Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=efce841093589bfef571a07e18e5446def9e04b4
Commit:     efce841093589bfef571a07e18e5446def9e04b4
Parent:     2b057e8dc6cc8318956fef92b77a4e86985e84d9
Author:     Michael Krufky <[EMAIL PROTECTED]>
AuthorDate: Sat Dec 1 17:40:16 2007 -0300
Committer:  Mauro Carvalho Chehab <[EMAIL PROTECTED]>
CommitDate: Fri Jan 25 19:03:12 2008 -0200

    V4L/DVB (6723): tda18271: only force init once during attach
    
    Once the image rejection calibration procedure has been successful,
    we should not initialize the tuner registers again.
    
    Signed-off-by: Michael Krufky <[EMAIL PROTECTED]>
    Signed-off-by: Mauro Carvalho Chehab <[EMAIL PROTECTED]>
---
 drivers/media/dvb/frontends/tda18271-fe.c |   18 +++++++++++++++++-
 1 files changed, 17 insertions(+), 1 deletions(-)

diff --git a/drivers/media/dvb/frontends/tda18271-fe.c 
b/drivers/media/dvb/frontends/tda18271-fe.c
index 726e102..25c127f 100644
--- a/drivers/media/dvb/frontends/tda18271-fe.c
+++ b/drivers/media/dvb/frontends/tda18271-fe.c
@@ -337,6 +337,20 @@ static int tda18271_init_regs(struct dvb_frontend *fe)
        return 0;
 }
 
+static int tda18271_init(struct dvb_frontend *fe)
+{
+       struct tda18271_priv *priv = fe->tuner_priv;
+       unsigned char *regs = priv->tda18271_regs;
+
+       tda18271_read_regs(fe);
+
+       /* test IR_CAL_OK to see if we need init */
+       if ((regs[R_EP1] & 0x08) == 0)
+               tda18271_init_regs(fe);
+
+       return 0;
+}
+
 static int tda18271_tune(struct dvb_frontend *fe,
                         u32 ifc, u32 freq, u32 bw, u8 std)
 {
@@ -742,7 +756,7 @@ static struct dvb_tuner_ops tda18271_tuner_ops = {
                .frequency_max  = 864000000,
                .frequency_step =     62500
        },
-       .init              = tda18271_init_regs,
+       .init              = tda18271_init,
        .set_params        = tda18271_set_params,
        .set_analog_params = tda18271_set_analog_params,
        .release           = tda18271_release,
@@ -768,6 +782,8 @@ struct dvb_frontend *tda18271_attach(struct dvb_frontend 
*fe, u8 addr,
 
        fe->tuner_priv = priv;
 
+       tda18271_init_regs(fe);
+
        return fe;
 }
 EXPORT_SYMBOL_GPL(tda18271_attach);
-
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