You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
62 lines
1.9 KiB
62 lines
1.9 KiB
From e64de6a371f40d4d1b3333e2b85ca8aa0b52fe74 Mon Sep 17 00:00:00 2001
|
|
From: Martin Sperl <kernel@martin.sperl.org>
|
|
Date: Sat, 23 Apr 2016 15:21:41 +0000
|
|
Subject: [PATCH] ARM: bcm2835: add i2s-gpio28-31 for cm
|
|
|
|
Add i2s-gpio28-31 overlay for compute module
|
|
so that i2s is using gpio28-31
|
|
|
|
Signed-off-by: Martin Sperl <kernel@martin.sperl.org>
|
|
---
|
|
arch/arm/boot/dts/overlays/Makefile | 1 +
|
|
arch/arm/boot/dts/overlays/README | 6 ++++++
|
|
arch/arm/boot/dts/overlays/i2s-gpio28-31-overlay.dts | 18 ++++++++++++++++++
|
|
3 files changed, 25 insertions(+)
|
|
create mode 100644 arch/arm/boot/dts/overlays/i2s-gpio28-31-overlay.dts
|
|
|
|
--- a/arch/arm/boot/dts/overlays/Makefile
|
|
+++ b/arch/arm/boot/dts/overlays/Makefile
|
|
@@ -37,6 +37,7 @@ dtbo-$(RPI_DT_OVERLAYS) += i2c-mux-pca95
|
|
dtbo-$(RPI_DT_OVERLAYS) += i2c-pwm-pca9685a.dtbo
|
|
dtbo-$(RPI_DT_OVERLAYS) += i2c0-bcm2708.dtbo
|
|
dtbo-$(RPI_DT_OVERLAYS) += i2c1-bcm2708.dtbo
|
|
+dtbo-$(RPI_DT_OVERLAYS) += i2s-gpio28-31.dtbo
|
|
dtbo-$(RPI_DT_OVERLAYS) += i2s-mmap.dtbo
|
|
dtbo-$(RPI_DT_OVERLAYS) += iqaudio-dac.dtbo
|
|
dtbo-$(RPI_DT_OVERLAYS) += iqaudio-dacplus.dtbo
|
|
--- a/arch/arm/boot/dts/overlays/README
|
|
+++ b/arch/arm/boot/dts/overlays/README
|
|
@@ -464,6 +464,12 @@ Params: sda1_pin GPIO pin
|
|
default 4)
|
|
|
|
|
|
+Name: i2s-gpio28-31
|
|
+Info: move I2S function block to GPIO 28 to 31
|
|
+Load: dtoverlay=i2s-gpio28-31
|
|
+Params: <None>
|
|
+
|
|
+
|
|
Name: i2s-mmap
|
|
Info: Enables mmap support in the bcm2708-i2s driver
|
|
Load: dtoverlay=i2s-mmap
|
|
--- /dev/null
|
|
+++ b/arch/arm/boot/dts/overlays/i2s-gpio28-31-overlay.dts
|
|
@@ -0,0 +1,18 @@
|
|
+/*
|
|
+ * Device tree overlay to move i2s to gpio 28 to 31 on CM
|
|
+ */
|
|
+
|
|
+/dts-v1/;
|
|
+/plugin/;
|
|
+
|
|
+/ {
|
|
+ compatible = "brcm,bcm2835", "brcm,bcm2836", "brcm,bcm2708", "brcm,bcm2709";
|
|
+
|
|
+ fragment@0 {
|
|
+ target = <&i2s_pins>;
|
|
+ __overlay__ {
|
|
+ brcm,pins = <28 29 30 31>;
|
|
+ brcm,function = <6>; /* alt2 */
|
|
+ };
|
|
+ };
|
|
+};
|
|
|