[PATCH ath-next] wifi: ath11k: switch to of_get_mac_address

This is needed to support nvmem defined MAC addresses in DTS.

In addition, check if the probe should be deferred as nvmem can load
after ath11k.

For brevity, ACPI is not a factor here. ath11k is too new for that.

Signed-off-by: Rosen Penev <[email protected]>
---
 drivers/net/wireless/ath/ath11k/mac.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index 1fadf5faafb8..801db15ca78b 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -9,6 +9,7 @@
 #include <linux/etherdevice.h>
 #include <linux/bitfield.h>
 #include <linux/inetdevice.h>
+#include <linux/of_net.h>
 #include <net/if_inet6.h>
 #include <net/ipv6.h>
 
@@ -10434,7 +10435,9 @@ int ath11k_mac_register(struct ath11k_base *ab)
 	if (ret)
 		return ret;
 
-	device_get_mac_address(ab->dev, mac_addr);
+	ret = of_get_mac_address(ab->dev->of_node, mac_addr);
+	if (ret == -EPROBE_DEFER)
+		return ret;
 
 	for (i = 0; i < ab->num_radios; i++) {
 		pdev = &ab->pdevs[i];
-- 
2.50.1