[PATCH v4] USB: Fix of_usb_get_dr_mode_by_phy with a shared phy block

[b-liu@ti.com (Bin Liu)]

Hi,

On Fri, Jun 10, 2016 at 11:46:25AM +0200, Hans de Goede wrote:
> Some SoCs have a single phy-hw-block with multiple phys, this is
> modelled by a single phy dts node, so we end up with multiple
> controller nodes with a phys property pointing to the phy-node
> of the otg-phy.
> 
> Only one of these controllers typically is an otg controller, yet we
> were checking the first controller who uses a phy from the block and
> then end up looking for a dr_mode property in e.g. the ehci controller.
> 
> This commit fixes this by adding an arg0 parameter to
> of_usb_get_dr_mode_by_phy and make of_usb_get_dr_mode_by_phy
> check that this matches the phandle args[0] value when looking for
> the otg controller.
> 
> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
> ---
> Changes in v2:
> -Add a arg0 parameter instead of looking for nodes with a dr_mode property
> Changes in v3:
> -No changes
> Changes in v4:
> -When arg0 == -1, use of_parse_phandle instead of of_parse_phandle_with_args
>  because using of_parse_phandle_with_args breaks phy's which use the usb-phy
>  bindings instead of the generic phy bindings

I would think you'd better send this patch with --in-reply-to to the
patch in v3, so whoever picks it can easily pick the whole patch set,
especially in this case the set touches multiple modules, and you don't
want to resend the other patches.

Regards,
-Bin.