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mxc_i2c: finish adding CONFIG_I2C_MULTI_BUS support

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Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
This commit is contained in:
Troy Kisky 2012-07-19 08:18:20 +00:00 • committed by Heiko Schocher
parent 96c19bd3ef
commit 9815326d04
1 changed files with 17 additions and 0 deletions
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17
drivers/i2c/mxc_i2c.c
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@ -416,6 +416,23 @@ static int i2c_idle_bus(void *base)
return 0; 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) int i2c_read(uchar chip, uint addr, int alen, uchar *buf, int len)
{ {
return bus_i2c_read(get_base(), chip, addr, alen, buf, len); return bus_i2c_read(get_base(), chip, addr, alen, buf, len);