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60 lines
2.5 KiB
Diff
60 lines
2.5 KiB
Diff
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From 4aa602dc3f534cc5b1afcc587f1be8d713e389e5 Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.com>
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Date: Thu, 15 Dec 2022 16:13:07 +0000
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Subject: [PATCH] dt: Add camX_reg_gpio to CM4
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To make it easier for custom routing of camera control GPIOs,
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add the camX_reg_gpio parameter to CM4 DT as well.
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
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---
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arch/arm/boot/dts/bcm2711-rpi-cm4.dts | 7 +++++++
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arch/arm/boot/dts/overlays/README | 18 ++++++++++++------
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2 files changed, 19 insertions(+), 6 deletions(-)
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--- a/arch/arm/boot/dts/bcm2711-rpi-cm4.dts
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+++ b/arch/arm/boot/dts/bcm2711-rpi-cm4.dts
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@@ -574,5 +574,12 @@ cam0_reg: &cam1_reg {
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sd_poll_once = <&emmc2>, "non-removable?";
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spi_dma4 = <&spi0>, "dmas:0=", <&dma40>,
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<&spi0>, "dmas:8=", <&dma40>;
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+
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+ cam0_reg = <&cam0_reg>,"status";
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+ cam0_reg_gpio = <&cam0_reg>,"gpio:4",
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+ <&cam0_reg>,"gpio:0=", <&gpio>;
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+ cam1_reg = <&cam1_reg>,"status";
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+ cam1_reg_gpio = <&cam1_reg>,"gpio:4",
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+ <&cam1_reg>,"gpio:0=", <&gpio>;
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};
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};
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--- a/arch/arm/boot/dts/overlays/README
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+++ b/arch/arm/boot/dts/overlays/README
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@@ -144,15 +144,21 @@ Params:
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See /sys/kernel/debug/raspberrypi_axi_monitor
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for the results.
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- cam0_reg Enables CAM 0 regulator. CM1 & 3 only.
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+ cam0_reg Enables CAM 0 regulator.
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+ Only required on CM1 & 3.
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- cam0_reg_gpio Set GPIO for CAM 0 regulator. Default 31.
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- CM1 & 3 only.
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+ cam0_reg_gpio Set GPIO for CAM 0 regulator.
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+ Default 31 on CM1 & 3.
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+ Default of GPIO expander 5 on CM4, but override
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+ switches to normal GPIO.
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- cam1_reg Enables CAM 1 regulator. CM1 & 3 only.
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+ cam1_reg Enables CAM 1 regulator.
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+ Only required on CM1 & 3.
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- cam1_reg_gpio Set GPIO for CAM 1 regulator. Default 3.
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- CM1 & 3 only.
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+ cam1_reg_gpio Set GPIO for CAM 1 regulator.
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+ Default 3 on CM1 & 3.
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+ Default of GPIO expander 5 on CM4, but override
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+ switches to normal GPIO.
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eee Enable Energy Efficient Ethernet support for
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compatible devices (default "on"). See also
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