diff -ruN kernel-source-3.14.orig/drivers/media/dvb-frontends/stv0900_core.c kernel-source-3.14/drivers/media/dvb-frontends/stv0900_core.c
--- kernel-source-3.14.orig/drivers/media/dvb-frontends/stv0900_core.c	2014-03-31 12:40:15.000000000 +0900
+++ kernel-source-3.14/drivers/media/dvb-frontends/stv0900_core.c	2015-08-05 19:41:31.070072853 +0800
@@ -1487,7 +1487,7 @@
 
 	stv0900_write_bits(intp, F0900_P1_TUN_IQSWAP, p_init->tun1_iq_inv);
 	stv0900_write_bits(intp, F0900_P2_TUN_IQSWAP, p_init->tun2_iq_inv);
-	stv0900_set_mclk(intp, 135000000);
+	stv0900_set_mclk(intp, 180000000);
 	msleep(3);
 
 	switch (intp->clkmode) {