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path: root/include/linux/usb/tegra_usb_phy.h
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* usb: phy: tegra: don't call into tegra-ehci directlyArnd Bergmann2013-04-231-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | Both phy-tegra-usb.c and ehci-tegra.c export symbols used by the other one, which does not work if one of them or both are loadable modules, resulting in an error like: drivers/built-in.o: In function `utmi_phy_clk_disable': drivers/usb/phy/phy-tegra-usb.c:302: undefined reference to `tegra_ehci_set_phcd' drivers/built-in.o: In function `utmi_phy_clk_enable': drivers/usb/phy/phy-tegra-usb.c:324: undefined reference to `tegra_ehci_set_phcd' drivers/built-in.o: In function `utmi_phy_power_on': drivers/usb/phy/phy-tegra-usb.c:447: undefined reference to `tegra_ehci_set_pts' This turns the interface into a one-way dependency by letting the tegra ehci driver pass two function pointers for callbacks that need to be called by the phy driver. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Venu Byravarasu <vbyravarasu@nvidia.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Felipe Balbi <balbi@ti.com> Cc: Stephen Warren <swarren@nvidia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: host: tegra: make use of PHY pointer of HCDVenu Byravarasu2013-01-281-4/+4
| | | | | | | | | | | | | | As pointer to PHY structure can be stored in struct usb_hcd making use of it, to call Tegra PHY APIs. Call to usb_phy_shutdown() is moved up in tegra_ehci_remove(), so that to avoid dereferencing of hcd after its freed up. Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: Felipe Balbi <balbi@ti.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* usb: add APIs to access host registers from Tegra PHYVenu Byravarasu2013-01-281-0/+4
| | | | | | | | | | As Tegra PHY driver needs to access one of the host registers, added few APIs. Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> [swarren: moved assignment of phy->is_ulpi_phy to previous patch.] Signed-off-by: Stephen Warren <swarren@nvidia.com>
* USB: PHY: tegra: Get rid of instance number to differentiate PHY typeVenu Byravarasu2013-01-281-0/+1
| | | | | | | | | | | | | | Tegra20 USB has 3 PHY instances: Instance 1 and 3 are UTMI. Instance 2 is ULPI. As instance number was used to differentiate ULPI from UTMI, used DT param to get this info and processed accordingly. Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com> Acked-by: Felipe Balbi <balbi@ti.com> [swarren: moved assignment of phy->is_ulpi_phy into this patch out of next patch.] Signed-off-by: Stephen Warren <swarren@nvidia.com>
* USB: PHY: tegra: get rid of instance number to differentiate legacy controllerVenu Byravarasu2013-01-281-0/+1
| | | | | | | | | | | | | Tegra20 USB has 3 PHY instances. Instance 0 is based on legacy PHY interface and other two are standard interfaces. As instance number was used to differentiate legacy from standard interfaces, used DT param to get this info and processed accordingly. Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com> Acked-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* usb: phy: remove unused APIs from Tegra PHY.Venu Byravarasu2013-01-281-4/+0
| | | | | | | | As tegra_usb_phy_clk_disable/enable() are not being used, removing them. Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* usb: move phy driver from mach-tegra to drivers/usbVenu Byravarasu2012-09-051-0/+80
As part of this patch: 1. Moved existing tegra phy driver to drivers/USB directory. 2. Added standard USB phy driver APIs to tegra phy driver. Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
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