[U-Boot] [PATCH 11/22] musb: Allow musb_platform_enable to return an error code

Simon Glass
2015-06-29T03:45:21Z

On 17 June 2015 at 13:33, Hans de Goede <hdegoede@redhat.com> wrote:
> Allow musb_platform_enable to return an error code and propagate it up to
> usb_lowlevel_init().
>
> This allows moving the checks for an external vbus being present to be
> moved from platform_init to platform_enable, so that the user can unplug a
> charger, plug in a host adapter with a usb-device, do a "usb reset" and
> have things working.
>
> This also allows adding a check for the id-pin to platform_enable, so that
> it can short circuit the 1s delay in usb_lowlevel_init() when no host cable
> is plugged in and thus waiting for a device to show up is useless.
>
> Note that all the changes to code shared with the kernel are wrapped in
> the kernel.
>
> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
> ---
> drivers/usb/musb-new/am35x.c | 7 +++++++
> drivers/usb/musb-new/musb_core.c | 20 ++++++++++++++++++++
> drivers/usb/musb-new/musb_core.h | 18 ++++++++++++++++++
> drivers/usb/musb-new/musb_dsps.c | 6 ++++++
> drivers/usb/musb-new/musb_uboot.c | 6 +++++-
> drivers/usb/musb-new/omap2430.c | 5 +++++
> drivers/usb/musb-new/sunxi.c | 5 +++--
> 7 files changed, 64 insertions(+), 3 deletions(-)

Acked-by: Simon Glass <sjg@chromium.org>