[media] cxd2841er: force 8MHz bandwidth for DVB-C if specified bw not supported

if specified DVB-C bandwidth not supported then force 8MHz.
Should work for most cases.
Signed-off-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/dvb-frontends/cxd2841er.c

@@ -2763,6 +2763,14 @@ static int cxd2841er_sleep_tc_to_active_c_band(struct cxd2841er_priv *priv,
 	u8 b10_b6[3];
 	u32 iffreq;
 
+	if (bandwidth != 6000000 &&
+			bandwidth != 7000000 &&
+			bandwidth != 8000000) {
+		dev_info(&priv->i2c->dev, "%s(): unsupported bandwidth %d. Forcing 8Mhz!\n",
+				__func__, bandwidth);
+		bandwidth = 8000000;
+	}
+
 	dev_dbg(&priv->i2c->dev, "%s() bw=%d\n", __func__, bandwidth);
 	cxd2841er_write_reg(priv, I2C_SLVT, 0x00, 0x10);
 	switch (bandwidth) {