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| author | Hartmut Hackmann <hartmut.hackmann@t-online.de> | 2008-04-09 23:07:11 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2008-04-24 14:09:44 -0300 |
| commit | 9a1b04e461fc8127c902a988cd9a082ba0680b11 (patch) | |
| tree | 5f09a53b458432fddba9ed871f5731a83e41f7e2 /drivers/media/dvb/frontends | |
| parent | b37f2d6a31fc8e80c79a0a214d83b128aa796543 (diff) | |
| download | linux-9a1b04e461fc8127c902a988cd9a082ba0680b11.tar.gz linux-9a1b04e461fc8127c902a988cd9a082ba0680b11.tar.bz2 linux-9a1b04e461fc8127c902a988cd9a082ba0680b11.zip | |
V4L/DVB (7654): tda10086: make the xtal frequency a configuration option
Some DVB-S boards, i.e. with the SD1878 tuner, use a 4 MHz reference frequency.
This reqires a different setup of the clock PLL.
This patch adds an enum to the tda10086_config struct and sets the proper
values for the boards.
This patch also fixes the DVB-S section of the MD7134_BRIDGE_2
Signed-off-by: Hartmut Hackmann <hartmut.hackmann@t-online.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/dvb/frontends')
| -rw-r--r-- | drivers/media/dvb/frontends/tda10086.c | 11 | ||||
| -rw-r--r-- | drivers/media/dvb/frontends/tda10086.h | 8 |
2 files changed, 16 insertions, 3 deletions
diff --git a/drivers/media/dvb/frontends/tda10086.c b/drivers/media/dvb/frontends/tda10086.c index 5fc26757f393..acf1471373ca 100644 --- a/drivers/media/dvb/frontends/tda10086.c +++ b/drivers/media/dvb/frontends/tda10086.c @@ -128,10 +128,15 @@ static int tda10086_init(struct dvb_frontend* fe) tda10086_write_byte(state, 0x32, 0x00); // irq off tda10086_write_byte(state, 0x31, 0x56); // setup AFC - // setup PLL (assumes 16Mhz XIN) + // setup PLL (this assumes SACLK = 96MHz) tda10086_write_byte(state, 0x55, 0x2c); // misc PLL setup - tda10086_write_byte(state, 0x3a, 0x0b); // M=12 - tda10086_write_byte(state, 0x3b, 0x01); // P=2 + if (state->config->xtal_freq == TDA10086_XTAL_16M) { + tda10086_write_byte(state, 0x3a, 0x0b); // M=12 + tda10086_write_byte(state, 0x3b, 0x01); // P=2 + } else { + tda10086_write_byte(state, 0x3a, 0x17); // M=24 + tda10086_write_byte(state, 0x3b, 0x00); // P=1 + } tda10086_write_mask(state, 0x55, 0x20, 0x00); // powerup PLL // setup TS interface diff --git a/drivers/media/dvb/frontends/tda10086.h b/drivers/media/dvb/frontends/tda10086.h index 197c237e515f..f25d5ea381e5 100644 --- a/drivers/media/dvb/frontends/tda10086.h +++ b/drivers/media/dvb/frontends/tda10086.h @@ -26,6 +26,11 @@ #include <linux/dvb/frontend.h> #include <linux/firmware.h> +enum tda10086_xtal { + TDA10086_XTAL_16M, + TDA10086_XTAL_4M +}; + struct tda10086_config { /* the demodulator's i2c address */ @@ -36,6 +41,9 @@ struct tda10086_config /* do we need the diseqc signal with carrier? */ u8 diseqc_tone; + + /* frequency of the reference xtal */ + enum tda10086_xtal xtal_freq; }; #if defined(CONFIG_DVB_TDA10086) || (defined(CONFIG_DVB_TDA10086_MODULE) && defined(MODULE)) |