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Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0423-Added-IQaudIO-Pi-Codec-board-support-2969.patch')
-rw-r--r--target/linux/brcm2708/patches-4.19/950-0423-Added-IQaudIO-Pi-Codec-board-support-2969.patch376
1 files changed, 376 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0423-Added-IQaudIO-Pi-Codec-board-support-2969.patch b/target/linux/brcm2708/patches-4.19/950-0423-Added-IQaudIO-Pi-Codec-board-support-2969.patch
new file mode 100644
index 0000000000..b063e38854
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0423-Added-IQaudIO-Pi-Codec-board-support-2969.patch
@@ -0,0 +1,376 @@
+From 930c49de8674acda0f143f7bc182ed2fad8c4f9d Mon Sep 17 00:00:00 2001
+From: IQaudIO <gordon@iqaudio.com>
+Date: Mon, 13 May 2019 21:53:05 +0100
+Subject: [PATCH] Added IQaudIO Pi-Codec board support (#2969)
+
+Add support for the IQaudIO Pi-Codec board.
+
+Signed-off-by: Gordon <gordon@iqaudio.com>
+---
+ arch/arm/boot/dts/overlays/Makefile | 1 +
+ arch/arm/boot/dts/overlays/README | 6 +
+ .../dts/overlays/iqaudio-codec-overlay.dts | 42 +++
+ sound/soc/bcm/Kconfig | 7 +
+ sound/soc/bcm/Makefile | 2 +
+ sound/soc/bcm/iqaudio-codec.c | 250 ++++++++++++++++++
+ 9 files changed, 311 insertions(+)
+ create mode 100644 arch/arm/boot/dts/overlays/iqaudio-codec-overlay.dts
+ create mode 100644 sound/soc/bcm/iqaudio-codec.c
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -68,6 +68,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ i2c1-bcm2708.dtbo \
+ i2s-gpio28-31.dtbo \
+ ilitek251x.dtbo \
++ iqaudio-codec.dtbo \
+ iqaudio-dac.dtbo \
+ iqaudio-dacplus.dtbo \
+ iqaudio-digi-wm8804-audio.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -1160,6 +1160,12 @@ Params: interrupt GPIO use
+ touchscreen (in pixels)
+
+
++Name: iqaudio-codec
++Info: Configures the IQaudio Codec audio card
++Load: dtoverlay=iqaudio-codec
++Params: <None>
++
++
+ Name: iqaudio-dac
+ Info: Configures the IQaudio DAC audio card
+ Load: dtoverlay=iqaudio-dac,<param>
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/iqaudio-codec-overlay.dts
+@@ -0,0 +1,42 @@
++// Definitions for IQaudIO CODEC
++/dts-v1/;
++/plugin/;
++
++/ {
++ compatible = "brcm,bcm2708";
++
++ fragment@0 {
++ target = <&i2s>;
++ __overlay__ {
++ status = "okay";
++ };
++ };
++
++ fragment@1 {
++ target = <&i2c1>;
++ __overlay__ {
++ #address-cells = <1>;
++ #size-cells = <0>;
++ status = "okay";
++
++ da2713@1a {
++ #sound-dai-cells = <0>;
++ compatible = "dlg,da7213";
++ reg = <0x1a>;
++ status = "okay";
++ };
++ };
++ };
++
++ fragment@2 {
++ target = <&sound>;
++ iqaudio_dac: __overlay__ {
++ compatible = "iqaudio,iqaudio-codec";
++ i2s-controller = <&i2s>;
++ status = "okay";
++ };
++ };
++
++ __overrides__ {
++ };
++};
+--- a/sound/soc/bcm/Kconfig
++++ b/sound/soc/bcm/Kconfig
+@@ -108,6 +108,13 @@ config SND_BCM2708_SOC_JUSTBOOM_DIGI
+ help
+ Say Y or M if you want to add support for JustBoom Digi.
+
++config SND_BCM2708_SOC_IQAUDIO_CODEC
++ tristate "Support for IQaudIO-CODEC"
++ depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++ select SND_SOC_DA7213
++ help
++ Say Y or M if you want to add support for IQaudIO-CODEC.
++
+ config SND_BCM2708_SOC_IQAUDIO_DAC
+ tristate "Support for IQaudIO-DAC"
+ depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+--- a/sound/soc/bcm/Makefile
++++ b/sound/soc/bcm/Makefile
+@@ -18,6 +18,7 @@ snd-soc-hifiberry-dacplusadc-objs := hif
+ snd-soc-justboom-dac-objs := justboom-dac.o
+ snd-soc-rpi-cirrus-objs := rpi-cirrus.o
+ snd-soc-rpi-proto-objs := rpi-proto.o
++snd-soc-iqaudio-codec-objs := iqaudio-codec.o
+ snd-soc-iqaudio-dac-objs := iqaudio-dac.o
+ snd-soc-i-sabre-q2m-objs := i-sabre-q2m.o
+ snd-soc-audioinjector-pi-soundcard-objs := audioinjector-pi-soundcard.o
+@@ -42,6 +43,7 @@ obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_D
+ obj-$(CONFIG_SND_BCM2708_SOC_JUSTBOOM_DAC) += snd-soc-justboom-dac.o
+ obj-$(CONFIG_SND_BCM2708_SOC_RPI_CIRRUS) += snd-soc-rpi-cirrus.o
+ obj-$(CONFIG_SND_BCM2708_SOC_RPI_PROTO) += snd-soc-rpi-proto.o
++obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_CODEC) += snd-soc-iqaudio-codec.o
+ obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC) += snd-soc-iqaudio-dac.o
+ obj-$(CONFIG_SND_BCM2708_SOC_I_SABRE_Q2M) += snd-soc-i-sabre-q2m.o
+ obj-$(CONFIG_SND_AUDIOINJECTOR_PI_SOUNDCARD) += snd-soc-audioinjector-pi-soundcard.o
+--- /dev/null
++++ b/sound/soc/bcm/iqaudio-codec.c
+@@ -0,0 +1,250 @@
++/*
++ * ASoC Driver for IQaudIO Raspberry Pi Codec board
++ *
++ * Author: Gordon Garrity <gordon@iqaudio.com>
++ * (C) Copyright IQaudio Limited, 2017-2019
++ *
++ * 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/gpio/consumer.h>
++#include <linux/platform_device.h>
++
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <sound/jack.h>
++
++#include <linux/acpi.h>
++#include <linux/slab.h>
++#include "../codecs/da7213.h"
++
++static int pll_out = DA7213_PLL_FREQ_OUT_90316800;
++
++static int snd_rpi_iqaudio_pll_control(struct snd_soc_dapm_widget *w,
++ struct snd_kcontrol *k, int event)
++{
++ int ret = 0;
++ struct snd_soc_dapm_context *dapm = w->dapm;
++ struct snd_soc_card *card = dapm->card;
++ struct snd_soc_pcm_runtime *rtd =
++ snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
++ struct snd_soc_dai *codec_dai = rtd->codec_dai;
++
++ if (SND_SOC_DAPM_EVENT_OFF(event)) {
++ ret = snd_soc_dai_set_pll(codec_dai, 0, DA7213_SYSCLK_MCLK, 0,
++ 0);
++ if (ret)
++ dev_err(card->dev, "Failed to bypass PLL: %d\n", ret);
++ } else if (SND_SOC_DAPM_EVENT_ON(event)) {
++ ret = snd_soc_dai_set_pll(codec_dai, 0, DA7213_SYSCLK_PLL, 0,
++ pll_out);
++ if (ret)
++ dev_err(card->dev, "Failed to enable PLL: %d\n", ret);
++ }
++
++ return ret;
++}
++
++static int snd_rpi_iqaudio_post_dapm_event(struct snd_soc_dapm_widget *w,
++ struct snd_kcontrol *kcontrol,
++ int event)
++{
++ switch (event) {
++ case SND_SOC_DAPM_POST_PMU:
++ /* Delay for mic bias ramp */
++ msleep(1000);
++ break;
++ default:
++ break;
++ }
++
++ return 0;
++}
++
++static const struct snd_soc_dapm_widget dapm_widgets[] = {
++ SND_SOC_DAPM_HP("HP Jack", NULL),
++ SND_SOC_DAPM_MIC("MIC Jack", NULL),
++ SND_SOC_DAPM_MIC("Onboard MIC", NULL),
++ SND_SOC_DAPM_LINE("AUX Jack", NULL),
++ SND_SOC_DAPM_SUPPLY("PLL Control", SND_SOC_NOPM, 0, 0,
++ snd_rpi_iqaudio_pll_control,
++ SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
++ SND_SOC_DAPM_POST("Post Power Up Event", snd_rpi_iqaudio_post_dapm_event),
++};
++
++static const struct snd_soc_dapm_route audio_map[] = {
++ {"HP Jack", NULL, "HPL"},
++ {"HP Jack", NULL, "HPR"},
++ {"HP Jack", NULL, "PLL Control"},
++
++ {"AUX Jack", NULL, "AUXR"},
++ {"AUX Jack", NULL, "AUXL"},
++ {"AUX Jack", NULL, "PLL Control"},
++
++ /* Assume Mic1 is linked to Headset and Mic2 to on-board mic */
++ {"MIC Jack", NULL, "MIC1"},
++ {"MIC Jack", NULL, "PLL Control"},
++ {"Onboard MIC", NULL, "MIC2"},
++ {"Onboard MIC", NULL, "PLL Control"},
++};
++
++/* machine stream operations */
++
++static int snd_rpi_iqaudio_codec_init(struct snd_soc_pcm_runtime *rtd)
++{
++ struct snd_soc_dai *codec_dai = rtd->codec_dai;
++ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
++ int ret;
++
++ /* Set bclk ratio to align with codec's BCLK rate */
++ ret = snd_soc_dai_set_bclk_ratio(cpu_dai, 64);
++ if (ret) {
++ dev_err(rtd->dev, "Failed to set CPU BLCK ratio\n");
++ return ret;
++ }
++
++ /* Set MCLK frequency to codec, onboard 11.2896MHz clock */
++ return snd_soc_dai_set_sysclk(codec_dai, DA7213_CLKSRC_MCLK, 11289600,
++ SND_SOC_CLOCK_OUT);
++}
++
++static int snd_rpi_iqaudio_codec_hw_params(struct snd_pcm_substream *substream,
++ struct snd_pcm_hw_params *params)
++{
++ struct snd_soc_pcm_runtime *rtd = substream->private_data;
++ unsigned int samplerate = params_rate(params);
++
++ switch (samplerate) {
++ case 8000:
++ case 16000:
++ case 32000:
++ case 48000:
++ case 96000:
++ pll_out = DA7213_PLL_FREQ_OUT_98304000;
++ return 0;
++ case 44100:
++ case 88200:
++ pll_out = DA7213_PLL_FREQ_OUT_90316800;
++ return 0;
++ default:
++ dev_err(rtd->dev,"Unsupported samplerate %d\n", samplerate);
++ return -EINVAL;
++ }
++}
++
++static const struct snd_soc_ops snd_rpi_iqaudio_codec_ops = {
++ .hw_params = snd_rpi_iqaudio_codec_hw_params,
++};
++
++
++static struct snd_soc_dai_link snd_rpi_iqaudio_codec_dai[] = {
++{
++ .cpu_dai_name = "bcm2708-i2s.0",
++ .codec_dai_name = "da7213-hifi",
++ .platform_name = "bmc2708-i2s.0",
++ .codec_name = "da7213.1-001a",
++ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
++ SND_SOC_DAIFMT_CBM_CFM,
++ .init = snd_rpi_iqaudio_codec_init,
++ .ops = &snd_rpi_iqaudio_codec_ops,
++ .symmetric_rates = 1,
++ .symmetric_channels = 1,
++ .symmetric_samplebits = 1,
++},
++};
++
++/* audio machine driver */
++static struct snd_soc_card snd_rpi_iqaudio_codec = {
++ .owner = THIS_MODULE,
++ .dai_link = snd_rpi_iqaudio_codec_dai,
++ .num_links = ARRAY_SIZE(snd_rpi_iqaudio_codec_dai),
++ .dapm_widgets = dapm_widgets,
++ .num_dapm_widgets = ARRAY_SIZE(dapm_widgets),
++ .dapm_routes = audio_map,
++ .num_dapm_routes = ARRAY_SIZE(audio_map),
++};
++
++static int snd_rpi_iqaudio_codec_probe(struct platform_device *pdev)
++{
++ int ret = 0;
++
++ snd_rpi_iqaudio_codec.dev = &pdev->dev;
++
++ if (pdev->dev.of_node) {
++ struct device_node *i2s_node;
++ struct snd_soc_card *card = &snd_rpi_iqaudio_codec;
++ struct snd_soc_dai_link *dai = &snd_rpi_iqaudio_codec_dai[0];
++
++ i2s_node = of_parse_phandle(pdev->dev.of_node,
++ "i2s-controller", 0);
++ if (i2s_node) {
++ dai->cpu_dai_name = NULL;
++ dai->cpu_of_node = i2s_node;
++ dai->platform_name = NULL;
++ dai->platform_of_node = i2s_node;
++ }
++
++ if (of_property_read_string(pdev->dev.of_node, "card_name",
++ &card->name))
++ card->name = "IQaudIOCODEC";
++
++ if (of_property_read_string(pdev->dev.of_node, "dai_name",
++ &dai->name))
++ dai->name = "IQaudIO CODEC";
++
++ if (of_property_read_string(pdev->dev.of_node,
++ "dai_stream_name", &dai->stream_name))
++ dai->stream_name = "IQaudIO CODEC HiFi v1.1";
++
++ }
++
++ ret = snd_soc_register_card(&snd_rpi_iqaudio_codec);
++ if (ret) {
++ if (ret != -EPROBE_DEFER)
++ dev_err(&pdev->dev,
++ "snd_soc_register_card() failed: %d\n", ret);
++ return ret;
++ }
++
++ return 0;
++}
++
++static int snd_rpi_iqaudio_codec_remove(struct platform_device *pdev)
++{
++ return snd_soc_unregister_card(&snd_rpi_iqaudio_codec);
++}
++
++static const struct of_device_id iqaudio_of_match[] = {
++ { .compatible = "iqaudio,iqaudio-codec", },
++ {},
++};
++
++MODULE_DEVICE_TABLE(of, iqaudio_of_match);
++
++static struct platform_driver snd_rpi_iqaudio_codec_driver = {
++ .driver = {
++ .name = "snd-rpi-iqaudio-codec",
++ .owner = THIS_MODULE,
++ .of_match_table = iqaudio_of_match,
++ },
++ .probe = snd_rpi_iqaudio_codec_probe,
++ .remove = snd_rpi_iqaudio_codec_remove,
++};
++
++
++
++module_platform_driver(snd_rpi_iqaudio_codec_driver);
++
++MODULE_AUTHOR("Gordon Garrity <gordon@iqaudio.com>");
++MODULE_DESCRIPTION("ASoC Driver for IQaudIO CODEC");
++MODULE_LICENSE("GPL v2");
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