linux-kernel - [PATCH] arm64: dts: ti: k3-am62-main: Add gpio-ranges properties

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Message-ID: <20231031160055.20200-1-rwahl@gmx.de>
Date:   Tue, 31 Oct 2023 17:00:55 +0100
From:   Ronald Wahl <rwahl@....de>
To:     Nishanth Menon <nm@...com>, Vignesh Raghavendra <vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Bryan Brattlof <bb@...com>
Cc:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        devicetree@...r.kernel.org, Ronald Wahl <ronald.wahl@...itan.com>
Subject: [PATCH] arm64: dts: ti: k3-am62-main: Add gpio-ranges properties

From: Ronald Wahl <ronald.wahl@...itan.com>

On the AM62 platform we have no single 1:1 relation regarding index of
gpio and pin controller. Actually there are some linear ranges with
small holes inbetween. These ranges can be represented with the
gpio-ranges device tree property. They have been extracted manually
from the AM62x datasheet (Table 6-1. Pin Attributes).

Signed-off-by: Ronald Wahl <ronald.wahl@...itan.com>
---
 arch/arm64/boot/dts/ti/k3-am62-main.dtsi | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
index 284b90c94da8..587d197e82c4 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
@@ -492,6 +492,9 @@ main_gpio_intr: interrupt-controller@...000 {
 	main_gpio0: gpio@...000 {
 		compatible = "ti,am64-gpio", "ti,keystone-gpio";
 		reg = <0x0 0x00600000 0x0 0x100>;
+		gpio-ranges = <&main_pmx0  0  0 32>,
+			      <&main_pmx0 32 33 38>,
+			      <&main_pmx0 70 72 22>;
 		gpio-controller;
 		#gpio-cells = <2>;
 		interrupt-parent = <&main_gpio_intr>;
@@ -510,6 +513,10 @@ main_gpio1: gpio@...000 {
 		compatible = "ti,am64-gpio", "ti,keystone-gpio";
 		reg = <0x0 0x00601000 0x0 0x100>;
 		gpio-controller;
+		gpio-ranges = <&main_pmx0  0  94 41>,
+			      <&main_pmx0 41 136  6>,
+			      <&main_pmx0 47 143  3>,
+			      <&main_pmx0 50 149  2>;
 		#gpio-cells = <2>;
 		interrupt-parent = <&main_gpio_intr>;
 		interrupts = <180>, <181>, <182>,
--
2.41.0