[media] af9013: add dvbv5 cnr

Add support for DVBv5 CNR.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

diff --git a/drivers/media/dvb-frontends/af9013.c b/drivers/media/dvb-frontends/af9013.c
index 84b04ab20d214d9d0d269ebb7d7f53fd27cf3e8e..2acd9fdd8b396d5c623041f30b29af586ebcc540 100644 (file)
--- a/drivers/media/dvb-frontends/af9013.c
+++ b/drivers/media/dvb-frontends/af9013.c
@@ -228,6 +228,7 @@ static int af9013_statistics_snr_result(struct dvb_frontend *fe)
 {
        struct af9013_state *state = fe->demodulator_priv;
        struct i2c_client *client = state->client;
+       struct dtv_frontend_properties *c = &fe->dtv_property_cache;
        int ret, i, len;
        unsigned int utmp;
        u8 buf[3];
@@ -283,6 +284,9 @@ static int af9013_statistics_snr_result(struct dvb_frontend *fe)
        }
        state->snr = utmp * 10; /* dB/10 */
 
+       c->cnr.stat[0].svalue = 1000 * utmp;
+       c->cnr.stat[0].scale = FE_SCALE_DECIBEL;
+
        return 0;
 err:
        dev_dbg(&client->dev, "failed %d\n", ret);
@@ -1509,6 +1513,7 @@ static int af9013_probe(struct i2c_client *client,
 {
        struct af9013_state *state;
        struct af9013_platform_data *pdata = client->dev.platform_data;
+       struct dtv_frontend_properties *c;
        int ret, i;
        u8 firmware_version[4];
        static const struct regmap_bus regmap_bus = {
@@ -1573,6 +1578,10 @@ static int af9013_probe(struct i2c_client *client,
        /* Setup callbacks */
        pdata->get_dvb_frontend = af9013_get_dvb_frontend;
 
+       /* Init stats to indicate which stats are supported */
+       c = &state->fe.dtv_property_cache;
+       c->cnr.len = 1;
+
        dev_info(&client->dev, "Afatech AF9013 successfully attached\n");
        dev_info(&client->dev, "firmware version: %d.%d.%d.%d\n",
                 firmware_version[0], firmware_version[1],