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-rw-r--r--target/linux/brcm2708/patches-4.14/950-0088-Allo-Digione-Driver-2048.patch318
1 files changed, 318 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.14/950-0088-Allo-Digione-Driver-2048.patch b/target/linux/brcm2708/patches-4.14/950-0088-Allo-Digione-Driver-2048.patch
new file mode 100644
index 0000000000..e017f552d1
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.14/950-0088-Allo-Digione-Driver-2048.patch
@@ -0,0 +1,318 @@
+From 525cdff530e74a8428a60859f9308bca825463fd Mon Sep 17 00:00:00 2001
+From: sandeepal <alsandeep@cem-solutions.net>
+Date: Fri, 2 Jun 2017 18:59:46 +0530
+Subject: [PATCH 088/454] Allo Digione Driver (#2048)
+
+Driver for the Allo Digione soundcard
+
+allo-digione: 192kHz clicking sound fix
+
+See: https://github.com/raspberrypi/linux/pull/2149
+---
+ sound/soc/bcm/Kconfig | 7 +
+ sound/soc/bcm/Makefile | 2 +
+ sound/soc/bcm/allo-digione.c | 265 +++++++++++++++++++++++++++++++++++
+ 3 files changed, 274 insertions(+)
+ create mode 100644 sound/soc/bcm/allo-digione.c
+
+--- a/sound/soc/bcm/Kconfig
++++ b/sound/soc/bcm/Kconfig
+@@ -176,6 +176,13 @@ config SND_BCM2708_SOC_ALLO_BOSS_DAC
+ help
+ Say Y or M if you want to add support for Allo Boss DAC.
+
++config SND_BCM2708_SOC_ALLO_DIGIONE
++ tristate "Support for Allo DigiOne"
++ depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
++ select SND_SOC_PCM512x_I2C
++ help
++ Say Y or M if you want to add support for Allo DigiOne.
++
+ config SND_BCM2708_SOC_FE_PI_AUDIO
+ tristate "Support for Fe-Pi-Audio"
+ depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
+--- a/sound/soc/bcm/Makefile
++++ b/sound/soc/bcm/Makefile
+@@ -34,6 +34,7 @@ snd-soc-dionaudio-loco-v2-objs := dionau
+ snd-soc-allo-boss-dac-objs := allo-boss-dac.o
+ snd-soc-allo-piano-dac-objs := allo-piano-dac.o
+ snd-soc-allo-piano-dac-plus-objs := allo-piano-dac-plus.o
++snd-soc-allo-digione-objs := allo-digione.o
+ snd-soc-pisound-objs := pisound.o
+ snd-soc-fe-pi-audio-objs := fe-pi-audio.o
+
+@@ -60,5 +61,6 @@ obj-$(CONFIG_SND_BCM2708_SOC_DIONAUDIO_L
+ obj-$(CONFIG_SND_BCM2708_SOC_ALLO_BOSS_DAC) += snd-soc-allo-boss-dac.o
+ obj-$(CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC) += snd-soc-allo-piano-dac.o
+ obj-$(CONFIG_SND_BCM2708_SOC_ALLO_PIANO_DAC_PLUS) += snd-soc-allo-piano-dac-plus.o
++obj-$(CONFIG_SND_BCM2708_SOC_ALLO_DIGIONE) += snd-soc-allo-digione.o
+ obj-$(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/allo-digione.c
+@@ -0,0 +1,265 @@
++/*
++ * ASoC Driver for Allo DigiOne
++ *
++ * Author: Baswaraj <jaikumar@cemsolutions.net>
++ * Copyright 2017
++ * based on code by Daniel Matuschek <info@crazy-audio.com>
++ * based on code by Florian Meier <florian.meier@koalo.de>
++ *
++ * 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 <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/soc.h>
++#include <sound/jack.h>
++#include <linux/gpio/consumer.h>
++
++#include "../codecs/wm8804.h"
++
++static short int auto_shutdown_output;
++module_param(auto_shutdown_output, short,
++ S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP);
++MODULE_PARM_DESC(auto_shutdown_output, "Shutdown SP/DIF output if playback is stopped");
++
++#define CLK_44EN_RATE 22579200UL
++#define CLK_48EN_RATE 24576000UL
++
++static struct gpio_desc *snd_allo_clk44gpio;
++static struct gpio_desc *snd_allo_clk48gpio;
++
++static int samplerate = 44100;
++
++static uint32_t snd_allo_digione_enable_clock(int sample_rate)
++{
++ switch (sample_rate) {
++ case 11025:
++ case 22050:
++ case 44100:
++ case 88200:
++ case 176400:
++ gpiod_set_value_cansleep(snd_allo_clk44gpio, 1);
++ gpiod_set_value_cansleep(snd_allo_clk48gpio, 0);
++ return CLK_44EN_RATE;
++ default:
++ gpiod_set_value_cansleep(snd_allo_clk48gpio, 1);
++ gpiod_set_value_cansleep(snd_allo_clk44gpio, 0);
++ return CLK_48EN_RATE;
++ }
++}
++
++
++static int snd_allo_digione_init(struct snd_soc_pcm_runtime *rtd)
++{
++ struct snd_soc_codec *codec = rtd->codec;
++
++ /* enable TX output */
++ snd_soc_update_bits(codec, WM8804_PWRDN, 0x4, 0x0);
++
++ return 0;
++}
++
++static int snd_allo_digione_startup(struct snd_pcm_substream *substream)
++{
++ /* turn on digital output */
++ struct snd_soc_pcm_runtime *rtd = substream->private_data;
++ struct snd_soc_codec *codec = rtd->codec;
++
++ snd_soc_update_bits(codec, WM8804_PWRDN, 0x3c, 0x00);
++ return 0;
++}
++
++static void snd_allo_digione_shutdown(struct snd_pcm_substream *substream)
++{
++ /* turn off output */
++ if (auto_shutdown_output) {
++ /* turn off output */
++ struct snd_soc_pcm_runtime *rtd = substream->private_data;
++ struct snd_soc_codec *codec = rtd->codec;
++
++ snd_soc_update_bits(codec, WM8804_PWRDN, 0x3c, 0x3c);
++ }
++}
++
++static int snd_allo_digione_hw_params(struct snd_pcm_substream *substream,
++ struct snd_pcm_hw_params *params)
++{
++ struct snd_soc_pcm_runtime *rtd = substream->private_data;
++ struct snd_soc_dai *codec_dai = rtd->codec_dai;
++ struct snd_soc_codec *codec = rtd->codec;
++ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
++
++ int sysclk = 27000000; /* This is fixed on this board */
++
++ long mclk_freq = 0;
++ int mclk_div = 1;
++ int sampling_freq = 1;
++
++ int ret;
++
++ samplerate = params_rate(params);
++ mclk_freq = samplerate * 256;
++ mclk_div = WM8804_MCLKDIV_256FS;
++
++ sysclk = snd_allo_digione_enable_clock(samplerate);
++
++ switch (samplerate) {
++ case 32000:
++ sampling_freq = 0x03;
++ break;
++ case 44100:
++ sampling_freq = 0x00;
++ break;
++ case 48000:
++ sampling_freq = 0x02;
++ break;
++ case 88200:
++ sampling_freq = 0x08;
++ break;
++ case 96000:
++ sampling_freq = 0x0a;
++ break;
++ case 176400:
++ sampling_freq = 0x0c;
++ break;
++ case 192000:
++ sampling_freq = 0x0e;
++ break;
++ default:
++ dev_err(codec->dev,
++ "Failed to set WM8804 SYSCLK, unsupported samplerate %d\n",
++ samplerate);
++ }
++
++ snd_soc_dai_set_clkdiv(codec_dai, WM8804_MCLK_DIV, mclk_div);
++ snd_soc_dai_set_pll(codec_dai, 0, 0, sysclk, mclk_freq);
++
++ ret = snd_soc_dai_set_sysclk(codec_dai, WM8804_TX_CLKSRC_PLL,
++ sysclk, SND_SOC_CLOCK_OUT);
++
++ if (ret < 0) {
++ dev_err(codec->dev,
++ "Failed to set WM8804 SYSCLK: %d\n", ret);
++ return ret;
++ }
++
++ /* Enable TX output */
++ snd_soc_update_bits(codec, WM8804_PWRDN, 0x4, 0x0);
++
++ /* Power on */
++ snd_soc_update_bits(codec, WM8804_PWRDN, 0x9, 0);
++
++ /* set sampling frequency status bits */
++ snd_soc_update_bits(codec, WM8804_SPDTX4, 0x0f, sampling_freq);
++
++ return snd_soc_dai_set_bclk_ratio(cpu_dai, 64);
++}
++
++/* machine stream operations */
++static struct snd_soc_ops snd_allo_digione_ops = {
++ .hw_params = snd_allo_digione_hw_params,
++ .startup = snd_allo_digione_startup,
++ .shutdown = snd_allo_digione_shutdown,
++};
++
++static struct snd_soc_dai_link snd_allo_digione_dai[] = {
++{
++ .name = "Allo DigiOne",
++ .stream_name = "Allo DigiOne HiFi",
++ .cpu_dai_name = "bcm2708-i2s.0",
++ .codec_dai_name = "wm8804-spdif",
++ .platform_name = "bcm2708-i2s.0",
++ .codec_name = "wm8804.1-003b",
++ .dai_fmt = SND_SOC_DAIFMT_I2S |
++ SND_SOC_DAIFMT_NB_NF |
++ SND_SOC_DAIFMT_CBM_CFM,
++ .ops = &snd_allo_digione_ops,
++ .init = snd_allo_digione_init,
++},
++};
++
++/* audio machine driver */
++static struct snd_soc_card snd_allo_digione = {
++ .name = "snd_allo_digione",
++ .driver_name = "AlloDigiOne",
++ .owner = THIS_MODULE,
++ .dai_link = snd_allo_digione_dai,
++ .num_links = ARRAY_SIZE(snd_allo_digione_dai),
++};
++
++static int snd_allo_digione_probe(struct platform_device *pdev)
++{
++ int ret = 0;
++
++ snd_allo_digione.dev = &pdev->dev;
++
++ if (pdev->dev.of_node) {
++ struct device_node *i2s_node;
++ struct snd_soc_dai_link *dai = &snd_allo_digione_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;
++ }
++
++ snd_allo_clk44gpio =
++ devm_gpiod_get(&pdev->dev, "clock44", GPIOD_OUT_LOW);
++ if (IS_ERR(snd_allo_clk44gpio))
++ dev_err(&pdev->dev, "devm_gpiod_get() failed\n");
++
++ snd_allo_clk48gpio =
++ devm_gpiod_get(&pdev->dev, "clock48", GPIOD_OUT_LOW);
++ if (IS_ERR(snd_allo_clk48gpio))
++ dev_err(&pdev->dev, "devm_gpiod_get() failed\n");
++ }
++
++ ret = snd_soc_register_card(&snd_allo_digione);
++ if (ret && ret != -EPROBE_DEFER)
++ dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
++ ret);
++
++ return ret;
++}
++
++static int snd_allo_digione_remove(struct platform_device *pdev)
++{
++ return snd_soc_unregister_card(&snd_allo_digione);
++}
++
++static const struct of_device_id snd_allo_digione_of_match[] = {
++ { .compatible = "allo,allo-digione", },
++ {},
++};
++MODULE_DEVICE_TABLE(of, snd_allo_digione_of_match);
++
++static struct platform_driver snd_allo_digione_driver = {
++ .driver = {
++ .name = "snd-allo-digione",
++ .owner = THIS_MODULE,
++ .of_match_table = snd_allo_digione_of_match,
++ },
++ .probe = snd_allo_digione_probe,
++ .remove = snd_allo_digione_remove,
++};
++
++module_platform_driver(snd_allo_digione_driver);
++
++MODULE_AUTHOR("Baswaraj <jaikumar@cem-solutions.net>");
++MODULE_DESCRIPTION("ASoC Driver for Allo DigiOne");
++MODULE_LICENSE("GPL v2");
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-05 04:21:20 +0000