June 2017 - Alsa-devel - mailman.alsa-project.org

[alsa-devel] [PATCH] oss: Fix a sleep-in-atomic bug in midi_outc
by Jia-Ju Bai 19 Jun '17

19 Jun '17

The driver may sleep under a spin lock, and the function call path is: midi_outc (acquire the lock by spin_lock_irqsave) oss_broken_sleep_on schedule_timeout --> may sleep To fix it, the lock is released before oss_broken_sleep_on, and the lock is acquired again after this function. Signed-off-by: Jia-Ju Bai <baijiaju1990(a)163.com> --- sound/oss/sequencer.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/oss/sequencer.c b/sound/oss/sequencer.c index f19da4b..3d95d752 100644 --- a/sound/oss/sequencer.c +++ b/sound/oss/sequencer.c @@ -1211,7 +1211,9 @@ static void midi_outc(int dev, unsigned char data) spin_lock_irqsave(&lock,flags); while (n && !midi_devs[dev]->outputc(dev, data)) { + spin_unlock_irqrestore(&lock, flags); oss_broken_sleep_on(&seq_sleeper, HZ/25); + spin_lock_irqsave(&lock, flags); n--; } spin_unlock_irqrestore(&lock,flags); -- 1.7.9.5

1 0

[alsa-devel] [PATCH 2] ALSA: pcm: Fix possible inconsistent appl_ptr update via mmap
by Takashi Iwai 18 Jun '17

18 Jun '17

The ALSA PCM core refers to the appl_ptr value stored on the mmapped page that is shared between kernel and user-space. Although the reference is performed in the PCM stream lock, it doesn't guarantee the atomic access when the value gets updated concurrently from the user-space on another CPU. In most of codes, this is no big problem, but still there are a few places that may result in slight inconsistencies because they access runtime->control->appl_ptr multiple times; that is, the second read might be a different value from the first value. It can be even backward or jumping, as we have no control for it. Hence, the calculation may give an unexpected value. Luckily, there is no security vulnerability by that, as far as I've checked. But still we should address it. This patch tries to reduce such possible cases. The fix is simple -- we just read once, store it to a local variable and use it for the rest calculations. The READ_ONCE() macro is used for it in order to avoid the ill-effect by possible compiler optimizations. Reviewed-by: Takashi Sakamoto <o-takashi(a)sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai(a)suse.de> --- v1->v2: Use proper READ_ONCE() macro. sound/core/pcm_lib.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c index 461c21f21caf..415346b84ff8 100644 --- a/sound/core/pcm_lib.c +++ b/sound/core/pcm_lib.c @@ -65,15 +65,16 @@ void snd_pcm_playback_silence(struct snd_pcm_substream *substream, snd_pcm_ufram if (runtime->silence_size < runtime->boundary) { snd_pcm_sframes_t noise_dist, n; - if (runtime->silence_start != runtime->control->appl_ptr) { - n = runtime->control->appl_ptr - runtime->silence_start; + snd_pcm_uframes_t appl_ptr = READ_ONCE(runtime->control->appl_ptr); + if (runtime->silence_start != appl_ptr) { + n = appl_ptr - runtime->silence_start; if (n < 0) n += runtime->boundary; if ((snd_pcm_uframes_t)n < runtime->silence_filled) runtime->silence_filled -= n; else runtime->silence_filled = 0; - runtime->silence_start = runtime->control->appl_ptr; + runtime->silence_start = appl_ptr; } if (runtime->silence_filled >= runtime->buffer_size) return; @@ -2203,7 +2204,9 @@ snd_pcm_sframes_t __snd_pcm_lib_xfer(struct snd_pcm_substream *substream, continue; /* draining */ } frames = size > avail ? avail : size; - cont = runtime->buffer_size - runtime->control->appl_ptr % runtime->buffer_size; + appl_ptr = READ_ONCE(runtime->control->appl_ptr); + appl_ofs = appl_ptr % runtime->buffer_size; + cont = runtime->buffer_size - appl_ofs; if (frames > cont) frames = cont; if (snd_BUG_ON(!frames)) { @@ -2211,8 +2214,6 @@ snd_pcm_sframes_t __snd_pcm_lib_xfer(struct snd_pcm_substream *substream, snd_pcm_stream_unlock_irq(substream); return -EINVAL; } - appl_ptr = runtime->control->appl_ptr; - appl_ofs = appl_ptr % runtime->buffer_size; snd_pcm_stream_unlock_irq(substream); err = writer(substream, appl_ofs, data, offset, frames, transfer); -- 2.13.1

1 0

[alsa-devel] [PATCH v1 0/2] Patches to add support pdm controller for rk3328
by Sugar Zhang 18 Jun '17

18 Jun '17

These patches to add support pdm for rk3328 socs. Sugar Zhang (2): ASoC: rockchip: add support for pdm controller arm64: dts: rk3328: add pdm node .../devicetree/bindings/sound/rockchip,pdm.txt | 39 ++ arch/arm64/boot/dts/rockchip/rk3328.dtsi | 55 +++ sound/soc/rockchip/Kconfig | 9 + sound/soc/rockchip/Makefile | 2 + sound/soc/rockchip/rockchip_pdm.c | 516 +++++++++++++++++++++ sound/soc/rockchip/rockchip_pdm.h | 83 ++++ 6 files changed, 704 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/rockchip,pdm.txt create mode 100644 sound/soc/rockchip/rockchip_pdm.c create mode 100644 sound/soc/rockchip/rockchip_pdm.h -- 1.9.1

3 3

[alsa-devel] [PATCH 0/3] ALSA: firewire: use .ack callback of PCM operation for packet processing
by Takashi Sakamoto 18 Jun '17

18 Jun '17

Hi, In recent work for ALSA PCM core, driver-side implementation for 'struct snd_pcm_ops.ack' is called when appl_ptr in intermediate PCM buffer is changed, except for a case that mapped page frame is used for the buffer and userspace applications doesn't voluntarily notify the change. In packet-oriented drivers, this callback is useful for the timing to queue packets for data transmission with burstness. If things works well, reduction of latency between PCM frame queueing and actual data transmission. This patchset is for the purpose, additionally including minor code refactoring. Major use case of ALSA PCM interface is memory mapped I/O and this patchset adds no advantage in this case due to design of the .ack callback, as I described. Takashi Sakamoto (2): ALSA: firewire: process packets in 'struct snd_pcm_ops.ack' callback ALSA: fireface: constify ALSA specific operations sound/firewire/amdtp-stream.c | 19 ++++++++++ sound/firewire/amdtp-stream.h | 1 + sound/firewire/bebob/bebob_pcm.c | 16 +++++++++ sound/firewire/dice/dice-pcm.c | 18 ++++++++++ sound/firewire/digi00x/digi00x-pcm.c | 16 +++++++++ sound/firewire/fireface/ff-midi.c | 22 ++++++------ sound/firewire/fireface/ff-pcm.c | 62 +++++++++++++++++++------------- sound/firewire/fireworks/fireworks_pcm.c | 16 +++++++++ sound/firewire/motu/motu-pcm.c | 16 +++++++++ sound/firewire/oxfw/oxfw-pcm.c | 16 +++++++++ sound/firewire/tascam/tascam-pcm.c | 16 +++++++++ 11 files changed, 182 insertions(+), 36 deletions(-) -- 2.11.0

3 22

[alsa-devel] [PATCH v1] ASoC: rt5677: Hide platform data in the module sources
by Andy Shevchenko 18 Jun '17

18 Jun '17

There is no user of legacy platform data. Remove separate header and hide its content inside module sources. Signed-off-by: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> --- include/sound/rt5677.h | 45 --------------------------------------------- sound/soc/codecs/rt5677.c | 27 +++++++++++++++++---------- sound/soc/codecs/rt5677.h | 30 +++++++++++++++++++++++++++++- 3 files changed, 46 insertions(+), 56 deletions(-) delete mode 100644 include/sound/rt5677.h diff --git a/include/sound/rt5677.h b/include/sound/rt5677.h deleted file mode 100644 index a6207043ac3c..000000000000 --- a/include/sound/rt5677.h +++ /dev/null @@ -1,45 +0,0 @@ -/* - * linux/sound/rt5677.h -- Platform data for RT5677 - * - * Copyright 2013 Realtek Semiconductor Corp. - * Author: Oder Chiou <oder_chiou(a)realtek.com> - * - * 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. - */ - -#ifndef __LINUX_SND_RT5677_H -#define __LINUX_SND_RT5677_H - -enum rt5677_dmic2_clk { - RT5677_DMIC_CLK1 = 0, - RT5677_DMIC_CLK2 = 1, -}; - - -struct rt5677_platform_data { - /* IN1/IN2/LOUT1/LOUT2/LOUT3 can optionally be differential */ - bool in1_diff; - bool in2_diff; - bool lout1_diff; - bool lout2_diff; - bool lout3_diff; - /* DMIC2 clock source selection */ - enum rt5677_dmic2_clk dmic2_clk_pin; - - /* configures GPIO, 0 - floating, 1 - pulldown, 2 - pullup */ - u8 gpio_config[6]; - - /* jd1 can select 0 ~ 3 as OFF, GPIO1, GPIO2 and GPIO3 respectively */ - unsigned int jd1_gpio; - /* jd2 and jd3 can select 0 ~ 3 as - OFF, GPIO4, GPIO5 and GPIO6 respectively */ - unsigned int jd2_gpio; - unsigned int jd3_gpio; - - /* Set MICBIAS1 VDD 1v8 or 3v3 */ - bool micbias1_vdd_3v3; -}; - -#endif diff --git a/sound/soc/codecs/rt5677.c b/sound/soc/codecs/rt5677.c index 36e530a36c82..29c94d1ff56c 100644 --- a/sound/soc/codecs/rt5677.c +++ b/sound/soc/codecs/rt5677.c @@ -21,6 +21,7 @@ #include <linux/platform_device.h> #include <linux/spi/spi.h> #include <linux/firmware.h> +#include <linux/of_device.h> #include <linux/property.h> #include <sound/core.h> #include <sound/pcm.h> @@ -5019,14 +5020,12 @@ static const struct regmap_config rt5677_regmap = { }; static const struct i2c_device_id rt5677_i2c_id[] = { - { "rt5677", RT5677 }, - { "rt5676", RT5676 }, { } }; MODULE_DEVICE_TABLE(i2c, rt5677_i2c_id); static const struct of_device_id rt5677_of_match[] = { - { .compatible = "realtek,rt5677", }, + { .compatible = "realtek,rt5677", RT5677 }, { } }; MODULE_DEVICE_TABLE(of, rt5677_of_match); @@ -5147,7 +5146,6 @@ static void rt5677_free_irq(struct i2c_client *i2c) static int rt5677_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { - struct rt5677_platform_data *pdata = dev_get_platdata(&i2c->dev); struct rt5677_priv *rt5677; int ret; unsigned int val; @@ -5159,16 +5157,25 @@ static int rt5677_i2c_probe(struct i2c_client *i2c, i2c_set_clientdata(i2c, rt5677); - rt5677->type = id->driver_data; + if (i2c->dev.of_node) { + const struct of_device_id *match_id; + + match_id = of_match_device(rt5677_of_match, &i2c->dev); + if (match_id) + rt5677->type = (enum rt5677_type)match_id->data; - if (pdata) - rt5677->pdata = *pdata; - else if (i2c->dev.of_node) rt5677_read_device_properties(rt5677, &i2c->dev); - else if (ACPI_HANDLE(&i2c->dev)) + } else if (ACPI_HANDLE(&i2c->dev)) { + const struct acpi_device_id *acpi_id; + + acpi_id = acpi_match_device(rt5677_acpi_match, &i2c->dev); + if (acpi_id) + rt5677->type = (enum rt5677_type)acpi_id->driver_data; + rt5677_read_acpi_properties(rt5677, &i2c->dev); - else + } else { return -EINVAL; + } /* pow-ldo2 and reset are optional. The codec pins may be statically * connected on the board without gpios. If the gpio device property diff --git a/sound/soc/codecs/rt5677.h b/sound/soc/codecs/rt5677.h index d46855a42c40..97239973edc4 100644 --- a/sound/soc/codecs/rt5677.h +++ b/sound/soc/codecs/rt5677.h @@ -12,7 +12,6 @@ #ifndef __RT5677_H__ #define __RT5677_H__ -#include <sound/rt5677.h> #include <linux/gpio/driver.h> #include <linux/gpio/consumer.h> @@ -1761,6 +1760,35 @@ enum { RT5677_I2S4_SOURCE = (0x1 << 18), }; +enum rt5677_dmic2_clk { + RT5677_DMIC_CLK1 = 0, + RT5677_DMIC_CLK2 = 1, +}; + +struct rt5677_platform_data { + /* IN1/IN2/LOUT1/LOUT2/LOUT3 can optionally be differential */ + bool in1_diff; + bool in2_diff; + bool lout1_diff; + bool lout2_diff; + bool lout3_diff; + /* DMIC2 clock source selection */ + enum rt5677_dmic2_clk dmic2_clk_pin; + + /* configures GPIO, 0 - floating, 1 - pulldown, 2 - pullup */ + u8 gpio_config[6]; + + /* jd1 can select 0 ~ 3 as OFF, GPIO1, GPIO2 and GPIO3 respectively */ + unsigned int jd1_gpio; + /* jd2 and jd3 can select 0 ~ 3 as + OFF, GPIO4, GPIO5 and GPIO6 respectively */ + unsigned int jd2_gpio; + unsigned int jd3_gpio; + + /* Set MICBIAS1 VDD 1v8 or 3v3 */ + bool micbias1_vdd_3v3; +}; + struct rt5677_priv { struct snd_soc_codec *codec; struct rt5677_platform_data pdata; -- 2.11.0

2 1

[alsa-devel] [PATCH] ASoC: intel: Use kvzalloc() for suspend buffers
by Takashi Iwai 16 Jun '17

16 Jun '17

Intel SST driver allocates lots of pages at suspend for saving the firmware states, and this may occasionally lead to the allocation error due to the high order, ending up with the suspend failure. Use kvzalloc() so that it can fall back to vmalloc() gracefully. Signed-off-by: Takashi Iwai <tiwai(a)suse.de> --- sound/soc/intel/atom/sst/sst.c | 22 +++++++++++----------- sound/soc/intel/atom/sst/sst.h | 8 ++++---- 2 files changed, 15 insertions(+), 15 deletions(-) diff --git a/sound/soc/intel/atom/sst/sst.c b/sound/soc/intel/atom/sst/sst.c index f9ba71315e33..b4aa5b6f79d9 100644 --- a/sound/soc/intel/atom/sst/sst.c +++ b/sound/soc/intel/atom/sst/sst.c @@ -499,23 +499,23 @@ static int intel_sst_suspend(struct device *dev) fw_save = kzalloc(sizeof(*fw_save), GFP_KERNEL); if (!fw_save) return -ENOMEM; - fw_save->iram = kzalloc(ctx->iram_end - ctx->iram_base, GFP_KERNEL); + fw_save->iram = kvzalloc(ctx->iram_end - ctx->iram_base, GFP_KERNEL); if (!fw_save->iram) { ret = -ENOMEM; goto iram; } - fw_save->dram = kzalloc(ctx->dram_end - ctx->dram_base, GFP_KERNEL); + fw_save->dram = kvzalloc(ctx->dram_end - ctx->dram_base, GFP_KERNEL); if (!fw_save->dram) { ret = -ENOMEM; goto dram; } - fw_save->sram = kzalloc(SST_MAILBOX_SIZE, GFP_KERNEL); + fw_save->sram = kvzalloc(SST_MAILBOX_SIZE, GFP_KERNEL); if (!fw_save->sram) { ret = -ENOMEM; goto sram; } - fw_save->ddr = kzalloc(ctx->ddr_end - ctx->ddr_base, GFP_KERNEL); + fw_save->ddr = kvzalloc(ctx->ddr_end - ctx->ddr_base, GFP_KERNEL); if (!fw_save->ddr) { ret = -ENOMEM; goto ddr; @@ -530,11 +530,11 @@ static int intel_sst_suspend(struct device *dev) ctx->ops->reset(ctx); return 0; ddr: - kfree(fw_save->sram); + kvfree(fw_save->sram); sram: - kfree(fw_save->dram); + kvfree(fw_save->dram); dram: - kfree(fw_save->iram); + kvfree(fw_save->iram); iram: kfree(fw_save); return ret; @@ -562,10 +562,10 @@ static int intel_sst_resume(struct device *dev) memcpy32_toio(ctx->mailbox, fw_save->sram, SST_MAILBOX_SIZE); memcpy32_toio(ctx->ddr, fw_save->ddr, ctx->ddr_end - ctx->ddr_base); - kfree(fw_save->sram); - kfree(fw_save->dram); - kfree(fw_save->iram); - kfree(fw_save->ddr); + kvfree(fw_save->sram); + kvfree(fw_save->dram); + kvfree(fw_save->iram); + kvfree(fw_save->ddr); kfree(fw_save); block = sst_create_block(ctx, 0, FW_DWNL_ID); diff --git a/sound/soc/intel/atom/sst/sst.h b/sound/soc/intel/atom/sst/sst.h index 5c9a51cc77aa..2ac1aa8e13d1 100644 --- a/sound/soc/intel/atom/sst/sst.h +++ b/sound/soc/intel/atom/sst/sst.h @@ -338,10 +338,10 @@ struct sst_shim_regs64 { }; struct sst_fw_save { - void *iram; - void *dram; - void *sram; - void *ddr; + void *iram; /* allocated via kvmalloc() */ + void *dram; /* allocated via kvmalloc() */ + void *sram; /* allocated via kvmalloc() */ + void *ddr; /* allocated via kvmalloc() */ }; /** -- 2.13.1

2 1

[alsa-devel] [PATCH v2 0/3] ASoC: rt5677: Move platform code to where it belongs
by Andy Shevchenko 16 Jun '17

16 Jun '17

There are few issues with current approach: - ACPI enumeration should be done by IDs, and not by instances - Platform code with board related stuff should reside in corresponding module Fix those issues here. Andy Shevchenko (3): ASoC: rt5677: Introduce proper table for ACPI enumeration ASoC: rt5677: Move platform code to board file ASoC: Intel: bdw-rt5677: Switch to devm_acpi_dev_add_driver_gpios() sound/soc/codecs/rt5677.c | 32 +++++++------------------------- sound/soc/intel/boards/bdw-rt5677.c | 26 ++++++++++++++++++++++++++ 2 files changed, 33 insertions(+), 25 deletions(-) -- 2.11.0

2 6

[alsa-devel] [PATCH v2] ASoC: ak4613: add hw_constraint rule for Sampling Rate
by Kuninori Morimoto 16 Jun '17

16 Jun '17

From: Kuninori Morimoto <kuninori.morimoto.gx(a)renesas.com> Current ak4613 accepts all range of Sampling Rate, but it depends on inputed master clock. This patch adds hw constraint rule for it. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx(a)renesas.com> Tested-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx(a)renesas.com> --- v1 -> v2 - Merged v1's [1/2][2/2] into this patch. - Removed CKS settings (= was [1/2]). It was Master mode settings which is not yet supported - tidyup ak4613_hw_constraints() method sound/soc/codecs/ak4613.c | 61 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) diff --git a/sound/soc/codecs/ak4613.c b/sound/soc/codecs/ak4613.c index 27c44c7..690edeb 100644 --- a/sound/soc/codecs/ak4613.c +++ b/sound/soc/codecs/ak4613.c @@ -94,6 +94,8 @@ struct ak4613_interface { struct ak4613_priv { struct mutex lock; const struct ak4613_interface *iface; + struct snd_pcm_hw_constraint_list constraint; + unsigned int sysclk; unsigned int fmt; u8 oc; @@ -252,6 +254,50 @@ static void ak4613_dai_shutdown(struct snd_pcm_substream *substream, mutex_unlock(&priv->lock); } +static void ak4613_hw_constraints(struct ak4613_priv *priv, + struct snd_pcm_runtime *runtime) +{ + static const unsigned int ak4613_rates[] = { + 32000, + 44100, + 48000, + 64000, + 88200, + 96000, + 176400, + 192000, + }; + struct snd_pcm_hw_constraint_list *constraint = &priv->constraint; + unsigned int fs; + int i; + + constraint->list = ak4613_rates; + constraint->mask = 0; + constraint->count = 0; + + /* + * Slave Mode + * Normal: [32kHz, 48kHz] : 256fs,384fs or 512fs + * Double: [64kHz, 96kHz] : 256fs + * Quad : [128kHz,192kHz]: 128fs + * + * Master mode + * Normal: [32kHz, 48kHz] : 256fs or 512fs + * Double: [64kHz, 96kHz] : 256fs + * Quad : [128kHz,192kHz]: 128fs + */ + for (i = 0; i < ARRAY_SIZE(ak4613_rates); i++) { + /* minimum fs on each range */ + fs = (ak4613_rates[i] <= 96000) ? 256 : 128; + + if (priv->sysclk >= ak4613_rates[i] * fs) + constraint->count = i + 1; + } + + snd_pcm_hw_constraint_list(runtime, 0, + SNDRV_PCM_HW_PARAM_RATE, constraint); +} + static int ak4613_dai_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { @@ -260,6 +306,19 @@ static int ak4613_dai_startup(struct snd_pcm_substream *substream, priv->cnt++; + ak4613_hw_constraints(priv, substream->runtime); + + return 0; +} + +static int ak4613_dai_set_sysclk(struct snd_soc_dai *codec_dai, + int clk_id, unsigned int freq, int dir) +{ + struct snd_soc_codec *codec = codec_dai->codec; + struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec); + + priv->sysclk = freq; + return 0; } @@ -411,6 +470,7 @@ static int ak4613_set_bias_level(struct snd_soc_codec *codec, static const struct snd_soc_dai_ops ak4613_dai_ops = { .startup = ak4613_dai_startup, .shutdown = ak4613_dai_shutdown, + .set_sysclk = ak4613_dai_set_sysclk, .set_fmt = ak4613_dai_set_fmt, .hw_params = ak4613_dai_hw_params, }; @@ -529,6 +589,7 @@ static int ak4613_i2c_probe(struct i2c_client *i2c, priv->iface = NULL; priv->cnt = 0; + priv->sysclk = 0; mutex_init(&priv->lock); -- 1.9.1

2 1

[alsa-devel] [PATCH 0/2] ASoC: simple-card-utils: add asoc_simple_card_of_parse_widgets()
by Kuninori Morimoto 16 Jun '17

16 Jun '17

Hi Mark Simple/OF-Audio card are using same DT properties, but not using same functions for it. Now, simple-card is only supporting "widgets" feature. I hope it will be supported on simple-scu/of-audio/of-audio-scu card too (I'm not widgets user, thus, I can't test). Then, DT properties needs to be shared with all Simple/OF-Audio cards. This means if needs common function on simple-card-utils. Currently only 1 user exist, thus, this is a little bit aggressive, but encapsulation is one of simple card util's purpose. This patches adds common widgets function on utils, and use it from simple-card. Kuninori Morimoto (2): ASoC: simple-card-utils: add asoc_simple_card_of_parse_widgets() ASoC: simple-card: use asoc_simple_card_of_parse_widgets() include/sound/simple_card_utils.h | 2 ++ sound/soc/generic/simple-card-utils.c | 19 +++++++++++++++++++ sound/soc/generic/simple-card.c | 10 +++------- 3 files changed, 24 insertions(+), 7 deletions(-) -- 1.9.1

2 4

[alsa-devel] [PATCH 0/2] ASoC: stm32: sai: Add H7 support
by olivier moysan 16 Jun '17

16 Jun '17

This patch-set adds support of the Serial Audio Interface (SAI) IP on H7 STM32 platform family. olivier moysan (2): dt-bindings: stm32: add h7 support for sai ASoC: stm32: sai: add h7 support .../devicetree/bindings/sound/st,stm32-sai.txt | 18 ++--- sound/soc/stm/stm32_sai.c | 13 ++- sound/soc/stm/stm32_sai.h | 72 +++++++++++++++-- sound/soc/stm/stm32_sai_sub.c | 92 ++++++++++++++++++---- 4 files changed, 164 insertions(+), 31 deletions(-) -- 1.9.1

2 4