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2b1c6b21b5
As usual these patches were extracted and rebased from the raspberry pi repo: https://github.com/raspberrypi/linux/tree/rpi-4.4.y Also adds support for Raspberry Pi Compute Module 3 (untested). Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
123 lines
2.5 KiB
Diff
123 lines
2.5 KiB
Diff
From 4a1655a918b26f5d24d04b1bb798feb39982ac78 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.org>
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Date: Mon, 20 Jun 2016 13:21:26 +0100
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Subject: [PATCH] BCM270X_DT: Declare the audio PWM pins explicitly
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Make the audio driver's use of the PWM functions explicit. Overlays
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that want to use the PWM functionality for other purposes must
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disable the audio node.
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See: https://github.com/raspberrypi/linux/issues/1473
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Signed-off-by: Phil Elwell <phil@raspberrypi.org>
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---
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arch/arm/boot/dts/bcm2708-rpi-b-plus.dts | 10 ++++++++++
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arch/arm/boot/dts/bcm2708-rpi-b.dts | 9 +++++++++
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arch/arm/boot/dts/bcm2709-rpi-2-b.dts | 10 ++++++++++
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arch/arm/boot/dts/bcm2710-rpi-3-b.dts | 10 ++++++++++
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4 files changed, 39 insertions(+)
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--- a/arch/arm/boot/dts/bcm2708-rpi-b-plus.dts
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+++ b/arch/arm/boot/dts/bcm2708-rpi-b-plus.dts
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@@ -37,6 +37,11 @@
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brcm,pins = <18 19 20 21>;
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brcm,function = <4>; /* alt0 */
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};
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+
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+ audio_pins: audio_pins {
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+ brcm,pins = <40 45>;
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+ brcm,function = <4>;
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+ };
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};
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&sdhost {
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@@ -120,6 +125,11 @@
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hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
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};
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+&audio {
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&audio_pins>;
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+};
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+
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/ {
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__overrides__ {
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uart0 = <&uart0>,"status";
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--- a/arch/arm/boot/dts/bcm2708-rpi-b.dts
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+++ b/arch/arm/boot/dts/bcm2708-rpi-b.dts
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@@ -36,6 +36,10 @@
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i2s_pins: i2s {
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brcm,pins = <28 29 30 31>;
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brcm,function = <6>; /* alt2 */
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+
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+ audio_pins: audio_pins {
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+ brcm,pins = <40 45>;
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+ brcm,function = <4>;
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};
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};
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@@ -114,6 +118,11 @@
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hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>;
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};
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+&audio {
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&audio_pins>;
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+};
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+
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/ {
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__overrides__ {
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uart0 = <&uart0>,"status";
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--- a/arch/arm/boot/dts/bcm2709-rpi-2-b.dts
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+++ b/arch/arm/boot/dts/bcm2709-rpi-2-b.dts
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@@ -37,6 +37,11 @@
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brcm,pins = <18 19 20 21>;
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brcm,function = <4>; /* alt0 */
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};
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+
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+ audio_pins: audio_pins {
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+ brcm,pins = <40 45>;
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+ brcm,function = <4>;
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+ };
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};
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&sdhost {
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@@ -120,6 +125,11 @@
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hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
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};
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+&audio {
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&audio_pins>;
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+};
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+
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/ {
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__overrides__ {
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uart0 = <&uart0>,"status";
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--- a/arch/arm/boot/dts/bcm2710-rpi-3-b.dts
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+++ b/arch/arm/boot/dts/bcm2710-rpi-3-b.dts
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@@ -61,6 +61,11 @@
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brcm,function;
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brcm,pull;
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};
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+
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+ audio_pins: audio_pins {
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+ brcm,pins = <40 41>;
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+ brcm,function = <4>;
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+ };
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};
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&sdhost {
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@@ -165,6 +170,11 @@
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hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
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};
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+&audio {
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&audio_pins>;
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+};
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+
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/ {
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chosen {
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bootargs = "8250.nr_uarts=1";
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