From 9a0d5113ac0ee513224ca2e5011b3a566de16207 Mon Sep 17 00:00:00 2001 From: Thomas Petazzoni Date: Thu, 30 Jan 2014 18:14:06 +0100 Subject: [PATCH 1/2] ASoC: kirkwood: enable Kirkwood driver for mvebu platforms The audio unit found in the Armada 370 SoC is similar to the one used in the Marvell Kirkwood and Marvell Dove SoCs. Therefore, this commit allows the Kirkwood audio driver to be built on mvebu platforms, and adds an additional compatible string to identify the Armada 370 variant of the audio unit. Signed-off-by: Thomas Petazzoni Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/sound/mvebu-audio.txt | 1 + sound/soc/kirkwood/Kconfig | 2 +- sound/soc/kirkwood/kirkwood-i2s.c | 1 + 3 files changed, 3 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/sound/mvebu-audio.txt b/Documentation/devicetree/bindings/sound/mvebu-audio.txt index f0062c5871b4..cb8c07c81ce4 100644 --- a/Documentation/devicetree/bindings/sound/mvebu-audio.txt +++ b/Documentation/devicetree/bindings/sound/mvebu-audio.txt @@ -5,6 +5,7 @@ Required properties: - compatible: "marvell,kirkwood-audio" for Kirkwood platforms "marvell,dove-audio" for Dove platforms + "marvell,armada370-audio" for Armada 370 platforms - reg: physical base address of the controller and length of memory mapped region. diff --git a/sound/soc/kirkwood/Kconfig b/sound/soc/kirkwood/Kconfig index 78ed4a42ad21..764a0ef6b268 100644 --- a/sound/soc/kirkwood/Kconfig +++ b/sound/soc/kirkwood/Kconfig @@ -1,6 +1,6 @@ config SND_KIRKWOOD_SOC tristate "SoC Audio for the Marvell Kirkwood and Dove chips" - depends on ARCH_KIRKWOOD || ARCH_DOVE || COMPILE_TEST + depends on ARCH_KIRKWOOD || ARCH_DOVE || ARCH_MVEBU || COMPILE_TEST help Say Y or M if you want to add support for codecs attached to the Kirkwood I2S interface. You will also need to select the diff --git a/sound/soc/kirkwood/kirkwood-i2s.c b/sound/soc/kirkwood/kirkwood-i2s.c index 3920a5e8125f..9f842222e798 100644 --- a/sound/soc/kirkwood/kirkwood-i2s.c +++ b/sound/soc/kirkwood/kirkwood-i2s.c @@ -633,6 +633,7 @@ static int kirkwood_i2s_dev_remove(struct platform_device *pdev) static struct of_device_id mvebu_audio_of_match[] = { { .compatible = "marvell,kirkwood-audio" }, { .compatible = "marvell,dove-audio" }, + { .compatible = "marvell,armada370-audio" }, { } }; MODULE_DEVICE_TABLE(of, mvebu_audio_of_match); From 74d04c3efbc4f10990e5c4218ad3f65bfdcf3c75 Mon Sep 17 00:00:00 2001 From: Thomas Petazzoni Date: Wed, 12 Feb 2014 18:20:56 +0100 Subject: [PATCH 2/2] sound: ASoC: add ASoC board driver for Armada 370 DB This commit adds a simple ASoC board driver fo the Armada 370 Development Board, which connects the audio unit of the Armada 370 SoC to the I2C-based CS42L51. For now, only the analog audio input and output through the CS42L51 are supported, but a followup patch adds S/PDIF support to this driver. Signed-off-by: Thomas Petazzoni Signed-off-by: Mark Brown --- .../bindings/sound/armada-370db-audio.txt | 24 ++++ sound/soc/kirkwood/Kconfig | 8 ++ sound/soc/kirkwood/Makefile | 2 + sound/soc/kirkwood/armada-370-db.c | 120 ++++++++++++++++++ 4 files changed, 154 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/armada-370db-audio.txt create mode 100644 sound/soc/kirkwood/armada-370-db.c diff --git a/Documentation/devicetree/bindings/sound/armada-370db-audio.txt b/Documentation/devicetree/bindings/sound/armada-370db-audio.txt new file mode 100644 index 000000000000..3893b4d15a20 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/armada-370db-audio.txt @@ -0,0 +1,24 @@ +Device Tree bindings for the Armada 370 DB audio +================================================ + +These Device Tree bindings are used to describe the audio complex +found on the Armada 370 DB platform. + +Mandatory properties: + + * compatible: must be "marvell,a370db-audio" + + * marvell,audio-controller: a phandle that points to the audio + controller of the Armada 370 SoC. + + * marvell,audio-codec: a phandle that points to the analog audio + codec connected to the Armada 370 SoC. + +Example: + + sound { + compatible = "marvell,a370db-audio"; + marvell,audio-controller = <&audio_controller>; + marvell,audio-codec = <&audio_codec>; + status = "okay"; + }; diff --git a/sound/soc/kirkwood/Kconfig b/sound/soc/kirkwood/Kconfig index 764a0ef6b268..2dc3ecf34801 100644 --- a/sound/soc/kirkwood/Kconfig +++ b/sound/soc/kirkwood/Kconfig @@ -6,6 +6,14 @@ config SND_KIRKWOOD_SOC the Kirkwood I2S interface. You will also need to select the audio interfaces to support below. +config SND_KIRKWOOD_SOC_ARMADA370_DB + tristate "SoC Audio support for Armada 370 DB" + depends on SND_KIRKWOOD_SOC && (ARCH_MVEBU || COMPILE_TEST) && I2C + select SND_SOC_CS42L51 + help + Say Y if you want to add support for SoC audio on + the Armada 370 Development Board. + config SND_KIRKWOOD_SOC_OPENRD tristate "SoC Audio support for Kirkwood Openrd Client" depends on SND_KIRKWOOD_SOC && (MACH_OPENRD_CLIENT || MACH_OPENRD_ULTIMATE || COMPILE_TEST) diff --git a/sound/soc/kirkwood/Makefile b/sound/soc/kirkwood/Makefile index 9e781385cb88..7c1d8fe09e6b 100644 --- a/sound/soc/kirkwood/Makefile +++ b/sound/soc/kirkwood/Makefile @@ -4,6 +4,8 @@ obj-$(CONFIG_SND_KIRKWOOD_SOC) += snd-soc-kirkwood.o snd-soc-openrd-objs := kirkwood-openrd.o snd-soc-t5325-objs := kirkwood-t5325.o +snd-soc-armada-370-db-objs := armada-370-db.o +obj-$(CONFIG_SND_KIRKWOOD_SOC_ARMADA370_DB) += snd-soc-armada-370-db.o obj-$(CONFIG_SND_KIRKWOOD_SOC_OPENRD) += snd-soc-openrd.o obj-$(CONFIG_SND_KIRKWOOD_SOC_T5325) += snd-soc-t5325.o diff --git a/sound/soc/kirkwood/armada-370-db.c b/sound/soc/kirkwood/armada-370-db.c new file mode 100644 index 000000000000..977639b3ffde --- /dev/null +++ b/sound/soc/kirkwood/armada-370-db.c @@ -0,0 +1,120 @@ +/* + * Copyright (C) 2014 Marvell + * + * Thomas Petazzoni + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of the + * License, or (at your option) any later version. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include "../codecs/cs42l51.h" + +static int a370db_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + unsigned int freq; + + switch (params_rate(params)) { + default: + case 44100: + freq = 11289600; + break; + case 48000: + freq = 12288000; + break; + case 96000: + freq = 24576000; + break; + } + + return snd_soc_dai_set_sysclk(codec_dai, 0, freq, SND_SOC_CLOCK_IN); +} + +static struct snd_soc_ops a370db_ops = { + .hw_params = a370db_hw_params, +}; + +static const struct snd_soc_dapm_widget a370db_dapm_widgets[] = { + SND_SOC_DAPM_HP("Out Jack", NULL), + SND_SOC_DAPM_LINE("In Jack", NULL), +}; + +static const struct snd_soc_dapm_route a370db_route[] = { + { "Out Jack", NULL, "HPL" }, + { "Out Jack", NULL, "HPR" }, + { "AIN1L", NULL, "In Jack" }, + { "AIN1L", NULL, "In Jack" }, +}; + +static struct snd_soc_dai_link a370db_dai[] = { +{ + .name = "CS42L51", + .stream_name = "analog", + .cpu_dai_name = "i2s", + .codec_dai_name = "cs42l51-hifi", + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS, + .ops = &a370db_ops, +}, +}; + +static struct snd_soc_card a370db = { + .name = "a370db", + .owner = THIS_MODULE, + .dai_link = a370db_dai, + .num_links = ARRAY_SIZE(a370db_dai), + .dapm_widgets = a370db_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(a370db_dapm_widgets), + .dapm_routes = a370db_route, + .num_dapm_routes = ARRAY_SIZE(a370db_route), +}; + +static int a370db_probe(struct platform_device *pdev) +{ + struct snd_soc_card *card = &a370db; + + card->dev = &pdev->dev; + + a370db_dai[0].cpu_of_node = + of_parse_phandle(pdev->dev.of_node, + "marvell,audio-controller", 0); + a370db_dai[0].platform_of_node = a370db_dai[0].cpu_of_node; + + a370db_dai[0].codec_of_node = + of_parse_phandle(pdev->dev.of_node, + "marvell,audio-codec", 0); + + return devm_snd_soc_register_card(card->dev, card); +} + +static const struct of_device_id a370db_dt_ids[] = { + { .compatible = "marvell,a370db-audio" }, + { }, +}; + +static struct platform_driver a370db_driver = { + .driver = { + .name = "a370db-audio", + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(a370db_dt_ids), + }, + .probe = a370db_probe, +}; + +module_platform_driver(a370db_driver); + +MODULE_AUTHOR("Thomas Petazzoni "); +MODULE_DESCRIPTION("ALSA SoC a370db audio client"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:a370db-audio");