diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.10/950-0467-Added-PiFi-Mini-to-rpi-simple-soundcard.c.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.10/950-0467-Added-PiFi-Mini-to-rpi-simple-soundcard.c.patch | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.10/950-0467-Added-PiFi-Mini-to-rpi-simple-soundcard.c.patch b/target/linux/bcm27xx/patches-5.10/950-0467-Added-PiFi-Mini-to-rpi-simple-soundcard.c.patch new file mode 100644 index 0000000000..a74bc8c966 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.10/950-0467-Added-PiFi-Mini-to-rpi-simple-soundcard.c.patch @@ -0,0 +1,144 @@ +From 4951e0d22b58566678a16d53bf06851e1b63eeff Mon Sep 17 00:00:00 2001 +From: David Knell <david.knell@gmail.com> +Date: Mon, 8 Feb 2021 03:35:15 +0000 +Subject: [PATCH] Added PiFi-Mini to rpi-simple-soundcard.c + +Signed-off-by: David Knell <david.knell@gmail.com> +--- + sound/soc/bcm/rpi-simple-soundcard.c | 94 +++++++++++++++++++++++++--- + 1 file changed, 87 insertions(+), 7 deletions(-) + +--- a/sound/soc/bcm/rpi-simple-soundcard.c ++++ b/sound/soc/bcm/rpi-simple-soundcard.c +@@ -32,6 +32,7 @@ + + #include <linux/module.h> + #include <linux/platform_device.h> ++#include <linux/gpio/consumer.h> + + #include <sound/core.h> + #include <sound/pcm.h> +@@ -45,6 +46,13 @@ struct snd_rpi_simple_drvdata { + unsigned int fixed_bclk_ratio; + }; + ++static struct snd_soc_card snd_rpi_simple = { ++ .driver_name = "RPi-simple", ++ .owner = THIS_MODULE, ++ .dai_link = NULL, ++ .num_links = 1, /* Only a single DAI supported at the moment */ ++}; ++ + static int snd_rpi_simple_init(struct snd_soc_pcm_runtime *rtd) + { + struct snd_rpi_simple_drvdata *drvdata = +@@ -58,6 +66,60 @@ static int snd_rpi_simple_init(struct sn + return 0; + } + ++static int pifi_mini_210_init(struct snd_soc_pcm_runtime *rtd) ++{ ++ struct snd_soc_component *dac; ++ struct gpio_desc *pdn_gpio, *rst_gpio; ++ struct snd_soc_dai *codec_dai; ++ int ret; ++ ++ snd_rpi_simple_init(rtd); ++ codec_dai = asoc_rtd_to_codec(rtd, 0); ++ ++ dac = codec_dai[0].component; ++ ++ pdn_gpio = devm_gpiod_get_optional(snd_rpi_simple.dev, "pdn", ++ GPIOD_OUT_LOW); ++ if (IS_ERR(pdn_gpio)) { ++ ret = PTR_ERR(pdn_gpio); ++ dev_err(snd_rpi_simple.dev, "failed to get pdn gpio: %d\n", ret); ++ return ret; ++ } ++ ++ rst_gpio = devm_gpiod_get_optional(snd_rpi_simple.dev, "rst", ++ GPIOD_OUT_LOW); ++ if (IS_ERR(rst_gpio)) { ++ ret = PTR_ERR(rst_gpio); ++ dev_err(snd_rpi_simple.dev, "failed to get rst gpio: %d\n", ret); ++ return ret; ++ } ++ ++ // Set up cards - pulse power down and reset first, then ++ // set up according to datasheet ++ gpiod_set_value_cansleep(pdn_gpio, 1); ++ gpiod_set_value_cansleep(rst_gpio, 1); ++ usleep_range(1000, 10000); ++ gpiod_set_value_cansleep(pdn_gpio, 0); ++ usleep_range(20000, 30000); ++ gpiod_set_value_cansleep(rst_gpio, 0); ++ usleep_range(20000, 30000); ++ ++ // Oscillator trim ++ snd_soc_component_write(dac, 0x1b, 0); ++ usleep_range(60000, 80000); ++ ++ // MCLK at 64fs, sample rate 44.1 or 48kHz ++ snd_soc_component_write(dac, 0x00, 0x60); ++ ++ // Set up for BTL - AD/BD mode - AD is 0x00107772, BD is 0x00987772 ++ snd_soc_component_write(dac, 0x20, 0x00107772); ++ ++ // End mute ++ snd_soc_component_write(dac, 0x05, 0x00); ++ ++ return 0; ++} ++ + static int snd_rpi_simple_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) + { +@@ -255,6 +317,29 @@ static struct snd_rpi_simple_drvdata drv + .fixed_bclk_ratio = 64, + }; + ++SND_SOC_DAILINK_DEFS(pifi_mini_210, ++ DAILINK_COMP_ARRAY(COMP_EMPTY()), ++ DAILINK_COMP_ARRAY(COMP_CODEC("tas571x.1-001a", "tas571x-hifi")), ++ DAILINK_COMP_ARRAY(COMP_EMPTY())); ++ ++static struct snd_soc_dai_link snd_pifi_mini_210_dai[] = { ++ { ++ .name = "PiFi Mini 210", ++ .stream_name = "PiFi Mini 210 HiFi", ++ .init = pifi_mini_210_init, ++ .dai_fmt = SND_SOC_DAIFMT_I2S | ++ SND_SOC_DAIFMT_NB_NF | ++ SND_SOC_DAIFMT_CBS_CFS, ++ SND_SOC_DAILINK_REG(pifi_mini_210), ++ }, ++}; ++ ++static struct snd_rpi_simple_drvdata drvdata_pifi_mini_210 = { ++ .card_name = "snd_pifi_mini_210", ++ .dai = snd_pifi_mini_210_dai, ++ .fixed_bclk_ratio = 64, ++}; ++ + static const struct of_device_id snd_rpi_simple_of_match[] = { + { .compatible = "adi,adau1977-adc", + .data = (void *) &drvdata_adau1977 }, +@@ -269,16 +354,11 @@ static const struct of_device_id snd_rpi + { .compatible = "rpi,rpi-dac", &drvdata_rpi_dac}, + { .compatible = "merus,merus-amp", + .data = (void *) &drvdata_merus_amp }, ++ { .compatible = "pifi,pifi-mini-210", ++ .data = (void *) &drvdata_pifi_mini_210 }, + {}, + }; + +-static struct snd_soc_card snd_rpi_simple = { +- .driver_name = "RPi-simple", +- .owner = THIS_MODULE, +- .dai_link = NULL, +- .num_links = 1, /* Only a single DAI supported at the moment */ +-}; +- + static int snd_rpi_simple_probe(struct platform_device *pdev) + { + int ret = 0; |