(this is the follow-up to my "initialize (multiple) PHYs for a HCD" series from [0]) Various USB controller drivers parse the "phys" device-tree property and grab all listed PHYs. There is a lot of duplicate code around this in the various drivers: - parse the "phys" property during .probe and save all PHYs in an array - call phy_init and phy_power_on on all PHYs - (where supported by the driver) call phy_power_off during .suspend and phy_power_on during .resume - call phy_power_off and phy_exit during .remove With [0] this functionality was moved to the core HCD driver, meaning that all USB controller drivers now support this without having to implement custom code for it. Thus this series removes this code duplication. The last two patches are a bit special: - after patches #1-4 the chipidea driver is the last driver which sets the "phy" field of struct usb_hcd. remove this logic as the PHY wrapper (which is now part of the core HCD driver) manages the state of all PHYs anyways. - the last patch removes the "phy" field from struct usb_hcd because nothing uses it anymore after the previous patches. it also removes the parsing and managing of a single PHY with the name "usb" as the new PHY wrapper parses all PHYs from the device-tree "phys" property anyways (so the PHY wrapper has the same functionality, except that it doesn't need the phy-name "usb" and it can manage more than one PHY) preconditions for testing this series: all patches from [0] need to be applied. disclaimer: I don't have any hardware that uses any of the affected drivers! [0] http://lists.infradead.org/pipermail/linux-amlogic/2018-January/006274.html Martin Blumenstingl (6): usb: mtu3: remove custom USB PHY handling usb: host: xhci-mtk: remove custom USB PHY handling usb: host: ehci-platform: remove custom USB PHY handling usb: host: ohci-platform: remove custom USB PHY handling usb: chipidea: do not set the "phy" field in struct usb_hcd usb: core: hcd: remove support for initializing a single PHY drivers/usb/chipidea/host.c | 4 +- drivers/usb/core/hcd.c | 37 -------------- drivers/usb/host/ehci-platform.c | 55 ++------------------- drivers/usb/host/ohci-platform.c | 56 ++-------------------- drivers/usb/host/xhci-mtk.c | 98 +------------------------------------ drivers/usb/mtu3/mtu3_plat.c | 101 --------------------------------------- include/linux/usb/hcd.h | 1 - 7 files changed, 12 insertions(+), 340 deletions(-) -- 2.16.1 -- 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
