diff options
| author | Mark Brown <broonie@linaro.org> | 2013-07-10 15:06:46 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2013-07-15 11:39:30 +0100 |
| commit | 69ea672a13a9b702ea3dc84de0cd9e1f4a088217 (patch) | |
| tree | 21c20ea499d3e8fcbb664ec7ea8448f87c5e663b /drivers/spi/spi-omap-100k.c | |
| parent | 407d600f1fb99978bde36b79403f6177865697b6 (diff) | |
| download | linux-69ea672a13a9b702ea3dc84de0cd9e1f4a088217.tar.bz2 | |
spi/omap-100k: Use core functionality to check validity of transfers
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'drivers/spi/spi-omap-100k.c')
| -rw-r--r-- | drivers/spi/spi-omap-100k.c | 32 |
1 files changed, 2 insertions, 30 deletions
diff --git a/drivers/spi/spi-omap-100k.c b/drivers/spi/spi-omap-100k.c index 18bcaf3bcf17..3b42a4ba8fa2 100644 --- a/drivers/spi/spi-omap-100k.c +++ b/drivers/spi/spi-omap-100k.c @@ -424,7 +424,6 @@ static int omap1_spi100k_transfer(struct spi_device *spi, struct spi_message *m) { struct omap1_spi100k *spi100k; unsigned long flags; - struct spi_transfer *t; m->actual_length = 0; m->status = -EINPROGRESS; @@ -435,35 +434,6 @@ static int omap1_spi100k_transfer(struct spi_device *spi, struct spi_message *m) if (spi100k->state == SPI_SHUTDOWN) return -ESHUTDOWN; - /* reject invalid messages and transfers */ - if (list_empty(&m->transfers) || !m->complete) - return -EINVAL; - - list_for_each_entry(t, &m->transfers, transfer_list) { - const void *tx_buf = t->tx_buf; - void *rx_buf = t->rx_buf; - unsigned len = t->len; - - if (t->speed_hz > OMAP1_SPI100K_MAX_FREQ - || (len && !(rx_buf || tx_buf))) { - dev_dbg(&spi->dev, "transfer: %d Hz, %d %s%s, %d bpw\n", - t->speed_hz, - len, - tx_buf ? "tx" : "", - rx_buf ? "rx" : "", - t->bits_per_word); - return -EINVAL; - } - - if (t->speed_hz && t->speed_hz < OMAP1_SPI100K_MAX_FREQ/(1<<16)) { - dev_dbg(&spi->dev, "%d Hz max exceeds %d\n", - t->speed_hz, - OMAP1_SPI100K_MAX_FREQ/(1<<16)); - return -EINVAL; - } - - } - spin_lock_irqsave(&spi100k->lock, flags); list_add_tail(&m->queue, &spi100k->msg_queue); queue_work(omap1_spi100k_wq, &spi100k->work); @@ -496,6 +466,8 @@ static int omap1_spi100k_probe(struct platform_device *pdev) master->num_chipselect = 2; master->mode_bits = MODEBITS; master->bits_per_word_mask = SPI_BPW_RANGE_MASK(4, 32); + master->min_speed_hz = OMAP1_SPI100K_MAX_FREQ/(1<<16); + master->max_speed_hz = OMAP1_SPI100K_MAX_FREQ; platform_set_drvdata(pdev, master); |