kernel.git/drivers/usb/dwc3/core.c, branch linux-4.3.y

usb: dwc3: Add dis_enblslpm_quirk

2015-12-09T19:34:37Z

commit ec791d149bca4511e7d3a6a92bb3b030c5a443f9 upstream. Add a quirk to clear the GUSB2PHYCFG.ENBLSLPM bit, which controls whether the PHY receives the suspend signal from the controller. Signed-off-by: John Youn Signed-off-by: Felipe Balbi Signed-off-by: Greg Kroah-Hartman

usb: dwc3: Support Synopsys USB 3.1 IP

2015-12-09T19:34:36Z

commit 690fb3718a70c66004342f6f5e2e8a5f95b977db upstream. This patch allows the dwc3 driver to run on the new Synopsys USB 3.1 IP core, albeit in USB 3.0 mode only. The Synopsys USB 3.1 IP (DWC_usb31) retains mostly the same register interface and programming model as the existing USB 3.0 controller IP (DWC_usb3). However the GSNPSID and version numbers are different. Add checking for the new ID to pass driver probe. Also, since the DWC_usb31 version number is lower in value than the full GSNPSID of the DWC_usb3 IP, we set the high bit to identify DWC_usb31 and to ensure the values are higher. Finally, add a documentation note about the revision numbering scheme. Any future revision checks (for STARS, workarounds, and new features) should take into consideration how it applies to both the 3.1/3.0 IP. Signed-off-by: John Youn Signed-off-by: Felipe Balbi Signed-off-by: Greg Kroah-Hartman

usb: dwc3: core: remove unnecessary dev_warn()

2015-07-29T14:59:19Z

When a SoC supports both PHY interfaces but doesn't define HSPHY in DT/pdata, we will get an unnecessary dev_warn() which can mislead users into thinking that they're missing something. Instead, let's just silently rely on a correct default. If the HW default is wrong, then HSPHY is required and USB won't work, this will be motivation enough for engineers to patch their way into a working setup. Reported-by: Murali Karicheri Signed-off-by: Felipe Balbi

usb: dwc3: core: avoid NULL pointer dereference

2015-07-06T17:34:08Z

commit 3e10a2ce98d1 ("usb: dwc3: add hsphy_interface property") introduced a possible NULL pointer dereference because dwc->hsphy_interface can be NULL. In order to fix it, all we have to do is guard strncmp() against a NULL argument. Fixes: 3e10a2ce98d1 ("usb: dwc3: add hsphy_interface property") Tested-by: Murali Karicheri Signed-off-by: Felipe Balbi

usb: dwc3: add ULPI interface support

2015-05-13T17:06:52Z

Registers DWC3's ULPI interface with the ULPI bus when it's available. Signed-off-by: Heikki Krogerus Acked-by: David Cohen Signed-off-by: Felipe Balbi

usb: dwc3: add hsphy_interface property

2015-05-13T17:06:42Z

Platforms that have configured DWC_USB3_HSPHY_INTERFACE with value 3, i.e. UTMI+ and ULPI, need to inform the driver of the actual HSPHY interface type with the property. "utmi" if the interface is UTMI+ or "ulpi" if the interface is ULPI. Signed-off-by: Heikki Krogerus Acked-by: David Cohen Signed-off-by: Felipe Balbi

usb: dwc3: setup phys earlier

2015-05-13T17:06:09Z

This allows dwc3_phy_setup() to be more useful later. There is nothing preventing the PHY configuration registers from being programmed early. They do not loose their context in soft reset. There are however other PHY related operations that should be executed before the driver request handles to the PHYs, such as registering DWC3's ULPI interface, which can now be done in dwc3_phy_setup(). Also, if there ever was need for the two 100ms delays in dwc3_phy_setup() there isn't anymore. The PHYs are now reset after the PHY interfaces are setup. Signed-off-by: Heikki Krogerus Acked-by: David Cohen Signed-off-by: Felipe Balbi

usb: dwc3: soft reset to it's own function

2015-05-13T17:06:05Z

So it can be called from other places later. Signed-off-by: Heikki Krogerus Acked-by: David Cohen Signed-off-by: Felipe Balbi

usb: dwc3: cache hwparams earlier

2015-05-13T17:06:00Z

So they are available when ULPI interface support is added. Signed-off-by: Heikki Krogerus Acked-by: David Cohen Signed-off-by: Felipe Balbi

usb: dwc3: store driver data earlier

2015-05-13T17:05:56Z

We need to store it before phys are handled, so we can later use it in ULPI interface support code. Signed-off-by: Heikki Krogerus Acked-by: David Cohen Signed-off-by: Felipe Balbi