Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-09-21 15:33:19 +00:00
Code Issues Packages Projects Releases Wiki Activity

soundwire: intel_ace2x: enable wake support

Browse Source 
The WAKEEN and WAKESTS registers were moved to the per-link SHIM_VS
area.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20230515071042.2038-18-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Pierre-Louis Bossart 2023-05-15 15:10:33 +08:00 committed by Vinod Koul
parent f90ba30170
commit b8e39bc4c2
1 changed files with 38 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

38
drivers/soundwire/intel_ace2x.c
View File

@ -31,6 +31,41 @@ static void intel_shim_vs_init(struct sdw_intel *sdw)
usleep_range(10, 15); usleep_range(10, 15);
} }
static int intel_shim_check_wake(struct sdw_intel *sdw)
{
void __iomem *shim_vs;
u16 wake_sts;
shim_vs = sdw->link_res->shim_vs;
wake_sts = intel_readw(shim_vs, SDW_SHIM2_INTEL_VS_WAKESTS);
return wake_sts & SDW_SHIM2_INTEL_VS_WAKEEN_PWS;
}
static void intel_shim_wake(struct sdw_intel *sdw, bool wake_enable)
{
void __iomem *shim_vs = sdw->link_res->shim_vs;
u16 wake_en;
u16 wake_sts;
wake_en = intel_readw(shim_vs, SDW_SHIM2_INTEL_VS_WAKEEN);
if (wake_enable) {
/* Enable the wakeup */
wake_en |= SDW_SHIM2_INTEL_VS_WAKEEN_PWE;
intel_writew(shim_vs, SDW_SHIM2_INTEL_VS_WAKEEN, wake_en);
} else {
/* Disable the wake up interrupt */
wake_en &= ~SDW_SHIM2_INTEL_VS_WAKEEN_PWE;
intel_writew(shim_vs, SDW_SHIM2_INTEL_VS_WAKEEN, wake_en);
/* Clear wake status (W1C) */
wake_sts = intel_readw(shim_vs, SDW_SHIM2_INTEL_VS_WAKESTS);
wake_sts |= SDW_SHIM2_INTEL_VS_WAKEEN_PWS;
intel_writew(shim_vs, SDW_SHIM2_INTEL_VS_WAKESTS, wake_sts);
}
}
static int intel_link_power_up(struct sdw_intel *sdw) static int intel_link_power_up(struct sdw_intel *sdw)
{ {
struct sdw_bus *bus = &sdw->cdns.bus; struct sdw_bus *bus = &sdw->cdns.bus;
@ -325,6 +360,9 @@ const struct sdw_intel_hw_ops sdw_intel_lnl_hw_ops = {
.link_power_up = intel_link_power_up, .link_power_up = intel_link_power_up,
.link_power_down = intel_link_power_down, .link_power_down = intel_link_power_down,
.shim_check_wake = intel_shim_check_wake,
.shim_wake = intel_shim_wake,
.sync_arm = intel_sync_arm, .sync_arm = intel_sync_arm,
.sync_go_unlocked = intel_sync_go_unlocked, .sync_go_unlocked = intel_sync_go_unlocked,
.sync_go = intel_sync_go, .sync_go = intel_sync_go,