spi: spi-fsl-dspi: Fixup regmap configuration (8570043e) · Commits · 戴 / test

Mark volatile registers to avoid caching bugs. Note: SPI_MCR is marked volatile because of CLR_TXF and CLR_RXF bits. Signed-off-by:

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)