The OMAP's High Speed Host controller can interface to ULPI/UTMI PHY's transparently i.e. whithout requiring the device drivers to access the PHY [1]. However, the OS must ensure that the PHY has the necessary resources (power/clock/reset) enabled before it is used. Till now, the omap-ehci driver was managing the power and reset of the PHY whereas, clock enabling was left to the bootloader or board files. In this patchset we make the NOP PHY driver (nop-usb-xceiv.c) handle all the PHY resources that are available so that it can be used by platforms like OMAP. The omap-ehci driver instantiates a PHY platform device for each port that is in PHY mode. It then uses the USB PHY APIs to manage the PHY. All this results in a much cleaner code and makes USB PHY resource management work properly on OMAP. NOTE: Only omap4panda board is adapted for the changes. So USB Host will break for other boards. Once we have done a priliminary review, I can adapt other boards as well. This patchset depends on the series https://lkml.org/lkml/2013/1/2/144 git://github.com/rogerq/linux.git arm-for-next-usbhost9-part -- cheeer, -roger [1] - In practice we would need to access the PHY to work around Silicon Erratas in the OMAP's USB Host IP. Roger Quadros (14): mfd: omap-usb-host: Consolidate OMAP USB-HS platform data usb: phy: Add new API usb_get_phy_from_dev() usb: xceiv: nop: Manage PHY clock usb: phy: nop: Handle power supply regulator for the PHY usb: phy: nop: Handle RESET for the PHY mfd: omap-usb-host: update nports in platform_data usb: ehci-omap: Instantiate PHY devices if required mfd: omap-usb-host: Remove PHY reset handling code usb: ehci-omap: Remove PHY reset handling code usb: ehci-omap: Remove PHY regulator handling code ARM: OMAP2+: omap4panda: Provide USB Host's PHY platform data ARM: OMAP2+: omap4panda: Adapt HUB power to regulator framework ARM: OMAP2+: omap4panda: Adapt HUB reset to regulator framework ARM: OMAP2+: omap4panda: Remove irrelevant USB host platform data arch/arm/mach-omap2/board-3430sdp.c | 2 +- arch/arm/mach-omap2/board-3630sdp.c | 2 +- arch/arm/mach-omap2/board-am3517crane.c | 2 +- arch/arm/mach-omap2/board-am3517evm.c | 2 +- arch/arm/mach-omap2/board-cm-t35.c | 2 +- arch/arm/mach-omap2/board-cm-t3517.c | 2 +- arch/arm/mach-omap2/board-devkit8000.c | 2 +- arch/arm/mach-omap2/board-igep0020.c | 4 +- arch/arm/mach-omap2/board-omap3beagle.c | 2 +- arch/arm/mach-omap2/board-omap3evm.c | 2 +- arch/arm/mach-omap2/board-omap3pandora.c | 2 +- arch/arm/mach-omap2/board-omap3stalker.c | 2 +- arch/arm/mach-omap2/board-omap3touchbook.c | 2 +- arch/arm/mach-omap2/board-omap4panda.c | 117 +++++++++++++----- arch/arm/mach-omap2/board-overo.c | 2 +- arch/arm/mach-omap2/board-zoom.c | 2 +- arch/arm/mach-omap2/usb-host.c | 30 +---- arch/arm/mach-omap2/usb.h | 21 +--- drivers/mfd/omap-usb-host.c | 64 +--------- drivers/mfd/omap-usb-tll.c | 8 +- drivers/usb/host/ehci-omap.c | 182 ++++++++++++++-------------- drivers/usb/otg/nop-usb-xceiv.c | 86 +++++++++++++ drivers/usb/otg/otg.c | 36 ++++++ include/linux/platform_data/usb-omap.h | 28 ++--- include/linux/usb/nop-usb-xceiv.h | 1 + include/linux/usb/phy.h | 6 + 26 files changed, 345 insertions(+), 266 deletions(-) -- 1.7.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
