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Commit ffb9948e authored by Antti Palosaari's avatar Antti Palosaari Committed by Mauro Carvalho Chehab
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[media] em28xx: PCTV tripleStick (292e) LNA support 



External LNA between antenna connector and RF tuner is controlled
by EM28178 GPIO 0. GPIO value 1 is LNA active and value 0 is LNA
disabled.

Signed-off-by: default avatarAntti Palosaari <crope@iki.fi>
Signed-off-by: default avatarMauro Carvalho Chehab <m.chehab@samsung.com>
parent 722a042d

drivers/media/usb/em28xx/em28xx-dvb.c

+16 −0
Original line number Diff line number Diff line
@@ -746,6 +746,21 @@ static int em28xx_pctv_290e_set_lna(struct dvb_frontend *fe) 
#endif

}



static int em28xx_pctv_292e_set_lna(struct dvb_frontend *fe)

{

	struct dtv_frontend_properties *c = &fe->dtv_property_cache;

	struct em28xx_i2c_bus *i2c_bus = fe->dvb->priv;

	struct em28xx *dev = i2c_bus->dev;

	u8 lna;



	if (c->lna == 1)

		lna = 0x01;

	else

		lna = 0x00;



	return em28xx_write_reg_bits(dev, EM2874_R80_GPIO_P0_CTRL, lna, 0x01);

}



static int em28xx_mt352_terratec_xs_init(struct dvb_frontend *fe)

{

	/* Values extracted from a USB trace of the Terratec Windows driver */
@@ -1553,6 +1568,7 @@ static int em28xx_dvb_init(struct em28xx *dev) 
			}



			dvb->i2c_client_tuner = client;

			dvb->fe[0]->ops.set_lna = em28xx_pctv_292e_set_lna;

		}

		break;

	default: