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| author | Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> | 2016-10-20 06:19:19 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-10-24 14:35:46 +0200 |
| commit | b76032396d7958f006bccf5fb2535beb5526837c (patch) | |
| tree | a445204f4d0a5bdf22f02741b373a56a700e11ea /drivers/usb/chipidea/host.c | |
| parent | usb: increase ohci watchdog delay to 275 msec (diff) | |
| download | linux-b76032396d7958f006bccf5fb2535beb5526837c.tar.xz linux-b76032396d7958f006bccf5fb2535beb5526837c.zip | |
usb: renesas_usbhs: add wait after initialization for R-Car Gen3
Since the controller on R-Car Gen3 doesn't have any status registers
to detect initialization (LPSTS.SUSPM = 1) and the initialization needs
up to 45 usec, this patch adds wait after the initialization. Otherwise,
writing other registers (e.g. INTENB0) will fail.
Fixes: de18757e272d ("usb: renesas_usbhs: add R-Car Gen3 power control")
Cc: <stable@vger.kernel.org> # v4.6+
Cc: <balbi@kernel.org>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/chipidea/host.c')
0 files changed, 0 insertions, 0 deletions