[PATCH] usb: dwc2: Add extra delay when forcing dr_mode

[Heiko Stuebner]

Am Donnerstag, 4. Februar 2016, 17:50:34 schrieb John Youn:
> Fixes an issue found on rockchip rk3036-based SOC platforms. For some
> reason, the existing msleep(25) is not enough after the force mode. The
> following patch was reported to fix the issue.
> 
> This does increase the probe delay again slightly, but not up to the
> level it was before the original series of patches that this fixes. It
> does not cause any other issues when tested on Synopsys HAPS and Altera
> socfpga platforms.
> 
> Need to revisit this series next release to see if we can address these
> issues without having an unconditional delay.
> 
> Fixes: 09c96980dc72 ("usb: dwc2: Add functions to set and clear force
> mode") Reported-by: Caesar Wang <caesar.upstream at gmail.com>
> Tested-by: Caesar Wang <caesar.upstream at gmail.com>
> Signed-off-by: John Youn <johnyoun at synopsys.com>

Tested-by: Heiko Stuebner <heiko at sntech.de>
(also on a rk3036 where I hit the described problem)