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power/intel_x86: add tablet switch event wake masks

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The wake mask programming for S0ix is done in
EC. This patch adds handling for the tablet switch
events in the S0ix flows.

BRANCH=none
BUG=b:37223093
TEST=attach or detach base and check if event is generated

Signed-off-by: Subramony Sesha <subramony.sesha@intel.com>
Signed-off-by: Archana Patni <archana.patni@intel.com>
Signed-off-by: Jenny TC <jenny.tc@intel.com>

Change-Id: Ibd53e85d5a3a1b776e519b70860404684c9ab0fb
Reviewed-on: https://chromium-review.googlesource.com/486462
Commit-Ready: Jenny Tc <jenny.tc@intel.com>
Tested-by: Jenny Tc <jenny.tc@intel.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@chromium.org>
This commit is contained in:
Archana Patni
2017-04-25 18:23:26 +05:30
committed by chrome-bot
parent 2b4d06721a
commit cc0068da34
1 changed files with 10 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
power/intel_x86.c
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@@ -100,15 +100,16 @@ static enum power_state power_wait_s5_rtc_reset(void)
* The chipset_in_state(CHIPSET_STATE_STANDBY | CHIPSET_STATE_ON)
* is used to detect the S0ix transiton.
*
* During S0ix entry, the wake mask for lid open is enabled.
* During S0ix entry, the wake mask for lid open and tablet mode is enabled.
*/
static void s0ix_lpc_enable_wake_mask_for_lid_open(void)
static void s0ix_lpc_enable_wake_mask(void)
{
if (chipset_in_state(CHIPSET_STATE_STANDBY | CHIPSET_STATE_ON)) {
uint32_t mask;
mask = lpc_get_host_event_mask(LPC_HOST_EVENT_WAKE) |
EC_HOST_EVENT_MASK(EC_HOST_EVENT_LID_OPEN);
EC_HOST_EVENT_MASK(EC_HOST_EVENT_LID_OPEN) |
EC_HOST_EVENT_MASK(EC_HOST_EVENT_MODE_CHANGE);
lpc_set_host_event_mask(LPC_HOST_EVENT_WAKE, mask);
}
@@ -118,16 +119,17 @@ static void s0ix_lpc_enable_wake_mask_for_lid_open(void)
* In AP S0ix & S3 -> S0 transitions,
* the chipset_resume hook is called.
*
* During S0ix exit, the wake mask for lid open is disabled.
* During S0ix exit, the wake mask for lid open and tablet mode is disabled.
* All pending events are cleared
*/
static void s0ix_lpc_disable_wake_mask_for_lid_open(void)
static void s0ix_lpc_disable_wake_mask(void)
{
if (chipset_in_state(CHIPSET_STATE_STANDBY | CHIPSET_STATE_ON)) {
uint32_t mask;
mask = lpc_get_host_event_mask(LPC_HOST_EVENT_WAKE) &
~EC_HOST_EVENT_MASK(EC_HOST_EVENT_LID_OPEN);
~EC_HOST_EVENT_MASK(EC_HOST_EVENT_LID_OPEN) &
~EC_HOST_EVENT_MASK(EC_HOST_EVENT_MODE_CHANGE);
lpc_set_host_event_mask(LPC_HOST_EVENT_WAKE, mask);
@@ -341,7 +343,7 @@ enum power_state common_intel_x86_power_handle_state(enum power_state state)
/* call hooks before standby */
hook_notify(HOOK_CHIPSET_SUSPEND);
s0ix_lpc_enable_wake_mask_for_lid_open();
s0ix_lpc_enable_wake_mask();
/*
* Enable idle task deep sleep. Allow the low power idle task
@@ -353,7 +355,7 @@ enum power_state common_intel_x86_power_handle_state(enum power_state state)
case POWER_S0ixS0:
s0ix_lpc_disable_wake_mask_for_lid_open();
s0ix_lpc_disable_wake_mask();
/* Call hooks now that rails are up */
hook_notify(HOOK_CHIPSET_RESUME);