diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-4.19/950-0070-Add-Support-for-JustBoom-Audio-boards.patch')
-rw-r--r-- | target/linux/bcm27xx/patches-4.19/950-0070-Add-Support-for-JustBoom-Audio-boards.patch | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/target/linux/bcm27xx/patches-4.19/950-0070-Add-Support-for-JustBoom-Audio-boards.patch b/target/linux/bcm27xx/patches-4.19/950-0070-Add-Support-for-JustBoom-Audio-boards.patch deleted file mode 100644 index 68957f35db..0000000000 --- a/target/linux/bcm27xx/patches-4.19/950-0070-Add-Support-for-JustBoom-Audio-boards.patch +++ /dev/null @@ -1,173 +0,0 @@ -From 0435c03e212129e384cd49b19fca7a55dbf1ec50 Mon Sep 17 00:00:00 2001 -From: Aaron Shaw <shawaj@gmail.com> -Date: Thu, 7 Apr 2016 21:26:21 +0100 -Subject: [PATCH] Add Support for JustBoom Audio boards - -justboom-dac: Adjust for ALSA API change - -As of 4.4, snd_soc_limit_volume now takes a struct snd_soc_card * -rather than a struct snd_soc_codec *. - -Signed-off-by: Phil Elwell <phil@raspberrypi.org> - -ASoC: justboom-dac: fix S24_LE format - -Remove set_bclk_ratio call so 24-bit data is transmitted in -24 bclk cycles. - -Also remove hw_params as it's no longer needed. - -Signed-off-by: Matthias Reichl <hias@horus.com> ---- - sound/soc/bcm/justboom-dac.c | 145 +++++++++++++++++++++++++++++++++++ - 1 file changed, 145 insertions(+) - create mode 100644 sound/soc/bcm/justboom-dac.c - ---- /dev/null -+++ b/sound/soc/bcm/justboom-dac.c -@@ -0,0 +1,145 @@ -+/* -+ * ASoC Driver for JustBoom DAC Raspberry Pi HAT Sound Card -+ * -+ * Author: Milan Neskovic -+ * Copyright 2016 -+ * 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 "../codecs/pcm512x.h" -+ -+static bool digital_gain_0db_limit = true; -+ -+static int snd_rpi_justboom_dac_init(struct snd_soc_pcm_runtime *rtd) -+{ -+ struct snd_soc_component *component = rtd->codec_dai->component; -+ snd_soc_component_update_bits(component, PCM512x_GPIO_EN, 0x08, 0x08); -+ snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_4, 0xf, 0x02); -+ snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08,0x08); -+ -+ if (digital_gain_0db_limit) -+ { -+ int ret; -+ struct snd_soc_card *card = rtd->card; -+ -+ ret = snd_soc_limit_volume(card, "Digital Playback Volume", 207); -+ if (ret < 0) -+ dev_warn(card->dev, "Failed to set volume limit: %d\n", ret); -+ } -+ -+ return 0; -+} -+ -+static int snd_rpi_justboom_dac_startup(struct snd_pcm_substream *substream) { -+ struct snd_soc_pcm_runtime *rtd = substream->private_data; -+ struct snd_soc_component *component = rtd->codec_dai->component; -+ snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08,0x08); -+ return 0; -+} -+ -+static void snd_rpi_justboom_dac_shutdown(struct snd_pcm_substream *substream) { -+ struct snd_soc_pcm_runtime *rtd = substream->private_data; -+ struct snd_soc_component *component = rtd->codec_dai->component; -+ snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08,0x00); -+} -+ -+/* machine stream operations */ -+static struct snd_soc_ops snd_rpi_justboom_dac_ops = { -+ .startup = snd_rpi_justboom_dac_startup, -+ .shutdown = snd_rpi_justboom_dac_shutdown, -+}; -+ -+static struct snd_soc_dai_link snd_rpi_justboom_dac_dai[] = { -+{ -+ .name = "JustBoom DAC", -+ .stream_name = "JustBoom DAC HiFi", -+ .cpu_dai_name = "bcm2708-i2s.0", -+ .codec_dai_name = "pcm512x-hifi", -+ .platform_name = "bcm2708-i2s.0", -+ .codec_name = "pcm512x.1-004d", -+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | -+ SND_SOC_DAIFMT_CBS_CFS, -+ .ops = &snd_rpi_justboom_dac_ops, -+ .init = snd_rpi_justboom_dac_init, -+}, -+}; -+ -+/* audio machine driver */ -+static struct snd_soc_card snd_rpi_justboom_dac = { -+ .name = "snd_rpi_justboom_dac", -+ .driver_name = "JustBoomDac", -+ .owner = THIS_MODULE, -+ .dai_link = snd_rpi_justboom_dac_dai, -+ .num_links = ARRAY_SIZE(snd_rpi_justboom_dac_dai), -+}; -+ -+static int snd_rpi_justboom_dac_probe(struct platform_device *pdev) -+{ -+ int ret = 0; -+ -+ snd_rpi_justboom_dac.dev = &pdev->dev; -+ -+ if (pdev->dev.of_node) { -+ struct device_node *i2s_node; -+ struct snd_soc_dai_link *dai = &snd_rpi_justboom_dac_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; -+ } -+ -+ digital_gain_0db_limit = !of_property_read_bool( -+ pdev->dev.of_node, "justboom,24db_digital_gain"); -+ } -+ -+ ret = devm_snd_soc_register_card(&pdev->dev, &snd_rpi_justboom_dac); -+ if (ret && ret != -EPROBE_DEFER) -+ dev_err(&pdev->dev, -+ "snd_soc_register_card() failed: %d\n", ret); -+ -+ return ret; -+} -+ -+static const struct of_device_id snd_rpi_justboom_dac_of_match[] = { -+ { .compatible = "justboom,justboom-dac", }, -+ {}, -+}; -+MODULE_DEVICE_TABLE(of, snd_rpi_justboom_dac_of_match); -+ -+static struct platform_driver snd_rpi_justboom_dac_driver = { -+ .driver = { -+ .name = "snd-rpi-justboom-dac", -+ .owner = THIS_MODULE, -+ .of_match_table = snd_rpi_justboom_dac_of_match, -+ }, -+ .probe = snd_rpi_justboom_dac_probe, -+}; -+ -+module_platform_driver(snd_rpi_justboom_dac_driver); -+ -+MODULE_AUTHOR("Milan Neskovic <info@justboom.co>"); -+MODULE_DESCRIPTION("ASoC Driver for JustBoom PI DAC HAT Sound Card"); -+MODULE_LICENSE("GPL v2"); |