May 2018 - Alsa-devel - mailman.alsa-project.org

[alsa-devel] [PATCH] soc: qcom: apr: fix invalid msg_type check
by Srinivas Kandagatla 17 May '18

17 May '18

Removed invalid msg_type check. This also fixes below static checker warning: apr.c:95:35: warning: comparison is always true due to limited range of data type [-Wtype-limits] warn: always true condition '(msg_type != 69864) => (0-u16max != 69864)' Reported-by: Dan Carpenter <dan.carpenter(a)oracle.com> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla(a)linaro.org> --- drivers/soc/qcom/apr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/soc/qcom/apr.c b/drivers/soc/qcom/apr.c index 97f3622da535..57af8a537332 100644 --- a/drivers/soc/qcom/apr.c +++ b/drivers/soc/qcom/apr.c @@ -92,7 +92,7 @@ static int apr_callback(struct rpmsg_device *rpdev, void *buf, } msg_type = APR_HDR_FIELD_MT(hdr->hdr_field); - if (msg_type >= APR_MSG_TYPE_MAX && msg_type != APR_BASIC_RSP_RESULT) { + if (msg_type >= APR_MSG_TYPE_MAX) { dev_err(apr->dev, "APR: Wrong message type: %d\n", msg_type); return -EINVAL; } -- 2.16.2

2 1

[alsa-devel] [PATCH] MAINTAINERS: update sound/soc/intel maintainers
by Pierre-Louis Bossart 17 May '18

17 May '18

The information for Intel SoC drivers was not updated for several years. Add myself, Liam and Keyon (Jie) as maintainers to get notified of contributions and bug reports. As discussed with Mark and Takashi, I'll also monitor alsa-devel and ack Intel patches as necessary. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart(a)linux.intel.com> --- MAINTAINERS | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index e83cee26e195..d70add4c253b 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -7030,14 +7030,13 @@ L: linux-fbdev(a)vger.kernel.org S: Maintained F: drivers/video/fbdev/i810/ -INTEL ASoC BDW/HSW DRIVERS +INTEL ASoC DRIVERS +M: Pierre-Louis Bossart <pierre-louis.bossart(a)linux.intel.com> +M: Liam Girdwood <liam.r.girdwood(a)linux.intel.com> M: Jie Yang <yang.jie(a)linux.intel.com> L: alsa-devel(a)alsa-project.org (moderated for non-subscribers) S: Supported -F: sound/soc/intel/common/sst-dsp* -F: sound/soc/intel/common/sst-firmware.c -F: sound/soc/intel/boards/broadwell.c -F: sound/soc/intel/haswell/ +F: sound/soc/intel/ INTEL C600 SERIES SAS CONTROLLER DRIVER M: Intel SCU Linux support <intel-linux-scu(a)intel.com> -- 2.14.1

3 2

[alsa-devel] [PATCH v2 0/2] ASoC: omap: sdma-pcm: modpost warning fix and include cleanup
by Peter Ujfalusi 17 May '18

17 May '18

Hi, Changes since v1: - Changed the MODULE_LICENSE from "GPL" to "GPL v2" to match the SPDX line. Since the sdma-pcm can be built as module it must have MODULE_LICENSE defined, whcih I have missed: After merging the sound-asoc tree, today's linux-next build (x86_64 allmodconfig) produced this warning: WARNING: modpost: missing MODULE_LICENSE() in sound/soc/omap/snd-soc-sdma.o see include/linux/module.h for more information WARNING: modpost: missing MODULE_LICENSE() in sound/soc/omap/snd-soc-sdma.o see include/linux/module.h for more information The first patch also going to fix runtime issue with module loading: snd_soc_sdma: Unknown symbol devm_kmalloc (err 0) snd_soc_sdma: Unknown symbol omap_dma_filter_fn (err 0) snd_soc_sdma: Unknown symbol snd_dmaengine_pcm_prepare_slave_config (err 0) snd_soc_sdma: Unknown symbol devm_snd_dmaengine_pcm_register (err 0) As these symbols are EXPORT_SYMBOL_GPL()... Introduced by commit dde637f2daf1 ("ASoC: omap: Introduce the generic_dmaengine_pcm based sdma-pcm") The second patch is kust a small adjustement for the include files. Regards, Peter --- Peter Ujfalusi (2): ASoC: omap: sdma-pcm: Fix modpost warning ASoC: omap: sdma-pcm: Correction for the include files sound/soc/omap/sdma-pcm.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) -- Peter Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki

2 3

[alsa-devel] [PATCH 0/2] ASoC: omap: sdma-pcm: modpost warning fix and include cleanup
by Peter Ujfalusi 17 May '18

17 May '18

Hi, Since the sdma-pcm can be built as module it must have MODULE_LICENSE defined, whcih I have missed: After merging the sound-asoc tree, today's linux-next build (x86_64 allmodconfig) produced this warning: WARNING: modpost: missing MODULE_LICENSE() in sound/soc/omap/snd-soc-sdma.o see include/linux/module.h for more information WARNING: modpost: missing MODULE_LICENSE() in sound/soc/omap/snd-soc-sdma.o see include/linux/module.h for more information Introduced by commit dde637f2daf1 ("ASoC: omap: Introduce the generic_dmaengine_pcm based sdma-pcm") The second patch is kust a small adjustement for the include files. Regards, Peter --- Peter Ujfalusi (2): ASoC: omap: sdma-pcm: Fix modpost warning ASoC: omap: sdma-pcm: Correction for the include files sound/soc/omap/sdma-pcm.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) -- Peter Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki

2 4

[alsa-devel] [PATCH] ASoC: rt5663: Use the set_jack() instead of the export function
by Oder Chiou 17 May '18

17 May '18

The patch replaces the export function with the new API set_jack(). Signed-off-by: Oder Chiou <oder_chiou(a)realtek.com> --- sound/soc/codecs/rt5663.c | 5 ++--- sound/soc/codecs/rt5663.h | 2 -- sound/soc/intel/boards/kbl_rt5663_max98927.c | 3 ++- sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c | 2 +- 4 files changed, 5 insertions(+), 7 deletions(-) diff --git a/sound/soc/codecs/rt5663.c b/sound/soc/codecs/rt5663.c index f0cef52..eefa918 100644 --- a/sound/soc/codecs/rt5663.c +++ b/sound/soc/codecs/rt5663.c @@ -1857,7 +1857,7 @@ static irqreturn_t rt5663_irq(int irq, void *data) } int rt5663_set_jack_detect(struct snd_soc_component *component, - struct snd_soc_jack *hs_jack) + struct snd_soc_jack *hs_jack, void *data) { struct rt5663_priv *rt5663 = snd_soc_component_get_drvdata(component); @@ -1867,7 +1867,6 @@ int rt5663_set_jack_detect(struct snd_soc_component *component, return 0; } -EXPORT_SYMBOL_GPL(rt5663_set_jack_detect); static bool rt5663_check_jd_status(struct snd_soc_component *component) { @@ -3244,10 +3243,10 @@ static const struct snd_soc_component_driver soc_component_dev_rt5663 = { .num_dapm_widgets = ARRAY_SIZE(rt5663_dapm_widgets), .dapm_routes = rt5663_dapm_routes, .num_dapm_routes = ARRAY_SIZE(rt5663_dapm_routes), + .set_jack = rt5663_set_jack_detect, .use_pmdown_time = 1, .endianness = 1, .non_legacy_dai_naming = 1, - }; static const struct regmap_config rt5663_v2_regmap = { diff --git a/sound/soc/codecs/rt5663.h b/sound/soc/codecs/rt5663.h index 865203c..794cf3f 100644 --- a/sound/soc/codecs/rt5663.h +++ b/sound/soc/codecs/rt5663.h @@ -1125,8 +1125,6 @@ enum { RT5663_AD_STEREO_FILTER = 0x2, }; -int rt5663_set_jack_detect(struct snd_soc_component *component, - struct snd_soc_jack *hs_jack); int rt5663_sel_asrc_clk_src(struct snd_soc_component *component, unsigned int filter_mask, unsigned int clk_src); diff --git a/sound/soc/intel/boards/kbl_rt5663_max98927.c b/sound/soc/intel/boards/kbl_rt5663_max98927.c index 513cc65..3a61252 100644 --- a/sound/soc/intel/boards/kbl_rt5663_max98927.c +++ b/sound/soc/intel/boards/kbl_rt5663_max98927.c @@ -299,7 +299,8 @@ static int kabylake_rt5663_codec_init(struct snd_soc_pcm_runtime *rtd) snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP); snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN); - rt5663_set_jack_detect(component, &ctx->kabylake_headset); + snd_soc_component_set_jack(component, &ctx->kabylake_headset, NULL); + return ret; } diff --git a/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c b/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c index e8382d6..92f5fb2 100644 --- a/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c +++ b/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c @@ -200,7 +200,7 @@ static int kabylake_rt5663_codec_init(struct snd_soc_pcm_runtime *rtd) snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP); snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN); - rt5663_set_jack_detect(component, &ctx->kabylake_headset); + snd_soc_component_set_jack(component, &ctx->kabylake_headset, NULL); ret = snd_soc_dapm_ignore_suspend(&rtd->card->dapm, "DMIC"); if (ret) -- 2.7.4

3 4

[alsa-devel] [PATCH v3 00/10] ASoC: rt5640: Add jack-detect and button-press support
by Hans de Goede 17 May '18

17 May '18

Hi Mark, et. al., Here is v3 of the remaining patches from my rt5640 jack-detect series. This time this is really based on your sound/for-next branch, so this should apply cleanly now. As mentioned with v2 I've also added a quirk for one more device to the: "ASoC: Intel: bytcr_rt5640: Add quirks for various devices" patch. Other then that there are no changes. Regards, Hans

2 11

[alsa-devel] [PATCH v2 00/10] ASoC: rt5640: Add jack-detect and button-press support
by Hans de Goede 17 May '18

17 May '18

Hi Mark, et. al., Here is v2 of the remaining patches from my rt5640 jack-detect series. As requested this is rebased on your sound/for-next branch, so this should apply cleanly now. I also added a quirk for one more device to the: "ASoC: Intel: bytcr_rt5640: Add quirks for various devices" patch. Other then that there are no changes. Regards, Hans

2 13

[alsa-devel] [PATCH 0/1] Handling of serializers
by Vishal Thanki 17 May '18

17 May '18

On a custom AM33xx based platform, we use 4 channels for audio output (2 * Left/Right) by making use of two TX serializers. The audio input path only uses 2 channels, hence one RX serializer. If the recording is started before the playback, the playback cannot make use of all 4 channels because of the imposed max number of channels by recording. And if playback is started before recording, the hw_params set during recording stream would disable an active TX serializer which causes audio distortion. I have tried to fix this unwanted behavior in following patch. Please comment if this should be done differently. Vishal Thanki (1): ASoC: davinci-mcasp: Only disable inactive serializer sound/soc/davinci/davinci-mcasp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 2.14.3

3 6

[alsa-devel] [PATCH v2] ASoC: ssm2305: Add amplifier driver
by Marco Felsch 17 May '18

17 May '18

The ssm2305 is a simple Class-D audio amplifier. A application can turn on/off the device by a gpio. It's also possible to hardwire the shutdown pin. Tested on a i.MX6 based custom board. Signed-off-by: Marco Felsch <m.felsch(a)pengutronix.de> --- Notes (changelog): v2: - fix copyright information - rename shutdown gpio and add some more documentation - mark shutdown gpio as required - rm registration information .../devicetree/bindings/sound/adi,ssm2305.txt | 14 +++ sound/soc/codecs/Kconfig | 7 ++ sound/soc/codecs/Makefile | 2 + sound/soc/codecs/ssm2305.c | 105 ++++++++++++++++++ 4 files changed, 128 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/adi,ssm2305.txt create mode 100644 sound/soc/codecs/ssm2305.c diff --git a/Documentation/devicetree/bindings/sound/adi,ssm2305.txt b/Documentation/devicetree/bindings/sound/adi,ssm2305.txt new file mode 100644 index 000000000000..a9c9d83c8a30 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/adi,ssm2305.txt @@ -0,0 +1,14 @@ +Analog Devices SSM2305 Speaker Amplifier +======================================== + +Required properties: + - compatible : "adi,ssm2305" + - shutdown-gpios : The gpio connected to the shutdown pin. + The gpio signal is ACTIVE_LOW. + +Example: + +ssm2305: analog-amplifier { + compatible = "adi,ssm2305"; + shutdown-gpios = <&gpio3 20 GPIO_ACTIVE_LOW>; +}; diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index 9548f63ca531..d81b0cb291a3 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -142,6 +142,7 @@ config SND_SOC_ALL_CODECS select SND_SOC_SI476X if MFD_SI476X_CORE select SND_SOC_SIRF_AUDIO_CODEC select SND_SOC_SPDIF + select SND_SOC_SSM2305 select SND_SOC_SSM2518 if I2C select SND_SOC_SSM2602_SPI if SPI_MASTER select SND_SOC_SSM2602_I2C if I2C @@ -883,6 +884,12 @@ config SND_SOC_SIRF_AUDIO_CODEC config SND_SOC_SPDIF tristate "S/PDIF CODEC" +config SND_SOC_SSM2305 + tristate "Analog Devices SSM2305 Class-D Amplifier" + help + Enable support for Analog Devices SSM2305 filterless + high-efficiency mono Class-D audio power amplifiers. + config SND_SOC_SSM2518 tristate diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index e849d1495308..7d75ac8f6716 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -153,6 +153,7 @@ snd-soc-si476x-objs := si476x.o snd-soc-sirf-audio-codec-objs := sirf-audio-codec.o snd-soc-spdif-tx-objs := spdif_transmitter.o snd-soc-spdif-rx-objs := spdif_receiver.o +snd-soc-ssm2305-objs := ssm2305.o snd-soc-ssm2518-objs := ssm2518.o snd-soc-ssm2602-objs := ssm2602.o snd-soc-ssm2602-spi-objs := ssm2602-spi.o @@ -404,6 +405,7 @@ obj-$(CONFIG_SND_SOC_SIGMADSP_REGMAP) += snd-soc-sigmadsp-regmap.o obj-$(CONFIG_SND_SOC_SI476X) += snd-soc-si476x.o obj-$(CONFIG_SND_SOC_SPDIF) += snd-soc-spdif-rx.o snd-soc-spdif-tx.o obj-$(CONFIG_SND_SOC_SIRF_AUDIO_CODEC) += sirf-audio-codec.o +obj-$(CONFIG_SND_SOC_SSM2305) += snd-soc-ssm2305.o obj-$(CONFIG_SND_SOC_SSM2518) += snd-soc-ssm2518.o obj-$(CONFIG_SND_SOC_SSM2602) += snd-soc-ssm2602.o obj-$(CONFIG_SND_SOC_SSM2602_SPI) += snd-soc-ssm2602-spi.o diff --git a/sound/soc/codecs/ssm2305.c b/sound/soc/codecs/ssm2305.c new file mode 100644 index 000000000000..06ff649a1fd2 --- /dev/null +++ b/sound/soc/codecs/ssm2305.c @@ -0,0 +1,105 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Analog Devices SSM2305 Amplifier Driver + * + * Copyright (C) 2018 Pengutronix, Marco Felsch <kernel(a)pengutronix.de> + */ + +#include <linux/gpio/consumer.h> +#include <linux/module.h> +#include <sound/soc.h> + +#define DRV_NAME "ssm2305" + +struct ssm2305 { + /* shutdown gpio */ + struct gpio_desc *gpiod_shutdown; +}; + +static int ssm2305_power_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kctrl, int event) +{ + struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm); + struct ssm2305 *data = snd_soc_component_get_drvdata(c); + + gpiod_set_value_cansleep(data->gpiod_shutdown, + SND_SOC_DAPM_EVENT_ON(event)); + + return 0; +} + +static const struct snd_soc_dapm_widget ssm2305_dapm_widgets[] = { + /* Stereo input/output */ + SND_SOC_DAPM_INPUT("L_IN"), + SND_SOC_DAPM_INPUT("R_IN"), + SND_SOC_DAPM_OUTPUT("L_OUT"), + SND_SOC_DAPM_OUTPUT("R_OUT"), + + SND_SOC_DAPM_SUPPLY("Power", SND_SOC_NOPM, 0, 0, ssm2305_power_event, + SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), +}; + +static const struct snd_soc_dapm_route ssm2305_dapm_routes[] = { + { "L_OUT", NULL, "L_IN" }, + { "R_OUT", NULL, "R_IN" }, + { "L_IN", NULL, "Power" }, + { "R_IN", NULL, "Power" }, +}; + +static const struct snd_soc_component_driver ssm2305_component_driver = { + .dapm_widgets = ssm2305_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(ssm2305_dapm_widgets), + .dapm_routes = ssm2305_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(ssm2305_dapm_routes), +}; + +static int ssm2305_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct ssm2305 *priv; + int err; + + /* Allocate the private data */ + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + platform_set_drvdata(pdev, priv); + + /* Get shutdown gpio */ + priv->gpiod_shutdown = devm_gpiod_get(dev, "shutdown", + GPIOD_OUT_LOW); + if (IS_ERR(priv->gpiod_shutdown)) { + err = PTR_ERR(priv->gpiod_shutdown); + if (err != -EPROBE_DEFER) { + dev_err(dev, "Failed to get 'shutdown' gpio: %d\n", + err); + return err; + } + } + + return devm_snd_soc_register_component(dev, &ssm2305_component_driver, + NULL, 0); +} + +#ifdef CONFIG_OF +static const struct of_device_id ssm2305_of_match[] = { + { .compatible = "adi,ssm2305", }, + { } +}; +MODULE_DEVICE_TABLE(of, ssm2305_of_match); +#endif + +static struct platform_driver ssm2305_driver = { + .driver = { + .name = DRV_NAME, + .of_match_table = of_match_ptr(ssm2305_of_match), + }, + .probe = ssm2305_probe, +}; + +module_platform_driver(ssm2305_driver); + +MODULE_DESCRIPTION("ASoC SSM2305 amplifier driver"); +MODULE_AUTHOR("Marco Felsch <m.felsch(a)pengutronix.de>"); +MODULE_LICENSE("GPL v2"); -- 2.17.0

2 2

[alsa-devel] [PATCH] ASoC: ssm2305: Add amplifier driver
by Marco Felsch 17 May '18

17 May '18

The ssm2305 is a simple Class-D audio amplifier. A application can turn on/off the device by a gpio. It's also possible to hardwire the shutdown pin. Tested on a i.MX6 based custom board. Signed-off-by: Marco Felsch <m.felsch(a)pengutronix.de> --- .../devicetree/bindings/sound/adi,ssm2305.txt | 15 +++ sound/soc/codecs/Kconfig | 7 ++ sound/soc/codecs/Makefile | 2 + sound/soc/codecs/ssm2305.c | 105 ++++++++++++++++++ 4 files changed, 129 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/adi,ssm2305.txt create mode 100644 sound/soc/codecs/ssm2305.c diff --git a/Documentation/devicetree/bindings/sound/adi,ssm2305.txt b/Documentation/devicetree/bindings/sound/adi,ssm2305.txt new file mode 100644 index 000000000000..fc4c99225538 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/adi,ssm2305.txt @@ -0,0 +1,15 @@ +Analog Devices SSM2305 Speaker Amplifier +======================================== + +Required properties: + - compatible : "adi,ssm2305" + +Optional properties: + - ssm2305,shutdown-gpio : the gpio connected to the shutdown pin + +Example: + +ssm2305: analog-amplifier { + compatible = "adi,ssm2305"; + ssm2305,shutdown-gpio = <&gpio3 20 GPIO_ACTIVE_LOW>; +}; diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index 9548f63ca531..d81b0cb291a3 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -142,6 +142,7 @@ config SND_SOC_ALL_CODECS select SND_SOC_SI476X if MFD_SI476X_CORE select SND_SOC_SIRF_AUDIO_CODEC select SND_SOC_SPDIF + select SND_SOC_SSM2305 select SND_SOC_SSM2518 if I2C select SND_SOC_SSM2602_SPI if SPI_MASTER select SND_SOC_SSM2602_I2C if I2C @@ -883,6 +884,12 @@ config SND_SOC_SIRF_AUDIO_CODEC config SND_SOC_SPDIF tristate "S/PDIF CODEC" +config SND_SOC_SSM2305 + tristate "Analog Devices SSM2305 Class-D Amplifier" + help + Enable support for Analog Devices SSM2305 filterless + high-efficiency mono Class-D audio power amplifiers. + config SND_SOC_SSM2518 tristate diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index e849d1495308..7d75ac8f6716 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -153,6 +153,7 @@ snd-soc-si476x-objs := si476x.o snd-soc-sirf-audio-codec-objs := sirf-audio-codec.o snd-soc-spdif-tx-objs := spdif_transmitter.o snd-soc-spdif-rx-objs := spdif_receiver.o +snd-soc-ssm2305-objs := ssm2305.o snd-soc-ssm2518-objs := ssm2518.o snd-soc-ssm2602-objs := ssm2602.o snd-soc-ssm2602-spi-objs := ssm2602-spi.o @@ -404,6 +405,7 @@ obj-$(CONFIG_SND_SOC_SIGMADSP_REGMAP) += snd-soc-sigmadsp-regmap.o obj-$(CONFIG_SND_SOC_SI476X) += snd-soc-si476x.o obj-$(CONFIG_SND_SOC_SPDIF) += snd-soc-spdif-rx.o snd-soc-spdif-tx.o obj-$(CONFIG_SND_SOC_SIRF_AUDIO_CODEC) += sirf-audio-codec.o +obj-$(CONFIG_SND_SOC_SSM2305) += snd-soc-ssm2305.o obj-$(CONFIG_SND_SOC_SSM2518) += snd-soc-ssm2518.o obj-$(CONFIG_SND_SOC_SSM2602) += snd-soc-ssm2602.o obj-$(CONFIG_SND_SOC_SSM2602_SPI) += snd-soc-ssm2602-spi.o diff --git a/sound/soc/codecs/ssm2305.c b/sound/soc/codecs/ssm2305.c new file mode 100644 index 000000000000..ce8d5a18c329 --- /dev/null +++ b/sound/soc/codecs/ssm2305.c @@ -0,0 +1,105 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Analog Devices SSM2305 Amplifier Driver + * + * Copyright (C) 2018 Pengutronix, Fridolin Tux <kernel(a)pengutronix.de> + */ + +#include <linux/gpio/consumer.h> +#include <linux/module.h> +#include <sound/soc.h> + +#define DRV_NAME "ssm2305" + +struct ssm2305 { + /* shutdown gpio */ + struct gpio_desc *gpiod_shutdown; +}; + +static int ssm2305_power_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kctrl, int event) +{ + struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm); + struct ssm2305 *data = snd_soc_component_get_drvdata(c); + + gpiod_set_value_cansleep(data->gpiod_shutdown, + SND_SOC_DAPM_EVENT_ON(event)); + + return 0; +} + +static const struct snd_soc_dapm_widget ssm2305_dapm_widgets[] = { + /* Stereo input/output */ + SND_SOC_DAPM_INPUT("L_IN"), + SND_SOC_DAPM_INPUT("R_IN"), + SND_SOC_DAPM_OUTPUT("L_OUT"), + SND_SOC_DAPM_OUTPUT("R_OUT"), + + SND_SOC_DAPM_SUPPLY("Power", SND_SOC_NOPM, 0, 0, ssm2305_power_event, + SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), +}; + +static const struct snd_soc_dapm_route ssm2305_dapm_routes[] = { + { "L_OUT", NULL, "L_IN" }, + { "R_OUT", NULL, "R_IN" }, + { "L_IN", NULL, "Power" }, + { "R_IN", NULL, "Power" }, +}; + +static const struct snd_soc_component_driver ssm2305_component_driver = { + .dapm_widgets = ssm2305_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(ssm2305_dapm_widgets), + .dapm_routes = ssm2305_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(ssm2305_dapm_routes), +}; + +static int ssm2305_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct ssm2305 *priv; + int err; + + /* Allocate the private data */ + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + platform_set_drvdata(pdev, priv); + + /* Shutdown gpio is optional */ + priv->gpiod_shutdown = devm_gpiod_get(dev, "ssm2305,shutdown", + GPIOD_OUT_LOW); + if (IS_ERR(priv->gpiod_shutdown)) { + err = PTR_ERR(priv->gpiod_shutdown); + if (err != -EPROBE_DEFER) + dev_warn(dev, "Failed to get 'shutdown' gpio: %d\n", + err); + } + + dev_info(dev, "probed\n"); + + return devm_snd_soc_register_component(dev, &ssm2305_component_driver, + NULL, 0); +} + +#ifdef CONFIG_OF +static const struct of_device_id ssm2305_of_match[] = { + { .compatible = "adi,ssm2305", }, + { } +}; +MODULE_DEVICE_TABLE(of, ssm2305_of_match); +#endif + +static struct platform_driver ssm2305_driver = { + .driver = { + .name = DRV_NAME, + .of_match_table = of_match_ptr(ssm2305_of_match), + }, + .probe = ssm2305_probe, +}; + +module_platform_driver(ssm2305_driver); + +MODULE_DESCRIPTION("ASoC SSM2305 amplifier driver"); +MODULE_AUTHOR("Marco Felsch <m.felsch(a)pengutronix.de>"); +MODULE_LICENSE("GPL v2"); -- 2.17.0

3 3