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| author | Hans de Goede | 2015-03-29 12:50:47 +0200 |
|---|---|---|
| committer | Felipe Balbi | 2015-05-26 17:38:24 +0200 |
| commit | 591fa9dd3fee3de8c729febca395beb75c8ee819 (patch) | |
| tree | 4865918e64a577f41203c2a85768c62992d659c4 /drivers/usb/musb/musb_virthub.c | |
| parent | usb: renesas_usbhs: avoid uninitialized variable use (diff) | |
| download | kernel-qcow2-linux-591fa9dd3fee3de8c729febca395beb75c8ee819.tar.gz kernel-qcow2-linux-591fa9dd3fee3de8c729febca395beb75c8ee819.tar.xz kernel-qcow2-linux-591fa9dd3fee3de8c729febca395beb75c8ee819.zip | |
usb: musb: Add pre and post root port reset end callbacks
The sunxi otg phy has a bug where it wrongly detects a high speed squelch
when reset on the root port gets de-asserted with a lo-speed device.
The workaround for this is to disable squelch detect before de-asserting
reset, and re-enabling it after the reset de-assert is done.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/musb/musb_virthub.c')
| -rw-r--r-- | drivers/usb/musb/musb_virthub.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/musb/musb_virthub.c b/drivers/usb/musb/musb_virthub.c index 86c4b533e90b..30842bc195f5 100644 --- a/drivers/usb/musb/musb_virthub.c +++ b/drivers/usb/musb/musb_virthub.c @@ -195,8 +195,10 @@ void musb_port_reset(struct musb *musb, bool do_reset) msecs_to_jiffies(50)); } else { dev_dbg(musb->controller, "root port reset stopped\n"); + musb_platform_pre_root_reset_end(musb); musb_writeb(mbase, MUSB_POWER, power & ~MUSB_POWER_RESET); + musb_platform_post_root_reset_end(musb); power = musb_readb(mbase, MUSB_POWER); if (power & MUSB_POWER_HSMODE) { |