[PATCH] arm64: dts: imx8mp: Describe CSI2 GPIO expander on i.MX8MP DHCOM PDK3 board

[PATCH] arm64: dts: imx8mp: Describe CSI2 GPIO expander on i.MX8MP DHCOM PDK3 board

[Marek Vasut]

The production PDK3 carrier board rev.200 contains additional GPIO
expander to control power and reset signals for each CSI2 plug
separately. Describe this expander in the carrier board DT. The
label is used by sensor DTOs to reference the expander and its
signals.

Signed-off-by: Marek Vasut <marex@denx.de>
---
Cc: Conor Dooley <conor+dt@kernel.org>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
Cc: Marek Vasut <marex@denx.de>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: imx@lists.linux.dev
Cc: kernel@dh-electronics.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
---
 arch/arm64/boot/dts/freescale/imx8mp-dhcom-pdk3.dts | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-dhcom-pdk3.dts b/arch/arm64/boot/dts/freescale/imx8mp-dhcom-pdk3.dts
index b749e28e5ede5..ac7ec7533a3c8 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-dhcom-pdk3.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-dhcom-pdk3.dts
@@ -167,6 +167,16 @@ sgtl5000: codec@a {
 				VDDIO-supply = <&reg_vdd_3p3v_awo>;
 			};
 
+			csi2exp: gpio@24 {
+				compatible = "nxp,pca9570";
+				reg = <0x24>;
+				gpio-controller;
+				#gpio-cells = <2>;
+				gpio-line-names =
+					"CSI2_#RESET", "CSI2_#PWDN",
+					"CSI_#PWDN", "CSI_#RESET";
+			};
+
 			typec@3d {
 				compatible = "nxp,ptn5150";
 				reg = <0x3d>;
-- 
2.43.0


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Re: [PATCH] arm64: dts: imx8mp: Describe CSI2 GPIO expander on i.MX8MP DHCOM PDK3 board

[Shawn Guo]

On Tue, Mar 19, 2024 at 05:37:09AM +0100, Marek Vasut wrote:
> The production PDK3 carrier board rev.200 contains additional GPIO
> expander to control power and reset signals for each CSI2 plug
> separately. Describe this expander in the carrier board DT. The
> label is used by sensor DTOs to reference the expander and its
> signals.
> 
> Signed-off-by: Marek Vasut <marex@denx.de>

Applied, thanks!


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