diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/i2c/mxc_i2c.c | 25 |
1 files changed, 8 insertions, 17 deletions
diff --git a/drivers/i2c/mxc_i2c.c b/drivers/i2c/mxc_i2c.c index 55a688a..626e13e 100644 --- a/drivers/i2c/mxc_i2c.c +++ b/drivers/i2c/mxc_i2c.c @@ -302,23 +302,6 @@ exit: } /* - * Try if a chip add given address responds (probe the chip) - */ -int i2c_probe(uchar chip) -{ - struct mxc_i2c_regs *i2c_regs = (struct mxc_i2c_regs *)I2C_BASE; - int ret; - - ret = i2c_imx_start(); - if (ret) - return ret; - - ret = tx_byte(i2c_regs, chip << 1); - i2c_imx_stop(); - return ret; -} - -/* * Read data from I2C device */ int i2c_read(uchar chip, uint addr, int alen, uchar *buf, int len) @@ -406,3 +389,11 @@ int i2c_write(uchar chip, uint addr, int alen, uchar *buf, int len) return ret; } + +/* + * Test if a chip at a given address responds (probe the chip) + */ +int i2c_probe(uchar chip) +{ + return i2c_write(chip, 0, 0, NULL, 0); +} |