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* [PATCH] spi: spi-imx: spi_imx_transfer(): add support for effective_speed_hz
@ 2020-09-17 20:24 Marc Kleine-Budde
  2020-09-23 19:00 ` Mark Brown
  0 siblings, 1 reply; 2+ messages in thread
From: Marc Kleine-Budde @ 2020-09-17 20:24 UTC (permalink / raw)
  To: Mark Brown
  Cc: linux-spi, Marc Kleine-Budde, NXP Linux Team, kernel, Shawn Guo,
	linux-arm-kernel

This patch implementes the reporting of the effectivly used speed_hz for the
transfer by setting tfr->effective_speed_hz.

See the following patch, which adds this feature to the SPI core for more
information:

    5d7e2b5ed585 spi: core: allow reporting the effectivly used speed_hz for a transfer

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 drivers/spi/spi-imx.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
index 38a5f1304cec..13692c69676f 100644
--- a/drivers/spi/spi-imx.c
+++ b/drivers/spi/spi-imx.c
@@ -1503,6 +1503,8 @@ static int spi_imx_transfer(struct spi_device *spi,
 {
 	struct spi_imx_data *spi_imx = spi_master_get_devdata(spi->master);
 
+	transfer->effective_speed_hz = spi_imx->spi_bus_clk;
+
 	/* flush rxfifo before transfer */
 	while (spi_imx->devtype_data->rx_available(spi_imx))
 		readl(spi_imx->base + MXC_CSPIRXDATA);
-- 
2.28.0


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2020-09-17 20:24 [PATCH] spi: spi-imx: spi_imx_transfer(): add support for effective_speed_hz Marc Kleine-Budde
2020-09-23 19:00 ` Mark Brown

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