linux.git/drivers/usb/dwc2/platform.c, branch v4.2 Linux kernel source tree 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: set parameter values in probe function 2015-04-29T20:19:02+00:00 Mian Yousaf Kaukab yousaf.kaukab@intel.com 2015-04-29T20:09:05+00:00 ecb176c63ac49ddcea83b0171ead1372bb78c165 So the parameters can be used in both host and gadget modes. Also consolidate param functions in the core.h 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> 
So the parameters can be used in both host and gadget modes.
Also consolidate param functions in the core.h

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: add external_id_pin_ctl core parameter 2015-04-29T20:18:55+00:00 Gregory Herrero gregory.herrero@intel.com 2015-04-29T20:09:04+00:00 a6d249d8373343749f9ae55f5581f3b21e178471 This is required due to an Intel specific hardware issue. Where id- pin setup causes glitches on the interrupt line when CONIDSTSCHG interrupt is enabled. Specify external_id_pin_ctl when an external driver (for example phy) can handle id change, so that CONIDSTSCHG interrupt can be disabled from the controller. Acked-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Gregory Herrero <gregory.herrero@intel.com> Signed-off-by: Felipe Balbi <balbi@ti.com> 
This is required due to an Intel specific hardware issue. Where id-
pin setup causes glitches on the interrupt line when CONIDSTSCHG
interrupt is enabled.

Specify external_id_pin_ctl when an external driver (for example phy)
can handle id change, so that CONIDSTSCHG interrupt can be disabled
from the controller.

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: move debugfs code to a separate file 2015-04-29T20:18:25+00:00 Mian Yousaf Kaukab yousaf.kaukab@intel.com 2015-04-29T20:08:59+00:00 f91eea447ac32ddc24eaf1cafeb3830b44b6ceeb Prepare to add more debug code. Moreover, don't save dentry * for each file in struct dwc2_hsotg as clean up is done with debugfs_remove_recursive(). s3c_hsotg_delete_debug() is removed altogether for the same reason. 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> 
Prepare to add more debug code. Moreover, don't save dentry * for
each file in struct dwc2_hsotg as clean up is done with
debugfs_remove_recursive(). s3c_hsotg_delete_debug() is removed
altogether for the same reason.

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: rework initialization of host and gadget in dual-role mode 2015-03-12T17:18:49+00:00 Marek Szyprowski m.szyprowski@samsung.com 2015-03-10T12:41:10+00:00 e39af88f18dfe9a7938765c97ce9ed448915e6d5 If device is configured to work only in HOST or DEVICE mode, there is no point in initializing both subdrivers. This patch also fixes resource leakage if host subdriver fails to initialize. Acked-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com> 
If device is configured to work only in HOST or DEVICE mode, there is
no point in initializing both subdrivers. This patch also fixes
resource leakage if host subdriver fails to initialize.

Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
usb: dwc2: platform: add generic PHY framework support 2015-01-12T18:13:26+00:00 Yunzhi Li lyz@rock-chips.com 2014-12-08T09:46:26+00:00 135b3c4304dacd8bb01f1aa6fe4165126bee3812 Get PHY parameters from devicetree and power off usb PHY during system suspend. Acked-by: Paul Zimmerman <paulz@synopsys.com> Signed-off-by: Yunzhi Li <lyz@rock-chips.com> Signed-off-by: Felipe Balbi <balbi@ti.com> 
Get PHY parameters from devicetree and power off usb PHY during
system suspend.

Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Yunzhi Li <lyz@rock-chips.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
usb: dwc2: Fix build warning when CONFIG_PM_SLEEP=n 2014-11-25T14:47:04+00:00 Fabio Estevam fabio.estevam@freescale.com 2014-11-19T14:37:53+00:00 da9f3289c74f93b63c5ca741caa4e2d728ccafba Building with bcm2835_defconfig, which has CONFIG_PM_SLEEP=n causes the following build warning: drivers/usb/dwc2/platform.c:227:12: warning: 'dwc2_suspend' defined but not used [-Wunused-function] drivers/usb/dwc2/platform.c:237:12: warning: 'dwc2_resume' defined but not used [-Wunused-function] Annotate these functions with '__maybe_unused' to prevent the warnings. Reported-by: Olof's autobuilder <build@lixom.net> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Felipe Balbi <balbi@ti.com> 
Building with bcm2835_defconfig, which has CONFIG_PM_SLEEP=n causes the
following build warning:

drivers/usb/dwc2/platform.c:227:12: warning: 'dwc2_suspend' defined but not used [-Wunused-function]
drivers/usb/dwc2/platform.c:237:12: warning: 'dwc2_resume' defined but not used [-Wunused-function]

Annotate these functions with '__maybe_unused' to prevent the warnings.

Reported-by: Olof's autobuilder <build@lixom.net>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
usb: dwc2: gadget: add mutex to serialize init/deinit calls 2014-11-21T15:07:38+00:00 Marek Szyprowski m.szyprowski@samsung.com 2014-11-21T14:14:48+00:00 7ad8096edfe0529eabb3ad466184c8fbd6134e1a This patch adds mutex, which protects initialization and deinitialization procedures against suspend/resume methods. This mutex will be needed by the updated suspend/resume calls, which tracks gadget state. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Acked-by: Paul Zimmerman <paulz@synopsys.com> Signed-off-by: Felipe Balbi <balbi@ti.com> 
This patch adds mutex, which protects initialization and
deinitialization procedures against suspend/resume methods. This mutex
will be needed by the updated suspend/resume calls, which tracks gadget
state.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
usb: dwc2: move usb_disabled() call to host driver only 2014-11-14T21:00:03+00:00 Dinh Nguyen dinguyen@opensource.altera.com 2014-11-11T17:13:39+00:00 f5500ecc90a887d7e65274817733fbe477070559 Since platform.c will get built for both Host and Gadget, if we leave the usb_disabled() call in platform.c, it results in the following build error when (!USB && USB_GADGET) condition is met. ERROR: "usb_disabled" [drivers/usb/dwc2/dwc2_platform.ko] undefined! Since usb_disabled() is mostly used to disable USB host functionality, move the call the host portion for the DWC2 driver. Acked-by: Paul Zimmerman <paulz@synopsys.com> Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com> Signed-off-by: Felipe Balbi <balbi@ti.com> 
Since platform.c will get built for both Host and Gadget, if we leave the
usb_disabled() call in platform.c, it results in the following build error
when (!USB && USB_GADGET) condition is met.

ERROR: "usb_disabled" [drivers/usb/dwc2/dwc2_platform.ko] undefined!

Since usb_disabled() is mostly used to disable USB host functionality, move
the call the host portion for the DWC2 driver.

Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
usb: dwc2: Update common interrupt handler to call gadget interrupt handler 2014-11-14T20:59:48+00:00 Dinh Nguyen dinguyen@opensource.altera.com 2014-11-11T17:13:37+00:00 db8178c33dbe9aba5e2c5d323625f9e6da55d7e6 Make dwc2_handle_common_intr call the gadget interrupt function when operating in peripheral mode. Remove the spinlock functions in s3c_hsotg_irq as dwc2_handle_common_intr() already has the spinlocks. Move the registeration of the IRQ to common code for platform and PCI. Remove duplicate interrupt conditions that was in gadget, as those are handled by dwc2 common interrupt handler. Acked-by: Paul Zimmerman <paulz@synopsys.com> Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com> Signed-off-by: Felipe Balbi <balbi@ti.com> 
Make dwc2_handle_common_intr call the gadget interrupt function when operating
in peripheral mode. Remove the spinlock functions in s3c_hsotg_irq as
dwc2_handle_common_intr() already has the spinlocks.

Move the registeration of the IRQ to common code for platform and PCI.

Remove duplicate interrupt conditions that was in gadget, as those are handled
by dwc2 common interrupt handler.

Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>