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49 lines
1.6 KiB
Diff
49 lines
1.6 KiB
Diff
From 3ad2851293ef51728c901a8a3aaead2cce0cd7fc Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.com>
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Date: Wed, 2 Nov 2022 09:54:39 +0000
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Subject: [PATCH] overlays: pisound: Make button pins owned by card
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The pisound overlay claims a number of GPIOs using a pinctrl node, but
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for some reason hangs this claim on the main gpio node. This obscures
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the ownership of the pins (as shown by gpioinfo and in the kernel logs)
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and isn't scalable - only one overlay can use the trick at a time.
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Change the overlay to make the pin ownership clear and avoid any future
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conflicts, removing a bogus claim on pins_spi0 at the same time.
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See: https://github.com/raspberrypi/linux/issues/5235
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Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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---
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arch/arm/boot/dts/overlays/pisound-overlay.dts | 6 +-----
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1 file changed, 1 insertion(+), 5 deletions(-)
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--- a/arch/arm/boot/dts/overlays/pisound-overlay.dts
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+++ b/arch/arm/boot/dts/overlays/pisound-overlay.dts
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@@ -55,8 +55,6 @@
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pisound_spi: pisound_spi@0{
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compatible = "blokaslabs,pisound-spi";
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reg = <0>;
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- pinctrl-names = "default";
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- pinctrl-0 = <&spi0_pins>;
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spi-max-frequency = <1000000>;
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};
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};
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@@ -80,6 +78,7 @@
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i2s-controller = <&i2s>;
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status = "okay";
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+ pinctrl-names = "default";
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pinctrl-0 = <&pisound_button_pins>;
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osr-gpios =
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@@ -100,9 +99,6 @@
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fragment@6 {
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target = <&gpio>;
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__overlay__ {
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- pinctrl-names = "default";
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- pinctrl-0 = <&pisound_button_pins>;
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-
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pisound_button_pins: pisound_button_pins {
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brcm,pins = <17>;
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brcm,function = <0>; // Input
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