Unverified Commit 36735783 authored Nov 02, 2017 by Hiromitsu Yamasaki Committed by Mark Brown Nov 02, 2017

spi: sh-msiof: Fix DMA transfer size check



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

Fixes: b0d0ce8b ("spi: sh-msiof: Add DMA support")
Signed-off-by: Hiromitsu Yamasaki <hiromitsu.yamasaki.ym@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Dirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

parent 2bd6bf03

drivers/spi/spi-sh-msiof.c

+1 −1

Original line number	Original line	Diff line number	Diff line
	@@ -900,7 +900,7 @@ static int sh_msiof_transfer_one(struct spi_master *master,
	break;		break;
	copy32 = copy_bswap32;		copy32 = copy_bswap32;
	} else if (bits <= 16) {		} else if (bits <= 16) {
	if (l & 1)		if (l & 3)
	break;		break;
	copy32 = copy_wswap32;		copy32 = copy_wswap32;
	} else {		} else {