linux-kernel - [PATCH 1/2] arm64: dts: ti: k3-am62p: Add gpio-reserved-ranges for main

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Message-ID: <20240809162828.1945821-2-j-mcarthur@ti.com>
Date: Fri, 9 Aug 2024 11:28:27 -0500
From: Jared McArthur <j-mcarthur@...com>
To: Conor Dooley <conor+dt@...nel.org>,
        Krzysztof Kozlowski
	<krzk+dt@...nel.org>,
        Rob Herring <robh@...nel.org>
CC: <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        Tero Kristo <kristo@...nel.org>, Vignesh Raghavendra <vigneshr@...com>,
        Nishanth Menon <nm@...com>, Jared
 McArthur <j-mcarthur@...com>
Subject: [PATCH 1/2] arm64: dts: ti: k3-am62p: Add gpio-reserved-ranges for main_gpio1

Commit 29075cc09f43 ("arm64: dts: ti: Introduce AM62P5 family of
SoCs") introduced the main_gpio1 node and included the ti,ngpio
property, but did not include the gpio-reserved-ranges property. As a
result, the user could try to access gpios that do not exist. Fix this
by introducing the gpio-reserved-ranges property.

The non-existent gpios are found in the am62p datasheet [1] in Table
5-24.

Depends on patch: dt-bindings: gpio: gpio-davinci: Add the
gpio-reserved-ranges property [2]

[1] https://www.ti.com/lit/ds/symlink/am62p.pdf
[2] https://lore.kernel.org/all/20240809154638.394091-2-j-mcarthur@ti.com/

Signed-off-by: Jared McArthur <j-mcarthur@...com>
---
 arch/arm64/boot/dts/ti/k3-am62p-main.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi
index 0ce9721b4176..420c77c8e9e5 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi
@@ -65,5 +65,6 @@ &main_gpio0 {
 &main_gpio1 {
 	gpio-ranges = <&main_pmx0 0 94 32>, <&main_pmx0 42 137 5>,
 			<&main_pmx0 47 143 3>, <&main_pmx0 50 149 2>;
+	gpio-reserved-ranges = <32 10>;
 	ti,ngpio = <52>;
 };
-- 
2.34.1