linux-kernel - [PATCH v3 2/6] arm64: dts: imx8-ss-dma: add io-channel-cells to adc nodes

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Message-Id: <20230111110558.349460-3-marcel@ziswiler.com>
Date:   Wed, 11 Jan 2023 12:05:53 +0100
From:   Marcel Ziswiler <marcel@...wiler.com>
To:     devicetree@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, linux-imx@....com,
        linux-arm-kernel@...ts.infradead.org,
        Max Krummenacher <max.krummenacher@...adex.com>,
        Philippe Schenker <philippe.schenker@...adex.com>,
        Marcel Ziswiler <marcel.ziswiler@...adex.com>,
        Fabio Estevam <festevam@...il.com>,
        Frank Li <Frank.Li@....com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Peng Fan <peng.fan@....com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Shawn Guo <shawnguo@...nel.org>
Subject: [PATCH v3 2/6] arm64: dts: imx8-ss-dma: add io-channel-cells to adc nodes

From: Max Krummenacher <max.krummenacher@...adex.com>

This commit adds io-channel-cells property to the ADC nodes. This
property is required in order for an IIO consumer driver to work.
Especially required for Apalis iMX8 QM, as the touchscreen driver
uses ADC channels with the ADC driver based on IIO framework.

Signed-off-by: Philippe Schenker <philippe.schenker@...adex.com>
Signed-off-by: Max Krummenacher <max.krummenacher@...adex.com>
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@...adex.com>

---

Changes in v3:
- Fix subject as pointed out by Shawn. Thanks!

 arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi b/arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi
index a943a1e2797f..6e5ef8b69bf8 100644
--- a/arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi
@@ -270,6 +270,7 @@ i2c3: i2c@...30000 {
 
 	adc0: adc@...80000 {
 		compatible = "nxp,imx8qxp-adc";
+		#io-channel-cells = <1>;
 		reg = <0x5a880000 0x10000>;
 		interrupts = <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-parent = <&gic>;
@@ -284,6 +285,7 @@ adc0: adc@...80000 {
 
 	adc1: adc@...90000 {
 		compatible = "nxp,imx8qxp-adc";
+		#io-channel-cells = <1>;
 		reg = <0x5a890000 0x10000>;
 		interrupts = <GIC_SPI 241 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-parent = <&gic>;
-- 
2.35.1