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685e8dae19
Implement support for DSI command transfer. Transmission of both Short Packet and Long Packet is implemented, so is command transmission to request response from peripheral device and transmission of non-read command with BTA. The AXI memory access mode is currently not implemented, each transfer is performed purely using controller register interface. Short Packet transfer can transfer up to 2 Bytes of data, Long Packet transfer can transfer up to 16 Bytes of data. Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Link: https://lore.kernel.org/r/20250831190507.327848-1-marek.vasut+renesas@mailbox.org Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>