linux-toradex.git/drivers/usb/dwc2/core.c, branch v4.4.73 Linux kernel for Apalis and Colibri modules usb: dwc2: fix duplicate argument warning 2015-10-13T18:17:42+00:00 Mian Yousaf Kaukab yousaf.kaukab@intel.com 2015-10-12T09:23:27+00:00 44e4a60dacf8a96f28b5e021b54ba9eeb793ca2e Fix a duplicate argument warning reported by 0-DAY kernel test infrastructure in the following patch: 77dbf71 usb: dwc2: host: add disconnect interrupt to host only interrupts Acked-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com> Signed-off-by: Felipe Balbi <balbi@ti.com> 
Fix a duplicate argument warning reported by 0-DAY kernel test
infrastructure in the following patch:
77dbf71 usb: dwc2: host: add disconnect interrupt to host only interrupts

Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
usb: dwc2: host: clear pending interrupts prior hibernation 2015-10-01T17:40:17+00:00 Gregory Herrero gregory.herrero@intel.com 2015-09-22T13:16:49+00:00 cad73da26cb9392db3449ab35e506ea13efd1888 If an interrupt rises during hibernation process, dwc2 will assert interrupt line to interrupt controller. If interrupt is level sensitive, interrupt handler will be called in a loop because dwc2 will not be able to clear it while controller is hibernated. Thus, clear all controller interrupts before hibernation entry. Signed-off-by: Gregory Herrero <gregory.herrero@intel.com> Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com> Tested-by: Robert Baldyga <r.baldyga@samsung.com> Tested-by: Dinh Nguyen <dinguyen@opensource.altera.com> Tested-by: John Youn <johnyoun@synopsys.com> Acked-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <balbi@ti.com> 
If an interrupt rises during hibernation process, dwc2 will assert
interrupt line to interrupt controller. If interrupt is level
sensitive, interrupt handler will be called in a loop because dwc2
will not be able to clear it while controller is hibernated.
Thus, clear all controller interrupts before hibernation entry.

Signed-off-by: Gregory Herrero <gregory.herrero@intel.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Tested-by: Robert Baldyga <r.baldyga@samsung.com>
Tested-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Tested-by: John Youn <johnyoun@synopsys.com>
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
usb: dwc2: host: add disconnect interrupt to host only interrupts 2015-10-01T17:40:17+00:00 Mian Yousaf Kaukab yousaf.kaukab@intel.com 2015-09-22T13:16:47+00:00 77dbf7138d59994d50b7875deb24992f51b811b5 GINTSTS.DisconnInt is host only interrupt and should be disable after dwc2_disable_host_interrupts is called. Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com> Tested-by: Robert Baldyga <r.baldyga@samsung.com> Tested-by: Dinh Nguyen <dinguyen@opensource.altera.com> Tested-by: John Youn <johnyoun@synopsys.com> Acked-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <balbi@ti.com> 
GINTSTS.DisconnInt is host only interrupt and should be disable after
dwc2_disable_host_interrupts is called.

Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Tested-by: Robert Baldyga <r.baldyga@samsung.com>
Tested-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Tested-by: John Youn <johnyoun@synopsys.com>
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
usb: dwc2: host: reset frame number after suspend 2015-10-01T17:40:16+00:00 Gregory Herrero gregory.herrero@intel.com 2015-09-22T13:16:45+00:00 08c4ffc24087d1949948002abdbac0d1e71ade5d Frame number is reset in hardware after exiting hibernation. Thus, reset frame_number and ensure qh are queued with correct sched_frame. Otherwise, qh->sched_frame may be too high compared to current frame number (which is 0). This can delay addition of qh in the list of transfers until frame number reaches qh->sched_frame. Signed-off-by: Gregory Herrero <gregory.herrero@intel.com> Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com> Tested-by: Robert Baldyga <r.baldyga@samsung.com> Tested-by: Dinh Nguyen <dinguyen@opensource.altera.com> Tested-by: John Youn <johnyoun@synopsys.com> Acked-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <balbi@ti.com> 
Frame number is reset in hardware after exiting hibernation.
Thus, reset frame_number and ensure qh are queued with correct
sched_frame.

Otherwise, qh->sched_frame may be too high compared to
current frame number (which is 0). This can delay addition of qh in
the list of transfers until frame number reaches qh->sched_frame.

Signed-off-by: Gregory Herrero <gregory.herrero@intel.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Tested-by: Robert Baldyga <r.baldyga@samsung.com>
Tested-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Tested-by: John Youn <johnyoun@synopsys.com>
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
usb: dwc2: host: don't clear hprt0 status bits when exiting hibernation 2015-10-01T17:40:14+00:00 Gregory Herrero gregory.herrero@intel.com 2015-09-22T13:16:37+00:00 cc047ce4be6188d3bd3997b44ec724ce390fbdcb When entering hibernation hprt0 must be read using dwc2_read_hprt0(). Otherwise, any set hprt0 status bits will be cleared when restoring hprt0 on exit from hibernation. Signed-off-by: Gregory Herrero <gregory.herrero@intel.com> Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com> Tested-by: Robert Baldyga <r.baldyga@samsung.com> Tested-by: Dinh Nguyen <dinguyen@opensource.altera.com> Tested-by: John Youn <johnyoun@synopsys.com> Acked-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <balbi@ti.com> 
When entering hibernation hprt0 must be read using dwc2_read_hprt0().
Otherwise, any set hprt0 status bits will be cleared when restoring
hprt0 on exit from hibernation.

Signed-off-by: Gregory Herrero <gregory.herrero@intel.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Tested-by: Robert Baldyga <r.baldyga@samsung.com>
Tested-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Tested-by: John Youn <johnyoun@synopsys.com>
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
usb: dwc2: Use platform endianness when accessing registers 2015-09-27T15:54:31+00:00 Antti Seppälä a.seppala@gmail.com 2015-08-20T18:41:07+00:00 95c8bc3609440af5e4a4f760b8680caea7424396 This patch switches calls to readl/writel to their dwc2_readl/dwc2_writel equivalents which preserve platform endianness. This patch is necessary to access dwc2 registers correctly on big-endian systems such as the mips based SoCs made by Lantiq. Then dwc2 can be used to replace ifx-hcd driver for Lantiq platforms found e.g. in OpenWrt. The patch was autogenerated with the following commands: $EDITOR core.h sed -i "s/\<readl\>/dwc2_readl/g" *.c hcd.h hw.h sed -i "s/\<writel\>/dwc2_writel/g" *.c hcd.h hw.h Some files were then hand-edited to fix checkpatch.pl warnings about too long lines. Signed-off-by: Antti Seppälä <a.seppala@gmail.com> Signed-off-by: Vincent Pelletier <plr.vincent@gmail.com> Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <balbi@ti.com> 
This patch switches calls to readl/writel to their
dwc2_readl/dwc2_writel equivalents which preserve platform endianness.

This patch is necessary to access dwc2 registers correctly on big-endian
systems such as the mips based SoCs made by Lantiq. Then dwc2 can be
used to replace ifx-hcd driver for Lantiq platforms found e.g. in
OpenWrt.

The patch was autogenerated with the following commands:
$EDITOR core.h
sed -i "s/\<readl\>/dwc2_readl/g" *.c hcd.h hw.h
sed -i "s/\<writel\>/dwc2_writel/g" *.c hcd.h hw.h

Some files were then hand-edited to fix checkpatch.pl warnings about
too long lines.

Signed-off-by: Antti Seppälä <a.seppala@gmail.com>
Signed-off-by: Vincent Pelletier <plr.vincent@gmail.com>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
treewide: Fix typo in printk 2015-08-07T11:58:05+00:00 Masanari Iida standby24x7@gmail.com 2015-05-20T14:54:02+00:00 971bd8fa369a37b047c26e9a47d4c1f5d2dce4d3 This patch fix spelling typo inv various part of sources. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.com> 
This patch fix spelling typo inv various part of sources.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
usb: dwc2: embed storage for reg backup in struct dwc2_hsotg 2015-07-06T17:34:08+00:00 Mian Yousaf Kaukab yousaf.kaukab@intel.com 2015-06-29T09:05:30+00:00 cc1e204cb092da8495fe2c24bdc4543c259d6b34 Register backup function can be called from atomic context. Instead of using atomic memory pool, embed backup storage space in struct dwc2_hsotg. Also add a valid flag in each struct as NULL pointer can't be used as the content validity check any more. Acked-by: John Youn <johnyoun@synopsys.com> Tested-by: Heiko Stuebner <heiko@sntech.de> Tested-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com> Signed-off-by: Felipe Balbi <balbi@ti.com> 
Register backup function can be called from atomic context. Instead
of using atomic memory pool, embed backup storage space in
struct dwc2_hsotg.

Also add a valid flag in each struct as NULL pointer can't be used as
the content validity check any more.

Acked-by: John Youn <johnyoun@synopsys.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
usb: dwc2: add hibernation core parameter 2015-04-29T20:20:17+00:00 Gregory Herrero gregory.herrero@intel.com 2015-04-29T20:09:19+00:00 285046aa11ad85a4de24891f5458d45f50d1bcc5 dwc2 may not be able to exit from hibernation if the hardware does not provide a way to detect resume signalling in this state. Thus, add the possibility to disable hibernation feature. Acked-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Gregory Herrero <gregory.herrero@intel.com> Signed-off-by: Felipe Balbi <balbi@ti.com> 
dwc2 may not be able to exit from hibernation if the hardware
does not provide a way to detect resume signalling in this state.
Thus, add the possibility to disable hibernation feature.

Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Gregory Herrero <gregory.herrero@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
usb: dwc2: remove dwc2_platform.ko 2015-04-29T20:20:11+00:00 Mian Yousaf Kaukab yousaf.kaukab@intel.com 2015-04-29T20:09:18+00:00 2d1165a4b95e25aed83fed737d53ab0c87b831e6 As dwc2 pci module is now exporting dwc2 platform device, include platform.o in dwc2-y and remove USB_DWC2_PLATFORM configuration option. Driver will be built as two modules, dwc2.ko and dwc2_pci.ko. dwc2.ko is the new platform driver. Remove all EXPORT_SYMBOL_GPL as they are not needed any more. Acked-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com> Signed-off-by: Felipe Balbi <balbi@ti.com> 
As dwc2 pci module is now exporting dwc2 platform device, include
platform.o in dwc2-y and remove USB_DWC2_PLATFORM configuration
option. Driver will be built as two modules, dwc2.ko and dwc2_pci.ko.
dwc2.ko is the new platform driver.

Remove all EXPORT_SYMBOL_GPL as they are not needed any more.

Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>