kernel.git/drivers/usb/dwc2/hcd.c, branch linux-4.12.y

usb: dwc2: Add support for STM32F429/439/469 USB OTG HS/FS in FS mode (internal PHY)

2017-04-11T07:58:17Z

This patch introduces a new parameter to activate USB OTG HS/FS core embedded phy transceiver. The STM32F4x9 SoC uses the GGPIO register to enable the transceiver. Also add the dwc2_set_params function for stm32f4 otg fs. Acked-by: John Youn Signed-off-by: Bruno Herrera Signed-off-by: Felipe Balbi

usb: dwc2: Make sure we disconnect the gadget state

2017-04-11T07:58:16Z

I had seen some odd behavior with HiKey's usb-gadget interface that I finally seemed to have chased down. Basically every other time I plugged in the OTG port, the gadget interface would properly initialize. The other times, I'd get a big WARN_ON in dwc2_hsotg_init_fifo() about the fifo_map not being clear. Ends up if we don't disconnect the gadget state, the fifo-map doesn't get cleared properly, which causes WARN_ON messages and also results in the device not properly being setup as a gadget every other time the OTG port is connected. So this patch adds a call to dwc2_hsotg_disconnect() in the reset path so the state is properly cleared. With it, the gadget interface initializes properly on every plug in. Cc: Wei Xu Cc: Guodong Xu Cc: Amit Pundir Cc: Rob Herring Cc: John Youn Cc: Douglas Anderson Cc: Chen Yu Cc: Felipe Balbi Cc: Greg Kroah-Hartman Cc: linux-usb@vger.kernel.org Acked-by: John Youn Signed-off-by: John Stultz Signed-off-by: Felipe Balbi

Merge tag 'usb-for-v4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

2017-01-26T14:36:28Z

Felipe writes: USB: changes for v4.11 Here's the big pull request for the Gadget API. Again the majority of changes sit in dwc2 driver. Most important changes contain a workaround for GOTGCTL being wrong, a sleep-inside-spinlock fix and the big series of cleanups on dwc2. One important thing on dwc3 is that we don't anymore need gadget drivers to cope with unaligned OUT transfers for us. We have support for appending one extra chained TRB to align transfer ourselves. Apart from these, the usual set of typos, non-critical fixes, etc.

usb: dwc2: eliminate irq parameter from dwc2_hcd_init

2017-01-26T08:52:01Z

The irq is available in hsotg already, so there's no need to pass it as separate function parameter. Acked-by: John Youn Signed-off-by: Heiner Kallweit Signed-off-by: Felipe Balbi

usb: dwc2: fix "iomem 0x00000000" message

2017-01-26T08:51:35Z

Set the iomem parameters in the usb_hcd to fix this misleading message during driver load: dwc2 c9100000.usb: irq 22, io mem 0x00000000 Acked-by: John Youn Signed-off-by: Heiner Kallweit Signed-off-by: Felipe Balbi

usb: dwc2: host: Correct snpsid checking for GDFIFOCFG

2017-01-24T14:19:10Z

GDFIFOCFG is available from IP version 2.91a. Fix the code to reflect this. Signed-off-by: Sevak Arakelyan Signed-off-by: John Youn Signed-off-by: Felipe Balbi

usb: dwc2: Add a quirk to allow speed negotiation for Hisilicon Hi6220

2017-01-24T14:19:10Z

The Hi6220's usb controller is limited in that it does not support "Split Transactions", so it does not support communicating with low-speed and full-speed devices behind a high-speed hub. Thus it requires a quirk so that we can manually drop the usb speed when low/full-speed are attached, and bump back to high speed when they are removed. Cc: Wei Xu Cc: Guodong Xu Cc: Amit Pundir Cc: Rob Herring Cc: John Youn Cc: Douglas Anderson Cc: Chen Yu Cc: Vardan Mikayelyan Cc: Kishon Vijay Abraham I Cc: Felipe Balbi Cc: Greg Kroah-Hartman Cc: linux-usb@vger.kernel.org Signed-off-by: Chen Yu [jstultz: Reworked to simplify the patch, and made commit log to be more specific about the issue] Signed-off-by: John Stultz Signed-off-by: John Youn Signed-off-by: Felipe Balbi

usb: dwc2: Force port resume on switching to device mode

2017-01-24T14:19:09Z

We've seen failures when switching between host and gadget mode, which was diagnosed as being caused due to the bus being auto-suspended when we switched. So this patch forces a port resume when switching to device mode if the bus is suspended. Cc: Wei Xu Cc: Guodong Xu Cc: Amit Pundir Cc: Rob Herring Cc: John Youn Cc: Douglas Anderson Cc: Chen Yu Cc: Vardan Mikayelyan Cc: Kishon Vijay Abraham I Cc: Felipe Balbi Cc: Greg Kroah-Hartman Cc: linux-usb@vger.kernel.org Signed-off-by: Chen Yu Signed-off-by: John Stultz Signed-off-by: John Youn Signed-off-by: Felipe Balbi

usb: dwc2: Workaround case where GOTGCTL state is wrong

2017-01-24T14:19:09Z

When removing a USB-A to USB-otg adapter cable, we get a change status irq, and then in dwc2_conn_id_status_change, we erroneously see the GOTGCTL_CONID_B flag set. This causes us to get stuck in the "while (!dwc2_is_device_mode(hsotg))" loop, spitting out "Waiting for Peripheral Mode, Mode=Host" warnings until it fails out many seconds later. This patch works around the issue by re-reading the GOTGCTL state to check if the GOTGCTL_CONID_B is still set and if not restarting the change status logic. Cc: Wei Xu Cc: Guodong Xu Cc: Amit Pundir Cc: Rob Herring Cc: John Youn Cc: Douglas Anderson Cc: Chen Yu Cc: Vardan Mikayelyan Cc: Kishon Vijay Abraham I Cc: Felipe Balbi Cc: Greg Kroah-Hartman Cc: linux-usb@vger.kernel.org Reviewed-by: Vardan Mikayelyan Signed-off-by: John Stultz Signed-off-by: John Youn Signed-off-by: Felipe Balbi

usb: dwc2: Fix usage of bool params

2017-01-24T14:19:07Z

Check these parameters only for true or false. There is no need to check for greater or less than 0. Signed-off-by: John Youn Signed-off-by: Felipe Balbi