From 6d67c9717bb71fd23a1f87c464df3ac886759cd0 Mon Sep 17 00:00:00 2001 From: Trent Piepho Date: Thu, 11 Jun 2009 19:31:22 -0300 Subject: [PATCH] V4L/DVB (12292): b2c2: Use dvb-pll for AirStar DVB-T's tuner The code in samsung_tdtc9251dh0_calc_regs() is equivalent to what dvb-pll's code does. Signed-off-by: Trent Piepho Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/b2c2/flexcop-fe-tuner.c | 38 +++++-------------------------- 1 file changed, 6 insertions(+), 32 deletions(-) diff --git a/drivers/media/dvb/b2c2/flexcop-fe-tuner.c b/drivers/media/dvb/b2c2/flexcop-fe-tuner.c index d5e4149..c35661a 100644 --- a/drivers/media/dvb/b2c2/flexcop-fe-tuner.c +++ b/drivers/media/dvb/b2c2/flexcop-fe-tuner.c @@ -449,7 +449,7 @@ static int skystar2_rev28_attach(struct flexcop_device *fc, #endif /* AirStar DVB-T */ -#if FE_SUPPORTED(MT352) +#if FE_SUPPORTED(MT352) && FE_SUPPORTED(PLL) static int samsung_tdtc9251dh0_demod_init(struct dvb_frontend *fe) { static u8 mt352_clock_config[] = { 0x89, 0x18, 0x2d }; @@ -467,32 +467,6 @@ static int samsung_tdtc9251dh0_demod_init(struct dvb_frontend *fe) return 0; } -static int samsung_tdtc9251dh0_calc_regs(struct dvb_frontend *fe, - struct dvb_frontend_parameters *params, u8* pllbuf, int buf_len) -{ - u32 div; - unsigned char bs = 0; - - if (buf_len < 5) - return -EINVAL; - -#define IF_FREQUENCYx6 217 /* 6 * 36.16666666667MHz */ - div = (((params->frequency + 83333) * 3) / 500000) + IF_FREQUENCYx6; - if (params->frequency >= 48000000 && params->frequency <= 154000000) \ - bs = 0x09; - if (params->frequency >= 161000000 && params->frequency <= 439000000) \ - bs = 0x0a; - if (params->frequency >= 447000000 && params->frequency <= 863000000) \ - bs = 0x08; - - pllbuf[0] = 0x61; - pllbuf[1] = div >> 8; - pllbuf[2] = div & 0xff; - pllbuf[3] = 0xcc; - pllbuf[4] = bs; - return 5; -} - static struct mt352_config samsung_tdtc9251dh0_config = { .demod_address = 0x0f, .demod_init = samsung_tdtc9251dh0_demod_init, @@ -502,11 +476,11 @@ static int airstar_dvbt_attach(struct flexcop_device *fc, struct i2c_adapter *i2c) { fc->fe = dvb_attach(mt352_attach, &samsung_tdtc9251dh0_config, i2c); - if (fc->fe != NULL) { - fc->fe->ops.tuner_ops.calc_regs = samsung_tdtc9251dh0_calc_regs; - return 1; - } - return 0; + if (!fc->fe) + return 0; + + return !!dvb_attach(dvb_pll_attach, fc->fe, 0x61, NULL, + DVB_PLL_SAMSUNG_TDTC9251DH0); } #else #define airstar_dvbt_attach NULL -- 2.7.4