linux/drivers/usb/musb
Linus Walleij 82363cf2ee usb: musb: ux500: don't propagate the OF node
There is a regression in the upcoming v3.16-rc1, that is caused
by a problem that has been around for a while but now finally
hangs the system. The bootcrawl looks like this:

pinctrl-nomadik soc:pinctrl: pin GPIO256_AF28 already
requested by a03e0000.usb_per5; cannot claim for musb-hdrc.0.auto
pinctrl-nomadik soc:pinctrl: pin-256 (musb-hdrc.0.auto) status -22
pinctrl-nomadik soc:pinctrl: could not request pin 256
(GPIO256_AF28) from group usb_a_1  on device pinctrl-nomadik
musb-hdrc musb-hdrc.0.auto: Error applying setting, reverse
things back
HS USB OTG: no transceiver configured
musb-hdrc musb-hdrc.0.auto: musb_init_controller failed
with status -517
platform musb-hdrc.0.auto: Driver musb-hdrc requests
probe deferral
(...)

The ux500 MUSB driver propagates the OF node to the dynamically
created musb-hdrc device, which is incorrect as it makes the OF
core believe there are two devices spun from the very same
DT node, which confuses other parts of the device core, notably
the pin control subsystem, which will try to apply all the pin
control settings also to the HDRC device as it gets
instantiated. (The OMAP2430 for example, does not set the
of_node member.)

Cc: <stable@vger.kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-06-19 10:06:47 -05:00
..
am35x.c usb: phy: generic: allow multiples calls to usb_phy_generic_register() 2014-04-21 14:07:25 -05:00
blackfin.c usb: phy: generic: allow multiples calls to usb_phy_generic_register() 2014-04-21 14:07:25 -05:00
blackfin.h
cppi_dma.c usb: musb: dma: merge ->start/stop into create/destroy 2013-07-29 13:53:18 +03:00
cppi_dma.h
da8xx.c usb: phy: generic: allow multiples calls to usb_phy_generic_register() 2014-04-21 14:07:25 -05:00
davinci.c usb: musb: move usb_phy_generic_{un,}register calls to probe()/remove() 2014-04-21 14:07:25 -05:00
davinci.h
jz4740.c usb: musb: add support for JZ4740 usb device controller 2013-12-20 09:53:24 -06:00
Kconfig usb: musb: omap2plus bus glue needs USB host support 2014-05-14 09:23:32 -05:00
Makefile usb: musb: add support for JZ4740 usb device controller 2013-12-20 09:53:24 -06:00
musb_am335x.c usb: delete non-required instances of include <linux/init.h> 2014-01-08 15:01:39 -08:00
musb_core.c usb: musb: add a work_struct to recover from babble errors 2014-04-21 14:07:28 -05:00
musb_core.h usb: musb: tusb6010: Add tusb_revision to struct musb to store the revision. 2014-05-16 12:14:55 -05:00
musb_cppi41.c usb: musb: musb_cppi41: Dont reprogram DMA if tear down is initiated 2014-03-05 14:40:05 -06:00
musb_debug.h
musb_debugfs.c
musb_dma.h usb: musb dma: add cppi41 dma driver 2013-08-09 17:40:16 +03:00
musb_dsps.c usb: patches for v3.16 merge window 2014-05-23 11:28:21 +09:00
musb_gadget_ep0.c usb: musb: gadget: read ep0 fifo only if rxcount is non zero 2013-04-02 11:42:50 +03:00
musb_gadget.c usb: musb: fix setting JZ4740 gadget periphal mode on reset 2013-12-20 09:53:59 -06:00
musb_gadget.h usb: musb: add Kconfig options for HOST, GAGDET or DUAL_ROLE modes 2013-05-28 19:22:23 +03:00
musb_host.c usb: patches for v3.15 2014-03-07 16:47:36 -08:00
musb_host.h usb: musb: fix prototype for musb_port_reset 2013-12-20 15:05:43 -06:00
musb_io.h
musb_regs.h
musb_virthub.c usb: musb: correct use of schedule_delayed_work() 2014-02-20 09:17:24 -06:00
musbhsdma.c usb: musb: dma: merge ->start/stop into create/destroy 2013-07-29 13:53:18 +03:00
musbhsdma.h
omap2430.c usb: musb: omap2430: make sure clocks are enabled when running mailbox 2014-04-15 12:08:02 -05:00
omap2430.h
tusb6010_omap.c usb: musb: tusb6010: Use musb->tusb_revision instead of tusb_get_revision call. 2014-05-16 12:16:31 -05:00
tusb6010.c usb: musb: tusb6010: Use musb->tusb_revision instead of tusb_get_revision call. 2014-05-16 12:16:31 -05:00
tusb6010.h usb: musb: tusb6010: Use musb->tusb_revision instead of tusb_get_revision call. 2014-05-16 12:16:31 -05:00
ux500_dma.c usb: musb: ux500_dma: fix potential NULL dereference error 2013-12-17 13:17:42 -06:00
ux500.c usb: musb: ux500: don't propagate the OF node 2014-06-19 10:06:47 -05:00