renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-16 09:13:55 +08:00
Code

ASoC: Blackfin I2S: fix resuming when device hasn't been used

Browse Source 
If the sound system hasn't been utilized yet and we suspend, then we
attempt to save/restore using state that doesn't exist.  So use a global
handle instead to reconfigure properly.

Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Cliff Cai 2009-09-16 20:25:12 -04:00 committed by Mark Brown
parent fab19bae0c
commit ad80efc469
1 changed files with 7 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
sound/soc/blackfin/bf5xx-i2s.c
View File

@ -237,36 +237,31 @@ static void bf5xx_i2s_remove(struct platform_device *pdev,
#ifdef CONFIG_PM
static int bf5xx_i2s_suspend(struct snd_soc_dai *dai)
{
struct sport_device *sport =
(struct sport_device *)dai->private_data;
pr_debug("%s : sport %d\n", __func__, dai->id);
if (!dai->active)
return 0;
if (dai->capture.active)
sport_rx_stop(sport);
sport_rx_stop(sport_handle);
if (dai->playback.active)
sport_tx_stop(sport);
sport_tx_stop(sport_handle);
return 0;
}
static int bf5xx_i2s_resume(struct snd_soc_dai *dai)
{
int ret;
struct sport_device *sport =
(struct sport_device *)dai->private_data;
pr_debug("%s : sport %d\n", __func__, dai->id);
if (!dai->active)
return 0;
ret = sport_config_rx(sport, RFSR | RCKFE, RSFSE|0x1f, 0, 0);
ret = sport_config_rx(sport_handle, bf5xx_i2s.rcr1,
bf5xx_i2s.rcr2, 0, 0);
if (ret) {
pr_err("SPORT is busy!\n");
return -EBUSY;
}
ret = sport_config_tx(sport, TFSR | TCKFE, TSFSE|0x1f, 0, 0);
ret = sport_config_tx(sport_handle, bf5xx_i2s.tcr1,
bf5xx_i2s.tcr2, 0, 0);
if (ret) {
pr_err("SPORT is busy!\n");
return -EBUSY;