linux-kernel - [PATCH 2/4] arm64: dts: rockchip: Remove hdmi's 2nd interrupt on rk3328

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Message-ID: <20241007105657.6203-4-didi.debian@cknow.org>
Date: Mon,  7 Oct 2024 12:28:17 +0200
From: Diederik de Haas <didi.debian@...ow.org>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Heiko Stuebner <heiko@...ech.de>
Cc: Diederik de Haas <didi.debian@...ow.org>,
	Dragan Simic <dsimic@...jaro.org>,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 2/4] arm64: dts: rockchip: Remove hdmi's 2nd interrupt on rk3328

The "synopsys,dw-hdmi.yaml" binding specifies that the interrupts
property of the hdmi node has 'maxItems: 1', so the hdmi node in
rk3328.dtsi having 2 is incorrect.

Paragraph 1.3 ("System Interrupt connection") of the RK3328 TRM v1.1
page 16 and 17 define the following hdmi related interrupts:
-  67 hdmi_intr
- 103 hdmi_intr_wakeup

The difference of 32 is due to a different base used in the TRM.

The RK3399 (which uses the same binding) has '23: hdmi_irq' and
'24: hdmi_wakeup_irq' according to its TRM (page 19).
The RK3568 (also same binding) has '76: hdmi_wakeup' and '77: hdmi'
according to page 17 of its TRM.
In both cases the non-wakeup IRQ was used, so use that too for rk3328.

Helped-by: Heiko Stuebner <heiko@...ech.de>
Signed-off-by: Diederik de Haas <didi.debian@...ow.org>
---
 arch/arm64/boot/dts/rockchip/rk3328.dtsi | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3328.dtsi b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
index b5cbe7cab10b..0597de415fe0 100644
--- a/arch/arm64/boot/dts/rockchip/rk3328.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
@@ -754,8 +754,7 @@ hdmi: hdmi@...c0000 {
 		compatible = "rockchip,rk3328-dw-hdmi";
 		reg = <0x0 0xff3c0000 0x0 0x20000>;
 		reg-io-width = <4>;
-		interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>,
-			     <GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
+		interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&cru PCLK_HDMI>,
 			 <&cru SCLK_HDMI_SFC>,
 			 <&cru SCLK_RTC32K>;
-- 
2.45.2