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i2c: sh_mobile: use direct writes when accessing ICE bit

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ICE bit is for resetting the module. Other bits don't matter then, so we
don't need to use the iic_set_clr() function but can use iic_wr().

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 2017-11-02 13:47:30 +01:00 committed by Wolfram Sang
parent 91a5e63e3f
commit 832a522a3e
1 changed files with 3 additions and 3 deletions
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6
drivers/i2c/busses/i2c-sh_mobile.c
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@ -620,10 +620,10 @@ static int start_ch(struct sh_mobile_i2c_data *pd, struct i2c_msg *usr_msg,
if (do_init) {
/* Initialize channel registers */
iic_set_clr(pd, ICCR, 0, ICCR_ICE);
iic_wr(pd, ICCR, 0);
/* Enable channel and configure rx ack */
iic_set_clr(pd, ICCR, ICCR_ICE, 0);
iic_wr(pd, ICCR, ICCR_ICE);
/* Set the clock */
iic_wr(pd, ICCL, pd->iccl & 0xff);
@ -740,7 +740,7 @@ static int sh_mobile_i2c_xfer(struct i2c_adapter *adapter,
}
/* Disable channel */
iic_set_clr(pd, ICCR, 0, ICCR_ICE);
iic_wr(pd, ICCR, 0);
/* Disable clock and mark device as idle */
clk_disable_unprepare(pd->clk);