Commit 84ddc33c authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab
Browse files

[media] r820t: add support for diplexer 



This is part of the original driver, and adding it doesn't hurt,
so add it, to better sync the code.

Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
Tested-by: default avatarAntti Palosaari <crope@iki.fi>
parent 6b8c2308

drivers/media/tuners/r820t.c

+12 −0
Original line number Diff line number Diff line
@@ -101,6 +101,7 @@ struct r820t_freq_range { 
};



#define VCO_POWER_REF   0x02

#define DIP_FREQ	32000000



/*

 * Static constants
@@ -751,6 +752,17 @@ static int r820t_sysfreq_sel(struct r820t_priv *priv, u32 freq, 
		break;

	}



	if (priv->cfg->use_diplexer &&

	   ((priv->cfg->rafael_chip == CHIP_R820T) ||

	   (priv->cfg->rafael_chip == CHIP_R828S) ||

	   (priv->cfg->rafael_chip == CHIP_R820C))) {

		if (freq > DIP_FREQ)

			air_cable1_in = 0x00;

		else

			air_cable1_in = 0x60;

		cable2_in = 0x00;

	}



	rc = r820t_write_reg_mask(priv, 0x1d, lna_top, 0xc7);

	if (rc < 0)

		return rc;

drivers/media/tuners/r820t.h

+1 −1
Original line number Diff line number Diff line
@@ -32,10 +32,10 @@ enum r820t_chip { 


struct r820t_config {

	u8 i2c_addr;		/* 0x34 */



	u32 xtal;

	enum r820t_chip rafael_chip;

	unsigned max_i2c_msg_len;

	bool use_diplexer;

};



#if IS_ENABLED(CONFIG_MEDIA_TUNER_R820T)