Presented patch series fix several problems with S3C-HSOTG driver, thus now
the Multi Function Gadget (MFG) is working correctly.
Those commits consist of EP0 transfer management fixes (ZLP sending code
and NAK management).
Moreover the disconnect irq handler has been removed, since it is available only
at HOST mode.
Code for recovering from device disconnection and connection during ongoing
transfer has been added as well.
The s3c-hsotg driver has been adjusted to use newer usb_gadget_ops callbacks
(namely udc_start and udc_stop) instead of deprecated ones.
Moreover number of EPs is now read from a HW configuration register instead
of statically defined value.
The our_hsotg global variable has been removed and release function has been
added as well to prevent warning messages.
Tested with:
- DFU gadget (various size of the sent data - also packet = MPS)
- Ethernet gadget (CDC and RNDIS)
- Multi Function Gadget (g_multi)
HW:
- Samsung's C210 Universal rev.0
- Samsung's C110 GONI
---
Changes for v2:
- Support for regulator_bulk_*
- Number of EPs determined during runtime
- Usage of udc_start and udc_stop methods instead of deprecated ones
- Code preparation to move to dwc2 driver from s3c-hsotg
Changes for v3:
- Comments refactored to comply with kernel coding style
- Doxygen functions descriptions added
- Removal of our_hsotg global pointer variable
Changes for v4:
- Remove platform dependent code
- Check if dynamically read number of EPs is not equal to zero
- Release function added to prevent warnings
Changes for v5:
- Remove S3C_ prefix for register's definition
- Replace the clk_enable() with clk_prepare_enable() and clk_disable() with
clk_disable_unprepare()
- error fallback code for failed request_irq
Lukasz Majewski (18):
usb:hsotg:samsung: Remove platform dependency from s3c-hsotg
usb:hsotg:samsung: Remove platform dependent functions from s3c-hsotg
usb:hsotg:samsung: Wrappers for USB PHY methods
usb:hsotg:samsung: Use of regulator_bulk_* functions for USB
regulators
usb:hsotg:samsung: NAK management for EP0 (Setup stage of control
transfers)
usb:hsotg:samsung: Sending ZLP packet for IN EP0 transfers
usb:hsotg:samsung: Extract core initialization function
usb:hsotg:samsung: Remove Disconnect Interrupt handler
usb:hsotg:samsung: Rename s3c_hsotg_disconnect function
usb:hsotg:samsung: Cable disconnection recovery code
usb:hsotg:samsung: Determine number of EPs from HW configuration
register
usb:hsotg:samsung: Use new udc_start and udc_stop callbacks
usb:hsotg:samsung: Comments reorganization and cleanup
usb:hsotg:samsung: Remove our_hsotg global pointer
usb:hsotg:samsung: Add release function for hsotg device
usb:hsotg:samsung: Remove the S3C_ prefix from registers definition.
usb:hsotg:samsung: Use clk_prepare_enable and clk_disable_unprepare
usb:hsotg:samsung: err_irq: support for probe function
arch/arm/mach-exynos/mach-nuri.c | 2 +-
arch/arm/mach-exynos/mach-universal_c210.c | 2 +-
arch/arm/mach-s3c64xx/mach-crag6410.c | 2 +-
arch/arm/mach-s3c64xx/mach-smartq.c | 2 +-
arch/arm/mach-s3c64xx/mach-smdk6410.c | 2 +-
arch/arm/mach-s5pv210/mach-goni.c | 2 +-
arch/arm/plat-samsung/devs.c | 2 +-
.../arm/plat-samsung/include/plat/regs-usb-hsotg.h | 379 -----
arch/arm/plat-samsung/include/plat/udc-hs.h | 34 -
drivers/usb/gadget/s3c-hsotg.c | 1635 +++++++++++---------
drivers/usb/gadget/s3c-hsotg.h | 377 +++++
include/linux/platform_data/s3c-hsotg.h | 35 +
12 files changed, 1355 insertions(+), 1119 deletions(-)
delete mode 100644 arch/arm/plat-samsung/include/plat/regs-usb-hsotg.h
delete mode 100644 arch/arm/plat-samsung/include/plat/udc-hs.h
create mode 100644 drivers/usb/gadget/s3c-hsotg.h
create mode 100644 include/linux/platform_data/s3c-hsotg.h
--
1.7.2.3
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