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Unverified Commit 8570043e authored by Esben Haabendal's avatar Esben Haabendal Committed by Mark Brown
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spi: spi-fsl-dspi: Fixup regmap configuration 



Mark volatile registers to avoid caching bugs.

Note: SPI_MCR is marked volatile because of CLR_TXF and CLR_RXF bits.

Signed-off-by: default avatarEsben Haabendal <eha@deif.com>
Acked-by: default avatarMartin Hundebøll <martin@geanix.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent fb9acf5f

drivers/spi/spi-fsl-dspi.c

+12 −0
Original line number Diff line number Diff line
@@ -943,11 +943,23 @@ static int dspi_resume(struct device *dev) 


static SIMPLE_DEV_PM_OPS(dspi_pm, dspi_suspend, dspi_resume);



static const struct regmap_range dspi_volatile_ranges[] = {

	regmap_reg_range(SPI_MCR, SPI_TCR),

	regmap_reg_range(SPI_SR, SPI_SR),

	regmap_reg_range(SPI_PUSHR, SPI_RXFR3),

};



static const struct regmap_access_table dspi_volatile_table = {

	.yes_ranges     = dspi_volatile_ranges,

	.n_yes_ranges   = ARRAY_SIZE(dspi_volatile_ranges),

};



static const struct regmap_config dspi_regmap_config = {

	.reg_bits = 32,

	.val_bits = 32,

	.reg_stride = 4,

	.max_register = 0x88,

	.volatile_table = &dspi_volatile_table,

};



static void dspi_init(struct fsl_dspi *dspi)