diff options
| author | Felipe Balbi <balbi@ti.com> | 2014-04-07 10:58:01 -0500 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2014-04-15 12:08:02 -0500 |
| commit | 8b2bc2c9351b4c09bc3d9096e2a7af3988565dbf (patch) | |
| tree | 28b4585b1ffc5b76b0ae776cb89444c1ad8ff50e /drivers/usb | |
| parent | 3063a12be2b07c64e9802708a19489342e64c1a3 (diff) | |
| download | linux-8b2bc2c9351b4c09bc3d9096e2a7af3988565dbf.tar.gz linux-8b2bc2c9351b4c09bc3d9096e2a7af3988565dbf.tar.xz | |
usb: musb: omap2430: make sure clocks are enabled when running mailbox
on early initialization we could fall into
a situation where the mailbox is called before
MUSB's clocks are running, in order to avoid
that, make sure mailbox is always wrapped with
pm_runtime calls.
Reported-by: Stefan Roese <sr@denx.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/musb/omap2430.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c index 819a7cdcb866..d369bf1f3936 100644 --- a/drivers/usb/musb/omap2430.c +++ b/drivers/usb/musb/omap2430.c @@ -316,7 +316,13 @@ static void omap_musb_mailbox_work(struct work_struct *mailbox_work) { struct omap2430_glue *glue = container_of(mailbox_work, struct omap2430_glue, omap_musb_mailbox_work); + struct musb *musb = glue_to_musb(glue); + struct device *dev = musb->controller; + + pm_runtime_get_sync(dev); omap_musb_set_mailbox(glue); + pm_runtime_mark_last_busy(dev); + pm_runtime_put_autosuspend(dev); } static irqreturn_t omap2430_musb_interrupt(int irq, void *__hci) |