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| author | Hans de Goede <hdegoede@redhat.com> | 2016-05-31 10:05:08 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-06-01 14:58:59 -0700 |
| commit | a60d541a2d402c8645d5bb2ec8dabe474b66e018 (patch) | |
| tree | d0abaf2d3f99adcdf6ee60c58b4c7d54330bcece /Documentation/devicetree | |
| parent | 37f30d887a41775066b78f8c0fa9a4929638db07 (diff) | |
usb: musb: sunxi: Set state to A_WAIT_VRISE when enabling Vbus
When the board is powering attached usb devices via the otg port
sometimes / on some devices it takes slightly too long for the Vbus
detection code in phy-sun4i-usb.c to signal that Vbus is high after
enabling Vbus and the musb hardware signals a MUSB_INTR_VBUSERROR
interrupt.
This commit sets the otg state to A_WAIT_VRISE upon enabling Vbus
making musb_stage0_irq() ignore the first VBUSERR_RETRY_COUNT
VBUSERROR interrupts, fixing connection issues in these cases.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
[b-liu@ti.com: revise subject prefix]
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/devicetree')
0 files changed, 0 insertions, 0 deletions