From 80e27e20619902b11aa255081fd83eab10fc0839 Mon Sep 17 00:00:00 2001 From: Mac Michaels Date: Fri, 9 Sep 2005 13:02:40 -0700 Subject: [PATCH] [PATCH] dvb: frontend: or51132: remove bogus optimization attempt This fix has also been applied to lgdt330x. There is an optimization that keeps track of the frequency tuned by the digital decoder. The digital driver does not set the frequency if it has not changed since it was tuned. The analog tuner driver knows nothing about the frequency saved by the digital driver. When the frequency is set using the video4linux code with tvtime, the hardware get changed but the digital driver's state does not get updated. Switch back to the same digital channel and the driver finds no change in frequency so the tuner is not reset to the digital frequency. The work around is to remove the check and always set the tuner to the specified frequency. Signed-off-by: Mac Michaels Signed-off-by: Michael Krufky Signed-off-by: Johannes Stezenbach Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/media/dvb/frontends/or51132.c | 25 +++++++++++-------------- 1 file changed, 11 insertions(+), 14 deletions(-) diff --git a/drivers/media/dvb/frontends/or51132.c b/drivers/media/dvb/frontends/or51132.c index cc0a77c790f1..b6d0eecc59eb 100644 --- a/drivers/media/dvb/frontends/or51132.c +++ b/drivers/media/dvb/frontends/or51132.c @@ -370,22 +370,19 @@ static int or51132_set_parameters(struct dvb_frontend* fe, or51132_setmode(fe); } - /* Change only if we are actually changing the channel */ - if (state->current_frequency != param->frequency) { - dvb_pll_configure(state->config->pll_desc, buf, - param->frequency, 0); - dprintk("set_parameters tuner bytes: 0x%02x 0x%02x " - "0x%02x 0x%02x\n",buf[0],buf[1],buf[2],buf[3]); - if (i2c_writebytes(state, state->config->pll_address ,buf, 4)) - printk(KERN_WARNING "or51132: set_parameters error " - "writing to tuner\n"); + dvb_pll_configure(state->config->pll_desc, buf, + param->frequency, 0); + dprintk("set_parameters tuner bytes: 0x%02x 0x%02x " + "0x%02x 0x%02x\n",buf[0],buf[1],buf[2],buf[3]); + if (i2c_writebytes(state, state->config->pll_address ,buf, 4)) + printk(KERN_WARNING "or51132: set_parameters error " + "writing to tuner\n"); - /* Set to current mode */ - or51132_setmode(fe); + /* Set to current mode */ + or51132_setmode(fe); - /* Update current frequency */ - state->current_frequency = param->frequency; - } + /* Update current frequency */ + state->current_frequency = param->frequency; return 0; }