diff options
Diffstat (limited to 'drivers/i2c/mxc_i2c.c')
| -rw-r--r-- | drivers/i2c/mxc_i2c.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/i2c/mxc_i2c.c b/drivers/i2c/mxc_i2c.c index 4ce695a52..55a688a80 100644 --- a/drivers/i2c/mxc_i2c.c +++ b/drivers/i2c/mxc_i2c.c @@ -337,8 +337,10 @@ int i2c_read(uchar chip, uint addr, int alen, uchar *buf, int len) writeb(temp, &i2c_regs->i2cr); ret = tx_byte(i2c_regs, (chip << 1) | 1); - if (ret < 0) + if (ret < 0) { + i2c_imx_stop(); return ret; + } /* setup bus to read data */ temp = readb(&i2c_regs->i2cr); @@ -352,8 +354,10 @@ int i2c_read(uchar chip, uint addr, int alen, uchar *buf, int len) /* read data */ for (i = 0; i < len; i++) { ret = i2c_imx_trx_complete(); - if (ret) + if (ret) { + i2c_imx_stop(); return ret; + } /* * It must generate STOP before read I2DR to prevent @@ -395,7 +399,7 @@ int i2c_write(uchar chip, uint addr, int alen, uchar *buf, int len) for (i = 0; i < len; i++) { ret = tx_byte(i2c_regs, buf[i]); if (ret < 0) - return ret; + break; } i2c_imx_stop(); |