diff options
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/fsl_i2c.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/i2c/fsl_i2c.c b/drivers/i2c/fsl_i2c.c index 4d5552b..2241990 100644 --- a/drivers/i2c/fsl_i2c.c +++ b/drivers/i2c/fsl_i2c.c @@ -353,9 +353,10 @@ __i2c_read(u8 *data, int length) writeb(I2C_CR_MEN | I2C_CR_MSTA | I2C_CR_TXAK, &i2c_dev[i2c_bus_num]->cr); - /* Generate stop on last byte */ + /* Do not generate stop on last byte */ if (i == length - 1) - writeb(I2C_CR_MEN | I2C_CR_TXAK, &i2c_dev[i2c_bus_num]->cr); + writeb(I2C_CR_MEN | I2C_CR_MSTA | I2C_CR_MTX, + &i2c_dev[i2c_bus_num]->cr); data[i] = readb(&i2c_dev[i2c_bus_num]->dr); } @@ -378,11 +379,11 @@ i2c_read(u8 dev, uint addr, int alen, u8 *data, int length) && i2c_write_addr(dev, I2C_READ_BIT, 1) != 0) i = __i2c_read(data, length); - if (length && i2c_wait4bus()) /* Wait until STOP */ - debug("i2c_read: wait4bus timed out\n"); - writeb(I2C_CR_MEN, &i2c_dev[i2c_bus_num]->cr); + if (i2c_wait4bus()) /* Wait until STOP */ + debug("i2c_read: wait4bus timed out\n"); + if (i == length) return 0; |