linux-kernel - [PATCH] arm64: dts: renesas: falcon-cpu: Use INTC

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Message-Id: <20220304114110.3939390-1-kieran.bingham+renesas@ideasonboard.com>
Date:   Fri,  4 Mar 2022 11:41:10 +0000
From:   Kieran Bingham <kieran.bingham+renesas@...asonboard.com>
To:     Geert Uytterhoeven <geert@...der.be>,
        linux-renesas-soc@...r.kernel.org, devicetree@...r.kernel.org
Cc:     Kieran Bingham <kieran.bingham+renesas@...asonboard.com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Magnus Damm <magnus.damm@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        linux-kernel@...r.kernel.org (open list)
Subject: [PATCH] arm64: dts: renesas: falcon-cpu: Use INTC_EX for SN65DSI86

The INTC block is a better choice for handling the interrupts on the V3U
as the INTC will always be powered, while the GPIO block may be
de-clocked if not in use. Further more, it may be likely to have a lower
power consumption as it does not need to drive the pins.

Switch the interrupt parent and interrupts definition from gpio1 to
intc_ex, allowing the PFC to configure the pin muxing accordingly.

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@...asonboard.com>
---
 arch/arm64/boot/dts/renesas/r8a779a0-falcon-cpu.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/renesas/r8a779a0-falcon-cpu.dtsi b/arch/arm64/boot/dts/renesas/r8a779a0-falcon-cpu.dtsi
index 6af3f4f4f268..b7254a0f08b6 100644
--- a/arch/arm64/boot/dts/renesas/r8a779a0-falcon-cpu.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a779a0-falcon-cpu.dtsi
@@ -198,8 +198,8 @@ bridge@2c {
 		clocks = <&sn65dsi86_refclk>;
 		clock-names = "refclk";
 
-		interrupt-parent = <&gpio1>;
-		interrupts = <24 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-parent = <&intc_ex>;
+		interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
 
 		vccio-supply = <&reg_1p8v>;
 		vpll-supply = <&reg_1p8v>;
-- 
2.32.0