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drivers: spi_dw: Get clock frequency from DTS

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The spi_dw driver used system clock frequency
as a base for SPI bus frequency calculation.
This commit corrects that by obtaining the needed value from DTS.

Signed-off-by: Piotr Zięcik <piotr.ziecik@nordicsemi.no>
This commit is contained in:
Piotr Zięcik 2019-04-11 14:28:52 +02:00 • committed by Carles Cufí
commit 4a543e138d
7 changed files with 19 additions and 16 deletions
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1
soc/xtensa/intel_s1000/dts_fixup.h
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@ -42,6 +42,7 @@
#define DT_DW_ICTL_IRQ_FLAGS DT_SNPS_DESIGNWARE_INTC_81800_IRQ_0_SENSE
#define DT_SPI_0_BASE_ADDRESS DT_SNPS_DESIGNWARE_SPI_E000_BASE_ADDRESS
#define DT_SPI_0_CLOCK_FREQUENCY DT_SNPS_DESIGNWARE_SPI_E000_CLOCKS_CLOCK_FREQUENCY
#define DT_SPI_0_NAME DT_SNPS_DESIGNWARE_SPI_E000_LABEL
#define DT_SPI_0_IRQ DT_SNPS_DESIGNWARE_SPI_E000_IRQ_0
#define DT_SPI_DW_IRQ_FLAGS DT_SNPS_DESIGNWARE_SPI_E000_IRQ_0_SENSE