linux-kernel - [PATCH 2/2] pwm: jz4740: Add support for X1000 SoC

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Date:   Wed,  9 Feb 2022 23:11:42 +0000
From:   Aidan MacDonald <aidanmacdonald.0x0@...il.com>
To:     paul@...pouillou.net, robh+dt@...nel.org
Cc:     linux-mips@...r.kernel.org, linux-pwm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] pwm: jz4740: Add support for X1000 SoC

The X1000 has the same TCU / PWM hardware as other Ingenic SoCs,
but it has only 5 channels.

Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@...il.com>
---
 arch/mips/boot/dts/ingenic/x1000.dtsi | 13 +++++++++++++
 drivers/pwm/pwm-jz4740.c              |  5 +++++
 2 files changed, 18 insertions(+)

diff --git a/arch/mips/boot/dts/ingenic/x1000.dtsi b/arch/mips/boot/dts/ingenic/x1000.dtsi
index 8bd27edef216..0dcf37527c8e 100644
--- a/arch/mips/boot/dts/ingenic/x1000.dtsi
+++ b/arch/mips/boot/dts/ingenic/x1000.dtsi
@@ -127,6 +127,19 @@ wdt: watchdog@0 {
 			clocks = <&tcu TCU_CLK_WDT>;
 			clock-names = "wdt";
 		};
+
+		pwm: pwm@40 {
+			compatible = "ingenic,x1000-pwm";
+			reg = <0x40 0x80>;
+
+			#pwm-cells = <3>;
+
+			clocks = <&tcu TCU_CLK_TIMER0>, <&tcu TCU_CLK_TIMER1>,
+				 <&tcu TCU_CLK_TIMER2>, <&tcu TCU_CLK_TIMER3>,
+				 <&tcu TCU_CLK_TIMER4>;
+			clock-names = "timer0", "timer1", "timer2",
+				      "timer3", "timer4";
+		};
 	};
 
 	rtc: rtc@...03000 {
diff --git a/drivers/pwm/pwm-jz4740.c b/drivers/pwm/pwm-jz4740.c
index 23dc1fb770e2..a5fdf97c0d2e 100644
--- a/drivers/pwm/pwm-jz4740.c
+++ b/drivers/pwm/pwm-jz4740.c
@@ -256,10 +256,15 @@ static const struct soc_info __maybe_unused jz4725b_soc_info = {
 	.num_pwms = 6,
 };
 
+static const struct soc_info __maybe_unused x1000_soc_info = {
+	.num_pwms = 5,
+};
+
 #ifdef CONFIG_OF
 static const struct of_device_id jz4740_pwm_dt_ids[] = {
 	{ .compatible = "ingenic,jz4740-pwm", .data = &jz4740_soc_info },
 	{ .compatible = "ingenic,jz4725b-pwm", .data = &jz4725b_soc_info },
+	{ .compatible = "ingenic,x1000-pwm", .data = &x1000_soc_info },
 	{},
 };
 MODULE_DEVICE_TABLE(of, jz4740_pwm_dt_ids);
-- 
2.34.1