diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-4.19/950-0074-Allo-Piano-DAC-boards-Initial-2-channel-stereo-suppo.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-4.19/950-0074-Allo-Piano-DAC-boards-Initial-2-channel-stereo-suppo.patch | 157 |
1 files changed, 0 insertions, 157 deletions
diff --git a/target/linux/bcm27xx/patches-4.19/950-0074-Allo-Piano-DAC-boards-Initial-2-channel-stereo-suppo.patch b/target/linux/bcm27xx/patches-4.19/950-0074-Allo-Piano-DAC-boards-Initial-2-channel-stereo-suppo.patch deleted file mode 100644 index fa1d346702..0000000000 --- a/target/linux/bcm27xx/patches-4.19/950-0074-Allo-Piano-DAC-boards-Initial-2-channel-stereo-suppo.patch +++ /dev/null @@ -1,157 +0,0 @@ -From 4c4b1a565322382b927927d6066735c7cd1ea188 Mon Sep 17 00:00:00 2001 -From: Clive Messer <clive.m.messer@gmail.com> -Date: Mon, 19 Sep 2016 14:01:04 +0100 -Subject: [PATCH] Allo Piano DAC boards: Initial 2 channel (stereo) - support (#1645) - -Add initial 2 channel (stereo) support for Allo Piano DAC (2.0/2.1) boards, -using allo-piano-dac-pcm512x-audio overlay and allo-piano-dac ALSA ASoC -machine driver. - -NB. The initial support is 2 channel (stereo) ONLY! -(The Piano DAC 2.1 will only support 2 channel (stereo) left/right output, - pending an update to the upstream pcm512x codec driver, which will have - to be submitted via upstream. With the initial downstream support, - provided by this patch, the Piano DAC 2.1 subwoofer outputs will - not function.) - -Signed-off-by: Baswaraj K <jaikumar@cem-solutions.net> -Signed-off-by: Clive Messer <clive.messer@digitaldreamtime.co.uk> -Tested-by: Clive Messer <clive.messer@digitaldreamtime.co.uk> - -ASoC: allo-piano-dac: 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/allo-piano-dac.c | 120 +++++++++++++++++++++++++++++++++ - 1 file changed, 120 insertions(+) - create mode 100644 sound/soc/bcm/allo-piano-dac.c - ---- /dev/null -+++ b/sound/soc/bcm/allo-piano-dac.c -@@ -0,0 +1,120 @@ -+/* -+ * ALSA ASoC Machine Driver for Allo Piano DAC -+ * -+ * Author: Baswaraj K <jaikumar@cem-solutions.net> -+ * 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> -+ -+static bool digital_gain_0db_limit = true; -+ -+static int snd_allo_piano_dac_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_allo_piano_dac_dai[] = { -+{ -+ .name = "Piano DAC", -+ .stream_name = "Piano DAC HiFi", -+ .cpu_dai_name = "bcm2708-i2s.0", -+ .codec_dai_name = "pcm512x-hifi", -+ .platform_name = "bcm2708-i2s.0", -+ .codec_name = "pcm512x.1-004c", -+ .dai_fmt = SND_SOC_DAIFMT_I2S | -+ SND_SOC_DAIFMT_NB_NF | -+ SND_SOC_DAIFMT_CBS_CFS, -+ .init = snd_allo_piano_dac_init, -+}, -+}; -+ -+/* audio machine driver */ -+static struct snd_soc_card snd_allo_piano_dac = { -+ .name = "PianoDAC", -+ .owner = THIS_MODULE, -+ .dai_link = snd_allo_piano_dac_dai, -+ .num_links = ARRAY_SIZE(snd_allo_piano_dac_dai), -+}; -+ -+static int snd_allo_piano_dac_probe(struct platform_device *pdev) -+{ -+ int ret = 0; -+ -+ snd_allo_piano_dac.dev = &pdev->dev; -+ -+ if (pdev->dev.of_node) { -+ struct device_node *i2s_node; -+ struct snd_soc_dai_link *dai; -+ -+ dai = &snd_allo_piano_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, "allo,24db_digital_gain"); -+ } -+ -+ ret = devm_snd_soc_register_card(&pdev->dev, &snd_allo_piano_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_allo_piano_dac_of_match[] = { -+ { .compatible = "allo,piano-dac", }, -+ { /* sentinel */ }, -+}; -+MODULE_DEVICE_TABLE(of, snd_allo_piano_dac_of_match); -+ -+static struct platform_driver snd_allo_piano_dac_driver = { -+ .driver = { -+ .name = "snd-allo-piano-dac", -+ .owner = THIS_MODULE, -+ .of_match_table = snd_allo_piano_dac_of_match, -+ }, -+ .probe = snd_allo_piano_dac_probe, -+}; -+ -+module_platform_driver(snd_allo_piano_dac_driver); -+ -+MODULE_AUTHOR("Baswaraj K <jaikumar@cem-solutions.net>"); -+MODULE_DESCRIPTION("ALSA ASoC Machine Driver for Allo Piano DAC"); -+MODULE_LICENSE("GPL v2"); |