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spi: sh-msiof: Fix DMA transfer size check

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DMA supports 32-bit words only,
even if BITLEN1 of SITMDR2 register is 16bit.

Fixes: b0d0ce8b6b ("spi: sh-msiof: Add DMA support")
Signed-off-by: Hiromitsu Yamasaki <[email protected]>
Signed-off-by: Simon Horman <[email protected]>
Acked-by: Geert Uytterhoeven <[email protected]>
Acked-by: Dirk Behme <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
This commit is contained in:
Hiromitsu Yamasaki 2017-11-02 10:32:36 +01:00 • committed by Mark Brown
commit 36735783fd
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1 changed files with 1 additions and 1 deletions
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drivers/spi/spi-sh-msiof.c
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@ -900,7 +900,7 @@ static int sh_msiof_transfer_one(struct spi_master *master,
break;
copy32 = copy_bswap32;
} else if (bits <= 16) {
if (l & 1)
if (l & 3)
break;
copy32 = copy_wswap32;
} else {