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| author | Troy Kisky <troy.kisky@boundarydevices.com> | 2012-07-19 08:18:07 +0000 |
|---|---|---|
| committer | Heiko Schocher <hs@denx.de> | 2012-07-31 07:43:25 +0200 |
| commit | c4330d283cefbd3574366e82910da3e918324b86 (patch) | |
| tree | 5cb0430edf47e49e65c5e4e90dfc43d807f57a76 /drivers | |
| parent | b230ddc267be2b9166421869549882d15b92e2ff (diff) | |
| download | u-boot-imx-c4330d283cefbd3574366e82910da3e918324b86.zip u-boot-imx-c4330d283cefbd3574366e82910da3e918324b86.tar.gz u-boot-imx-c4330d283cefbd3574366e82910da3e918324b86.tar.bz2 | |
mxc_i2c: call i2c_imx_stop on error in i2c_read/i2c_write
Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
Diffstat (limited to 'drivers')
| -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 4ce695a..55a688a 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(); |