734 			lna_top = 0xe5;		/* detect bw 3, lna top:4, predet top:2 */  in r820t_sysfreq_sel()
739 			lna_top = 0xe5;		/* detect bw 3, lna top:4, predet top:2 */  in r820t_sysfreq_sel()
743 		lna_vth_l = 0x53;		/* lna vth 0.84	,  vtl 0.64 */  in r820t_sysfreq_sel()
753 		lna_top = 0xe5;		/* detect bw 3, lna top:4, predet top:2 */  in r820t_sysfreq_sel()
754 		lna_vth_l = 0x53;	/* lna vth 0.84	,  vtl 0.64 */  in r820t_sysfreq_sel()
766 		lna_top = 0xe5;		/* detect bw 3, lna top:4, predet top:2 */  in r820t_sysfreq_sel()
767 		lna_vth_l = 0x75;	/* lna vth 1.04	,  vtl 0.84 */  in r820t_sysfreq_sel()
792 		lna_top = 0xe5;		/* detect bw 3, lna top:4, predet top:2 */  in r820t_sysfreq_sel()
793 		lna_vth_l = 0x53;	/* lna vth 0.84	,  vtl 0.64 */  in r820t_sysfreq_sel()
860 	 * Set LNA  in r820t_sysfreq_sel()
863 	tuner_dbg("adjusting LNA parameters\n");  in r820t_sysfreq_sel()
865 		/* LNA TOP: lowest */  in r820t_sysfreq_sel()
887 		/* write LNA TOP = 3 */  in r820t_sysfreq_sel()
901 		/* LNA discharge current */  in r820t_sysfreq_sel()
916 		/* write LNA TOP */  in r820t_sysfreq_sel()
930 		/* LNA discharge current */  in r820t_sysfreq_sel()
969 		ext_enable = 0x40;	/* r30[6], ext enable; r30[5]:0 ext at lna max */  in r820t_set_tv_standard()
981 		ext_enable = 0x40;	/* r30[6]=1 ext enable; r30[5]:1 ext at lna max-1 */  in r820t_set_tv_standard()
993 		ext_enable = 0x40;	/* r30[6]=1 ext enable; r30[5]:1 ext at lna max-1 */  in r820t_set_tv_standard()
1006 			ext_enable = 0x60;	/* r30[6]=1 ext enable; r30[5]:1 ext at lna max-1 */  in r820t_set_tv_standard()
1026 			ext_enable = 0x60;	/* r30[6]=1 ext enable; r30[5]:1 ext at lna max-1 */  in r820t_set_tv_standard()
1039 			ext_enable = 0x60;	/* r30[6]=1 ext enable; r30[5]:1 ext at lna max-1 */  in r820t_set_tv_standard()
1051 			ext_enable = 0x60;	/* r30[6]=1 ext enable; r30[5]:1 ext at lna max-1 */  in r820t_set_tv_standard()
1244 		/* LNA auto off */
1275 		/* set LNA gain */
1285 		/* LNA */
1468 	/* lna off (air-in off) */  in r820t_imr_prepare()
2270 		/* A higher gain at LNA means a lower signal strength */  in r820t_signal()