diff options
Diffstat (limited to 'drivers/i2c/soft_i2c.c')
| -rw-r--r-- | drivers/i2c/soft_i2c.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/i2c/soft_i2c.c b/drivers/i2c/soft_i2c.c index 63e6a7b..0a9feb6 100644 --- a/drivers/i2c/soft_i2c.c +++ b/drivers/i2c/soft_i2c.c @@ -223,10 +223,23 @@ unsigned int i2c_get_bus_num(void) int i2c_set_bus_num(unsigned int bus) { +#if defined(CONFIG_I2C_MUX) + if (bus < CFG_MAX_I2C_BUS) { + i2c_bus_num = bus; + } else { + int ret; + + ret = i2x_mux_select_mux(bus); + if (ret == 0) + i2c_bus_num = bus; + else + return ret; + } +#else if (bus >= CFG_MAX_I2C_BUS) return -1; i2c_bus_num = bus; - +#endif return 0; } |