diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-4.19/950-0079-sound-Support-for-Dion-Audio-LOCO-V2-DAC-AMP-HAT.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-4.19/950-0079-sound-Support-for-Dion-Audio-LOCO-V2-DAC-AMP-HAT.patch | 138 |
1 files changed, 0 insertions, 138 deletions
diff --git a/target/linux/bcm27xx/patches-4.19/950-0079-sound-Support-for-Dion-Audio-LOCO-V2-DAC-AMP-HAT.patch b/target/linux/bcm27xx/patches-4.19/950-0079-sound-Support-for-Dion-Audio-LOCO-V2-DAC-AMP-HAT.patch deleted file mode 100644 index 046fe436bc..0000000000 --- a/target/linux/bcm27xx/patches-4.19/950-0079-sound-Support-for-Dion-Audio-LOCO-V2-DAC-AMP-HAT.patch +++ /dev/null @@ -1,138 +0,0 @@ -From 858a3bbbf274ffcecca558f66aaab146c11fdfe9 Mon Sep 17 00:00:00 2001 -From: Miquel <miquelblauw@hotmail.com> -Date: Fri, 24 Feb 2017 20:51:06 +0100 -Subject: [PATCH] sound: Support for Dion Audio LOCO-V2 DAC-AMP HAT - -Signed-off-by: Miquel Blauw <info@dionaudio.nl> - -ASoC: dionaudio_loco-v2: fix S24_LE format - -Remove set_bclk_ratio call so 24-bit data is transmitted in -24 bclk cycles. - -Also remove hw_params and ops as they are no longer needed. - -Signed-off-by: Matthias Reichl <hias@horus.com> ---- - sound/soc/bcm/dionaudio_loco-v2.c | 115 ++++++++++++++++++++++++++++++ - 1 file changed, 115 insertions(+) - create mode 100644 sound/soc/bcm/dionaudio_loco-v2.c - ---- /dev/null -+++ b/sound/soc/bcm/dionaudio_loco-v2.c -@@ -0,0 +1,115 @@ -+/* -+ * ASoC Driver for Dion Audio LOCO-V2 DAC-AMP -+ * -+ * Author: Miquel Blauw <info@dionaudio.nl> -+ * Copyright 2017 -+ * -+ * Based on the software of the RPi-DAC writen by Florian Meier -+ * -+ * 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> -+ -+static bool digital_gain_0db_limit = true; -+ -+static int snd_rpi_dionaudio_loco_v2_init(struct snd_soc_pcm_runtime *rtd) -+{ -+ 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 struct snd_soc_dai_link snd_rpi_dionaudio_loco_v2_dai[] = { -+{ -+ .name = "DionAudio LOCO-V2", -+ .stream_name = "DionAudio LOCO-V2 DAC-AMP", -+ .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, -+ .init = snd_rpi_dionaudio_loco_v2_init, -+},}; -+ -+/* audio machine driver */ -+static struct snd_soc_card snd_rpi_dionaudio_loco_v2 = { -+ .name = "Dion Audio LOCO-V2", -+ .dai_link = snd_rpi_dionaudio_loco_v2_dai, -+ .num_links = ARRAY_SIZE(snd_rpi_dionaudio_loco_v2_dai), -+}; -+ -+static int snd_rpi_dionaudio_loco_v2_probe(struct platform_device *pdev) -+{ -+ int ret = 0; -+ -+ snd_rpi_dionaudio_loco_v2.dev = &pdev->dev; -+ -+ if (pdev->dev.of_node) { -+ struct device_node *i2s_node; -+ struct snd_soc_dai_link *dai = -+ &snd_rpi_dionaudio_loco_v2_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, "dionaudio,24db_digital_gain"); -+ } -+ -+ ret = devm_snd_soc_register_card(&pdev->dev, &snd_rpi_dionaudio_loco_v2); -+ if (ret) -+ dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", -+ ret); -+ -+ return ret; -+} -+ -+static const struct of_device_id dionaudio_of_match[] = { -+ { .compatible = "dionaudio,dionaudio-loco-v2", }, -+ {}, -+}; -+MODULE_DEVICE_TABLE(of, dionaudio_of_match); -+ -+static struct platform_driver snd_rpi_dionaudio_loco_v2_driver = { -+ .driver = { -+ .name = "snd-rpi-dionaudio-loco-v2", -+ .owner = THIS_MODULE, -+ .of_match_table = dionaudio_of_match, -+ }, -+ .probe = snd_rpi_dionaudio_loco_v2_probe, -+}; -+ -+module_platform_driver(snd_rpi_dionaudio_loco_v2_driver); -+ -+MODULE_AUTHOR("Miquel Blauw <info@dionaudio.nl>"); -+MODULE_DESCRIPTION("ASoC Driver for DionAudio LOCO-V2"); -+MODULE_LICENSE("GPL v2"); |