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cmd_i2c: quit I2C commands immediately on error

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If the i2c driver returns an error status, error out immediately.
Continuing the loop just results in printing error messages
again and again.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Heiko Schocher <hs@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Masahiro Yamada 2015-02-05 13:50:26 +09:00 committed by Heiko Schocher
parent 1320112c8a
commit 9e533cb046
1 changed files with 13 additions and 13 deletions
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26
common/cmd_i2c.c
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@ -518,7 +518,7 @@ static int do_i2c_md ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]
ret = i2c_read(chip, addr, alen, linebuf, linebytes);
#endif
if (ret)
i2c_report_err(ret, I2C_ERR_READ);
return i2c_report_err(ret, I2C_ERR_READ);
else {
printf("%04x:", addr);
cp = linebuf;
@ -616,7 +616,7 @@ static int do_i2c_mw ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]
ret = i2c_write(chip, addr++, alen, &byte, 1);
#endif
if (ret)
i2c_report_err(ret, I2C_ERR_WRITE);
return i2c_report_err(ret, I2C_ERR_WRITE);
/*
* Wait for the write to complete. The write can take
* up to 10mSec (we allow a little more time).
@ -798,16 +798,15 @@ mod_i2c_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char * const arg
ret = i2c_read(chip, addr, alen, (uchar *)&data, size);
#endif
if (ret)
i2c_report_err(ret, I2C_ERR_READ);
else {
data = cpu_to_be32(data);
if (size == 1)
printf(" %02lx", (data >> 24) & 0x000000FF);
else if (size == 2)
printf(" %04lx", (data >> 16) & 0x0000FFFF);
else
printf(" %08lx", data);
}
return i2c_report_err(ret, I2C_ERR_READ);
data = cpu_to_be32(data);
if (size == 1)
printf(" %02lx", (data >> 24) & 0x000000FF);
else if (size == 2)
printf(" %04lx", (data >> 16) & 0x0000FFFF);
else
printf(" %08lx", data);
nbytes = cli_readline(" ? ");
if (nbytes == 0) {
@ -848,7 +847,8 @@ mod_i2c_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char * const arg
(uchar *)&data, size);
#endif
if (ret)
i2c_report_err(ret, I2C_ERR_WRITE);
return i2c_report_err(ret,
I2C_ERR_WRITE);
#ifdef CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS
udelay(CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS * 1000);
#endif