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authorThomas Kopp <thomas.kopp@microchip.com>2020-09-21 10:10:36 +0300
committerMark Brown <broonie@kernel.org>2020-10-02 01:45:26 +0300
commit23f370c748580643d17b5e064478b89cba3fdc78 (patch)
treec5410cd122078fd750292bf5778728ba7db6d500 /drivers/spi
parent9d3621525018dbff2795e2bab17572fd20431234 (diff)
downloadlinux-23f370c748580643d17b5e064478b89cba3fdc78.tar.xz
spi: atmel: Exposing effective spi speed
This patch implements the reporting of the effectively used speed_hz for the transfer by setting xfer->effective_speed_hz. See the following patch, which adds this feature to the SPI core for more information: commit 5d7e2b5ed585 ("spi: core: allow reporting the effectivly used speed_hz for a transfer") Signed-off-by: Thomas Kopp <thomas.kopp@microchip.com> Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com> Link: https://lore.kernel.org/r/20200921071036.2091-1-thomas.kopp@microchip.com Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
-rw-r--r--drivers/spi/spi-atmel.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c
index 7c68d5cdbdc6..ce5bd06d49b7 100644
--- a/drivers/spi/spi-atmel.c
+++ b/drivers/spi/spi-atmel.c
@@ -858,6 +858,7 @@ static int atmel_spi_set_xfer_speed(struct atmel_spi *as,
csr = spi_readl(as, CSR0 + 4 * chip_select);
csr = SPI_BFINS(SCBR, scbr, csr);
spi_writel(as, CSR0 + 4 * chip_select, csr);
+ xfer->effective_speed_hz = bus_hz / scbr;
return 0;
}