From: Antti Palosaari <crope@iki.fi>
Date: Mon, 17 Sep 2012 01:26:55 +0000 (-0300)
Subject: [media] tua9001: enter full power save on attach
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=69504793dfb42bdd0e647c948047b71e9c3307f2;p=deliverable%2Flinux.git

[media] tua9001: enter full power save on attach

Disable RXEN and enable RESETN pins on attach to ensure chip is
totally powered down after attach.

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

diff --git a/drivers/media/tuners/tua9001.c b/drivers/media/tuners/tua9001.c
index e6394fc884b0..389668474070 100644
--- a/drivers/media/tuners/tua9001.c
+++ b/drivers/media/tuners/tua9001.c
@@ -261,6 +261,16 @@ struct dvb_frontend *tua9001_attach(struct dvb_frontend *fe,
 				TUA9001_CMD_CEN, 1);
 		if (ret < 0)
 			goto err;
+
+		ret = fe->callback(priv->i2c, DVB_FRONTEND_COMPONENT_TUNER,
+				TUA9001_CMD_RXEN, 0);
+		if (ret < 0)
+			goto err;
+
+		ret = fe->callback(priv->i2c, DVB_FRONTEND_COMPONENT_TUNER,
+				TUA9001_CMD_RESETN, 1);
+		if (ret < 0)
+			goto err;
 	}
 
 	dev_info(&priv->i2c->dev,