From aca0924b4819e813bdae2c595bf736ec2b593585 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 18 Feb 2014 22:02:47 +0800 Subject: [PATCH] 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 Signed-off-by: Mark Brown --- drivers/spi/spi-omap2-mcspi.c | 11 +++-------- 1 file 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); -- 2.39.2