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2017-08-15usb: bdc: fix "xsf for ep not enabled" errrorAl Cooper1-3/+4
This patch essentially clears the port status change bits at the correct times. It is necessary because the driver was not handling the change bits correctly for events during device connection/disconnection and bus enumeration. So, one of them (PCC) was left stuck sometimes causing the "xsf for ep not enabled" error we get on first connection. This was found by the Android team. This was debugged and fixed by Sasi Kumar. Signed-off-by: Al Cooper <alcooperx@gmail.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-08-15usb: bdc: Add support for suspend/resumeAl Cooper2-0/+37
Based on a previous commit by Danesh Petigara <dpetigara@broadcom.com> that added resume to solve the following problem: "The BDC driver will fail after resuming from S3 suspend and this will cause any upper layer gadget driver to fail." This commit also adds support for suspend and manages the clock during suspend/resume. Signed-off-by: Al Cooper <alcooperx@gmail.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-08-15usb: bdc: hook a quick Device Tree compatible stringFlorian Fainelli2-2/+10
Allows Device Tree probing Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Al Cooper <alcooperx@gmail.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-08-15usb: bdc: Small code cleanupAl Cooper1-7/+8
Signed-off-by: Al Cooper <alcooperx@gmail.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2017-08-15usb: bdc: Add clock enable for new chips with a separate BDC clockAl Cooper1-0/+15
Newer SoC's have added a BDC clock to the Device Tree, so get and enable it. Signed-off-by: Al Cooper <alcooperx@gmail.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>