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authorAxel Lin <axel.lin@ingics.com>2014-02-19 13:34:47 +0400
committerMark Brown <broonie@linaro.org>2014-03-03 07:59:45 +0400
commit7984b5ca5c6245e332adcb8a8c2aefb2732b40bf (patch)
tree294574391f274f4dd8f2fefb8f7cf77301ccacd6 /drivers/spi/spi-octeon.c
parent85fe414d3228bdecc52366692c6f70c750f687aa (diff)
downloadlinux-7984b5ca5c6245e332adcb8a8c2aefb2732b40bf.tar.xz
spi: octeon: Convert to let spi core validate transfer speed
Set master->max_speed_hz then spi core will handle checking transfer speed. The behavior is different from current code when the speed_hz is greater than the maximum transfer speed supported by the controller. Unless there is other good reason, I think we had better make the behavior consistent with what spi core does. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'drivers/spi/spi-octeon.c')
-rw-r--r--drivers/spi/spi-octeon.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/spi/spi-octeon.c b/drivers/spi/spi-octeon.c
index a51458985ccf..1ed259449c7f 100644
--- a/drivers/spi/spi-octeon.c
+++ b/drivers/spi/spi-octeon.c
@@ -67,8 +67,6 @@ static int octeon_spi_do_transfer(struct octeon_spi *p,
cpol = mode & SPI_CPOL;
speed_hz = xfer->speed_hz ? : spi->max_speed_hz;
- if (speed_hz > OCTEON_SPI_MAX_CLOCK_HZ)
- speed_hz = OCTEON_SPI_MAX_CLOCK_HZ;
clkdiv = octeon_get_io_clock_rate() / (2 * speed_hz);
@@ -214,6 +212,7 @@ static int octeon_spi_probe(struct platform_device *pdev)
master->transfer_one_message = octeon_spi_transfer_one_message;
master->bits_per_word_mask = SPI_BPW_MASK(8);
+ master->max_speed_hz = OCTEON_SPI_MAX_CLOCK_HZ;
master->dev.of_node = pdev->dev.of_node;
err = devm_spi_register_master(&pdev->dev, master);