spi: airoha: buffer must be 0xff-ed before writing

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During writing, the entire flash page (including OOB) will be updated
with the values from the temporary buffer, so we need to fill the
untouched areas of the buffer with 0xff value to prevent accidental
data overwriting.

Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://patch.msgid.link/20251012121707.2296160-14-mikhail.kshevetskiy@iopsys.eu
Signed-off-by: Mark Brown <broonie@kernel.org>

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Mikhail Kshevetskiy 2025-10-12 15:17:04 +03:00 • committed by Mark Brown

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commit 0743acf746

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drivers/spi/spi-airoha-snfi.c

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