[PATCH 2/5] i2c: mediatek: remove useless code and replace definitions

qii.wang
2018-12-03T13:32:51Z

From: qii wang <qii.wang@mediatek.com>

Completion_done is useless when we don't use its return value,
so we remove it. Different speeds have been defined by macros,
so we use macros definitions.

Signed-off-by: qii wang <qii.wang@mediatek.com>
---
drivers/i2c/busses/i2c-mt65xx.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/i2c/busses/i2c-mt65xx.c b/drivers/i2c/busses/i2c-mt65xx.c
index a74ef76..660de1e 100644
--- a/drivers/i2c/busses/i2c-mt65xx.c
+++ b/drivers/i2c/busses/i2c-mt65xx.c
@@ -456,7 +456,7 @@ static int mtk_i2c_do_transfer(struct mtk_i2c *i2c, struct i2c_msg *msgs,

control_reg = readw(i2c->base + OFFSET_CONTROL) &
~(I2C_CONTROL_DIR_CHANGE | I2C_CONTROL_RS);
- if ((i2c->speed_hz > 400000) || (left_num >= 1))
+ if ((i2c->speed_hz > MAX_FS_MODE_SPEED) || (left_num >= 1))
control_reg |= I2C_CONTROL_RS;

if (i2c->op == I2C_MASTER_WRRD)
@@ -465,7 +465,7 @@ static int mtk_i2c_do_transfer(struct mtk_i2c *i2c, struct i2c_msg *msgs,
writew(control_reg, i2c->base + OFFSET_CONTROL);

/* set start condition */
- if (i2c->speed_hz <= 100000)
+ if (i2c->speed_hz <= I2C_DEFAULT_SPEED)
writew(I2C_ST_START_CON, i2c->base + OFFSET_EXT_CONF);
else
writew(I2C_FS_START_CON, i2c->base + OFFSET_EXT_CONF);
@@ -642,8 +642,6 @@ static int mtk_i2c_do_transfer(struct mtk_i2c *i2c, struct i2c_msg *msgs,
return -ETIMEDOUT;
}

- completion_done(&i2c->msg_complete);
-
if (i2c->irq_stat & (I2C_HS_NACKERR | I2C_ACKERR)) {
dev_dbg(i2c->dev, "addr: %x, transfer ACK error\n", msgs->addr);
mtk_i2c_init_hw(i2c);
--
1.7.9.5