Commit Graph

6 Commits

Author SHA1 Message Date
Dan Carpenter cde6bcd584 ASoC: AMD: free memory on error
Static checkers complain if we don't free "adata" before returning.

Fixes: 7c31335a03 ('ASoC: AMD: add AMD ASoC ACP 2.x DMA driver')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-13 12:32:04 +00:00
Guenter Roeck 7cb1dc8109 ASoC: AMD: Add missing include file
arm:allmodconfig, s390:allmodconfig, sparc64:allmodconfig, and probably
other builds fail with

sound/soc/amd/acp-pcm-dma.c:83:2: error:
	implicit declaration of function ‘readl’
sound/soc/amd/acp-pcm-dma.c:88:2: error:
	implicit declaration of function ‘writel’

Include linux/io.h explicitly to fix the problem.

Fixes: 7c31335a03 ("ASoC: AMD: add AMD ASoC ACP 2.x DMA driver")
Cc: Maruthi Srinivas Bayyavarapu <Maruthi.Bayyavarapu@amd.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-11 13:03:58 +00:00
Maruthi Srinivas Bayyavarapu c36d9b3f6d ASoC: AMD: Manage ACP 2.x SRAM banks power
ACP SRAM banks gets turned on when ACP is powered on.
Not all banks are used for playback/capture. So, power on
required banks during audio device open and power off during
audio device close.

Signed-off-by: Maruthi Bayyavarapu <maruthi.bayyavarapu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-10 12:44:13 +00:00
Maruthi Srinivas Bayyavarapu 1927da9355 ASoC: AMD: add pm ops
genpd will power off/on ACP to manage runtime ACP PM. ACP runtime PM
hooks are added to get it deinitialized and initialized respectively,
after it is powered off/on.

When system goes to suspend when audio usecase is active, ACP will
be powered off through genpd. When it resumes, ACP needs to be
initialized and reconfigured.

Signed-off-by: Maruthi Bayyavarapu <maruthi.bayyavarapu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-10 12:44:12 +00:00
Maruthi Srinivas Bayyavarapu 7c31335a03 ASoC: AMD: add AMD ASoC ACP 2.x DMA driver
ACP IP has internal DMA controller with multiple channels which
can be programmed in cyclic/non cyclic manner. ACP can generate
interrupt upon completion of DMA transfer, if required.
The PCM driver provides the platform DMA component to ALSA core.

Signed-off-by: Maruthi Bayyavarapu <maruthi.bayyavarapu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Murali Krishna Vemuri <murali-krishna.vemuri@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-10 12:44:12 +00:00
Maruthi Srinivas Bayyavarapu 2fa86e94a3 ASoC: AMD : add ACP 2.2 register headers
These are register headers for the ACP (Audio CoProcessor) v2.2

Signed-off-by: Maruthi Bayyavarapu <maruthi.bayyavarapu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-01-10 12:44:10 +00:00