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spi: mchp-pci1xxxx: Fix length of SPI transactions not set properly in driver

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In pci1xxxx_spi_transfer_one API, length of SPI transaction gets cleared
by setting of length mask. Set length of transaction only after masking
length field.

Fixes: 1cc0cbea71 ("spi: microchip: pci1xxxx: Add driver for SPI controller of PCI1XXXX PCIe switch")
Signed-off-by: Tharun Kumar P <tharunkumar.pasumarthi@microchip.com>
Link: https://lore.kernel.org/r/20230404171613.1336093-2-tharunkumar.pasumarthi@microchip.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Tharun Kumar P 2023-04-04 22:46:11 +05:30 committed by Mark Brown
parent 43bac5158b
commit 35c8c5e503
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GPG Key ID: 24D68B725D5487D0
1 changed files with 2 additions and 1 deletions
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3
drivers/spi/spi-pci1xxxx.c
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@ -199,8 +199,9 @@ static int pci1xxxx_spi_transfer_one(struct spi_controller *spi_ctlr,
else
regval &= ~SPI_MST_CTL_MODE_SEL;
regval |= ((clkdiv << 5) | SPI_FORCE_CE | (len << 8));
regval |= ((clkdiv << 5) | SPI_FORCE_CE);
regval &= ~SPI_MST_CTL_CMD_LEN_MASK;
regval |= (len << 8);
writel(regval, par->reg_base +
SPI_MST_CTL_REG_OFFSET(p->hw_inst));
regval = readl(par->reg_base +