Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-24 21:54:01 +00:00
Code Issues Projects Releases Packages Wiki Activity

cmd_i2c: quit I2C commands immediately on error

Browse source 
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
Show stats Download patch file Download diff file Expand all files Collapse all files

26
common/cmd_i2c.c
View file

@ -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