On 29.12.2016 23:50, Moritz Fischer wrote:
> For mux check if the parent is already a device of UCLASS_I2C and if yes
> just use that. Otherwise see if someone specified an i2c-parent phandle.
> This mimics the behavior found in the Kernel, as it removes the
> requirement to explicitly specify a i2c-parent phandle.
>
> Signed-off-by: Moritz Fischer <moritz.fisc...@ettus.com>
> Cc: Heiko Schocher <h...@denx.de>
> Cc: Bin Meng <bmeng...@gmail.com>
> Cc: Simon Glass <s...@chromium.org>
> Cc: Michal Simek <michal.si...@xilinx.com>
> Cc: u-boot@lists.denx.de
> ---
> drivers/i2c/muxes/i2c-mux-uclass.c | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
> diff --git a/drivers/i2c/muxes/i2c-mux-uclass.c
> b/drivers/i2c/muxes/i2c-mux-uclass.c
> index 7a698b6..e01b773 100644
> --- a/drivers/i2c/muxes/i2c-mux-uclass.c
> +++ b/drivers/i2c/muxes/i2c-mux-uclass.c
> @@ -86,6 +86,15 @@ static int i2c_mux_post_probe(struct udevice *mux)
> debug("%s: %s\n", __func__, mux->name);
> priv->selected = -1;
>
> + /* if parent is of i2c uclass already, we'll take that, otherwise
> + * look if we find an i2c-parent phandle */
Incorrect comment style.
> + if (UCLASS_I2C == device_get_uclass_id(mux->parent)) {
> + priv->i2c_bus = dev_get_parent(mux);
> + debug("%s: bus=%p/%s\n", __func__, priv->i2c_bus,
> + priv->i2c_bus->name);
> + return 0;
> + }
> +
> ret = uclass_get_device_by_phandle(UCLASS_I2C, mux, "i2c-parent",
> &priv->i2c_bus);
> if (ret)
>
The part of this will be good to also handle
req_seq for mux busses. But at least this should solved part of the
problems.
Thanks,
Michal
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