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https://git.openwrt.org/openwrt/openwrt.git
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8299d1f057
Rebased RPi foundation patches on linux 5.10.59, removed applied and reverted patches, wireless patches and defconfig patches. bcm2708: boot tested on RPi B+ v1.2 bcm2709: boot tested on RPi 4B v1.1 4G bcm2711: boot tested on RPi 4B v1.1 4G Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
145 lines
4.1 KiB
Diff
145 lines
4.1 KiB
Diff
From 4951e0d22b58566678a16d53bf06851e1b63eeff Mon Sep 17 00:00:00 2001
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From: David Knell <david.knell@gmail.com>
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Date: Mon, 8 Feb 2021 03:35:15 +0000
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Subject: [PATCH] Added PiFi-Mini to rpi-simple-soundcard.c
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Signed-off-by: David Knell <david.knell@gmail.com>
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---
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sound/soc/bcm/rpi-simple-soundcard.c | 94 +++++++++++++++++++++++++---
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1 file changed, 87 insertions(+), 7 deletions(-)
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--- a/sound/soc/bcm/rpi-simple-soundcard.c
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+++ b/sound/soc/bcm/rpi-simple-soundcard.c
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@@ -32,6 +32,7 @@
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#include <linux/module.h>
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#include <linux/platform_device.h>
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+#include <linux/gpio/consumer.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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@@ -45,6 +46,13 @@ struct snd_rpi_simple_drvdata {
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unsigned int fixed_bclk_ratio;
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};
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+static struct snd_soc_card snd_rpi_simple = {
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+ .driver_name = "RPi-simple",
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+ .owner = THIS_MODULE,
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+ .dai_link = NULL,
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+ .num_links = 1, /* Only a single DAI supported at the moment */
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+};
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+
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static int snd_rpi_simple_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct snd_rpi_simple_drvdata *drvdata =
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@@ -58,6 +66,60 @@ static int snd_rpi_simple_init(struct sn
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return 0;
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}
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+static int pifi_mini_210_init(struct snd_soc_pcm_runtime *rtd)
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+{
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+ struct snd_soc_component *dac;
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+ struct gpio_desc *pdn_gpio, *rst_gpio;
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+ struct snd_soc_dai *codec_dai;
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+ int ret;
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+
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+ snd_rpi_simple_init(rtd);
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+ codec_dai = asoc_rtd_to_codec(rtd, 0);
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+
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+ dac = codec_dai[0].component;
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+
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+ pdn_gpio = devm_gpiod_get_optional(snd_rpi_simple.dev, "pdn",
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+ GPIOD_OUT_LOW);
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+ if (IS_ERR(pdn_gpio)) {
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+ ret = PTR_ERR(pdn_gpio);
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+ dev_err(snd_rpi_simple.dev, "failed to get pdn gpio: %d\n", ret);
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+ return ret;
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+ }
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+
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+ rst_gpio = devm_gpiod_get_optional(snd_rpi_simple.dev, "rst",
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+ GPIOD_OUT_LOW);
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+ if (IS_ERR(rst_gpio)) {
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+ ret = PTR_ERR(rst_gpio);
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+ dev_err(snd_rpi_simple.dev, "failed to get rst gpio: %d\n", ret);
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+ return ret;
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+ }
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+
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+ // Set up cards - pulse power down and reset first, then
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+ // set up according to datasheet
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+ gpiod_set_value_cansleep(pdn_gpio, 1);
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+ gpiod_set_value_cansleep(rst_gpio, 1);
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+ usleep_range(1000, 10000);
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+ gpiod_set_value_cansleep(pdn_gpio, 0);
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+ usleep_range(20000, 30000);
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+ gpiod_set_value_cansleep(rst_gpio, 0);
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+ usleep_range(20000, 30000);
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+
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+ // Oscillator trim
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+ snd_soc_component_write(dac, 0x1b, 0);
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+ usleep_range(60000, 80000);
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+
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+ // MCLK at 64fs, sample rate 44.1 or 48kHz
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+ snd_soc_component_write(dac, 0x00, 0x60);
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+
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+ // Set up for BTL - AD/BD mode - AD is 0x00107772, BD is 0x00987772
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+ snd_soc_component_write(dac, 0x20, 0x00107772);
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+
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+ // End mute
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+ snd_soc_component_write(dac, 0x05, 0x00);
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+
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+ return 0;
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+}
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+
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static int snd_rpi_simple_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params)
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{
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@@ -255,6 +317,29 @@ static struct snd_rpi_simple_drvdata drv
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.fixed_bclk_ratio = 64,
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};
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+SND_SOC_DAILINK_DEFS(pifi_mini_210,
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+ DAILINK_COMP_ARRAY(COMP_EMPTY()),
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+ DAILINK_COMP_ARRAY(COMP_CODEC("tas571x.1-001a", "tas571x-hifi")),
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+ DAILINK_COMP_ARRAY(COMP_EMPTY()));
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+
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+static struct snd_soc_dai_link snd_pifi_mini_210_dai[] = {
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+ {
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+ .name = "PiFi Mini 210",
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+ .stream_name = "PiFi Mini 210 HiFi",
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+ .init = pifi_mini_210_init,
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+ .dai_fmt = SND_SOC_DAIFMT_I2S |
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+ SND_SOC_DAIFMT_NB_NF |
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+ SND_SOC_DAIFMT_CBS_CFS,
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+ SND_SOC_DAILINK_REG(pifi_mini_210),
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+ },
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+};
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+
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+static struct snd_rpi_simple_drvdata drvdata_pifi_mini_210 = {
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+ .card_name = "snd_pifi_mini_210",
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+ .dai = snd_pifi_mini_210_dai,
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+ .fixed_bclk_ratio = 64,
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+};
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+
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static const struct of_device_id snd_rpi_simple_of_match[] = {
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{ .compatible = "adi,adau1977-adc",
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.data = (void *) &drvdata_adau1977 },
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@@ -269,16 +354,11 @@ static const struct of_device_id snd_rpi
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{ .compatible = "rpi,rpi-dac", &drvdata_rpi_dac},
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{ .compatible = "merus,merus-amp",
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.data = (void *) &drvdata_merus_amp },
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+ { .compatible = "pifi,pifi-mini-210",
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+ .data = (void *) &drvdata_pifi_mini_210 },
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{},
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};
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-static struct snd_soc_card snd_rpi_simple = {
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- .driver_name = "RPi-simple",
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- .owner = THIS_MODULE,
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- .dai_link = NULL,
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- .num_links = 1, /* Only a single DAI supported at the moment */
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-};
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-
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static int snd_rpi_simple_probe(struct platform_device *pdev)
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{
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int ret = 0;
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