Commit 27a5da02 authored by Troy Kisky's avatar Troy Kisky Committed by Heiko Schocher
Browse files

mxc_i2c: add i2c_regs argument to i2c_imx_stop



This is prep work for CONFIG_I2C_MULTI_BUS.
Signed-off-by: default avatarTroy Kisky <troy.kisky@boundarydevices.com>
Acked-by: default avatarMarek Vasut <marex@denx.de>
parent a7f1a005
......@@ -201,10 +201,9 @@ static int tx_byte(struct mxc_i2c_regs *i2c_regs, u8 byte)
/*
* Stop I2C transaction
*/
void i2c_imx_stop(void)
static void i2c_imx_stop(struct mxc_i2c_regs *i2c_regs)
{
int ret;
struct mxc_i2c_regs *i2c_regs = (struct mxc_i2c_regs *)I2C_BASE;
unsigned int temp = readb(&i2c_regs->i2cr);
temp &= ~(I2CR_MSTA | I2CR_MTX);
......@@ -271,7 +270,7 @@ static int i2c_init_transfer(struct mxc_i2c_regs *i2c_regs,
ret = i2c_init_transfer_(i2c_regs, chip, addr, alen);
if (ret >= 0)
return 0;
i2c_imx_stop();
i2c_imx_stop(i2c_regs);
if (ret == -ENODEV)
return ret;
......@@ -305,7 +304,7 @@ int i2c_read(uchar chip, uint addr, int alen, uchar *buf, int len)
ret = tx_byte(i2c_regs, (chip << 1) | 1);
if (ret < 0) {
i2c_imx_stop();
i2c_imx_stop(i2c_regs);
return ret;
}
......@@ -322,7 +321,7 @@ int i2c_read(uchar chip, uint addr, int alen, uchar *buf, int len)
for (i = 0; i < len; i++) {
ret = wait_for_sr_state(i2c_regs, ST_IIF);
if (ret < 0) {
i2c_imx_stop();
i2c_imx_stop(i2c_regs);
return ret;
}
......@@ -331,7 +330,7 @@ int i2c_read(uchar chip, uint addr, int alen, uchar *buf, int len)
* controller from generating another clock cycle
*/
if (i == (len - 1)) {
i2c_imx_stop();
i2c_imx_stop(i2c_regs);
} else if (i == (len - 2)) {
temp = readb(&i2c_regs->i2cr);
temp |= I2CR_TX_NO_AK;
......@@ -340,9 +339,7 @@ int i2c_read(uchar chip, uint addr, int alen, uchar *buf, int len)
writeb(0, &i2c_regs->i2sr);
buf[i] = readb(&i2c_regs->i2dr);
}
i2c_imx_stop();
i2c_imx_stop(i2c_regs);
return 0;
}
......@@ -364,9 +361,7 @@ int i2c_write(uchar chip, uint addr, int alen, uchar *buf, int len)
if (ret < 0)
break;
}
i2c_imx_stop();
i2c_imx_stop(i2c_regs);
return ret;
}
......
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