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i2c: meson: fix return codes on error

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Change meson_i2c_xfer_msg() to return -EREMOTEIO in case of NACK, as
done by other drivers. Also, don't change the return error in
meson_i2c_xfer().

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heiko Schocher <hs@denx.de>
This commit is contained in:
Beniamino Galvani 2017-11-26 17:40:56 +01:00 committed by Heiko Schocher
parent 8c47ab6b3b
commit 989bb924c4
1 changed files with 2 additions and 2 deletions
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4
drivers/i2c/meson_i2c.c
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@ -178,7 +178,7 @@ static int meson_i2c_xfer_msg(struct meson_i2c *i2c, struct i2c_msg *msg,
if (readl(&i2c->regs->ctrl) & REG_CTRL_ERROR) {
debug("meson i2c: error\n");
return -ENXIO;
return -EREMOTEIO;
}
if ((msg->flags & I2C_M_RD) && i2c->count) {
@ -200,7 +200,7 @@ static int meson_i2c_xfer(struct udevice *bus, struct i2c_msg *msg,
for (i = 0; i < nmsgs; i++) {
ret = meson_i2c_xfer_msg(i2c, msg + i, i == nmsgs - 1);
if (ret)
return -EREMOTEIO;
return ret;
}
return 0;