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spi: Fix for v6.6

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A fix for the npcm-fiu driver in cases where there are no dummy bytes
 during reads.
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Merge tag 'spi-fix-v6-6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fix from Mark Brown:
 "A fix for the npcm-fiu driver in cases where there are no dummy bytes
  during reads"

* tag 'spi-fix-v6-6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: npcm-fiu: Fix UMA reads when dummy.nbytes == 0
This commit is contained in:
Linus Torvalds 2023-10-18 09:37:36 -07:00
parent e1e80380f1 2ec8b01097
commit dd72f9c7e5
1 changed files with 3 additions and 2 deletions
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5
drivers/spi/spi-npcm-fiu.c
View file

@ -353,8 +353,9 @@ 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;
uma_cfg |= ilog2(op->dummy.buswidth)
<< NPCM_FIU_UMA_CFG_DBPCK_SHIFT;
if (op->dummy.nbytes)
uma_cfg |= ilog2(op->dummy.buswidth)
<< NPCM_FIU_UMA_CFG_DBPCK_SHIFT;
uma_cfg |= ilog2(op->data.buswidth)
<< NPCM_FIU_UMA_CFG_RDBPCK_SHIFT;
uma_cfg |= op->dummy.nbytes << NPCM_FIU_UMA_CFG_DBSIZ_SHIFT;