[coreboot-gerrit] Change in coreboot[master]: drivers/intel/wifi: Use newly added pci_dev_is_wake_source

[Furquan Shaikh (Code Review)]

Furquan Shaikh has submitted this change. ( https://review.coreboot.org/c/coreboot/+/46031 )

Change subject: drivers/intel/wifi: Use newly added pci_dev_is_wake_source
......................................................................

drivers/intel/wifi: Use newly added pci_dev_is_wake_source

This change uses the newly added `pci_dev_is_wake_source()` helper function
to determine and log WiFi wake source instead of assuming a hard-coded
register value to check. This is done in preparation to merge the
generic WiFi and Intel WiFi drivers in coreboot in follow-up changes.

BUG=b:169802515
BRANCH=zork

Change-Id: I9bdb453092b4ce7bdab2969f13e0c0aa8166dc0a
Signed-off-by: Furquan Shaikh 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46031
Tested-by: build bot (Jenkins) 
Reviewed-by: Rob Barnes 
Reviewed-by: Tim Wawrzynczak 
---
M src/drivers/intel/wifi/wifi.c
1 file changed, 2 insertions(+), 9 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Tim Wawrzynczak: Looks good to me, approved
  Rob Barnes: Looks good to me, but someone else must approve

diff --git a/src/drivers/intel/wifi/wifi.c b/src/drivers/intel/wifi/wifi.c
index e117ec0..cc58ac6 100644
--- a/src/drivers/intel/wifi/wifi.c
+++ b/src/drivers/intel/wifi/wifi.c
@@ -10,9 +10,6 @@
 #include "chip.h"
 #include "drivers/wifi/generic/chip.h"

-#define PMCS_DR 0xcc
-#define PME_STS (1 << 15)
-
 #if CONFIG(GENERATE_SMBIOS_TABLES)
 static int smbios_write_wifi(struct device *dev, int *handle,
    		     unsigned long *current)
@@ -63,12 +60,8 @@

static void wifi_pci_dev_init(struct device *dev)
 {
-	if (CONFIG(ELOG)) {
-		uint32_t val;
-		val = pci_read_config16(dev, PMCS_DR);
-		if (val & PME_STS)
-			elog_add_event_wake(ELOG_WAKE_SOURCE_PME_WIFI, 0);
-	}
+	if (pci_dev_is_wake_source(dev))
+		elog_add_event_wake(ELOG_WAKE_SOURCE_PME_WIFI, 0);
 }

struct device_operations device_ops = {