wl1271: Reduce rate used for last PSM entry attempt

This patch reduces the rate of the null-func used to enter PSM on the last
retry as precaution.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
diff --git a/drivers/net/wireless/wl12xx/wl1271_cmd.c b/drivers/net/wireless/wl12xx/wl1271_cmd.c
index 42e7d2f..06b14f2 100644
--- a/drivers/net/wireless/wl12xx/wl1271_cmd.c
+++ b/drivers/net/wireless/wl12xx/wl1271_cmd.c
@@ -390,7 +390,7 @@
 	return ret;
 }
 
-int wl1271_cmd_ps_mode(struct wl1271 *wl, u8 ps_mode, bool send)
+int wl1271_cmd_ps_mode(struct wl1271 *wl, u8 ps_mode, u32 rates, bool send)
 {
 	struct wl1271_cmd_ps_params *ps_params = NULL;
 	int ret = 0;
@@ -407,7 +407,7 @@
 	ps_params->send_null_data = send;
 	ps_params->retries = 5;
 	ps_params->hang_over_period = 1;
-	ps_params->null_data_rate = cpu_to_le32(wl->basic_rate_set);
+	ps_params->null_data_rate = cpu_to_le32(rates);
 
 	ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
 			      sizeof(*ps_params), 0);