9 +++++++++
 arch/arm64/boot/dts/toshiba/tmpv7708_pins.dtsi   | 5 +++++
 3 files changed, 22 insertions(+)

diff --git a/arch/arm64/boot/dts/toshiba/tmpv7708-rm-mbrc.dts b/arch/arm64/boot/dts/toshiba/tmpv7708-rm-mbrc.dts
index bf0620afe117..29a4d9fc1e47 100644
--- a/arch/arm64/boot/dts/toshiba/tmpv7708-rm-mbrc.dts
+++ b/arch/arm64/boot/dts/toshiba/tmpv7708-rm-mbrc.dts
@@ -68,3 +68,11 @@ &wdt {
 &gpio {
 	status = "okay";
 };
+
+&pwm_mux {
+	groups = "pwm0_gpio16_grp", "pwm1_gpio17_grp", "pwm2_gpio18_grp", "pwm3_gpio19_grp";
+};
+
+&pwm {
+	status = "okay";
+};
diff --git a/arch/arm64/boot/dts/toshiba/tmpv7708.dtsi b/arch/arm64/boot/dts/toshiba/tmpv7708.dtsi
index 17934fd9a14c..4b4231ff43cf 100644
--- a/arch/arm64/boot/dts/toshiba/tmpv7708.dtsi
+++ b/arch/arm64/boot/dts/toshiba/tmpv7708.dtsi
@@ -432,6 +432,15 @@ wdt: wdt@...30000 {
 			reg = <0 0x28330000 0 0x1000>;
 			status = "disabled";
 		};
+
+		pwm: pwm@...c0000 {
+			compatible = "toshiba,visconti-pwm";
+			reg = <0 0x241c0000 0 0x1000>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&pwm_mux>;
+			#pwm-cells = <2>;
+			status = "disabled";
+		};
 	};
 };
 
diff --git a/arch/arm64/boot/dts/toshiba/tmpv7708_pins.dtsi b/arch/arm64/boot/dts/toshiba/tmpv7708_pins.dtsi
index 34de00015a7f..a480c6ba5f5d 100644
--- a/arch/arm64/boot/dts/toshiba/tmpv7708_pins.dtsi
+++ b/arch/arm64/boot/dts/toshiba/tmpv7708_pins.dtsi
@@ -90,4 +90,9 @@ i2c8_pins: i2c8-pins {
 		groups = "i2c8_grp";
 		bias-pull-up;
 	};
+
+	pwm_mux: pwm_mux {
+		function = "pwm";
+	};
+
 };
-- 
2.31.1