spi: spi_amd: Enable dual and quad I/O modes

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The current spi_amd driver only supports single I/O mode, despite the AMD
SPI controller's capability for dual and quad I/O modes for read
operations. And AMD SPI0 controller has limited support for quad mode
write operations. Update the SPI-MEM support function to reflect these
hardware capabilities.

Co-developed-by: Krishnamoorthi M <krishnamoorthi.m@amd.com>
Signed-off-by: Krishnamoorthi M <krishnamoorthi.m@amd.com>
Co-developed-by: Akshata MukundShetty <akshata.mukundshetty@amd.com>
Signed-off-by: Akshata MukundShetty <akshata.mukundshetty@amd.com>
Signed-off-by: Raju Rangoju <Raju.Rangoju@amd.com>
Link: https://patch.msgid.link/20240925133644.2922359-3-Raju.Rangoju@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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Raju Rangoju 2024-09-25 19:06:38 +05:30 • committed by Mark Brown

parent d6dc8b7534

commit 769c16fa86

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1 changed files with 54 additions and 3 deletions

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drivers/spi/spi-amd.c

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