OrgACRN
/
sof
mirror of https://github.com/thesofproject/sof.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

ssp: irq: fix handler comment and remove FIFO empty loop 

Comment is wrong and FIFO empty not needed in IRQ handler.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
This commit is contained in:
Liam Girdwood 2017-09-20 23:15:06 +01:00
parent c00e48f22c
commit 90880bd287
1 changed files with 2 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
src/drivers/ssp.c
View File

@ -370,19 +370,14 @@ static int ssp_trigger(struct dai *dai, int cmd, int direction)
return 0;
}
/* The IRQ handler allows the SSP port to drain the playback FIFO to make sure
* every sample has been played */
/* clear IRQ sources atm */
static void ssp_irq_handler(void *data)
{
struct dai *dai = data;
int i;
trace_ssp("irq");
trace_value(ssp_read(dai, SSSR));
/* empty Rx FIFO */
for (i = 0; i < 16; i++)
ssp_read(dai, SSDR);
/* clear IRQ */
ssp_write(dai, SSSR, ssp_read(dai, SSSR));
platform_interrupt_clear(ssp_irq(dai), 1);