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[media] au8522 Remove 0x4 bit for register reads 

The second highest bit in the register value is an indicator to do
a register read, so remove it since now au8522_regread() inserts
the bit automatically.

Also remove a stray instance where we were actually trying to write
to the I2C status register, which was actually a read.

Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Devin Heitmueller 2017-04-19 20:13:49 -03:00 committed by Mauro Carvalho Chehab
parent d6f79a915f
commit 6211d28eab
1 changed files with 7 additions and 8 deletions
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15
drivers/media/dvb-frontends/au8522_dig.c
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@ -284,7 +284,6 @@ static struct {
u16 data;
} VSB_mod_tab[] = {
{ 0x0090, 0x84 },
{ 0x4092, 0x11 },
{ 0x2005, 0x00 },
{ 0x0091, 0x80 },
{ 0x00a3, 0x0c },
@ -654,12 +653,12 @@ static int au8522_read_status(struct dvb_frontend *fe, enum fe_status *status)
if (state->current_modulation == VSB_8) {
dprintk("%s() Checking VSB_8\n", __func__);
reg = au8522_readreg(state, 0x4088);
reg = au8522_readreg(state, 0x0088);
if ((reg & 0x03) == 0x03)
*status |= FE_HAS_LOCK | FE_HAS_SYNC | FE_HAS_VITERBI;
} else {
dprintk("%s() Checking QAM\n", __func__);
reg = au8522_readreg(state, 0x4541);
reg = au8522_readreg(state, 0x0541);
if (reg & 0x80)
*status |= FE_HAS_VITERBI;
if (reg & 0x20)
@ -745,17 +744,17 @@ static int au8522_read_snr(struct dvb_frontend *fe, u16 *snr)
if (state->current_modulation == QAM_256)
ret = au8522_mse2snr_lookup(qam256_mse2snr_tab,
ARRAY_SIZE(qam256_mse2snr_tab),
au8522_readreg(state, 0x4522),
au8522_readreg(state, 0x0522),
snr);
else if (state->current_modulation == QAM_64)
ret = au8522_mse2snr_lookup(qam64_mse2snr_tab,
ARRAY_SIZE(qam64_mse2snr_tab),
au8522_readreg(state, 0x4522),
au8522_readreg(state, 0x0522),
snr);
else /* VSB_8 */
ret = au8522_mse2snr_lookup(vsb_mse2snr_tab,
ARRAY_SIZE(vsb_mse2snr_tab),
au8522_readreg(state, 0x4311),
au8522_readreg(state, 0x0311),
snr);
if (state->config.led_cfg)
@ -804,9 +803,9 @@ static int au8522_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
struct au8522_state *state = fe->demodulator_priv;
if (state->current_modulation == VSB_8)
*ucblocks = au8522_readreg(state, 0x4087);
*ucblocks = au8522_readreg(state, 0x0087);
else
*ucblocks = au8522_readreg(state, 0x4543);
*ucblocks = au8522_readreg(state, 0x0543);
return 0;
}