Add virtio-spi.h header for virtio SPI.
Signed-off-by: Haixu Cui <quic_haixcui@xxxxxxxxxxx>
---
include/uapi/linux/virtio_spi.h | 185 ++++++++++++++++++++++++++++++++
1 file changed, 185 insertions(+)
create mode 100644 include/uapi/linux/virtio_spi.h
+ * @max_cs_setup_ns: the maximum delay supported after chipselect is asserted,And before clock start. may also sound good, if we can write "delay between CS assert to clock start"
+ * in ns unit, 0 means delay is not supported to introduce after chipselect is
+ * asserted.
+ * @max_cs_hold_ns: the maximum delay supported before chipselect is deasserted,
+ * in ns unit, 0 means delay is not supported to introduce before chipselect
+ * is deasserted.
+ * @max_cs_incative_ns: maximum delay supported after chipselect is deasserted,
+ * in ns unit, 0 means delay is not supported to introduce after chipselect is
+ * deasserted.
+ */