From 01b461bbe74b89da8941f4c95711777d87b9172e Mon Sep 17 00:00:00 2001 From: Bimow Chen Date: Tue, 5 Aug 2014 00:14:47 -0300 Subject: [media] it913x: init tuner on attach That register is needed to program very first in order to operate correctly. [crope@iki.fi: returned sequence back, removed sleep, moved reg write earlier to prevent populating tuner ops in case of failure] Cc: # v3.15+ Signed-off-by: Bimow Chen Signed-off-by: Antti Palosaari Signed-off-by: Mauro Carvalho Chehab --- drivers/media/tuners/tuner_it913x.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/media/tuners') diff --git a/drivers/media/tuners/tuner_it913x.c b/drivers/media/tuners/tuner_it913x.c index 6f30d7e..3d83c42 100644 --- a/drivers/media/tuners/tuner_it913x.c +++ b/drivers/media/tuners/tuner_it913x.c @@ -396,6 +396,7 @@ struct dvb_frontend *it913x_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c_adap, u8 i2c_addr, u8 config) { struct it913x_state *state = NULL; + int ret; /* allocate memory for the internal state */ state = kzalloc(sizeof(struct it913x_state), GFP_KERNEL); @@ -425,6 +426,11 @@ struct dvb_frontend *it913x_attach(struct dvb_frontend *fe, state->tuner_type = config; state->firmware_ver = 1; + /* tuner RF initial */ + ret = it913x_wr_reg(state, PRO_DMOD, 0xec4c, 0x68); + if (ret < 0) + goto error; + fe->tuner_priv = state; memcpy(&fe->ops.tuner_ops, &it913x_tuner_ops, sizeof(struct dvb_tuner_ops)); -- cgit v1.1