[U-Boot] [PATCH 18/24] mxc_i2c.c: finish adding CONFIG_I2C_MULTI_BUS support

Marek Vasut
2012-06-22T17:09:42Z

Dear Troy Kisky,

> Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
> ---
> drivers/i2c/mxc_i2c.c | 17 +++++++++++++++++
> 1 file changed, 17 insertions(+)
>
> diff --git a/drivers/i2c/mxc_i2c.c b/drivers/i2c/mxc_i2c.c
> index 339bb6f..5d18752 100644
> --- a/drivers/i2c/mxc_i2c.c
> +++ b/drivers/i2c/mxc_i2c.c
> @@ -407,6 +407,23 @@ static void toggle_i2c(void *base)
> p->toggle_fn(p->toggle_data);
> }
>
> +#ifdef CONFIG_I2C_MULTI_BUS
> +unsigned int i2c_get_bus_num(void)
> +{
> + return g_bus;

Is this global variable? If so, it won't work before relocation. And i2c can be
enabled before relocation.

> +}
> +
> +int i2c_set_bus_num(unsigned bus_idx)
> +{
> + if (bus_idx >= ARRAY_SIZE(g_parms))
> + return -1;
> + if (!g_parms[bus_idx].base)
> + return -1;
> + g_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);

Best regards,
Marek Vasut