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ASoC: amd: Allow I2S wake event after ACP is powerd On 

ACP_PME_EN allows wake interrupt to be generated when I2S wake
feature is enabled. On turning ACP On, ACP_PME_EN gets cleared.
Setting the bit back ensures that wake event can be received
when ACP is On.

Signed-off-by: Akshu Agrawal <akshu.agrawal@amd.com>
Link: https://lore.kernel.org/r/20200226104746.208656-1-akshu.agrawal@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Akshu Agrawal 2020-02-26 16:17:44 +05:30 committed by Mark Brown
parent b2d48dde38
commit 911abf8b05
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GPG Key ID: 24D68B725D5487D0
1 changed files with 6 additions and 1 deletions
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7
sound/soc/amd/raven/pci-acp3x.c
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@ -38,8 +38,13 @@ static int acp3x_power_on(void __iomem *acp3x_base)
timeout = 0;
while (++timeout < 500) {
val = rv_readl(acp3x_base + mmACP_PGFSM_STATUS);
if (!val)
if (!val) {
/* Set PME_EN as after ACP power On,
* PME_EN gets cleared
*/
rv_writel(0x1, acp3x_base + mmACP_PME_EN);
return 0;
}
udelay(1);
}
return -ETIMEDOUT;