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| author | Hans de Goede <hdegoede@redhat.com> | 2015-06-17 21:33:54 +0200 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-07-21 17:39:37 -0600 |
| commit | 15837236386191f2a26706b5ee56cdb4ab28e6d5 (patch) | |
| tree | dd84bb180cbecfe09bbab7bd1950ba7d87485a1b /drivers/usb/musb-new/musb_dsps.c | |
| parent | fd1bd21bf07d0770bff7b477d501b706dac9987d (diff) | |
| download | blackbird-obmc-uboot-15837236386191f2a26706b5ee56cdb4ab28e6d5.tar.gz blackbird-obmc-uboot-15837236386191f2a26706b5ee56cdb4ab28e6d5.zip | |
musb: Allow musb_platform_enable to return an error code
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>
Acked-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/usb/musb-new/musb_dsps.c')
| -rw-r--r-- | drivers/usb/musb-new/musb_dsps.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/usb/musb-new/musb_dsps.c b/drivers/usb/musb-new/musb_dsps.c index 17ed224488..895939773a 100644 --- a/drivers/usb/musb-new/musb_dsps.c +++ b/drivers/usb/musb-new/musb_dsps.c @@ -156,7 +156,11 @@ struct dsps_glue { /** * dsps_musb_enable - enable interrupts */ +#ifndef __UBOOT__ static void dsps_musb_enable(struct musb *musb) +#else +static int dsps_musb_enable(struct musb *musb) +#endif { #ifndef __UBOOT__ struct device *dev = musb->controller; @@ -181,6 +185,8 @@ static void dsps_musb_enable(struct musb *musb) if (is_otg_enabled(musb)) dsps_writel(reg_base, wrp->coreintr_set, (1 << wrp->drvvbus) << wrp->usb_shift); +#else + return 0; #endif } |
