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Diffstat (limited to 'target/linux/brcm2708/patches-4.9/0192-Add-support-for-Fe-Pi-audio-sound-card.-1867.patch')
-rw-r--r--target/linux/brcm2708/patches-4.9/0192-Add-support-for-Fe-Pi-audio-sound-card.-1867.patch333
1 files changed, 333 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.9/0192-Add-support-for-Fe-Pi-audio-sound-card.-1867.patch b/target/linux/brcm2708/patches-4.9/0192-Add-support-for-Fe-Pi-audio-sound-card.-1867.patch
new file mode 100644
index 0000000..262dc14
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.9/0192-Add-support-for-Fe-Pi-audio-sound-card.-1867.patch
@@ -0,0 +1,333 @@
+From c646d023c75607a9ebc7296fe424d6eb4e804164 Mon Sep 17 00:00:00 2001
+From: Fe-Pi <fe-pi@cox.net>
+Date: Wed, 1 Mar 2017 04:42:43 -0700
+Subject: [PATCH] Add support for Fe-Pi audio sound card. (#1867)
+
+Fe-Pi Audio Sound Card is based on NXP SGTL5000 codec.
+Mechanical specification of the board is the same the Raspberry Pi Zero.
+3.5mm jacks for Headphone/Mic, Line In, and Line Out.
+
+Signed-off-by: Henry Kupis <fe-pi@cox.net>
+---
+ arch/arm/boot/dts/overlays/Makefile | 1 +
+ arch/arm/boot/dts/overlays/README | 6 +
+ arch/arm/boot/dts/overlays/fe-pi-audio-overlay.dts | 70 +++++++++
+ arch/arm/configs/bcm2709_defconfig | 1 +
+ arch/arm/configs/bcmrpi_defconfig | 1 +
+ sound/soc/bcm/Kconfig | 7 +
+ sound/soc/bcm/Makefile | 2 +
+ sound/soc/bcm/fe-pi-audio.c | 158 +++++++++++++++++++++
+ 8 files changed, 246 insertions(+)
+ create mode 100644 arch/arm/boot/dts/overlays/fe-pi-audio-overlay.dts
+ create mode 100644 sound/soc/bcm/fe-pi-audio.c
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -20,6 +20,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ dwc2.dtbo \
+ enc28j60.dtbo \
+ enc28j60-spi2.dtbo \
++ fe-pi-audio.dtbo \
+ gpio-ir.dtbo \
+ gpio-poweroff.dtbo \
+ hifiberry-amp.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -383,6 +383,12 @@ Params: int_pin GPIO use
+ speed SPI bus speed (default 12000000)
+
+
++Name: fe-pi-audio
++Info: Configures the Fe-Pi Audio Sound Card
++Load: dtoverlay=fe-pi-audio
++Params: <None>
++
++
+ Name: gpio-ir
+ Info: Use GPIO pin as rc-core style infrared receiver input. The rc-core-
+ based gpio_ir_recv driver maps received keys directly to a
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/fe-pi-audio-overlay.dts
+@@ -0,0 +1,70 @@
++// Definitions for Fe-Pi Audio
++/dts-v1/;
++/plugin/;
++
++/ {
++ compatible = "brcm,bcm2708";
++
++ fragment@0 {
++ target = <&clocks>;
++ __overlay__ {
++ sgtl5000_mclk: sgtl5000_mclk {
++ compatible = "fixed-clock";
++ #clock-cells = <0>;
++ clock-frequency = <12288000>;
++ clock-output-names = "sgtl5000-mclk";
++ };
++ };
++ };
++
++ fragment@1 {
++ target = <&soc>;
++ __overlay__ {
++ reg_1v8: reg_1v8@0 {
++ compatible = "regulator-fixed";
++ regulator-name = "1V8";
++ regulator-min-microvolt = <1800000>;
++ regulator-max-microvolt = <1800000>;
++ regulator-always-on;
++ };
++ };
++ };
++
++ fragment@2 {
++ target = <&i2c1>;
++ __overlay__ {
++ #address-cells = <1>;
++ #size-cells = <0>;
++ status = "okay";
++
++ sgtl5000@0a {
++ #sound-dai-cells = <0>;
++ compatible = "fepi,sgtl5000";
++ reg = <0x0a>;
++ clocks = <&sgtl5000_mclk>;
++ micbias-resistor-k-ohms = <2>;
++ micbias-voltage-m-volts = <3000>;
++ VDDA-supply = <&vdd_3v3_reg>;
++ VDDIO-supply = <&vdd_3v3_reg>;
++ VDDD-supply = <&reg_1v8>;
++ status = "okay";
++ };
++ };
++ };
++
++ fragment@3 {
++ target = <&i2s>;
++ __overlay__ {
++ status = "okay";
++ };
++ };
++
++ fragment@4 {
++ target = <&sound>;
++ __overlay__ {
++ compatible = "fe-pi,fe-pi-audio";
++ i2s-controller = <&i2s>;
++ status = "okay";
++ };
++ };
++};
+--- a/arch/arm/configs/bcm2709_defconfig
++++ b/arch/arm/configs/bcm2709_defconfig
+@@ -891,6 +891,7 @@ CONFIG_SND_DIGIDAC1_SOUNDCARD=m
+ CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO=m
+ CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO_V2=m
+ CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC=m
++CONFIG_SND_BCM2708_SOC_FE_PI_AUDIO=m
+ CONFIG_SND_PISOUND=m
+ CONFIG_SND_SOC_ADAU1701=m
+ CONFIG_SND_SOC_ADAU7002=m
+--- a/arch/arm/configs/bcmrpi_defconfig
++++ b/arch/arm/configs/bcmrpi_defconfig
+@@ -885,6 +885,7 @@ CONFIG_SND_DIGIDAC1_SOUNDCARD=m
+ CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO=m
+ CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO_V2=m
+ CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC=m
++CONFIG_SND_BCM2708_SOC_FE_PI_AUDIO=m
+ CONFIG_SND_PISOUND=m
+ CONFIG_SND_SOC_ADAU1701=m
+ CONFIG_SND_SOC_ADAU7002=m
+--- a/sound/soc/bcm/Kconfig
++++ b/sound/soc/bcm/Kconfig
+@@ -147,6 +147,13 @@ config SND_BCM2708_SOC_ALLO_PIANO_DAC
+ help
+ Say Y or M if you want to add support for Allo Piano DAC.
+
++config SND_BCM2708_SOC_FE_PI_AUDIO
++ tristate "Support for Fe-Pi-Audio"
++ depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++ select SND_SOC_SGTL5000
++ help
++ Say Y or M if you want to add support for Fe-Pi-Audio.
++
+ config SND_PISOUND
+ tristate "Support for Blokas Labs pisound"
+ depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+--- a/sound/soc/bcm/Makefile
++++ b/sound/soc/bcm/Makefile
+@@ -28,6 +28,7 @@ snd-soc-dionaudio-loco-objs := dionaudio
+ snd-soc-dionaudio-loco-v2-objs := dionaudio_loco-v2.o
+ snd-soc-allo-piano-dac-objs := allo-piano-dac.o
+ snd-soc-pisound-objs := pisound.o
++snd-soc-fe-pi-audio-objs := fe-pi-audio.o
+
+ obj-$(CONFIG_SND_BCM2708_SOC_ADAU1977_ADC) += snd-soc-adau1977-adc.o
+ obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP) += snd-soc-hifiberry-amp.o
+@@ -48,3 +49,4 @@ obj-$(CONFIG_SND_BCM2708_SOC_DIONAUDIO_L
+ obj-$(CONFIG_SND_BCM2708_SOC_DIONAUDIO_LOCO_V2) += snd-soc-dionaudio-loco-v2.o
+ obj-$(CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC) += snd-soc-allo-piano-dac.o
+ obj-$(CONFIG_SND_PISOUND) += snd-soc-pisound.o
++obj-$(CONFIG_SND_BCM2708_SOC_FE_PI_AUDIO) += snd-soc-fe-pi-audio.o
+--- /dev/null
++++ b/sound/soc/bcm/fe-pi-audio.c
+@@ -0,0 +1,158 @@
++/*
++ * ASoC Driver for Fe-Pi Audio Sound Card
++ *
++ * Author: Henry Kupis <kuupaz@gmail.com>
++ * Copyright 2016
++ * based on code by Florian Meier <florian.meier@koalo.de>
++ * based on code by Shawn Guo <shawn.guo@linaro.org>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ * General Public License for more details.
++ */
++
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/io.h>
++
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <sound/jack.h>
++
++#include "../codecs/sgtl5000.h"
++
++static int snd_fe_pi_audio_init(struct snd_soc_pcm_runtime *rtd)
++{
++ struct snd_soc_card *card = rtd->card;
++ struct snd_soc_codec *codec = rtd->codec;
++
++ snd_soc_dapm_force_enable_pin(&card->dapm, "LO");
++ snd_soc_dapm_force_enable_pin(&card->dapm, "ADC");
++ snd_soc_dapm_force_enable_pin(&card->dapm, "DAC");
++ snd_soc_dapm_force_enable_pin(&card->dapm, "HP");
++ snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER,
++ SGTL5000_VAG_POWERUP, SGTL5000_VAG_POWERUP);
++
++ return 0;
++}
++
++static int snd_fe_pi_audio_hw_params(struct snd_pcm_substream *substream,
++ struct snd_pcm_hw_params *params)
++{
++ struct snd_soc_pcm_runtime *rtd = substream->private_data;
++ struct device *dev = rtd->card->dev;
++ struct snd_soc_dai *codec_dai = rtd->codec_dai;
++
++ int ret;
++
++ /* Set SGTL5000's SYSCLK */
++ ret = snd_soc_dai_set_sysclk(codec_dai, SGTL5000_SYSCLK, 12288000, SND_SOC_CLOCK_IN);
++ if (ret) {
++ dev_err(dev, "could not set codec driver clock params\n");
++ return ret;
++ }
++
++ return 0;
++}
++
++
++static struct snd_soc_ops snd_fe_pi_audio_ops = {
++ .hw_params = snd_fe_pi_audio_hw_params,
++};
++
++static struct snd_soc_dai_link snd_fe_pi_audio_dai[] = {
++ {
++ .name = "FE-PI",
++ .stream_name = "Fe-Pi HiFi",
++ .cpu_dai_name = "bcm2708-i2s.0",
++ .codec_dai_name = "sgtl5000",
++ .platform_name = "bcm2708-i2s.0",
++ .codec_name = "sgtl5000.1-000a",
++ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
++ SND_SOC_DAIFMT_CBM_CFM,
++ .ops = &snd_fe_pi_audio_ops,
++ .init = snd_fe_pi_audio_init,
++ },
++};
++
++static const struct snd_soc_dapm_route fe_pi_audio_dapm_routes[] = {
++ {"ADC", NULL, "Mic Bias"},
++};
++
++
++static struct snd_soc_card fe_pi_audio = {
++ .name = "Fe-Pi Audio",
++ .owner = THIS_MODULE,
++ .dai_link = snd_fe_pi_audio_dai,
++ .num_links = ARRAY_SIZE(snd_fe_pi_audio_dai),
++
++ .dapm_routes = fe_pi_audio_dapm_routes,
++ .num_dapm_routes = ARRAY_SIZE(fe_pi_audio_dapm_routes),
++};
++
++static int snd_fe_pi_audio_probe(struct platform_device *pdev)
++{
++ int ret = 0;
++ struct snd_soc_card *card = &fe_pi_audio;
++ struct device_node *np = pdev->dev.of_node;
++ struct device_node *i2s_node;
++ struct snd_soc_dai_link *dai = &snd_fe_pi_audio_dai[0];
++
++ fe_pi_audio.dev = &pdev->dev;
++
++ i2s_node = of_parse_phandle(np, "i2s-controller", 0);
++ if (!i2s_node) {
++ dev_err(&pdev->dev, "i2s_node phandle missing or invalid\n");
++ return -EINVAL;
++ }
++
++ dai->cpu_dai_name = NULL;
++ dai->cpu_of_node = i2s_node;
++ dai->platform_name = NULL;
++ dai->platform_of_node = i2s_node;
++
++ of_node_put(i2s_node);
++
++ card->dev = &pdev->dev;
++ platform_set_drvdata(pdev, card);
++
++ ret = snd_soc_register_card(card);
++ if (ret && ret != -EPROBE_DEFER)
++ dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", ret);
++
++ return ret;
++}
++
++static int snd_fe_pi_audio_remove(struct platform_device *pdev)
++{
++ return snd_soc_unregister_card(&fe_pi_audio);
++}
++
++static const struct of_device_id snd_fe_pi_audio_of_match[] = {
++ { .compatible = "fe-pi,fe-pi-audio", },
++ {},
++};
++MODULE_DEVICE_TABLE(of, snd_fe_pi_audio_of_match);
++
++static struct platform_driver snd_fe_pi_audio_driver = {
++ .driver = {
++ .name = "snd-fe-pi-audio",
++ .owner = THIS_MODULE,
++ .of_match_table = snd_fe_pi_audio_of_match,
++ },
++ .probe = snd_fe_pi_audio_probe,
++ .remove = snd_fe_pi_audio_remove,
++};
++
++module_platform_driver(snd_fe_pi_audio_driver);
++
++MODULE_AUTHOR("Henry Kupis <fe-pi@cox.net>");
++MODULE_DESCRIPTION("ASoC Driver for Fe-Pi Audio");
++MODULE_LICENSE("GPL v2");
generated by cgit v1.1 at 2025-03-31 15:06:32 +0000