From 3047ec50c3ebbe082217dc20ec0db4f3e5c7abea Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Tue, 28 Nov 2017 06:05:15 +0000 Subject: ASoC: use snd_soc_component_init_regmap() on si476x To setup regmap, ALSA SoC has snd_soc_component_init_regmap() and .get_regmap. But these are duplicated feature. Let's use snd_soc_component_init_regmap() and remove .get_regmap Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- sound/soc/codecs/si476x.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'sound') diff --git a/sound/soc/codecs/si476x.c b/sound/soc/codecs/si476x.c index 354dc0d64f11..7b91ee267b4e 100644 --- a/sound/soc/codecs/si476x.c +++ b/sound/soc/codecs/si476x.c @@ -231,14 +231,17 @@ static struct snd_soc_dai_driver si476x_dai = { .ops = &si476x_dai_ops, }; -static struct regmap *si476x_get_regmap(struct device *dev) +static int si476x_probe(struct snd_soc_component *component) { - return dev_get_regmap(dev->parent, NULL); + snd_soc_component_init_regmap(component, + dev_get_regmap(component->dev->parent, NULL)); + + return 0; } static const struct snd_soc_codec_driver soc_codec_dev_si476x = { - .get_regmap = si476x_get_regmap, .component_driver = { + .probe = si476x_probe, .dapm_widgets = si476x_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(si476x_dapm_widgets), .dapm_routes = si476x_dapm_routes, -- cgit v1.2.3 From eb733366f5f7f416a7d9215a40e00d57aa193361 Mon Sep 17 00:00:00 2001 From: Katsuhiro Suzuki Date: Wed, 22 Nov 2017 20:43:14 +0900 Subject: ASoC: spdif: Add S32_LE support for S/PDIF dummy codec drivers AIO on UniPhier can output S/PDIF where no codec is needed. This patch adds S32_LE support for dummy codec drivers. If one S/PDIF controller has its own limitation, its CPU DAI driver should set the supported format by its own circumstance, since the soc-pcm driver will use the intersection of cpu_dai's formats and codec_dai's formats. Signed-off-by: Katsuhiro Suzuki Signed-off-by: Mark Brown --- sound/soc/codecs/spdif_receiver.c | 5 +++-- sound/soc/codecs/spdif_transmitter.c | 5 +++-- 2 files changed, 6 insertions(+), 4 deletions(-) (limited to 'sound') diff --git a/sound/soc/codecs/spdif_receiver.c b/sound/soc/codecs/spdif_receiver.c index 7acd05140a81..c8fd6367f6c0 100644 --- a/sound/soc/codecs/spdif_receiver.c +++ b/sound/soc/codecs/spdif_receiver.c @@ -34,10 +34,11 @@ static const struct snd_soc_dapm_route dir_routes[] = { #define STUB_RATES SNDRV_PCM_RATE_8000_192000 #define STUB_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \ SNDRV_PCM_FMTBIT_S20_3LE | \ - SNDRV_PCM_FMTBIT_S24_LE | \ + SNDRV_PCM_FMTBIT_S24_LE | \ + SNDRV_PCM_FMTBIT_S32_LE | \ SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE) -static const struct snd_soc_codec_driver soc_codec_spdif_dir = { +static struct snd_soc_codec_driver soc_codec_spdif_dir = { .component_driver = { .dapm_widgets = dir_widgets, .num_dapm_widgets = ARRAY_SIZE(dir_widgets), diff --git a/sound/soc/codecs/spdif_transmitter.c b/sound/soc/codecs/spdif_transmitter.c index 063a64ff82d3..037aa1d45559 100644 --- a/sound/soc/codecs/spdif_transmitter.c +++ b/sound/soc/codecs/spdif_transmitter.c @@ -27,7 +27,8 @@ #define STUB_RATES SNDRV_PCM_RATE_8000_192000 #define STUB_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \ SNDRV_PCM_FMTBIT_S20_3LE | \ - SNDRV_PCM_FMTBIT_S24_LE) + SNDRV_PCM_FMTBIT_S24_LE | \ + SNDRV_PCM_FMTBIT_S32_LE) static const struct snd_soc_dapm_widget dit_widgets[] = { SND_SOC_DAPM_OUTPUT("spdif-out"), @@ -37,7 +38,7 @@ static const struct snd_soc_dapm_route dit_routes[] = { { "spdif-out", NULL, "Playback" }, }; -static const struct snd_soc_codec_driver soc_codec_spdif_dit = { +static struct snd_soc_codec_driver soc_codec_spdif_dit = { .component_driver = { .dapm_widgets = dit_widgets, .num_dapm_widgets = ARRAY_SIZE(dit_widgets), -- cgit v1.2.3 From 55da094824c4ef1d50bc591733d79448d00265bb Mon Sep 17 00:00:00 2001 From: Arnaud Pouliquen Date: Wed, 10 Jan 2018 11:13:15 +0100 Subject: ASoC: stm32: add DFSDM DAI support Add driver to handle DAI interface for PDM microphones connected to Digital Filter for Sigma Delta Modulators IP. Signed-off-by: Arnaud Pouliquen Signed-off-by: Mark Brown --- sound/soc/stm/Kconfig | 11 ++ sound/soc/stm/Makefile | 3 + sound/soc/stm/stm32_adfsdm.c | 347 +++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 361 insertions(+) create mode 100644 sound/soc/stm/stm32_adfsdm.c (limited to 'sound') diff --git a/sound/soc/stm/Kconfig b/sound/soc/stm/Kconfig index 3398e6c57f37..a78f7700d489 100644 --- a/sound/soc/stm/Kconfig +++ b/sound/soc/stm/Kconfig @@ -28,4 +28,15 @@ config SND_SOC_STM32_SPDIFRX help Say Y if you want to enable S/PDIF capture for STM32 +config SND_SOC_STM32_DFSDM + tristate "SoC Audio support for STM32 DFSDM" + depends on (ARCH_STM32 && OF && STM32_DFSDM_ADC) || COMPILE_TEST + depends on SND_SOC + select SND_SOC_GENERIC_DMAENGINE_PCM + select SND_SOC_DMIC + select IIO_BUFFER_CB + help + Select this option to enable the STM32 Digital Filter + for Sigma Delta Modulators (DFSDM) driver used + in various STM32 series for digital microphone capture. endmenu diff --git a/sound/soc/stm/Makefile b/sound/soc/stm/Makefile index 5b7f0fab0bd6..3143c0b47042 100644 --- a/sound/soc/stm/Makefile +++ b/sound/soc/stm/Makefile @@ -13,3 +13,6 @@ obj-$(CONFIG_SND_SOC_STM32_I2S) += snd-soc-stm32-i2s.o # SPDIFRX snd-soc-stm32-spdifrx-objs := stm32_spdifrx.o obj-$(CONFIG_SND_SOC_STM32_SPDIFRX) += snd-soc-stm32-spdifrx.o + +#DFSDM +obj-$(CONFIG_SND_SOC_STM32_DFSDM) += stm32_adfsdm.o diff --git a/sound/soc/stm/stm32_adfsdm.c b/sound/soc/stm/stm32_adfsdm.c new file mode 100644 index 000000000000..af50891983c6 --- /dev/null +++ b/sound/soc/stm/stm32_adfsdm.c @@ -0,0 +1,347 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * This file is part of STM32 DFSDM ASoC DAI driver + * + * Copyright (C) 2017, STMicroelectronics - All Rights Reserved + * Authors: Arnaud Pouliquen + * Olivier Moysan + */ + +#include +#include +#include +#include + +#include +#include +#include + +#include +#include + +#define STM32_ADFSDM_DRV_NAME "stm32-adfsdm" + +#define DFSDM_MAX_PERIOD_SIZE (PAGE_SIZE / 2) +#define DFSDM_MAX_PERIODS 6 + +struct stm32_adfsdm_priv { + struct snd_soc_dai_driver dai_drv; + struct snd_pcm_substream *substream; + struct device *dev; + + /* IIO */ + struct iio_channel *iio_ch; + struct iio_cb_buffer *iio_cb; + bool iio_active; + + /* PCM buffer */ + unsigned char *pcm_buff; + unsigned int pos; +}; + +static const struct snd_pcm_hardware stm32_adfsdm_pcm_hw = { + .info = SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_PAUSE, + .formats = SNDRV_PCM_FMTBIT_S32_LE, + + .rate_min = 8000, + .rate_max = 32000, + + .channels_min = 1, + .channels_max = 1, + + .periods_min = 2, + .periods_max = DFSDM_MAX_PERIODS, + + .period_bytes_max = DFSDM_MAX_PERIOD_SIZE, + .buffer_bytes_max = DFSDM_MAX_PERIODS * DFSDM_MAX_PERIOD_SIZE +}; + +static void stm32_adfsdm_shutdown(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct stm32_adfsdm_priv *priv = snd_soc_dai_get_drvdata(dai); + + if (priv->iio_active) { + iio_channel_stop_all_cb(priv->iio_cb); + priv->iio_active = false; + } +} + +static int stm32_adfsdm_dai_prepare(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct stm32_adfsdm_priv *priv = snd_soc_dai_get_drvdata(dai); + int ret; + + ret = iio_write_channel_attribute(priv->iio_ch, + substream->runtime->rate, 0, + IIO_CHAN_INFO_SAMP_FREQ); + if (ret < 0) { + dev_err(dai->dev, "%s: Failed to set %d sampling rate\n", + __func__, substream->runtime->rate); + return ret; + } + + if (!priv->iio_active) { + ret = iio_channel_start_all_cb(priv->iio_cb); + if (!ret) + priv->iio_active = true; + else + dev_err(dai->dev, "%s: IIO channel start failed (%d)\n", + __func__, ret); + } + + return ret; +} + +static int stm32_adfsdm_set_sysclk(struct snd_soc_dai *dai, int clk_id, + unsigned int freq, int dir) +{ + struct stm32_adfsdm_priv *priv = snd_soc_dai_get_drvdata(dai); + ssize_t size; + char str_freq[10]; + + dev_dbg(dai->dev, "%s: Enter for freq %d\n", __func__, freq); + + /* Set IIO frequency if CODEC is master as clock comes from SPI_IN */ + + snprintf(str_freq, sizeof(str_freq), "%d\n", freq); + size = iio_write_channel_ext_info(priv->iio_ch, "spi_clk_freq", + str_freq, sizeof(str_freq)); + if (size != sizeof(str_freq)) { + dev_err(dai->dev, "%s: Failed to set SPI clock\n", + __func__); + return -EINVAL; + } + return 0; +} + +static const struct snd_soc_dai_ops stm32_adfsdm_dai_ops = { + .shutdown = stm32_adfsdm_shutdown, + .prepare = stm32_adfsdm_dai_prepare, + .set_sysclk = stm32_adfsdm_set_sysclk, +}; + +static const struct snd_soc_dai_driver stm32_adfsdm_dai = { + .capture = { + .channels_min = 1, + .channels_max = 1, + .formats = SNDRV_PCM_FMTBIT_S32_LE, + .rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 | + SNDRV_PCM_RATE_32000), + }, + .ops = &stm32_adfsdm_dai_ops, +}; + +static const struct snd_soc_component_driver stm32_adfsdm_dai_component = { + .name = "stm32_dfsdm_audio", +}; + +static int stm32_afsdm_pcm_cb(const void *data, size_t size, void *private) +{ + struct stm32_adfsdm_priv *priv = private; + struct snd_soc_pcm_runtime *rtd = priv->substream->private_data; + u8 *pcm_buff = priv->pcm_buff; + u8 *src_buff = (u8 *)data; + unsigned int buff_size = snd_pcm_lib_buffer_bytes(priv->substream); + unsigned int period_size = snd_pcm_lib_period_bytes(priv->substream); + unsigned int old_pos = priv->pos; + unsigned int cur_size = size; + + dev_dbg(rtd->dev, "%s: buff_add :%p, pos = %d, size = %zu\n", + __func__, &pcm_buff[priv->pos], priv->pos, size); + + if ((priv->pos + size) > buff_size) { + memcpy(&pcm_buff[priv->pos], src_buff, buff_size - priv->pos); + cur_size -= buff_size - priv->pos; + priv->pos = 0; + } + + memcpy(&pcm_buff[priv->pos], &src_buff[size - cur_size], cur_size); + priv->pos = (priv->pos + cur_size) % buff_size; + + if (cur_size != size || (old_pos && (old_pos % period_size < size))) + snd_pcm_period_elapsed(priv->substream); + + return 0; +} + +static int stm32_adfsdm_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct stm32_adfsdm_priv *priv = + snd_soc_dai_get_drvdata(rtd->cpu_dai); + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + priv->pos = 0; + return stm32_dfsdm_get_buff_cb(priv->iio_ch->indio_dev, + stm32_afsdm_pcm_cb, priv); + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_STOP: + return stm32_dfsdm_release_buff_cb(priv->iio_ch->indio_dev); + } + + return -EINVAL; +} + +static int stm32_adfsdm_pcm_open(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct stm32_adfsdm_priv *priv = snd_soc_dai_get_drvdata(rtd->cpu_dai); + int ret; + + ret = snd_soc_set_runtime_hwparams(substream, &stm32_adfsdm_pcm_hw); + if (!ret) + priv->substream = substream; + + return ret; +} + +static int stm32_adfsdm_pcm_close(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct stm32_adfsdm_priv *priv = + snd_soc_dai_get_drvdata(rtd->cpu_dai); + + snd_pcm_lib_free_pages(substream); + priv->substream = NULL; + + return 0; +} + +static snd_pcm_uframes_t stm32_adfsdm_pcm_pointer( + struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct stm32_adfsdm_priv *priv = + snd_soc_dai_get_drvdata(rtd->cpu_dai); + + return bytes_to_frames(substream->runtime, priv->pos); +} + +static int stm32_adfsdm_pcm_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct stm32_adfsdm_priv *priv = + snd_soc_dai_get_drvdata(rtd->cpu_dai); + int ret; + + ret = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params)); + if (ret < 0) + return ret; + priv->pcm_buff = substream->runtime->dma_area; + + return iio_channel_cb_set_buffer_watermark(priv->iio_cb, + params_period_size(params)); +} + +static int stm32_adfsdm_pcm_hw_free(struct snd_pcm_substream *substream) +{ + snd_pcm_lib_free_pages(substream); + + return 0; +} + +static struct snd_pcm_ops stm32_adfsdm_pcm_ops = { + .open = stm32_adfsdm_pcm_open, + .close = stm32_adfsdm_pcm_close, + .hw_params = stm32_adfsdm_pcm_hw_params, + .hw_free = stm32_adfsdm_pcm_hw_free, + .trigger = stm32_adfsdm_trigger, + .pointer = stm32_adfsdm_pcm_pointer, +}; + +static int stm32_adfsdm_pcm_new(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_pcm *pcm = rtd->pcm; + struct stm32_adfsdm_priv *priv = + snd_soc_dai_get_drvdata(rtd->cpu_dai); + unsigned int size = DFSDM_MAX_PERIODS * DFSDM_MAX_PERIOD_SIZE; + + return snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, + priv->dev, size, size); +} + +static void stm32_adfsdm_pcm_free(struct snd_pcm *pcm) +{ + struct snd_pcm_substream *substream; + struct snd_soc_pcm_runtime *rtd; + struct stm32_adfsdm_priv *priv; + + substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; + if (substream) { + rtd = substream->private_data; + priv = snd_soc_dai_get_drvdata(rtd->cpu_dai); + + snd_pcm_lib_preallocate_free_for_all(pcm); + } +} + +static struct snd_soc_platform_driver stm32_adfsdm_soc_platform = { + .ops = &stm32_adfsdm_pcm_ops, + .pcm_new = stm32_adfsdm_pcm_new, + .pcm_free = stm32_adfsdm_pcm_free, +}; + +static const struct of_device_id stm32_adfsdm_of_match[] = { + {.compatible = "st,stm32h7-dfsdm-dai"}, + {} +}; +MODULE_DEVICE_TABLE(of, stm32_adfsdm_of_match); + +static int stm32_adfsdm_probe(struct platform_device *pdev) +{ + struct stm32_adfsdm_priv *priv; + int ret; + + priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->dev = &pdev->dev; + priv->dai_drv = stm32_adfsdm_dai; + + dev_set_drvdata(&pdev->dev, priv); + + ret = devm_snd_soc_register_component(&pdev->dev, + &stm32_adfsdm_dai_component, + &priv->dai_drv, 1); + if (ret < 0) + return ret; + + /* Associate iio channel */ + priv->iio_ch = devm_iio_channel_get_all(&pdev->dev); + if (IS_ERR(priv->iio_ch)) + return PTR_ERR(priv->iio_ch); + + priv->iio_cb = iio_channel_get_all_cb(&pdev->dev, NULL, NULL); + if (IS_ERR(priv->iio_cb)) + return PTR_ERR(priv->iio_ch); + + ret = devm_snd_soc_register_platform(&pdev->dev, + &stm32_adfsdm_soc_platform); + if (ret < 0) + dev_err(&pdev->dev, "%s: Failed to register PCM platform\n", + __func__); + + return ret; +} + +static struct platform_driver stm32_adfsdm_driver = { + .driver = { + .name = STM32_ADFSDM_DRV_NAME, + .of_match_table = stm32_adfsdm_of_match, + }, + .probe = stm32_adfsdm_probe, +}; + +module_platform_driver(stm32_adfsdm_driver); + +MODULE_DESCRIPTION("stm32 DFSDM DAI driver"); +MODULE_AUTHOR("Arnaud Pouliquen "); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:" STM32_ADFSDM_DRV_NAME); -- cgit v1.2.3 From 9cee7972bd0c69bc05d2e2f09bccd81cc439328b Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Thu, 11 Jan 2018 11:33:26 +0100 Subject: ASoC: stm32: select IIO_BUFFER The new stm32_adfsdm driver has incomplete dependencies as shown by Kconfig: warning: (SND_SOC_STM32_DFSDM && LMP91000) selects IIO_BUFFER_CB which has unmet direct dependencies (IIO && IIO_BUFFER) sound/soc/stm/stm32_adfsdm.o: In function `stm32_adfsdm_trigger': stm32_adfsdm.c:(.text+0x8c): undefined reference to `stm32_dfsdm_get_buff_cb' stm32_adfsdm.c:(.text+0x9c): undefined reference to `stm32_dfsdm_release_buff_cb' This makes the dependency on SND_SOC_STM32_DFSDM unconditional, so we can always resolve the stm32_dfsdm_get_buff_cb/stm32_dfsdm_release_buff_cb symbols and get the implied IIO_BUFFER dependency. compile-testing on other platforms is still possible as long as that IIO driver is there. Fixes: 55da094824c4 ("ASoC: stm32: add DFSDM DAI support") Signed-off-by: Arnd Bergmann Signed-off-by: Mark Brown --- sound/soc/stm/Kconfig | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'sound') diff --git a/sound/soc/stm/Kconfig b/sound/soc/stm/Kconfig index a78f7700d489..3ad881fc40a1 100644 --- a/sound/soc/stm/Kconfig +++ b/sound/soc/stm/Kconfig @@ -30,8 +30,9 @@ config SND_SOC_STM32_SPDIFRX config SND_SOC_STM32_DFSDM tristate "SoC Audio support for STM32 DFSDM" - depends on (ARCH_STM32 && OF && STM32_DFSDM_ADC) || COMPILE_TEST + depends on ARCH_STM32 || COMPILE_TEST depends on SND_SOC + depends on STM32_DFSDM_ADC select SND_SOC_GENERIC_DMAENGINE_PCM select SND_SOC_DMIC select IIO_BUFFER_CB -- cgit v1.2.3 From 6dee6722c6065f4850eab98c2b7b9f4a08a35813 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Thu, 11 Jan 2018 11:11:51 +0000 Subject: ASoC: stm32: fix a typo in stm32_adfsdm_probe() Fix a typo, we should return PTR_ERR(priv->iio_cb) instead of PTR_ERR(priv->iio_ch). Fixes: 55da094824c4 ("ASoC: stm32: add DFSDM DAI support") Signed-off-by: Wei Yongjun Signed-off-by: Mark Brown --- sound/soc/stm/stm32_adfsdm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'sound') diff --git a/sound/soc/stm/stm32_adfsdm.c b/sound/soc/stm/stm32_adfsdm.c index af50891983c6..7306e3eca9e1 100644 --- a/sound/soc/stm/stm32_adfsdm.c +++ b/sound/soc/stm/stm32_adfsdm.c @@ -320,7 +320,7 @@ static int stm32_adfsdm_probe(struct platform_device *pdev) priv->iio_cb = iio_channel_get_all_cb(&pdev->dev, NULL, NULL); if (IS_ERR(priv->iio_cb)) - return PTR_ERR(priv->iio_ch); + return PTR_ERR(priv->iio_cb); ret = devm_snd_soc_register_platform(&pdev->dev, &stm32_adfsdm_soc_platform); -- cgit v1.2.3 From 8af5748fa48698a433ba9a1766204bda283dffa8 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Wed, 17 Jan 2018 13:48:54 -0200 Subject: ASoC: sgtl5000: Do not print error on probe deferral When the MCLK is not yet available when the codec is probed, probe deferral will happen and in this case we should not print an error message. Signed-off-by: Fabio Estevam Signed-off-by: Mark Brown --- sound/soc/codecs/sgtl5000.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'sound') diff --git a/sound/soc/codecs/sgtl5000.c b/sound/soc/codecs/sgtl5000.c index f2bb4feba3b6..633cdcfc933d 100644 --- a/sound/soc/codecs/sgtl5000.c +++ b/sound/soc/codecs/sgtl5000.c @@ -1332,10 +1332,13 @@ static int sgtl5000_i2c_probe(struct i2c_client *client, sgtl5000->mclk = devm_clk_get(&client->dev, NULL); if (IS_ERR(sgtl5000->mclk)) { ret = PTR_ERR(sgtl5000->mclk); - dev_err(&client->dev, "Failed to get mclock: %d\n", ret); /* Defer the probe to see if the clk will be provided later */ if (ret == -ENOENT) ret = -EPROBE_DEFER; + + if (ret != -EPROBE_DEFER) + dev_err(&client->dev, "Failed to get mclock: %d\n", + ret); goto disable_regs; } -- cgit v1.2.3