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authorFabrizio Castro <[email protected]>2025-07-04 16:20:35 +0000
committerMark Brown <[email protected]>2025-07-24 13:00:23 +0000
commit8b61c8919dff080d83415523cd68f2fef03ccfc7 (patch)
tree6207d453aa7512bf01d8016ef3269114775eb5c0 /drivers/fpga/microchip-spi.c
parentspi: dt-bindings: Document the RZ/V2H(P) RSPI (diff)
downloadkernel-8b61c8919dff080d83415523cd68f2fef03ccfc7.tar.gz
kernel-8b61c8919dff080d83415523cd68f2fef03ccfc7.zip
spi: Add driver for the RZ/V2H(P) RSPI IP
The Renesas RZ/V2H(P) RSPI IP supports 4-wire and 3-wire serial communications in both host role and target role. It can use a DMA, but the I/O can also be driven by the processor. RX-only, TX-only, and RX-TX operations are available in DMA mode, while in processor I/O mode it only RX-TX operations are supported. Add a driver to support 4-wire serial communications as host role in processor I/O mode. Signed-off-by: Fabrizio Castro <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Mark Brown <[email protected]>
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