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Diffstat (limited to 'src/soc/intel/cannonlake/elog.c')
-rw-r--r--src/soc/intel/cannonlake/elog.c36
1 files changed, 13 insertions, 23 deletions
diff --git a/src/soc/intel/cannonlake/elog.c b/src/soc/intel/cannonlake/elog.c
index 3600d76d95..104a78c2ab 100644
--- a/src/soc/intel/cannonlake/elog.c
+++ b/src/soc/intel/cannonlake/elog.c
@@ -22,19 +22,6 @@ struct pme_status_info {
#define PME_STS_BIT (1 << 15)
-static void pch_log_add_elog_event(const struct pme_status_info *info)
-{
- /*
- * If wake source is XHCI, check for detailed wake source events on
- * USB2/3 ports.
- */
- if ((info->dev == PCH_DEV_XHCI) &&
- pch_xhci_update_wake_event(soc_get_xhci_usb_info()))
- return;
-
- elog_add_event_wake(info->elog_event, 0);
-}
-
static void pch_log_pme_internal_wake_source(void)
{
size_t i;
@@ -46,12 +33,11 @@ static void pch_log_pme_internal_wake_source(void)
uint16_t val;
bool dev_found = false;
- struct pme_status_info pme_status_info[] = {
+ const struct pme_status_info pme_status_info[] = {
{ PCH_DEV_HDA, 0x54, ELOG_WAKE_SOURCE_PME_HDA },
{ PCH_DEV_GBE, 0xcc, ELOG_WAKE_SOURCE_PME_GBE },
{ PCH_DEV_SATA, 0x74, ELOG_WAKE_SOURCE_PME_SATA },
{ PCH_DEV_CSE, 0x54, ELOG_WAKE_SOURCE_PME_CSE },
- { PCH_DEV_XHCI, 0x74, ELOG_WAKE_SOURCE_PME_XHCI },
{ PCH_DEV_USBOTG, 0x84, ELOG_WAKE_SOURCE_PME_XDCI },
/*
* The power management control/status register is not
@@ -60,6 +46,9 @@ static void pch_log_pme_internal_wake_source(void)
*/
{ PCH_DEV_CNViWIFI, 0xcc, ELOG_WAKE_SOURCE_PME_WIFI },
};
+ const struct xhci_wake_info xhci_wake_info[] = {
+ { PCH_DEVFN_XHCI, ELOG_WAKE_SOURCE_PME_XHCI },
+ };
for (i = 0; i < ARRAY_SIZE(pme_status_info); i++) {
dev = pme_status_info[i].dev;
@@ -71,19 +60,20 @@ static void pch_log_pme_internal_wake_source(void)
if ((val == 0xFFFF) || !(val & PME_STS_BIT))
continue;
- pch_log_add_elog_event(&pme_status_info[i]);
+ elog_add_event_wake(pme_status_info[i].elog_event, 0);
dev_found = true;
}
/*
- * If device is still not found, but the wake source is internal PME,
- * try probing XHCI ports to see if any of the USB2/3 ports indicate
- * that it was the wake source. This path would be taken in case of GSMI
- * logging with S0ix where the pci_pm_resume_noirq runs and clears the
- * PME_STS_BIT in controller register.
+ * Check the XHCI controllers' USB2 & USB3 ports for wake events. There
+ * are cases (GSMI logging for S0ix clears PME_STS_BIT) where the XHCI
+ * controller's PME_STS_BIT may have already been cleared, so the host
+ * controller wake wouldn't get logged here; therefore, the host
+ * controller wake event is logged before its corresponding port wake
+ * event is logged.
*/
- if (!dev_found)
- dev_found = pch_xhci_update_wake_event(soc_get_xhci_usb_info());
+ dev_found |= xhci_update_wake_event(xhci_wake_info,
+ ARRAY_SIZE(xhci_wake_info));
if (!dev_found)
elog_add_event_wake(ELOG_WAKE_SOURCE_PME_INTERNAL, 0);