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-rw-r--r--drivers/i2c/mxc_i2c.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/i2c/mxc_i2c.c b/drivers/i2c/mxc_i2c.c
index c00ead1..73d8958 100644
--- a/drivers/i2c/mxc_i2c.c
+++ b/drivers/i2c/mxc_i2c.c
@@ -416,6 +416,23 @@ static int i2c_idle_bus(void *base)
return 0;
}
+#ifdef CONFIG_I2C_MULTI_BUS
+unsigned int i2c_get_bus_num(void)
+{
+ return srdata.curr_i2c_bus;
+}
+
+int i2c_set_bus_num(unsigned bus_idx)
+{
+ if (bus_idx >= ARRAY_SIZE(srdata.i2c_data))
+ return -1;
+ if (!srdata.i2c_data[bus_idx].base)
+ return -1;
+ srdata.curr_i2c_bus = bus_idx;
+ return 0;
+}
+#endif
+
int i2c_read(uchar chip, uint addr, int alen, uchar *buf, int len)
{
return bus_i2c_read(get_base(), chip, addr, alen, buf, len);