31  * PLL frequency step :=
32  *    REF == 0 -> PLL XTL frequency(4MHz) / 8
33  *    REF == 1 -> PLL XTL frequency(4MHz) / 4
39  * divider_quotient := (frequency / PLL frequency step) / PreScaler
40  * divider_remainder := (frequency / PLL frequency step) % PreScaler
42  * LPF := LPF Frequency / 1000 / 2 - 2
43  * LPF Frequency @ baudrate=28.86Mbps = 30000
76 	u32 frequency;  member
91 static u8 lookup_cb(u32 frequency)  in lookup_cb()  argument
98 		if (frequency < map->frequency)  in lookup_cb()
107 	u32 frequency, pll, lpf_freq;  in qm1d1b0004_set_params()  local
113 	frequency = fe->dtv_property_cache.frequency;  in qm1d1b0004_set_params()
118 	word = DIV_ROUND_CLOSEST(frequency, pll);  in qm1d1b0004_set_params()
119 	cb = lookup_cb(frequency);  in qm1d1b0004_set_params()
123 	/* step.1: set frequency with BG:2, TM:0(4MHZ), LPF:4MHz */  in qm1d1b0004_set_params()