Thread (8 messages) 8 messages, 3 authors, 2020-07-02

RE: [PATCH 1/4] arm64: dts: exynos: Add PWM interrupts on Exynos7

From: "Alim Akhtar" <alim.akhtar@samsung.com>
Date: 2020-06-30 15:24:41
Also in: linux-devicetree, linux-samsung-soc, lkml

Hi Krzysztof,
-----Original Message-----
From: Krzysztof Kozlowski <krzk@kernel.org>
Sent: 30 June 2020 02:15
To: Rob Herring <robh+dt@kernel.org>; Kukjin Kim <kgene@kernel.org>;
Krzysztof Kozlowski [off-list ref]; devicetree@vger.kernel.org;
linux-arm-
quoted hunk ↗ jump to hunk
kernel@lists.infradead.org; linux-samsung-soc@vger.kernel.org; linux-
kernel@vger.kernel.org
Cc: Marek Szyprowski <m.szyprowski@samsung.com>; Bartlomiej Zolnierkiewicz
[off-list ref]; Sylwester Nawrocki [off-list ref];
Alim Akhtar [off-list ref]; Chanwoo Choi
[off-list ref]; Pankaj Dubey [off-list ref]
Subject: [PATCH 1/4] arm64: dts: exynos: Add PWM interrupts on Exynos7

Add required interrupts to PWM node on Exynos7.  This fixes DT schema
warning:

    pwm@136c0000: 'interrupts' is a required property

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

---

Not tested
---
 arch/arm64/boot/dts/exynos/exynos7.dtsi | 5 +++++
 1 file changed, 5 insertions(+)
diff --git a/arch/arm64/boot/dts/exynos/exynos7.dtsi
b/arch/arm64/boot/dts/exynos/exynos7.dtsi
index f590891efe25..523547b3d539 100644
--- a/arch/arm64/boot/dts/exynos/exynos7.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynos7.dtsi
@@ -581,6 +581,11 @@
 		pwm: pwm@136c0000 {
 			compatible = "samsung,exynos4210-pwm";
 			reg = <0x136c0000 0x100>;
+			interrupts = <GIC_SPI 444 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 445 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 446 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 447 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 448 IRQ_TYPE_LEVEL_HIGH>;
PWM IRQs are from 449 ~ 453 for PWM[0] ~ PWM[4] on this SoC.
444 ~ 447 are for HSI2C and 448 is for ADC.
Please see the exynos7.dtsi
Also drivers/pwm/pwm-samsung.c does not uses interrupt at all, still we need
interrupts property to be added here?
 			samsung,pwm-outputs = <0>, <1>, <2>, <3>;
 			#pwm-cells = <3>;
 			clocks = <&clock_peric0 PCLK_PWM>;
--
2.17.1


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