kernel.git/drivers/usb/dwc2/core.h, 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: 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: gadget: Set TX FIFO depths to calculated defaults

2017-01-24T14:19:11Z

Remove legacy DWC2_G_P_LEGACY_TX_FIFO_SIZE array for TX FIFOs. Update dwc2_set_param_tx_fifo_sizes function to calculate and assign default average FIFO depth to each member of g_tx_fifo_size array. Total FIFO size, EP Info block's size, FIFO operation mode and device operation mode are taken into consideration during the calculation. Cc: Stefan Wahren Signed-off-by: Sevak Arakelyan Signed-off-by: John Youn 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: Avoid sleeping while holding hsotg->lock

2017-01-24T14:19:08Z

Basically when plugging in various cables in different orders, I'm occasionally seeing the following BUG splat: [ 86.215403] BUG: scheduling while atomic: kworker/u16:2/53/0x00000002 [ 86.219164] usb 1-1: USB disconnect, device number 9 [ 86.226845] Preemption disabled at:[ 86.230218] [] dwc2_conn_id_status_change+0x120/0x250 [ 86.236894] CPU: 0 PID: 53 Comm: kworker/u16:2 Tainted: G W 4.9.0-rc8-00051-gd5a7979-dirty #1702 [ 86.246836] Hardware name: HiKey Development Board (DT) [ 86.252100] Workqueue: dwc2 dwc2_conn_id_status_change [ 86.257279] Call trace: [ 86.259771] [] dump_backtrace+0x0/0x1a0 [ 86.265210] [] show_stack+0x14/0x20 [ 86.270308] [] dump_stack+0x90/0xb0 [ 86.275401] [] __schedule_bug+0x6c/0xb8 [ 86.280841] [] __schedule+0x4f8/0x5b0 [ 86.286099] [] schedule+0x38/0xa0 [ 86.291017] [] schedule_hrtimeout_range_clock+0x8c/0xf0 [ 86.297846] [] schedule_hrtimeout_range+0x10/0x18 [ 86.304150] [] usleep_range+0x50/0x58 [ 86.309418] [] dwc2_wait_for_mode.isra.4+0x54/0xd0 [ 86.315815] [] dwc2_core_reset+0xe0/0x168 [ 86.321431] [] dwc2_hsotg_core_init_disconnected+0x2c/0x310 [ 86.328602] [] dwc2_conn_id_status_change+0x130/0x250 [ 86.335254] [] process_one_work+0x118/0x370 [ 86.341035] [] worker_thread+0x48/0x498 [ 86.346473] [] kthread+0xd0/0xe8 [ 86.351299] [] ret_from_fork+0x10/0x50 This seems to be caused by the dwc2_wait_for_mode() calling usleep_range() while the hstog->lock spinlock is held, since we take that before calling dwc2_hsotg_core_init_disconnected(). This patch avoids the issue by adding an extra argument to dwc2_core_reset(), as suggested by John Youn, which allows us to skip the waiting, which should be unnecessary when calling from dwc2_hsotg_core_init_disconnected(). 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: 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

usb: dwc2: Rearrange param structure members

2017-01-24T14:19:06Z

Group the members by global, host, and gadget params. Formatting and organizational change only. Signed-off-by: John Youn Signed-off-by: Felipe Balbi

usb: dwc2: Update parameter types

2017-01-24T14:19:05Z

Update the param types to appropriately sized ints and bools. Signed-off-by: John Youn Signed-off-by: Felipe Balbi

usb: dwc2: Set core parameters to default values

2017-01-24T14:19:05Z

Initialize the core parameters to their default, auto-detected values. Remove all the previous dwc2_set_param* methods. Most of what this code is doing is handling defaults for "not set" values and other trivial checks. The checking can be simplified and will be done in a later commit. This allows us to change only those parameters that won't work with default settings. It also allows us to use non-int parameters. Signed-off-by: John Youn Signed-off-by: Felipe Balbi