diff options
| author | Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> | 2022-09-20 01:57:19 +0800 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2022-09-20 10:39:23 +0530 |
| commit | 0f3c54c22ae19c1ad86afb138c45424645213a44 (patch) | |
| tree | b32eedeeb46f63d1ba7b71cabf142284d09b1d87 /drivers/soundwire | |
| parent | 0b59d4c9475893fa1fa435502c0e0cc6df879ac9 (diff) | |
| download | linux-0f3c54c22ae19c1ad86afb138c45424645213a44.tar.bz2 | |
soundwire: intel: introduce intel_shim_check_wake() helper
Add new helper before code partitioning in order to avoid direct read
from specific register. No functionality change.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20220919175721.354679-10-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/soundwire')
| -rw-r--r-- | drivers/soundwire/intel.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c index 66aab02b9323..2ca924622153 100644 --- a/drivers/soundwire/intel.c +++ b/drivers/soundwire/intel.c @@ -344,6 +344,17 @@ static void intel_shim_init(struct sdw_intel *sdw) usleep_range(10, 15); } +static int intel_shim_check_wake(struct sdw_intel *sdw) +{ + void __iomem *shim; + u16 wake_sts; + + shim = sdw->link_res->shim; + wake_sts = intel_readw(shim, SDW_SHIM_WAKESTS); + + return wake_sts & BIT(sdw->instance); +} + static void intel_shim_wake(struct sdw_intel *sdw, bool wake_enable) { void __iomem *shim = sdw->link_res->shim; @@ -1491,8 +1502,6 @@ int intel_link_process_wakeen_event(struct auxiliary_device *auxdev) struct device *dev = &auxdev->dev; struct sdw_intel *sdw; struct sdw_bus *bus; - void __iomem *shim; - u16 wake_sts; sdw = auxiliary_get_drvdata(auxdev); bus = &sdw->cdns.bus; @@ -1503,10 +1512,7 @@ int intel_link_process_wakeen_event(struct auxiliary_device *auxdev) return 0; } - shim = sdw->link_res->shim; - wake_sts = intel_readw(shim, SDW_SHIM_WAKESTS); - - if (!(wake_sts & BIT(sdw->instance))) + if (!intel_shim_check_wake(sdw)) return 0; /* disable WAKEEN interrupt ASAP to prevent interrupt flood */ |