wl1271: Increase connection reliability

This patch improves connection reliability by choosing the lowest basic
rate for null-func frames (which increases their range, as the firmware does
not do rate fall-back for null-func frames.) Also, increase the PSM entry
retry-counter.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Tested-by: Tuomas Katila <ext-tuomas.2.katila@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
diff --git a/drivers/net/wireless/wl12xx/wl1271_conf.h b/drivers/net/wireless/wl12xx/wl1271_conf.h
index ab716f5..60c50d1 100644
--- a/drivers/net/wireless/wl12xx/wl1271_conf.h
+++ b/drivers/net/wireless/wl12xx/wl1271_conf.h
@@ -912,6 +912,22 @@
 	u8 psm_entry_retries;
 
 	/*
+	 * Specifies the maximum number of times to try transmit the PSM entry
+	 * null-func frame for each PSM entry attempt
+	 *
+	 * Range 0 - 255
+	 */
+	u8 psm_entry_nullfunc_retries;
+
+	/*
+	 * Specifies the time to linger in active mode after successfully
+	 * transmitting the PSM entry null-func frame.
+	 *
+	 * Range 0 - 255 TU's
+	 */
+	u8 psm_entry_hangover_period;
+
+	/*
 	 *
 	 * Specifies the interval of the connection keep-alive null-func
 	 * frame in ms.