May 2016 - Alsa-devel - mailman.alsa-project.org

[alsa-devel] [PATCH]: ASoC: intel: make function stub static
by Randy Dunlap 24 May '16

24 May '16

From: Randy Dunlap <rdunlap(a)infradead.org> This function stub should have been 'static' in the original patch so that multiple uses of the header file (in different drivers) will not cause multiple function definitions. sound/soc/intel/boards/built-in.o: In function `sst_acpi_find_name_from_hid': (.text+0x560): multiple definition of `sst_acpi_find_name_from_hid' sound/soc/intel/atom/built-in.o:(.text+0x10610): first defined here ../scripts/Makefile.build:369: recipe for target 'sound/soc/intel/built-in.o' failed Fixes: f17131a93f43: add function stub when ACPI is not enabled Signed-off-by: Randy Dunlap <rdunlap(a)infradead.org> Cc: Borislav Petkov <bp(a)alien8.de> Cc: Subhransu S. Prusty <subhransu.s.prusty(a)intel.com> Cc: Jie Yang <yang.jie(a)linux.intel.com> Cc: alsa-devel(a)alsa-project.org --- sound/soc/intel/common/sst-acpi.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- linux-next-20160520.orig/sound/soc/intel/common/sst-acpi.h +++ linux-next-20160520/sound/soc/intel/common/sst-acpi.h @@ -20,7 +20,7 @@ #if IS_ENABLED(CONFIG_ACPI) const char *sst_acpi_find_name_from_hid(const u8 hid[ACPI_ID_LEN]); #else -inline const char *sst_acpi_find_name_from_hid(const u8 hid[ACPI_ID_LEN]) +static inline const char *sst_acpi_find_name_from_hid(const u8 hid[ACPI_ID_LEN]) { return NULL; }

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Re: [alsa-devel] Add support for ALC295
by Takashi Iwai 24 May '16

24 May '16

On Tue, 24 May 2016 10:53:37 +0200, Kailang wrote: > > Hi Takashi, > > We have a new codec ALC295 that is brother and sister with ALC225. > Attach is the support patch. Applied now. Thanks. Takashi

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[alsa-devel] [PATCH] MAINTAINERS: ASoC: samsung: Add Sylwester Nawrocki and Krzysztof Kozlowski
by Krzysztof Kozlowski 24 May '16

24 May '16

Extend maintainer entry for Samsung SoC sound drivers with Krzysztof Kozlowski and Sylwester Nawrocki. The file pattern is duplicated in main Exynos ARM section so remove it from there. Cc: Kukjin Kim <kgene(a)kernel.org> Cc: Sangbeom Kim <sbkim73(a)samsung.com> Cc: Sylwester Nawrocki <s.nawrocki(a)samsung.com> Cc: Liam Girdwood <lgirdwood(a)gmail.com> Cc: Mark Brown <broonie(a)kernel.org> Cc: alsa-devel(a)alsa-project.org Cc: linux-samsung-soc(a)vger.kernel.org Signed-off-by: Krzysztof Kozlowski <k.kozlowski(a)samsung.com> --- MAINTAINERS | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/MAINTAINERS b/MAINTAINERS index 243c0811a4d8..f0f4ca58d264 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1603,7 +1603,6 @@ F: drivers/*/*/*s3c2410* F: drivers/memory/samsung/* F: drivers/soc/samsung/* F: drivers/spi/spi-s3c* -F: sound/soc/samsung/* F: Documentation/arm/Samsung/ F: Documentation/devicetree/bindings/arm/samsung/ F: Documentation/devicetree/bindings/sram/samsung-sram.txt @@ -9857,7 +9856,9 @@ S: Maintained F: drivers/platform/x86/samsung-laptop.c SAMSUNG AUDIO (ASoC) DRIVERS +M: Krzysztof Kozlowski <k.kozlowski(a)samsung.com> M: Sangbeom Kim <sbkim73(a)samsung.com> +M: Sylwester Nawrocki <s.nawrocki(a)samsung.com> L: alsa-devel(a)alsa-project.org (moderated for non-subscribers) S: Supported F: sound/soc/samsung/ -- 1.9.1

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[alsa-devel] [PATCH 0/2] ASoC: da7219: Convert driver to use generic FW functions
by Adam Thomson 24 May '16

24 May '16

This patch set converts the da7219 codec driver to use device/fwnode functions to access properties, instead of the DT only of_* functions, allowing ACPI to be used as well. The DT bindings for da7219 have a device node for the main codec properties, and a named child node (da7219_aad), which contains all of the accessory detection related properties for the device. ACPI also supports this kind of FW hierarchy (data only sub-nodes), but some support in the kernel needs to be added to take make use of this in driver code. The first patch adds functions to allow searching for a named child node of a device, for both DT and ACPI, and the second patch updates the codec driver to use the standard device/fwnode calls, including this new function. These changes are based on the v4.6 kernel. Adam Thomson (2): device property: Add function to search for named child of device ASoC: da7219: Convert driver to use generic device/fwnode functions drivers/base/property.c | 28 ++++++++++++ include/acpi/acpi_bus.h | 7 +++ include/linux/acpi.h | 6 +++ include/linux/property.h | 3 ++ sound/soc/codecs/da7219-aad.c | 103 +++++++++++++++++++++--------------------- sound/soc/codecs/da7219.c | 34 +++++++------- 6 files changed, 112 insertions(+), 69 deletions(-) -- 1.9.3

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[alsa-devel] [PATCH v2 1/2] ASoC: wm8985: add device tree binding for WM8985
by Petr Kulhavy 24 May '16

24 May '16

Add device tree binding for the WM8985 codec driver. Signed-off-by: Petr Kulhavy <petr(a)barix.com> Acked-by: Rob Herring <robh(a)kernel.org> --- v1: initial v2: no change Documentation/devicetree/bindings/sound/wm8985.txt | 36 ++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/wm8985.txt diff --git a/Documentation/devicetree/bindings/sound/wm8985.txt b/Documentation/devicetree/bindings/sound/wm8985.txt new file mode 100644 index 000000000000..788d64766257 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/wm8985.txt @@ -0,0 +1,36 @@ +Wolfson Microelectronics WM8985 and WM8758 audio codecs + +These devices support both I2C and SPI (configured with pin strapping +on the board). + +Required properties: + + - compatible : "wlf,wm8985" or "wlf,wm8758" + + - reg : the I2C address of the device for I2C, the chip select + number for SPI. + +Pins on the device for linking into audio routes: + + * LIN : left microphone pre-amp negative input + * LIP : left microphone pre-amp positive input + * RIN : right microphone pre-amp negative input + * RIP : right microphone pre-amp positive input + * L2 : left line input / secondary pre-amp positive input + * R2 : right line input / secondary pre-amp positive input + * AUXL : left auxiliary input (WM8985 only) + * AUXR : right auxiliary input (WM8985 only) + + * HPL : left headphone / line output (the LOUT1 pin) + * HPR : right headphone / line output (the ROUT1 pin) + * SPKL : left headphone / line output (the LOUT2 pin) + * SPKR : right headphone / line output (the ROUT2 pin) + * Mic Bias : microphone bias + + +Example: + +wm8758: audio-codec@1a { + compatible = "wlf,wm8758"; + reg = <0x1a>; +}; -- 1.9.1

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[alsa-devel] [PATCH v3 0/2] ASoC: wm8985: add support for WM8758
by Petr Kulhavy 24 May '16

24 May '16

The WM8758 chip is almost identical to WM8985 with the difference that it doesn't feature the AUX input. This patch set adds the WM8758 support into the WM8985 driver. Changes in v3: * merge the wm8985_xxx_snd_controls into wm8985_common_snd_controls and wm8985_specific_snd_controls in order to reduce the number of structures use the static initialization in snd_soc_codec_driver for the common part

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[alsa-devel] DPCM: skip DAPM_STREAM_STOP event to BE, if still used by other FE
by Chuang Eric 24 May '16

24 May '16

Hi, Let me illustrate the system first. FE1 -----+----> BE | FE2 -----+ When there is multi-FE stream to a single BE, the BE will receive SND_SOC_DAPM_STREAM_STOP if one of the FE shutdown. However, the BE is stilled used by another, this will let BE cpu_dai and codec_dai think they are inactive. The later power check will go wrong. I have check the latest linux version, and didn't find any related change. The following is my change to address this, and will re-send a formal patch if it's ok. diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 70e8088..9c2d159 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -163,6 +163,13 @@ int dpcm_dapm_stream_event(struct snd_soc_pcm_runtime *fe, int dir, dev_dbg(be->dev, "ASoC: BE %s event %d dir %d\n", be->dai_link->name, event, dir); + /* don't sent stop event if this BE is used by other FE */ + if (event == SND_SOC_DAPM_STREAM_STOP && + be->dpcm[dir].users >= 1) { + pr_warn("kc, %s(), be->dai_link->name %s skip stop event\n", __func__, be->dai_link->name); + continue; + } + snd_soc_dapm_stream_event(be, dir, event); } Sincerely, Kai Chieh

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[alsa-devel] DPCM: skip DAPM_STREAM_STOP event to BE, if still used by other FE
by srv_kaichieh.chaung 24 May '16

24 May '16

Hi, Let me illustrate the system first. FE1 -----+----> BE | FE2 -----+ When there is multi-FE stream to a single BE, the BE will receive SND_SOC_DAPM_STREAM_STOP if one of the FE shutdown. However, the BE is stilled used by another, this will let BE cpu_dai and codec_dai think they are inactive. The later power check will go wrong. I have check the latest linux version, and didn't find any related change. The following is my change to address this, and will re-send a formal patch if it's ok. diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 70e8088..9c2d159 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -163,6 +163,13 @@ int dpcm_dapm_stream_event(struct snd_soc_pcm_runtime *fe, int dir, dev_dbg(be->dev, "ASoC: BE %s event %d dir %d\n", be->dai_link->name, event, dir); + /* don't sent stop event if this BE is used by other FE */ + if (event == SND_SOC_DAPM_STREAM_STOP && + be->dpcm[dir].users >= 1) { + pr_warn("kc, %s(), be->dai_link->name %s skip stop event\n", __func__, be->dai_link->name); + continue; + } + snd_soc_dapm_stream_event(be, dir, event); } Sincerely, Kai Chieh

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[alsa-devel] [PATCH v2] ASoC: rockchip: Add machine driver for MAX98357A/RT5514/DA7219
by Xing Zheng 24 May '16

24 May '16

There are multi codec devices on the RK3399 platform, we can use this patch support and control these codecs. --- Changes in v2: Signed-off-by: Xing Zheng <zhengxing(a)rock-chips.com> .../sound/rockchip-max98357a-rt5514-da7219.txt | 15 + sound/soc/rockchip/Kconfig | 11 + sound/soc/rockchip/Makefile | 2 + .../rockchip/rockchip_max98357a_rt5514_da7219.c | 333 ++++++++++++++++++++ 4 files changed, 361 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/rockchip-max98357a-rt5514-da7219.txt create mode 100644 sound/soc/rockchip/rockchip_max98357a_rt5514_da7219.c diff --git a/Documentation/devicetree/bindings/sound/rockchip-max98357a-rt5514-da7219.txt b/Documentation/devicetree/bindings/sound/rockchip-max98357a-rt5514-da7219.txt new file mode 100644 index 0000000..5928384 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/rockchip-max98357a-rt5514-da7219.txt @@ -0,0 +1,15 @@ +ROCKCHIP with MAX98357A/RT5514/DA7219 codecs + +Required properties: +- compatible: "rockchip,rockchip-sound" +- rockchip,cpu: The phandle of the Rockchip I2S controller that's + connected to the codecs +- rockchip,codec: The phandle of the MAX98357A/RT5514/DA7219 codecs + +Example: + +sound { + compatible = "rockchip,rockchip-sound"; + rockchip,cpu = <&i2s0 &i2s0 &i2s1>; + rockchip,codec = <&max98357a &headsetcodec &codec>; +}; diff --git a/sound/soc/rockchip/Kconfig b/sound/soc/rockchip/Kconfig index f1e0c70..d02aa94 100644 --- a/sound/soc/rockchip/Kconfig +++ b/sound/soc/rockchip/Kconfig @@ -41,3 +41,14 @@ config SND_SOC_ROCKCHIP_RT5645 help Say Y or M here if you want to add support for SoC audio on Rockchip boards using the RT5645/RT5650 codec, such as Veyron. + +config SND_SOC_ROCKCHIP_MAX98357A_RT5514_DA7219 + tristate "ASoC support for Rockchip boards using the MAX98357A/RT5514/DA7219" + depends on SND_SOC_ROCKCHIP && GPIOLIB + select SND_SOC_ROCKCHIP_I2S + select SND_SOC_MAX98357A + select SND_SOC_RT5514 + select SND_SOC_DA7219 + help + Say Y or M here if you want to add support for SoC audio on Rockchip + boards using the MAX98357A/RT5514/DA7219. diff --git a/sound/soc/rockchip/Makefile b/sound/soc/rockchip/Makefile index c0bf560..ca97489 100644 --- a/sound/soc/rockchip/Makefile +++ b/sound/soc/rockchip/Makefile @@ -7,6 +7,8 @@ obj-$(CONFIG_SND_SOC_ROCKCHIP_SPDIF) += snd-soc-rockchip-spdif.o snd-soc-rockchip-max98090-objs := rockchip_max98090.o snd-soc-rockchip-rt5645-objs := rockchip_rt5645.o +snd-soc-rockchip-max98357a-rt5514-da7219-objs := rockchip_max98357a_rt5514_da7219.o obj-$(CONFIG_SND_SOC_ROCKCHIP_MAX98090) += snd-soc-rockchip-max98090.o obj-$(CONFIG_SND_SOC_ROCKCHIP_RT5645) += snd-soc-rockchip-rt5645.o +obj-$(CONFIG_SND_SOC_ROCKCHIP_MAX98357A_RT5514_DA7219) += snd-soc-rockchip-max98357a-rt5514-da7219.o diff --git a/sound/soc/rockchip/rockchip_max98357a_rt5514_da7219.c b/sound/soc/rockchip/rockchip_max98357a_rt5514_da7219.c new file mode 100644 index 0000000..818c47e --- /dev/null +++ b/sound/soc/rockchip/rockchip_max98357a_rt5514_da7219.c @@ -0,0 +1,333 @@ +/* + * Rockchip machine ASoC driver for boards using MAX98357A/RT5514/DA7219 + * + * Copyright (c) 2016, ROCKCHIP CORPORATION. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope 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. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <linux/gpio.h> +#include <linux/of_gpio.h> +#include <linux/delay.h> +#include <linux/spi/spi.h> +#include <sound/core.h> +#include <sound/jack.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include "rockchip_i2s.h" +#include "../codecs/da7219.h" +#include "../codecs/da7219-aad.h" +#include "../codecs/rt5514.h" + +#define DRV_NAME "rockchip-sound" + +#define SOUND_FS 256 + +static struct snd_soc_jack rockchip_sound_jack; + +static const struct snd_soc_dapm_widget rockchip_dapm_widgets[] = { + SND_SOC_DAPM_HP("Headphones", NULL), + SND_SOC_DAPM_SPK("Speakers", NULL), + SND_SOC_DAPM_MIC("Headset Mic", NULL), + SND_SOC_DAPM_MIC("Int Mic", NULL), +}; + +static const struct snd_soc_dapm_route rockchip_dapm_routes[] = { + /* Input Lines */ + {"MIC", NULL, "Headset Mic"}, + {"DMIC1L", NULL, "Int Mic"}, + {"DMIC1R", NULL, "Int Mic"}, + + /* Output Lines */ + {"Headphones", NULL, "HPL"}, + {"Headphones", NULL, "HPR"}, + {"Speakers", NULL, "Speakers"}, +}; + +static const struct snd_kcontrol_new rockchip_controls[] = { + SOC_DAPM_PIN_SWITCH("Headphones"), + SOC_DAPM_PIN_SWITCH("Speakers"), + SOC_DAPM_PIN_SWITCH("Headset Mic"), + SOC_DAPM_PIN_SWITCH("Int Mic"), +}; + +static int rockchip_sound_max98357a_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_dapm_context *dapm = &rtd->card->dapm; + unsigned int mclk; + int ret; + + /* max98357a supports these sample rates */ + switch (params_rate(params)) { + case 8000: + case 16000: + case 48000: + case 96000: + mclk = params_rate(params) * SOUND_FS; + break; + default: + dev_err(rtd->card->dev, "%s() doesn't support this sample rate: %d\n", + __func__, params_rate(params)); + return -EINVAL; + } + + ret = snd_soc_dai_set_sysclk(rtd->cpu_dai, 0, mclk, 0); + if (ret) { + dev_err(rtd->card->dev, "%s() error setting sysclk to %u: %d\n", + __func__, mclk, ret); + return ret; + } + + snd_soc_dapm_disable_pin(dapm, "Headphones"); + snd_soc_dapm_enable_pin(dapm, "Speakers"); + snd_soc_dapm_sync(dapm); + + return 0; +} + +static int rockchip_sound_rt5514_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 *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + unsigned int mclk; + int ret; + + mclk = params_rate(params) * SOUND_FS; + + ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk, + SND_SOC_CLOCK_OUT); + if (ret < 0) { + dev_err(rtd->card->dev, "Can't set cpu clock out %d\n", ret); + return ret; + } + + ret = snd_soc_dai_set_sysclk(codec_dai, RT5514_SCLK_S_MCLK, + mclk, SND_SOC_CLOCK_IN); + if (ret) { + dev_err(rtd->card->dev, "%s() error setting sysclk to %u: %d\n", + __func__, params_rate(params) * 512, ret); + return ret; + } + + return 0; +} + +static int rockchip_sound_da7219_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 *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *codec_dai = rtd->codec_dai; + struct snd_soc_dapm_context *dapm = &rtd->card->dapm; + int mclk, ret; + + /* in bypass mode, the mclk has to be one of the frequencies below */ + switch (params_rate(params)) { + case 8000: + case 16000: + case 24000: + case 32000: + case 48000: + case 64000: + case 96000: + mclk = 12288000; + break; + case 11025: + case 22050: + case 44100: + case 88200: + mclk = 11289600; + break; + default: + return -EINVAL; + } + + ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk, + SND_SOC_CLOCK_OUT); + if (ret < 0) { + dev_err(codec_dai->dev, "Can't set cpu clock out %d\n", ret); + return ret; + } + + ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk, + SND_SOC_CLOCK_IN); + if (ret < 0) { + dev_err(codec_dai->dev, "Can't set codec clock in %d\n", ret); + return ret; + } + + ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_MCLK, 0, 0); + if (ret < 0) { + dev_err(codec_dai->dev, "Can't set pll sysclk mclk %d\n", ret); + return ret; + } + + snd_soc_dapm_disable_pin(dapm, "Speakers"); + snd_soc_dapm_enable_pin(dapm, "Headphones"); + snd_soc_dapm_sync(dapm); + + return 0; +} + +static int rockchip_sound_da7219_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_codec *codec = rtd->codec_dais[0]->codec; + int ret; + + /* Enable Headset and 4 Buttons Jack detection */ + ret = snd_soc_card_jack_new(rtd->card, "Headset Jack", + SND_JACK_HEADSET | + SND_JACK_BTN_0 | SND_JACK_BTN_1 | + SND_JACK_BTN_2 | SND_JACK_BTN_3, + &rockchip_sound_jack, NULL, 0); + + if (ret) { + dev_err(rtd->card->dev, "New Headset Jack failed! (%d)\n", ret); + return ret; + } + + da7219_aad_jack_det(codec, &rockchip_sound_jack); + + return 0; +} + +static struct snd_soc_ops rockchip_sound_max98357a_ops = { + .hw_params = rockchip_sound_max98357a_hw_params, +}; + +static struct snd_soc_ops rockchip_sound_rt5514_ops = { + .hw_params = rockchip_sound_rt5514_hw_params, +}; + +static struct snd_soc_ops rockchip_sound_da7219_ops = { + .hw_params = rockchip_sound_da7219_hw_params, +}; + +enum { + DAILINK_MAX98357A, + DAILINK_RT5514, + DAILINK_DA7219, +}; + +static struct snd_soc_dai_link rockchip_dailinks[] = { + [DAILINK_MAX98357A] = { + .name = "MAX98357A", + .stream_name = "MAX98357A PCM", + .codec_dai_name = "HiFi", + .ops = &rockchip_sound_max98357a_ops, + /* set max98357a as slave */ + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS, + }, + [DAILINK_RT5514] = { + .name = "RT5514", + .stream_name = "RT5514 PCM", + .codec_dai_name = "rt5514-aif1", + .ops = &rockchip_sound_rt5514_ops, + /* set rt5514 as slave */ + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS, + }, + [DAILINK_DA7219] = { + .name = "DA7219", + .stream_name = "DA7219 PCM", + .codec_dai_name = "da7219-hifi", + .init = rockchip_sound_da7219_init, + .ops = &rockchip_sound_da7219_ops, + /* set da7219 as slave */ + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS, + }, +}; + +static struct snd_soc_card rockchip_sound_card = { + .name = "rockchip-sound", + .owner = THIS_MODULE, + .dai_link = rockchip_dailinks, + .num_links = ARRAY_SIZE(rockchip_dailinks), + .dapm_widgets = rockchip_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(rockchip_dapm_widgets), + .dapm_routes = rockchip_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(rockchip_dapm_routes), + .controls = rockchip_controls, + .num_controls = ARRAY_SIZE(rockchip_controls), +}; + +static int rockchip_sound_probe(struct platform_device *pdev) +{ + struct snd_soc_card *card = &rockchip_sound_card; + struct device_node *cpu_node; + int i, ret; + + for (i = 0; i < card->num_links; i++) { + cpu_node = of_parse_phandle(pdev->dev.of_node, + "rockchip,cpu", i); + if (!cpu_node) { + dev_err(&pdev->dev, "Property[%d] 'rockchip,cpu' missing or invalid\n", i); + return -EINVAL; + } + + rockchip_dailinks[i].platform_of_node = cpu_node; + rockchip_dailinks[i].cpu_of_node = cpu_node; + + rockchip_dailinks[i].codec_of_node = + of_parse_phandle(pdev->dev.of_node, "rockchip,codec", i); + if (!rockchip_dailinks[i].codec_of_node) { + dev_err(&pdev->dev, + "Property[%d] 'rockchip,codec' missing or invalid\n", i); + return -EINVAL; + } + } + + card->dev = &pdev->dev; + platform_set_drvdata(pdev, card); + + ret = devm_snd_soc_register_card(&pdev->dev, card); + if (ret) + dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n", + __func__, ret); + + return ret; +} + +static const struct of_device_id rockchip_sound_of_match[] = { + { .compatible = "rockchip,rockchip-sound", }, + {}, +}; + +static struct platform_driver rockchip_sound_driver = { + .probe = rockchip_sound_probe, + .driver = { + .name = DRV_NAME, + .of_match_table = rockchip_sound_of_match, +#ifdef CONFIG_PM + .pm = &snd_soc_pm_ops, +#endif + }, +}; + +module_platform_driver(rockchip_sound_driver); + +MODULE_AUTHOR("Xing Zheng <zhengxing(a)rock-chips.com>"); +MODULE_DESCRIPTION("Rockchip ASoC Machine Driver"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:" DRV_NAME); +MODULE_DEVICE_TABLE(of, rockchip_sound_of_match); -- 1.7.9.5

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[alsa-devel] [PATCH 43/54] MAINTAINERS: Add file patterns for sound device tree bindings
by Geert Uytterhoeven 23 May '16

23 May '16

Submitters of device tree binding documentation may forget to CC the subsystem maintainer if this is missing. Signed-off-by: Geert Uytterhoeven <geert(a)linux-m68k.org> Cc: Liam Girdwood <lgirdwood(a)gmail.com> Cc: Mark Brown <broonie(a)kernel.org> Cc: alsa-devel(a)alsa-project.org --- Please apply this patch directly if you want to be involved in device tree binding documentation for your subsystem. --- MAINTAINERS | 1 + 1 file changed, 1 insertion(+) diff --git a/MAINTAINERS b/MAINTAINERS index 139824579fa97c2c..9d81eff6577ff886 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -10728,6 +10728,7 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git L: alsa-devel(a)alsa-project.org (moderated for non-subscribers) W: http://alsa-project.org/main/index.php/ASoC S: Supported +F: Documentation/devicetree/bindings/sound/ F: Documentation/sound/alsa/soc/ F: sound/soc/ F: include/sound/soc* -- 1.9.1

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