brcm2708: update to latest patches from RPi foundation

[openwrt/openwrt.git] / target / linux / brcm2708 / patches-4.19 / 950-0261-BCM270X-Adding-device-tree-support-for-AudioSense-Pi.patch

diff --git a/target/linux/brcm2708/patches-4.19/950-0261-BCM270X-Adding-device-tree-support-for-AudioSense-Pi.patch b/target/linux/brcm2708/patches-4.19/950-0261-BCM270X-Adding-device-tree-support-for-AudioSense-Pi.patch
new file mode 100644 (file)
index 0000000..1e85d9f
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0261-BCM270X-Adding-device-tree-support-for-AudioSense-Pi.patch
@@ -0,0 +1,135 @@
+From 0d2a0f4f4c00c958fb6e7a2673adbe51c2a932f2 Mon Sep 17 00:00:00 2001
+From: b-ak <anur.bhargav@gmail.com>
+Date: Thu, 3 Jan 2019 00:29:14 +0530
+Subject: [PATCH] BCM270X: Adding device tree support for AudioSense-Pi
+ add-on soundcard
+
+Device tree overlay for AudioSense-Pi card.
+
+To enable support for the hardware add the following
+line to the RPi /boot/config.txt:
+
+       dtoverlay=audiosense-pi
+
+More documentation @ arch/arm/boot/dts/overlays/README
+
+Signed-off-by: b-ak <anur.bhargav@gmail.com>
+---
+ arch/arm/boot/dts/overlays/Makefile           |  1 +
+ arch/arm/boot/dts/overlays/README             |  8 ++
+ .../dts/overlays/audiosense-pi-overlay.dts    | 82 +++++++++++++++++++
+ 3 files changed, 91 insertions(+)
+ create mode 100644 arch/arm/boot/dts/overlays/audiosense-pi-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -20,6 +20,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+       audioinjector-addons.dtbo \
+       audioinjector-ultra.dtbo \
+       audioinjector-wm8731-audio.dtbo \
++      audiosense-pi.dtbo \
+       audremap.dtbo \
+       balena-fin.dtbo \
+       bmp085_i2c-sensor.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -453,6 +453,14 @@ Load:   dtoverlay=audioinjector-wm8731-a
+ Params: <None>
+ 
+ 
++Name:   audiosense-pi
++Info:   Configures the audiosense-pi add on soundcard
++        For more information refer to
++        https://gitlab.com/kakar0t/audiosense-pi
++Load:   dtoverlay=audiosense-pi
++Params: <None>
++
++
+ Name:   audremap
+ Info:   Switches PWM sound output to pins 12 (Right) & 13 (Left)
+ Load:   dtoverlay=audremap,<param>=<val>
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/audiosense-pi-overlay.dts
+@@ -0,0 +1,82 @@
++// Definitions for audiosense add on soundcard
++/dts-v1/;
++/plugin/;
++#include <dt-bindings/pinctrl/bcm2835.h>
++#include <dt-bindings/gpio/gpio.h>
++
++/ {
++      compatible = "brcm,bcm2837", "brcm,bcm2836", "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
++
++      fragment@0 {
++              target = <&i2s>;
++              __overlay__ {
++                      status = "okay";
++              };
++      };
++
++      fragment@1 {
++              target-path = "/";
++              __overlay__ {
++                      codec_reg_1v8: codec-reg-1v8 {
++                              compatible = "regulator-fixed";
++                              regulator-name = "tlv320aic3204_1v8";
++                              regulator-min-microvolt = <1800000>;
++                              regulator-max-microvolt = <1800000>;
++                              regulator-always-on;
++                      };
++              };
++      };
++
++      fragment@2 {
++              target = <&gpio>;
++              __overlay__ {
++                      codec_rst: codec-rst {
++                              brcm,pins = <26>;
++                              brcm,function = <BCM2835_FSEL_GPIO_OUT>;
++                      };
++              };
++      };
++
++      fragment@3 {
++              target = <&i2c1>;
++              __overlay__ {
++                      #address-cells = <1>;
++                      #size-cells = <0>;
++                      status = "okay";
++
++                      /* audio external oscillator */
++                      codec_osc: codec_osc {
++                              compatible = "fixed-clock";
++                              #clock-cells = <0>;
++                              clock-frequency = <12000000>;   /* 12 MHz */
++                      };
++
++                      codec: tlv320aic32x4@18 {
++                              #sound-dai-cells = <0>;
++                              compatible = "ti,tlv320aic32x4";
++                              reg = <0x18>;
++
++                              clocks = <&codec_osc>;
++                              clock-names = "mclk";
++
++                              iov-supply = <&vdd_3v3_reg>;
++                              ldoin-supply = <&vdd_3v3_reg>;
++
++                              gpio-controller;
++                              #gpio-cells = <2>;
++                              reset-gpios = <&gpio 26 GPIO_ACTIVE_HIGH>;
++
++                              status = "okay";
++                      };
++              };
++      };
++
++      fragment@4 {
++              target = <&sound>;
++              __overlay__ {
++                      compatible = "as,audiosense-pi";
++                      i2s-controller = <&i2s>;
++                      status = "okay";
++              };
++      };
++};