CHROMIUM: [media] rk3288-vpu: Add VP8 decoder to V4L2 API implementation

[firefly-linux-kernel-4.4.55.git] / drivers / media / dvb-frontends / tda1004x.c

diff --git a/drivers/media/dvb-frontends/tda1004x.c b/drivers/media/dvb-frontends/tda1004x.c
index 0e209b56c76c1c487007121e336e0438944acb93..c6abeb4fba9db51827fc815fde920b1a30faa1fa 100644 (file)
--- a/drivers/media/dvb-frontends/tda1004x.c
+++ b/drivers/media/dvb-frontends/tda1004x.c
@@ -903,9 +903,18 @@ static int tda1004x_get_fe(struct dvb_frontend *fe)
 {
        struct dtv_frontend_properties *fe_params = &fe->dtv_property_cache;
        struct tda1004x_state* state = fe->demodulator_priv;
+       int status;
 
        dprintk("%s\n", __func__);
 
+       status = tda1004x_read_byte(state, TDA1004X_STATUS_CD);
+       if (status == -1)
+               return -EIO;
+
+       /* Only update the properties cache if device is locked */
+       if (!(status & 8))
+               return 0;
+
        // inversion status
        fe_params->inversion = INVERSION_OFF;
        if (tda1004x_read_byte(state, TDA1004X_CONFC1) & 0x20)