drivers: usb: udc: stm32: accept non-word-aligned MaxPacketSize or FIFOs
STM32 OTG USB controllers use word-addressable RAM with a 32-bit word size
so all allocations from the USB SRAM must be 32-bit aligned. The driver did
not accept unaligned values of wMaxPacketSize, and FIFO allocation code was
implicitly expecting FIFO sizes to be aligned as well (since it allocated
"bytes / 4" without rounding up).
Update driver to accept values of wMaxPacketSize that aren't word-aligned
and to allocate properly sized FIFOs sizes when an unaligned size has been
requested.
Signed-off-by: Mathieu Choplain <mathieu.choplain-ext@st.com>
1 file changed
