From: Dinh Nguyen <[email protected]>
Hello,
This patch series combines the dwc2 gadget and host driver into a single
dual role driver. Here is a breakdown of what each patch does:
1/2 : usb: dwc2: Update Kconfig to support dual-role
- Changes the Kconfig and Makefile to build a single dwc2.ko for all
modes of operation(peripheral, host and dual-role), and only dwc2.ko
is the output for both platforms that have the IP directly connected
and PCI platforms.
2/12 : usb: dwc2: Moves s3c_hsotg gadget data structure into dwc2_hsotg
- Adds the gadget data structure to dwc2_hsotg. Adds pointers to the
dwc2 gadget structure.
3/12 : usb: dwc2: update gadget portion to use common dwc2_hsotg structure
- This patch contains the bulk of the changes in this series. This patch
edits the dwc2 gadget driver to use the update data pointers in the
common dwc2_hsotg structure. The other changes in this patch is to
provide the proper function declarations for building the driver with
the 3 different modes. The last bit of change is removing the dwc2
probe
function from the gadget driver, as there will be a single probe
function that will be in platform.c or pci.c.
4/12 : usb: dwc2: Add DTS compatible string to dwc2_of_match_table
5/12 : usb: dwc2: Add the appropriate init calls in platform code
- This patch add the appropriate init/remove function calls for the 3
different modes that the driver can operate in.
6/12 : usb: dwc2: Initialize the USB core for peripheral mode
- This patch add the gadget init call when a B-Device connector cable
is detected.
7/12 : usb: dwc2: Move gadget interrupts to common interrupt handler
- This patch moves the dwc2 gadget interrupt handlder into the common
dwc2 interrupt handler.
8/12 : usb: dwc2: gadget: Do not fail probe if there isn't a clock node
- Since the dwc2 host driver is not dependent on a clock node, and the
gadget driver is looking for a clock node, add a check for the clock
node in the gadget driver and do not fail even if a clock node is not
provided. This enables platforms(i.e.RPi) that weren't providing a
clock node to still use the driver in dual-role mode.
9/12 : usb: dwc2: initialize the spin_lock for both host and gadget
- Moves the spinlock init call to a common location.
10/12 : usb: dwc2: Add suspend/resume for gadget
11/12 : usb: dwc2: check that the host work queue is valid
- Because the workqueue_struct was a host only feature, we should check
the struct was initialized, which in peripheral it would not be.
12/12 : usb: dwc2: pci: Update pci portion of the dwc2 driver
- Call the spinlock init here as it was removed from the host driver.
This patch series has passed the 0-DAY kernel build testing, and every patch
has been compiled tested. I tested on 2 platforms, SOCFPGA and Raspberry-Pi
B. On the Raspberry-pi, I tested the driver in host and dual-role mode, but
since
the RPi does not have an OTG connector, only host functionality was tested.
This patch series is based on v3.16-rc5. I have pushed this a git repo to make
it more convenient for people to test/review.
git://git.rocketboards.org/linux-socfpga-next.git dwc2_dual_role_v1
Thanks,
Dinh Nguyen (12):
usb: dwc2: Update Kconfig to support dual-role
usb: dwc2: Moves s3c_hsotg gadget data structure into dwc2_hsotg
usb: dwc2: update gadget portion to use common dwc2_hsotg structure
usb: dwc2: Add DTS compatible string to dwc2_of_match_table
usb: dwc2: Add the appropriate init calls in platform code
usb: dwc2: Initialize the USB core for peripheral mode
usb: dwc2: Move gadget interrupts to common interrupt handler
usb: dwc2: gadget: Do not fail probe if there isn't a clock node
usb: dwc2: initialize the spin_lock for both host and gadget
usb: dwc2: Add suspend/resume for gadget
usb: dwc2: check that the host work queue is valid
usb: dwc2: pci: Update pci portion of the dwc2 driver
drivers/usb/dwc2/Kconfig | 59 +-
drivers/usb/dwc2/Makefile | 21 +-
drivers/usb/dwc2/core.h | 70 ++-
drivers/usb/dwc2/core_intr.c | 124 +++-
drivers/usb/dwc2/gadget.c | 1431 +++++++++++++++++-------------------------
drivers/usb/dwc2/hcd.c | 7 +-
drivers/usb/dwc2/hcd.h | 10 -
drivers/usb/dwc2/pci.c | 1 +
drivers/usb/dwc2/platform.c | 58 +-
9 files changed, 877 insertions(+), 904 deletions(-)
--
1.7.9.5
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