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-rw-r--r--Documentation/sound/alsa-configuration.rst7
-rw-r--r--Documentation/sound/hd-audio/models.rst2
-rw-r--r--Documentation/sound/soc/codec.rst8
-rw-r--r--Documentation/sound/soc/platform.rst30
4 files changed, 26 insertions, 21 deletions
diff --git a/Documentation/sound/alsa-configuration.rst b/Documentation/sound/alsa-configuration.rst
index ab5761148163..4d83c1c0ca04 100644
--- a/Documentation/sound/alsa-configuration.rst
+++ b/Documentation/sound/alsa-configuration.rst
@@ -2224,6 +2224,13 @@ quirk_alias
Quirk alias list, pass strings like ``0123abcd:5678beef``, which
applies the existing quirk for the device 5678:beef to a new
device 0123:abcd.
+use_vmalloc
+ Use vmalloc() for allocations of the PCM buffers (default: yes).
+ For architectures with non-coherent memory like ARM or MIPS, the
+ mmap access may give inconsistent results with vmalloc'ed
+ buffers. If mmap is used on such architectures, turn off this
+ option, so that the DMA-coherent buffers are allocated and used
+ instead.
This module supports multiple devices, autoprobe and hotplugging.
diff --git a/Documentation/sound/hd-audio/models.rst b/Documentation/sound/hd-audio/models.rst
index 1fee5a4f6660..7c2d37571af0 100644
--- a/Documentation/sound/hd-audio/models.rst
+++ b/Documentation/sound/hd-audio/models.rst
@@ -263,6 +263,8 @@ hp-dock
HP dock support
mute-led-gpio
Mute LED control via GPIO
+hp-mic-fix
+ Fix for headset mic pin on HP boxes
STAC9200
========
diff --git a/Documentation/sound/soc/codec.rst b/Documentation/sound/soc/codec.rst
index 240770ea761e..8a9737eb7597 100644
--- a/Documentation/sound/soc/codec.rst
+++ b/Documentation/sound/soc/codec.rst
@@ -179,12 +179,12 @@ i.e.
static int wm8974_mute(struct snd_soc_dai *dai, int mute)
{
- struct snd_soc_codec *codec = dai->codec;
- u16 mute_reg = snd_soc_read(codec, WM8974_DAC) & 0xffbf;
+ struct snd_soc_component *component = dai->component;
+ u16 mute_reg = snd_soc_component_read32(component, WM8974_DAC) & 0xffbf;
if (mute)
- snd_soc_write(codec, WM8974_DAC, mute_reg | 0x40);
+ snd_soc_component_write(component, WM8974_DAC, mute_reg | 0x40);
else
- snd_soc_write(codec, WM8974_DAC, mute_reg);
+ snd_soc_component_write(component, WM8974_DAC, mute_reg);
return 0;
}
diff --git a/Documentation/sound/soc/platform.rst b/Documentation/sound/soc/platform.rst
index 02c93a8b9c3b..c1badea53d3d 100644
--- a/Documentation/sound/soc/platform.rst
+++ b/Documentation/sound/soc/platform.rst
@@ -23,30 +23,26 @@ The platform DMA driver optionally supports the following ALSA operations:-
};
The platform driver exports its DMA functionality via struct
-snd_soc_platform_driver:-
+snd_soc_component_driver:-
::
- struct snd_soc_platform_driver {
- char *name;
+ struct snd_soc_component_driver {
+ const char *name;
- int (*probe)(struct platform_device *pdev);
- int (*remove)(struct platform_device *pdev);
- int (*suspend)(struct platform_device *pdev, struct snd_soc_cpu_dai *cpu_dai);
- int (*resume)(struct platform_device *pdev, struct snd_soc_cpu_dai *cpu_dai);
+ ...
+ int (*probe)(struct snd_soc_component *);
+ void (*remove)(struct snd_soc_component *);
+ int (*suspend)(struct snd_soc_component *);
+ int (*resume)(struct snd_soc_component *);
/* pcm creation and destruction */
- int (*pcm_new)(struct snd_card *, struct snd_soc_codec_dai *, struct snd_pcm *);
+ int (*pcm_new)(struct snd_soc_pcm_runtime *);
void (*pcm_free)(struct snd_pcm *);
- /*
- * For platform caused delay reporting.
- * Optional.
- */
- snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *,
- struct snd_soc_dai *);
-
- /* platform stream ops */
- struct snd_pcm_ops *pcm_ops;
+ ...
+ const struct snd_pcm_ops *ops;
+ const struct snd_compr_ops *compr_ops;
+ ...
};
Please refer to the ALSA driver documentation for details of audio DMA.