[media] r820t: Remove a warning for an unused value

Currently, the driver complains about the pre_detect var:

	drivers/media/tuners/r820t.c: In function 'r820t_sysfreq_sel':
	drivers/media/tuners/r820t.c:722:31: warning: variable 'pre_dect' set but not used [-Wunused-but-set-variable]

While rtl8232 code comments it, perhaps some other driver may use.
So, the better is to keep the code there, allowing to enable it
via r820t config data.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/tuners/r820t.c b/drivers/media/tuners/r820t.c
index e6e7a06d2b40dd58ccb9755377ec005bd2268b0b..4835021aa3b6c21239123e01a4ae05436afd41ff 100644 (file)
--- a/drivers/media/tuners/r820t.c
+++ b/drivers/media/tuners/r820t.c
@@ -797,6 +797,13 @@ static int r820t_sysfreq_sel(struct r820t_priv *priv, u32 freq,
                cable2_in = 0x00;
        }
 
+
+       if (priv->cfg->use_predetect) {
+               rc = r820t_write_reg_mask(priv, 0x06, pre_dect, 0x40);
+               if (rc < 0)
+                       return rc;
+       }
+
        rc = r820t_write_reg_mask(priv, 0x1d, lna_top, 0xc7);
        if (rc < 0)
                return rc;

diff --git a/drivers/media/tuners/r820t.h b/drivers/media/tuners/r820t.h
index 4c0823b21693fa9f7b578f3467e8dc402b494ae8..48af3548027da19fa872fab0a0dff8a369a54ea5 100644 (file)
--- a/drivers/media/tuners/r820t.h
+++ b/drivers/media/tuners/r820t.h
@@ -39,6 +39,7 @@ struct r820t_config {
        enum r820t_chip rafael_chip;
        unsigned max_i2c_msg_len;
        bool use_diplexer;
+       bool use_predetect;
 };
 
 #if IS_ENABLED(CONFIG_MEDIA_TUNER_R820T)