Based and tested on 'usb-next' branch of Greg's usb tree, with relevant device tree patches[1] Hi Alan, I have included your Acked-by in all the four patches, but there has been some amount of restructuring as suggested by Tomasz Figa. Please let me know if you have some comments on this patch-series. Changes from v4: - Addressed review comments for restructuring exynos_ohci_get_phy() and exynos_ehci_get_phy(); and thereby adding proper checks in exynos_ohci_phy_enable()/disable() as well as exynos_ehci_phy_enable()/ disable(). Changes from v3: - Calling usb_phy_shutdown() when exynos_o/ehci_phy_enable() is failing. - Made exynos_o/ehci_phy_disable() return void, since its return value did not serve any purpose. - Calling clk_disable_unprepare() in exynos_o/ehci_resume() when exynos_o/ehci_phy_enable() is failed. Changes from v2: - Added two patches in the series for some cleanup. usb: ohci-exynos: Use struct device instead of platform_device usb: ehci-exynos: Use struct device instead of platform_device - Addressed review comments. -- Moved exynos_ohci_phyg_on()/off routines inside exynos_ohci_phy_enable()/disable. -- Added functions exynos_ehci_phy_enable() and exynos_ehci_phy_disable() and moved exynos_ehci_phyg_on()/off routines respectively in them. -- Added necessary checks. [1]: [PATCH 0/4] dts: Add usb2phy to Exynos 5250/5420 https://lkml.org/lkml/2014/4/30/119 Kamil Debski (1): usb: ehci-exynos: Change to use phy provided by the generic phy framework Vivek Gautam (3): usb: ohci-exynos: Use struct device instead of platform_device usb: ehci-exynos: Use struct device instead of platform_device usb: ohci-exynos: Add facility to use phy provided by the generic phy framework .../devicetree/bindings/usb/exynos-usb.txt | 31 +++++ drivers/usb/host/ehci-exynos.c | 136 ++++++++++++++++---- drivers/usb/host/ohci-exynos.c | 134 +++++++++++++++---- 3 files changed, 254 insertions(+), 47 deletions(-) -- 1.7.10.4 -- 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