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authorStephen Warren <swarren@nvidia.com>2012-04-18 15:32:46 -0600
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-04-19 19:06:23 -0700
commit6d5f89c7b4fa5f8d6dc757982402c032183ffd8d (patch)
treec2a82aa3eef6370bdd8ccd7f58887b237798683c /drivers/usb/host/bcma-hcd.c
parentcae18768acf684b505c928e5cf7ea741fac45b83 (diff)
USB: EHCI: remove PORT_RWC_BITS when clearing USB_PORT_FEAT_ENABLE
In the ClearPortFeature/USB_PORT_FEAT_ENABLE case, ehci_hub_control() would read from status_reg, clear PORT_PE, and write the result back to status_reg. This would clear any bits in PORT_RWC_BITS that were set in the registers. Fix this by masking these bits off before the write. Since this masking is common across all ClearPortFeature cases, move it into a single early location to avoid duplicating it. Remove the same bugfix from ehci-tegra.c's tegra_ehci_hub_control(), now that this case is correctly handled by the core. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/bcma-hcd.c')
0 files changed, 0 insertions, 0 deletions