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authorAxel Lin <axel.lin@ingics.com>2014-02-20 14:37:56 +0100
committerMark Brown <broonie@linaro.org>2014-03-03 05:35:27 +0100
commit765ee709eb40abf0c43c6d864ac6f01677b7fd5a (patch)
tree7e13278d3a0fbd55588ecf064c146140ff553433 /drivers
parentspi: dw-mmio: remove HAVE_CLK build dependecy (diff)
downloadlinux-765ee709eb40abf0c43c6d864ac6f01677b7fd5a.tar.xz
linux-765ee709eb40abf0c43c6d864ac6f01677b7fd5a.zip
spi: dw: Convert to let spi core validate transfer speed
Set master->max_speed_hz then spi core will handle checking transfer speed. So we can remove the same checking in this driver. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/spi/spi-dw.c7
1 files changed, 1 insertions, 6 deletions
diff --git a/drivers/spi/spi-dw.c b/drivers/spi/spi-dw.c
index bf98d63d92b3..9e4a0aa7d341 100644
--- a/drivers/spi/spi-dw.c
+++ b/drivers/spi/spi-dw.c
@@ -439,12 +439,6 @@ static void pump_transfers(unsigned long data)
if (transfer->speed_hz != speed) {
speed = transfer->speed_hz;
- if (speed > dws->max_freq) {
- printk(KERN_ERR "MRST SPI0: unsupported"
- "freq: %dHz\n", speed);
- message->status = -EIO;
- goto early_exit;
- }
/* clk_div doesn't support odd number */
clk_div = dws->max_freq / speed;
@@ -809,6 +803,7 @@ int dw_spi_add_host(struct device *dev, struct dw_spi *dws)
master->cleanup = dw_spi_cleanup;
master->setup = dw_spi_setup;
master->transfer = dw_spi_transfer;
+ master->max_speed_hz = dws->max_freq;
/* Basic HW init */
spi_hw_init(dws);