Unverified Commit e1e2093b authored by Amelie Delaunay's avatar Amelie Delaunay Committed by Mark Brown
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spi: stm32h7: replace private SPI_1HZ_NS with NSEC_PER_SEC 



Replace SPI_1HZ_NS private constant with NSEC_PER_SEC, which is easier
to read and understand.

Signed-off-by: default avatarAmelie Delaunay <amelie.delaunay@foss.st.com>
Signed-off-by: default avatarAlain Volmat <alain.volmat@foss.st.com>
Link: https://lore.kernel.org/r/1612551572-495-8-git-send-email-alain.volmat@foss.st.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent c63b95b7

drivers/spi/spi-stm32.c

+1 −3
Original line number Diff line number Diff line
@@ -162,8 +162,6 @@ 
#define SPI_3WIRE_TX		3

#define SPI_3WIRE_RX		4



#define SPI_1HZ_NS		1000000000



/*

 * use PIO for small transfers, avoiding DMA setup/teardown overhead for drivers

 * without fifo buffers.
@@ -1525,7 +1523,7 @@ static void stm32h7_spi_data_idleness(struct stm32_spi *spi, u32 len) 


	cfg2_clrb |= STM32H7_SPI_CFG2_MIDI;

	if ((len > 1) && (spi->cur_midi > 0)) {

		u32 sck_period_ns = DIV_ROUND_UP(SPI_1HZ_NS, spi->cur_speed);

		u32 sck_period_ns = DIV_ROUND_UP(NSEC_PER_SEC, spi->cur_speed);

		u32 midi = min_t(u32,

				 DIV_ROUND_UP(spi->cur_midi, sck_period_ns),

				 FIELD_GET(STM32H7_SPI_CFG2_MIDI,