A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 02:32:09 -04:00
Code Issues Projects Releases Packages Wiki Activity

ASoC: rsnd: SSI supports DMA transfer via BUSIF

Browse source 
This patch adds BUSIF support for R-Car sound DMAEngine transfer.
The sound data will be transferred via FIFO which can cover blank time
which will happen when DMA channel is switching.

Signed-off-by: Kuninori Morimoto <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
This commit is contained in:
Kuninori Morimoto 2013-07-28 18:59:12 -07:00 • committed by Mark Brown
commit 374a528111
5 changed files with 190 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

6
include/sound/rcar_snd.h
View file

@ -36,6 +36,7 @@
#define RSND_SSI_CLK_PIN_SHARE (1 << 31)
#define RSND_SSI_CLK_FROM_ADG (1 << 30) /* clock parent is master */
#define RSND_SSI_SYNC (1 << 29) /* SSI34_sync etc */
#define RSND_SSI_DEPENDENT (1 << 28) /* SSI needs SRU/SCU */
#define RSND_SSI_PLAY (1 << 24)
@ -51,6 +52,11 @@ struct rsnd_ssi_platform_info {
u32 flags;
};
/*
* flags
*/
#define RSND_SCU_USB_HPBIF (1 << 31) /* it needs RSND_SSI_DEPENDENT */
struct rsnd_scu_platform_info {
u32 flags;
};