wil6210: clear FW and ucode log address

Clear the FW and ucode log address on device initialization to allow
user space app identify when the address was set by FW/ucode and it can
start read.
Signed-off-by: Tzahi Sabo <stzahi@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/ath/wil6210/main.c

@@ -1522,6 +1522,7 @@ int wil_ps_update(struct wil6210_priv *wil, enum wmi_ps_profile_type ps_profile)
 
 static void wil_pre_fw_config(struct wil6210_priv *wil)
 {
+	wil_clear_fw_log_addr(wil);
 	/* Mark FW as loaded from host */
 	wil_s(wil, RGF_USER_USAGE_6, 1);
 
@@ -1578,6 +1579,20 @@ static int wil_restore_vifs(struct wil6210_priv *wil)
 	return 0;
 }
 
+/*
+ * Clear FW and ucode log start addr to indicate FW log is not ready. The host
+ * driver clears the addresses before FW starts and FW initializes the address
+ * when it is ready to send logs.
+ */
+void wil_clear_fw_log_addr(struct wil6210_priv *wil)
+{
+	/* FW log addr */
+	wil_w(wil, RGF_USER_USAGE_1, 0);
+	/* ucode log addr */
+	wil_w(wil, RGF_USER_USAGE_2, 0);
+	wil_dbg_misc(wil, "Cleared FW and ucode log address");
+}
+
 /*
  * We reset all the structures, and we reset the UMAC.
  * After calling this routine, you're expected to reload

drivers/net/wireless/ath/wil6210/pcie_bus.c

@@ -420,6 +420,7 @@ static int wil_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	}
 	/* rollback to bus_disable */
 
+	wil_clear_fw_log_addr(wil);
 	rc = wil_if_add(wil);
 	if (rc) {
 		wil_err(wil, "wil_if_add failed: %d\n", rc);

drivers/net/wireless/ath/wil6210/wil6210.h

@@ -1425,4 +1425,5 @@ int wmi_addba_rx_resp_edma(struct wil6210_priv *wil, u8 mid, u8 cid,
 
 void update_supported_bands(struct wil6210_priv *wil);
 
+void wil_clear_fw_log_addr(struct wil6210_priv *wil);
 #endif /* __WIL6210_H__ */