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[media] si2165: create function si2165_write_reg_list for writing register lists 

It is common the need of writing a table of values. Add a function to provide a
helper to address such case. This will allow further code cleanups.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Matthias Schwarzott 2015-11-19 18:03:55 -02:00 committed by Mauro Carvalho Chehab
parent c1c49674ea
commit a5293dbd70
1 changed files with 21 additions and 0 deletions
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21
drivers/media/dvb-frontends/si2165.c
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@ -243,6 +243,27 @@ static int si2165_writereg_mask8(struct si2165_state *state, const u16 reg,
return ret; return ret;
} }
#define REG16(reg, val) { (reg), (val) & 0xff }, { (reg)+1, (val)>>8 & 0xff }
struct si2165_reg_value_pair {
u16 reg;
u8 val;
};
static int si2165_write_reg_list(struct si2165_state *state,
const struct si2165_reg_value_pair *regs,
int count)
{
int i;
int ret;
for (i = 0; i < count; i++) {
ret = si2165_writereg8(state, regs[i].reg, regs[i].val);
if (ret < 0)
return ret;
}
return 0;
}
static int si2165_get_tune_settings(struct dvb_frontend *fe, static int si2165_get_tune_settings(struct dvb_frontend *fe,
struct dvb_frontend_tune_settings *s) struct dvb_frontend_tune_settings *s)
{ {