The usb_get_phy() function returns either a valid pointer to phy or
ERR_PTR() error, check for NULL always fails and may lead to oops on
error path, fix this issue.
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Set up function pointers for DMA so get closer to
being able to build in all the DMA engines.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Pass struct musb to tusb_dma_omap() and is_cppi_enabled(),
and add macros for the other DMA controllers. Populate the
platform specific quirks with the DMA type and use it during
runtime.
Note that platform glue layers with no custom DMA code are
tagged with MUSB_DMA_INVENTRA which may have a chance of
working. Looks like the defconfigs for these use PIO_ONLY,
so this should not break existing configs.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This allows the endpoints to work when multiple MUSB glue
layers are built in.
Cc: Fabio Baltieri <fabio.baltieri@linaro.org>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Apelete Seketeli <apelete@seketeli.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Following the name change of the NOP transceiver driver in commit
4525bee (usb: phy: rename usb_nop_xceiv to usb_phy_generic), the
transceiver driver was no longer operable under its old name.
Register the transceiver driver before calling usb_get_phy() to make
sure we are noticed by an error message if it is not available.
Signed-off-by: Apelete Seketeli <apelete@seketeli.net>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Add support for Ingenic JZ4740 USB Device Controller through a
specific musb glue layer.
JZ4740 UDC not being OTG compatible and missing some hardware
registers, this musb glue layer is written from scratch to be used in
gadget mode only and take silicon design specifics into account.
Signed-off-by: Apelete Seketeli <apelete@seketeli.net>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
