[PATCH v2] spi: atmel: Exposing effective spi speed

[Thomas Kopp <thomas.kopp@xxxxxxxxxxxxx>]

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@xxxxxxxxxxxxx>
Reviewed-by: Tudor Ambarus <tudor.ambarus@xxxxxxxxxxxxx>
---
 drivers/spi/spi-atmel.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c
index 2cfe6253a784..799229bc34e1 100644
--- a/drivers/spi/spi-atmel.c
+++ b/drivers/spi/spi-atmel.c
@@ -859,6 +859,7 @@ 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;
 }
-- 
2.25.1