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i2c: sh_mobile: replace magic hex values with constants

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No functional change, binaries are identical.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
This commit is contained in:
Wolfram Sang 2014-05-02 21:15:07 +02:00 committed by Wolfram Sang
parent 218e149613
commit a78f6a4140
1 changed files with 6 additions and 5 deletions
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11
drivers/i2c/busses/i2c-sh_mobile.c
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@ -316,7 +316,7 @@ static unsigned char i2c_op(struct sh_mobile_i2c_data *pd,
switch (op) {
case OP_START: /* issue start and trigger DTE interrupt */
iic_wr(pd, ICCR, 0x94);
iic_wr(pd, ICCR, ICCR_ICE | ICCR_TRS | ICCR_BBSY);
break;
case OP_TX_FIRST: /* disable DTE interrupt and write data */
iic_wr(pd, ICIC, ICIC_WAITE | ICIC_ALE | ICIC_TACKE);
@ -327,10 +327,11 @@ static unsigned char i2c_op(struct sh_mobile_i2c_data *pd,
break;
case OP_TX_STOP: /* write data and issue a stop afterwards */
iic_wr(pd, ICDR, data);
iic_wr(pd, ICCR, pd->send_stop ? 0x90 : 0x94);
iic_wr(pd, ICCR, pd->send_stop ? ICCR_ICE | ICCR_TRS
: ICCR_ICE | ICCR_TRS | ICCR_BBSY);
break;
case OP_TX_TO_RX: /* select read mode */
iic_wr(pd, ICCR, 0x81);
iic_wr(pd, ICCR, ICCR_ICE | ICCR_SCP);
break;
case OP_RX: /* just read data */
ret = iic_rd(pd, ICDR);
@ -338,13 +339,13 @@ static unsigned char i2c_op(struct sh_mobile_i2c_data *pd,
case OP_RX_STOP: /* enable DTE interrupt, issue stop */
iic_wr(pd, ICIC,
ICIC_DTEE | ICIC_WAITE | ICIC_ALE | ICIC_TACKE);
iic_wr(pd, ICCR, 0xc0);
iic_wr(pd, ICCR, ICCR_ICE | ICCR_RACK);
break;
case OP_RX_STOP_DATA: /* enable DTE interrupt, read data, issue stop */
iic_wr(pd, ICIC,
ICIC_DTEE | ICIC_WAITE | ICIC_ALE | ICIC_TACKE);
ret = iic_rd(pd, ICDR);
iic_wr(pd, ICCR, 0xc0);
iic_wr(pd, ICCR, ICCR_ICE | ICCR_RACK);
break;
}