linux.git/Documentation/sound/kernel-api, branch v5.5

ALSA: docs: Update about the new PCM sync_stop ops

2019-11-20T18:39:54+00:00

Add the documentation about the new PCM sync_stop ops and
card->sync_irq field.

Link: https://lore.kernel.org/r/20191117085308.23915-9-tiwai@suse.de
Signed-off-by: Takashi Iwai

ALSA: docs: Update document about the default PCM ioctl ops

2019-11-20T18:39:54+00:00

Mention that it's completely optional now.

Link: https://lore.kernel.org/r/20191117085308.23915-5-tiwai@suse.de
Signed-off-by: Takashi Iwai

ALSA: docs: Update for managed buffer allocation mode

2019-11-20T18:39:54+00:00

Update the documentation for the newly introduced managed buffer
allocation mode accordingly.  The old preallocation is no longer
recommended.

Link: https://lore.kernel.org/r/20191117085308.23915-3-tiwai@suse.de
Signed-off-by: Takashi Iwai

ALSA: docs: Remove snd_dma_pci_data() usage in documentation

2019-11-06T14:47:43+00:00

The macro will be removed soon later, so update the documentation to
reflect that as well.

Link: https://lore.kernel.org/r/20191105151856.10785-25-tiwai@suse.de
Signed-off-by: Takashi Iwai

ALSA: docs: Update documentation about SG- and vmalloc-buffers

2019-11-06T14:43:33+00:00

The recent changes simplified the required setup for SG- and vmalloc-
buffers.  Update the documentation accordingly.

Link: https://lore.kernel.org/r/20191105080138.1260-5-tiwai@suse.de
Signed-off-by: Takashi Iwai

ALSA: memalloc: Allow NULL device for SNDRV_DMA_TYPE_CONTINUOUS type

2019-11-06T14:43:18+00:00

Currently we pass the artificial device pointer to the allocation
helper in the case of SNDRV_DMA_TYPE_CONTINUOUS for passing the GFP
flags.  But all common cases are the allocations with GFP_KERNEL, and
it's messy to put this in each place.

In this patch, the memalloc core helper is changed to accept the NULL
device pointer and it treats as the default mode, GFP_KERNEL, so that
all callers can omit the complex argument but just leave NULL.

Link: https://lore.kernel.org/r/20191105080138.1260-2-tiwai@suse.de
Signed-off-by: Takashi Iwai

ALSA: doc: my_chip has no element ioport

2019-04-03T09:55:47+00:00

chip->ioport is dereferenced in two places, but the struct is
defined as follows:

struct mychip {
	struct snd_card *card;
	struct pci_dev *pci;

	unsigned long port;
	int irq;
};

Signed-off-by: Christina Quast 
Signed-off-by: Takashi Iwai

ALSA: isa: Avoid passing NULL to memory allocators

2019-02-01T16:16:40+00:00

We used to pass NULL to memory allocators for ISA devices due to
historical reasons.  But we prefer rather a proper device object to be
assigned, so let's fix it by replacing snd_dma_isa_data() call with
card->dev reference, and kill snd_dma_isa_data() definition.

Reviewed-by: Christoph Hellwig 
Signed-off-by: Takashi Iwai

ALSA: doc: Update the description about PCM suspend procedure

2019-01-15T16:48:17+00:00

The PCM suspend procedure was changed for drivers, so that they don't
have to call snd_pcm_suspend*() in each callback any longer.  Update
the documentation to adapt the changes.

Reviewed-by: Jaroslav Kysela 
Signed-off-by: Takashi Iwai

ALSA: doc: Brush up the old writing-an-alsa-driver

2018-10-18T08:30:01+00:00

Slightly brushing up and throw the old dust away from my ancient
writing-an-alsa-driver document.  The contents aren't changed so much
but the obsoleted parts are dropped.

Also, remove the date and the version number.  It's useless.

Reviewed-by: Takashi Sakamoto 
Signed-off-by: Takashi Iwai