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>
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>
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>
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>
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>
Use kzalloc instead of kmalloc to allocate struct tegra_usb_phy.
This ensures that all function pointers in member u_phy are
initialized to NULL.
Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Almost nothing from this file is used, and the file will hopefully be
deleted soon. Copy the tiny portions that are used directly into
tegra_usb_phy.c. I believe that Venu Byravarasu is working on cleaning up
our USB driver, and those cleanups will remove the need for these
constants.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Nothing from these files is needed, so remove the includes. This helps
single zImage work by reducing use of the mach-tegra/include/mach/
directory.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
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>
Venu Byravarasu