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Code Issues Releases Packages Activity
linux/drivers/usb/musb
History
Jonathan Liu 6f4a36f0ec usb: musb: Check for host-mode using is_host_active() on reset interrupt 
commit 445ef61543 upstream.

The sunxi musb has a bug where sometimes it will generate a babble
error on device disconnect instead of a disconnect IRQ. When this
happens the musb controller switches from host mode to device mode
(it clears MUSB_DEVCTL_HM/MUSB_DEVCTL_SESSION and sets
MUSB_DEVCTL_BDEVICE) and gets stuck in this state.

The babble error is misdetected as a bus reset because MUSB_DEVCTL_HM
was cleared.

To fix this, use is_host_active() rather than (devctl & MUSB_DEVCTL_HM)
to detect babble error so that sunxi musb babble recovery can handle it
by restoring the mode. This information is provided by the driver logic
and does not rely on register contents.

Signed-off-by: Jonathan Liu <net147@gmail.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2017-10-27 10:38:06 +02:00
..
am35x.c usb: musb: am35x: fix error return code in am35x_probe() 2016-09-13 17:20:02 +02:00
blackfin.c usb: musb: blackfin: add bfin_fifo_offset in bfin_ops 2017-01-12 11:39:18 +01:00
blackfin.h usb: musb: drop a gigantic amount of ifdeferry 2011-07-01 14:31:10 -07:00
cppi_dma.c usb: musb: cleanup cppi_dma header 2016-07-17 08:23:57 +09:00
cppi_dma.h usb: musb: cppi41: move struct cppi41_dma_channel to header 2016-07-17 08:23:57 +09:00
da8xx.c usb: musb: da8xx: Remove CPPI 3.0 quirk and methods 2017-03-12 06:41:48 +01:00
davinci.c usb: musb: Set up function pointers for DMA 2015-05-07 13:35:51 -05:00
davinci.h usb: musb: davinci: Fix build breakage 2012-06-04 18:29:42 +03:00
jz4740.c usb: musb: jz4740: fix error check of usb_get_phy() 2016-04-26 14:50:02 -07:00
Kconfig Merge 4.8-rc7 into usb-next 2016-09-19 09:12:41 +02:00
Makefile usb: musb: add tracepoints support for debugging 2016-07-17 08:23:57 +09:00
musb_am335x.c usb: musb: Fix panic upon musb_am335x module removal 2014-06-27 10:53:06 -05:00
musb_core.c usb: musb: Check for host-mode using is_host_active() on reset interrupt 2017-10-27 10:38:06 +02:00
musb_core.h usb: musb: Fix host mode error -71 regression 2017-02-09 08:08:30 +01:00
musb_cppi41.c usb: musb: cppi41: don't check early-TX-interrupt for Isoch transfer 2017-03-30 09:41:24 +02:00
musb_debug.h usb: musb: add tracepoints support for debugging 2016-07-17 08:23:57 +09:00
musb_debugfs.c usb: musb: fix runtime PM in debugfs 2017-01-19 20:18:01 +01:00
musb_dma.h usb: musb: Set up function pointers for DMA 2015-05-07 13:35:51 -05:00
musb_dsps.c usb: musb: dsps: keep VBUS on for host-only mode 2017-06-24 07:11:13 +02:00
musb_gadget.c usb: musb: Fix PM for hub disconnect 2016-11-17 16:25:39 +01:00
musb_gadget.h usb: musb: add Kconfig options for HOST, GAGDET or DUAL_ROLE modes 2013-05-28 19:22:23 +03:00
musb_gadget_ep0.c usb: musb: switch dev_dbg to tracepoints 2016-07-17 08:23:57 +09:00
musb_host.c usb: musb: fix tx fifo flush handling again 2017-08-16 13:43:19 -07:00
musb_host.h usb: musb: fix prototype for musb_port_reset 2013-12-20 15:05:43 -06:00
musb_io.h usb: musb: Make busctl_offset an io-op rather then a define 2015-05-26 10:46:54 -05:00
musb_regs.h usb: musb: Make busctl_offset an io-op rather then a define 2015-05-26 10:46:54 -05:00
musb_trace.c usb: musb: add tracepoints support for debugging 2016-07-17 08:23:57 +09:00
musb_trace.h usb: musb: cppi41: add dma channel tracepoints 2016-07-17 08:23:57 +09:00
musb_virthub.c musb: Export musb_root_disconnect for use in modules 2016-09-22 12:00:21 +02:00
musbhsdma.c usb: musb: switch dev_dbg to tracepoints 2016-07-17 08:23:57 +09:00
musbhsdma.h usb: musb: Fix trying to free already-free IRQ 4 2017-01-12 11:39:18 +01:00
omap2430.c usb: musb: Add missing pm_runtime_disable and drop 2430 PM timeout 2016-11-17 16:25:39 +01:00
omap2430.h usb: start using the control module driver 2013-01-25 12:27:24 +02:00
sunxi.c usb: musb: sunxi: Explicitly release USB PHY on exit 2017-10-27 10:38:06 +02:00
tusb6010.c usb: musb: Fix PM for hub disconnect 2016-11-17 16:25:39 +01:00
tusb6010.h usb: musb: Fix up DMA related macros 2015-05-07 13:35:46 -05:00
tusb6010_omap.c usb: musb: tusb6010_omap: Do not reset the other direction's packet size 2017-05-25 15:44:40 +02:00
ux500.c usb: musb: ux500: Fix NULL pointer dereference at system PM 2016-02-03 20:03:40 +02:00
ux500_dma.c usb: musb/ux500: remove duplicate check for dma_is_compatible 2016-03-04 15:14:30 +02:00