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spi: mchp-pci1xxxx: Fix length of SPI transactions not set properly in driver
author
Tharun Kumar P
<tharunkumar.pasumarthi@microchip.com>
Tue, 4 Apr 2023 17:16:11 +0000
(22:46 +0530)
committer
Mark Brown
<broonie@kernel.org>
Wed, 5 Apr 2023 11:33:27 +0000
(12:33 +0100)
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:
1cc0cbea7167
("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>
drivers/spi/spi-pci1xxxx.c
patch
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diff --git
a/drivers/spi/spi-pci1xxxx.c
b/drivers/spi/spi-pci1xxxx.c
index
1c57316
..
419a1d3
100644
(file)
--- a/
drivers/spi/spi-pci1xxxx.c
+++ b/
drivers/spi/spi-pci1xxxx.c
@@
-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 +