diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0303-BCM270X-Adding-device-tree-support-for-AudioSense-Pi.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.19/950-0303-BCM270X-Adding-device-tree-support-for-AudioSense-Pi.patch | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0303-BCM270X-Adding-device-tree-support-for-AudioSense-Pi.patch b/target/linux/brcm2708/patches-4.19/950-0303-BCM270X-Adding-device-tree-support-for-AudioSense-Pi.patch new file mode 100644 index 0000000000..666da86998 --- /dev/null +++ b/target/linux/brcm2708/patches-4.19/950-0303-BCM270X-Adding-device-tree-support-for-AudioSense-Pi.patch @@ -0,0 +1,135 @@ +From 43f0013d9050a0011c05370c9b6123eb059f235b 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 303/703] 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"; ++ }; ++ }; ++}; |