[media] r820t: avoid rewrite all regs when not needed

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

1 files changed, 5 insertions, 6 deletions

diff --git a/drivers/media/tuners/r820t.c b/drivers/media/tuners/r820t.c
index 2e6a690ffb1a..fc660f27edb3 100644
--- a/drivers/media/tuners/r820t.c
+++ b/drivers/media/tuners/r820t.c
@@ -2006,18 +2006,17 @@ static int r820t_imr_callibrate(struct r820t_priv *priv)
         if (priv->init_done)
                 return 0;
 
-        /* Initialize registers */
-        rc = r820t_write(priv, 0x05,
-                         r820t_init_array, sizeof(r820t_init_array));
-        if (rc < 0)
-                return rc;
-
         /* Detect Xtal capacitance */
         if ((priv->cfg->rafael_chip == CHIP_R820T) ||
             (priv->cfg->rafael_chip == CHIP_R828S) ||
             (priv->cfg->rafael_chip == CHIP_R820C)) {
                 priv->xtal_cap_sel = XTAL_HIGH_CAP_0P;
         } else {
+                /* Initialize registers */
+                rc = r820t_write(priv, 0x05,
+                                r820t_init_array, sizeof(r820t_init_array));
+                if (rc < 0)
+                        return rc;
                 for (i = 0; i < 3; i++) {
                         rc = r820t_xtal_check(priv);
                         if (rc < 0)