diff options
author | Chris Pascoe <c.pascoe@itee.uq.edu.au> | 2007-11-19 09:32:06 +0300 |
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committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2008-01-26 00:02:21 +0300 |
commit | 58d834ea89664b41e6e21ed2d8dc5680d0dd76b6 (patch) | |
tree | 722fa8a9918db7f3a3674c8b07b9e44f42cc2ae8 /drivers/media/dvb/frontends/zl10353.c | |
parent | a644e4a3e95f8ca6eca019c92d8dfde101150687 (diff) | |
download | linux-58d834ea89664b41e6e21ed2d8dc5680d0dd76b6.tar.xz |
V4L/DVB (6628): zl10353: Improve support for boards without a tuner on secondary i2c
Issue FSM_GO instead of TUNER_GO if there is no tuner attached to the
secondary i2c bus.
Signed-off-by: Chris Pascoe <c.pascoe@itee.uq.edu.au>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/dvb/frontends/zl10353.c')
-rw-r--r-- | drivers/media/dvb/frontends/zl10353.c | 34 |
1 files changed, 15 insertions, 19 deletions
diff --git a/drivers/media/dvb/frontends/zl10353.c b/drivers/media/dvb/frontends/zl10353.c index 0106df4c55e8..9bfdc01fed2c 100644 --- a/drivers/media/dvb/frontends/zl10353.c +++ b/drivers/media/dvb/frontends/zl10353.c @@ -183,35 +183,31 @@ static int zl10353_set_parameters(struct dvb_frontend *fe, if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0); - // if there is no attached secondary tuner, we call set_params to program - // a potential tuner attached somewhere else + /* + * If there is no tuner attached to the secondary I2C bus, we call + * set_params to program a potential tuner attached somewhere else. + * Otherwise, we update the PLL registers via calc_regs. + */ if (state->config.no_tuner) { if (fe->ops.tuner_ops.set_params) { fe->ops.tuner_ops.set_params(fe, param); if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0); } - } - - // if pllbuf is defined, retrieve the settings - if (fe->ops.tuner_ops.calc_regs) { - fe->ops.tuner_ops.calc_regs(fe, param, pllbuf+1, 5); + } else if (fe->ops.tuner_ops.calc_regs) { + fe->ops.tuner_ops.calc_regs(fe, param, pllbuf + 1, 5); pllbuf[1] <<= 1; - } else { - // fake pllbuf settings - pllbuf[1] = 0x61 << 1; - pllbuf[2] = 0; - pllbuf[3] = 0; - pllbuf[3] = 0; - pllbuf[4] = 0; + zl10353_write(fe, pllbuf, sizeof(pllbuf)); } - // there is no call to _just_ start decoding, so we send the pllbuf anyway - // even if there isn't a PLL attached to the secondary bus - zl10353_write(fe, pllbuf, sizeof(pllbuf)); - zl10353_single_write(fe, 0x5F, 0x13); - zl10353_single_write(fe, 0x70, 0x01); + + /* If no attached tuner or invalid PLL registers, just start the FSM. */ + if (state->config.no_tuner || fe->ops.tuner_ops.calc_regs == NULL) + zl10353_single_write(fe, FSM_GO, 0x01); + else + zl10353_single_write(fe, TUNER_GO, 0x01); + udelay(250); zl10353_single_write(fe, 0xE4, 0x00); zl10353_single_write(fe, 0xE5, 0x2A); |