Searched hist:"90 cdc1039d0bf6d85bb497dbb93d317ad234e846" (Results 1 – 3 of 3) sorted by relevance
| /rk3399_rockchip-uboot/drivers/usb/musb-new/ |
| H A D | musb_uboot.c | 90cdc1039d0bf6d85bb497dbb93d317ad234e846 Sun Jan 11 19:34:51 UTC 2015 Hans de Goede <hdegoede@redhat.com> musb-new: Fix reset sequence when in host mode
This commit fixes a number of issues with the reset sequence of musb-new
in host mode:
1) Our usb device probe relies on a second device reset being done after the
first descriptors read. Factor the musb reset code into a usb_reset_root_port
function (and add this as an empty define for other controllers), and call
this when a device has no parent.
2) Just like with normal usb controllers there needs to be a delay after
reset, for normal usb controllers, this is handled in hub_port_reset, add a
delay to usb_reset_root_port.
3) Sync the musb reset sequence with the upstream kernel, clear all bits of
power except bits 4-7, and increase the time reset is asserted to 50 ms.
With these fixes an usb keyboard I have now always enumerates properly, where
as earlier it would only enumerare properly once every 5 tries.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
|
| /rk3399_rockchip-uboot/include/ |
| H A D | usb.h | 90cdc1039d0bf6d85bb497dbb93d317ad234e846 Sun Jan 11 19:34:51 UTC 2015 Hans de Goede <hdegoede@redhat.com> musb-new: Fix reset sequence when in host mode
This commit fixes a number of issues with the reset sequence of musb-new
in host mode:
1) Our usb device probe relies on a second device reset being done after the
first descriptors read. Factor the musb reset code into a usb_reset_root_port
function (and add this as an empty define for other controllers), and call
this when a device has no parent.
2) Just like with normal usb controllers there needs to be a delay after
reset, for normal usb controllers, this is handled in hub_port_reset, add a
delay to usb_reset_root_port.
3) Sync the musb reset sequence with the upstream kernel, clear all bits of
power except bits 4-7, and increase the time reset is asserted to 50 ms.
With these fixes an usb keyboard I have now always enumerates properly, where
as earlier it would only enumerare properly once every 5 tries.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
|
| /rk3399_rockchip-uboot/common/ |
| H A D | usb.c | 90cdc1039d0bf6d85bb497dbb93d317ad234e846 Sun Jan 11 19:34:51 UTC 2015 Hans de Goede <hdegoede@redhat.com> musb-new: Fix reset sequence when in host mode
This commit fixes a number of issues with the reset sequence of musb-new
in host mode:
1) Our usb device probe relies on a second device reset being done after the
first descriptors read. Factor the musb reset code into a usb_reset_root_port
function (and add this as an empty define for other controllers), and call
this when a device has no parent.
2) Just like with normal usb controllers there needs to be a delay after
reset, for normal usb controllers, this is handled in hub_port_reset, add a
delay to usb_reset_root_port.
3) Sync the musb reset sequence with the upstream kernel, clear all bits of
power except bits 4-7, and increase the time reset is asserted to 50 ms.
With these fixes an usb keyboard I have now always enumerates properly, where
as earlier it would only enumerare properly once every 5 tries.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
|