Unverified Commit 2ec8b010 authored by William A. Kennington III's avatar William A. Kennington III Committed by Mark Brown
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spi: npcm-fiu: Fix UMA reads when dummy.nbytes == 0 



We don't want to use the value of ilog2(0) as dummy.buswidth is 0 when
dummy.nbytes is 0. Since we have no dummy bytes, we don't need to
configure the dummy byte bits per clock register value anyway.

Signed-off-by: default avatar"William A. Kennington III" <william@wkennington.com>
Link: https://lore.kernel.org/r/20230922182812.2728066-1-william@wkennington.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 1a8196a9

drivers/spi/spi-npcm-fiu.c

+3 −2
Original line number Diff line number Diff line
@@ -353,6 +353,7 @@ static int npcm_fiu_uma_read(struct spi_mem *mem, 
		uma_cfg |= ilog2(op->cmd.buswidth);

		uma_cfg |= ilog2(op->addr.buswidth)

			<< NPCM_FIU_UMA_CFG_ADBPCK_SHIFT;

		if (op->dummy.nbytes)

			uma_cfg |= ilog2(op->dummy.buswidth)

				<< NPCM_FIU_UMA_CFG_DBPCK_SHIFT;

		uma_cfg |= ilog2(op->data.buswidth)