wil6210: clear PAL_UNIT_ICR part of device reset

When FW starts running it can get D0 to D3 interrupt that is a leftover
from previous system suspend while FW was not running.
As this interrupt is not relevant anymore, clear it part of device reset
procedure.

Signed-off-by: Dedy Lansky <[email protected]>
Signed-off-by: Maya Erez <[email protected]>
Signed-off-by: Kalle Valo <[email protected]>

Author: Dedy Lansky

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

@@ -943,6 +943,8 @@ static void wil_pre_fw_config(struct wil6210_priv *wil)
 	/* it is W1C, clear by writing back same value */
 	wil_s(wil, RGF_CAF_ICR + offsetof(struct RGF_ICR, ICR), 0);
 	wil_w(wil, RGF_CAF_ICR + offsetof(struct RGF_ICR, IMV), ~0);
+	/* clear PAL_UNIT_ICR (potential D0->D3 leftover) */
+	wil_s(wil, RGF_PAL_UNIT_ICR + offsetof(struct RGF_ICR, ICR), 0);
 
 	if (wil->fw_calib_result > 0) {
 		__le32 val = cpu_to_le32(wil->fw_calib_result |

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

@@ -268,6 +268,7 @@ struct RGF_ICR {
 	#define BIT_DMA_PSEUDO_CAUSE_MISC	BIT(2)
 
 #define RGF_HP_CTRL			(0x88265c)
+#define RGF_PAL_UNIT_ICR		(0x88266c) /* struct RGF_ICR */
 #define RGF_PCIE_LOS_COUNTER_CTL	(0x882dc4)
 
 /* MAC timer, usec, for packet lifetime */