linux-kernel - [PATCH v4 3/3] arm64: dts: imx93: specify available 'ngpios' per GPIO port

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Message-Id: <20240117094453.100518-4-hector.palacios@digi.com>
Date: Wed, 17 Jan 2024 10:44:53 +0100
From: Hector Palacios <hector.palacios@...i.com>
To: linus.walleij@...aro.org,
	brgl@...ev.pl,
	robh+dt@...nel.org,
	krzysztof.kozlowski+dt@...aro.org
Cc: andy@...nel.org,
	conor+dt@...nel.org,
	shawnguo@...nel.org,
	s.hauer@...gutronix.de,
	kernel@...gutronix.de,
	festevam@...il.com,
	linux-imx@....com,
	stefan@...er.ch,
	linux-gpio@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	hector.palacios@...i.com
Subject: [PATCH v4 3/3] arm64: dts: imx93: specify available 'ngpios' per GPIO port

According to NXP HRM for i.MX93, the following GPIO pins are available:
- GPIO1: 16 pins (0..15)
- GPIO2: 30 pins (0..29)
- GPIO3: 32 pins (0..31)
- GPIO4: 30 pins (0..29)

Signed-off-by: Hector Palacios <hector.palacios@...i.com>
---
 arch/arm64/boot/dts/freescale/imx93.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx93.dtsi b/arch/arm64/boot/dts/freescale/imx93.dtsi
index 34c0540276d1..7eb2cab7c749 100644
--- a/arch/arm64/boot/dts/freescale/imx93.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx93.dtsi
@@ -970,6 +970,7 @@ gpio2: gpio@...10000 {
 				 <&clk IMX93_CLK_GPIO2_GATE>;
 			clock-names = "gpio", "port";
 			gpio-ranges = <&iomuxc 0 4 30>;
+			ngpios = <30>;
 		};
 
 		gpio3: gpio@...20000 {
@@ -986,6 +987,7 @@ gpio3: gpio@...20000 {
 			clock-names = "gpio", "port";
 			gpio-ranges = <&iomuxc 0 84 8>, <&iomuxc 8 66 18>,
 				      <&iomuxc 26 34 2>, <&iomuxc 28 0 4>;
+			ngpios = <32>;
 		};
 
 		gpio4: gpio@...30000 {
@@ -1001,6 +1003,7 @@ gpio4: gpio@...30000 {
 				 <&clk IMX93_CLK_GPIO4_GATE>;
 			clock-names = "gpio", "port";
 			gpio-ranges = <&iomuxc 0 38 28>, <&iomuxc 28 36 2>;
+			ngpios = <30>;
 		};
 
 		gpio1: gpio@...00000 {
@@ -1016,6 +1019,7 @@ gpio1: gpio@...00000 {
 				 <&clk IMX93_CLK_GPIO1_GATE>;
 			clock-names = "gpio", "port";
 			gpio-ranges = <&iomuxc 0 92 16>;
+			ngpios = <16>;
 		};
 
 		ocotp: efuse@...10000 {