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| author | Axel Lin <axel.lin@ingics.com> | 2014-02-18 22:02:47 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2014-02-19 13:38:31 +0900 |
| commit | aca0924b4819e813bdae2c595bf736ec2b593585 (patch) | |
| tree | 3f01ba3aead20b8a06cf544b929e9caff983aa49 | |
| parent | cd60080fd6200bd2e5ca9bf5135d32c06a8e6f3b (diff) | |
| download | talos-obmc-linux-aca0924b4819e813bdae2c595bf736ec2b593585.tar.gz talos-obmc-linux-aca0924b4819e813bdae2c595bf736ec2b593585.zip | |
spi: omap2-mcspi: Convert to let spi core validate transfer speed
Set master->max_speed_hz and master->min_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>
| -rw-r--r-- | drivers/spi/spi-omap2-mcspi.c | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c index d90edaaa7f69..48d218e5fa01 100644 --- a/drivers/spi/spi-omap2-mcspi.c +++ b/drivers/spi/spi-omap2-mcspi.c @@ -1213,8 +1213,7 @@ static int omap2_mcspi_transfer_one_message(struct spi_master *master, void *rx_buf = t->rx_buf; unsigned len = t->len; - if (t->speed_hz > OMAP2_MCSPI_MAX_FREQ - || (len && !(rx_buf || tx_buf))) { + if ((len && !(rx_buf || tx_buf))) { dev_dbg(mcspi->dev, "transfer: %d Hz, %d %s%s, %d bpw\n", t->speed_hz, len, @@ -1223,12 +1222,6 @@ static int omap2_mcspi_transfer_one_message(struct spi_master *master, t->bits_per_word); return -EINVAL; } - if (t->speed_hz && t->speed_hz < (OMAP2_MCSPI_MAX_FREQ >> 15)) { - dev_dbg(mcspi->dev, "speed_hz %d below minimum %d Hz\n", - t->speed_hz, - OMAP2_MCSPI_MAX_FREQ >> 15); - return -EINVAL; - } if (m->is_dma_mapped || len < DMA_MIN_BYTES) continue; @@ -1340,6 +1333,8 @@ static int omap2_mcspi_probe(struct platform_device *pdev) master->transfer_one_message = omap2_mcspi_transfer_one_message; master->cleanup = omap2_mcspi_cleanup; master->dev.of_node = node; + master->max_speed_hz = OMAP2_MCSPI_MAX_FREQ; + master->min_speed_hz = OMAP2_MCSPI_MAX_FREQ >> 15; platform_set_drvdata(pdev, master); |
