diff mbox

[v2,24/31,media] r820t: avoid rewrite all regs when not needed

Message ID 1366159362-3773-25-git-send-email-mchehab@redhat.com (mailing list archive)
State New, archived
Headers show

Commit Message

Mauro Carvalho Chehab April 17, 2013, 12:42 a.m. UTC 
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/media/tuners/r820t.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)
diff mbox

Patch

diff --git a/drivers/media/tuners/r820t.c b/drivers/media/tuners/r820t.c
index 2e6a690..fc660f2 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)