From b0e3b0a7078d71455747025e7deee766d4d43432 Mon Sep 17 00:00:00 2001 From: Sugar Zhang Date: Thu, 23 Sep 2021 18:50:46 +0800 Subject: ASoC: dmaengine: Introduce module option prealloc_buffer_size_kbytes Currently, The fixed 512KB prealloc buffer size is too larger for tiny memory kernel (such as 16MB memory). This patch adds the module option "prealloc_buffer_size_kbytes" to specify prealloc buffer size. It's suitable for cards which use the generic dmaengine pcm driver with no config. Signed-off-by: Sugar Zhang Link: https://lore.kernel.org/r/1632394246-59341-1-git-send-email-sugar.zhang@rock-chips.com Signed-off-by: Mark Brown --- Documentation/sound/alsa-configuration.rst | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'Documentation/sound/alsa-configuration.rst') diff --git a/Documentation/sound/alsa-configuration.rst b/Documentation/sound/alsa-configuration.rst index 65f61695f561..34888d4fc4a8 100644 --- a/Documentation/sound/alsa-configuration.rst +++ b/Documentation/sound/alsa-configuration.rst @@ -100,6 +100,15 @@ amidi_map MIDI device number maps assigned to the 2st OSS device; Default: 1 +Module snd-soc-core +------------------- + +The soc core module. It is used by all ALSA card drivers. +It takes the following options which have global effects. + +prealloc_buffer_size_kbytes + Specify prealloc buffer size in kbytes (default: 512). + Common parameters for top sound card modules -------------------------------------------- -- cgit v1.2.3