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authorAxel Lin <axel.lin@ingics.com>2016-04-24 14:59:20 +0800
committerMark Brown <broonie@kernel.org>2016-05-06 18:18:27 +0100
commit191ec113487e7e7adc4b890c290f63e9155264ad (patch)
tree5af5ab9d4fa1a159808e59471d6058625bef58d4 /drivers/spi
parent989ffc7bd6b0f5ea3423631981f87fde495a8acb (diff)
spi: pic32-sqi: Remove pic32_sqi_setup and pic32_sqi_cleanup
Current code does not use ctldata at all, so remove spi_set_ctldata call. spi_setup() will set spi->bits_per_word = 8 if it was not set, so remove !spi->max_speed_hz checking. The spi core allows absent of spi->max_speed_hz setting, if it was not set spi_setup() assigns spi->master->max_speed_hz to it. spi core allows spi->max_speed_hz > spi->master->max_speed_hz, in this case spi core will limit the transfer speed to ensure xfer->speed_hz won't greater than spi->master->max_speed_hz so remove checking if spi->max_speed_hz is higher than spi->master->max_speed_hz. As a result, both pic32_sqi_setup() and pic32_sqi_cleanup() can be removed. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
-rw-r--r--drivers/spi/spi-pic32-sqi.c41
1 files changed, 0 insertions, 41 deletions
diff --git a/drivers/spi/spi-pic32-sqi.c b/drivers/spi/spi-pic32-sqi.c
index 74b9e684b10d..ca3c8d94b290 100644
--- a/drivers/spi/spi-pic32-sqi.c
+++ b/drivers/spi/spi-pic32-sqi.c
@@ -460,45 +460,6 @@ static int pic32_sqi_unprepare_hardware(struct spi_master *master)
return 0;
}
-/* This may be called twice for each spi dev */
-static int pic32_sqi_setup(struct spi_device *spi)
-{
- struct pic32_sqi *sqi;
-
- if (spi_get_ctldata(spi)) {
- dev_err(&spi->dev, "is already associated\n");
- return -EBUSY;
- }
-
- /* check word size */
- if (!spi->bits_per_word) {
- dev_err(&spi->dev, "No bits_per_word defined\n");
- return -EINVAL;
- }
-
- /* check maximum SPI clk rate */
- if (!spi->max_speed_hz) {
- dev_err(&spi->dev, "No max speed HZ parameter\n");
- return -EINVAL;
- }
-
- if (spi->master->max_speed_hz < spi->max_speed_hz) {
- dev_err(&spi->dev, "max speed %u HZ is too high\n",
- spi->max_speed_hz);
- return -EINVAL;
- }
-
- sqi = spi_master_get_devdata(spi->master);
- spi_set_ctldata(spi, (void *)sqi);
-
- return 0;
-}
-
-static void pic32_sqi_cleanup(struct spi_device *spi)
-{
- spi_set_ctldata(spi, (void *)NULL);
-}
-
static int ring_desc_ring_alloc(struct pic32_sqi *sqi)
{
struct ring_desc *rdesc;
@@ -700,8 +661,6 @@ static int pic32_sqi_probe(struct platform_device *pdev)
master->mode_bits = SPI_MODE_3 | SPI_MODE_0 | SPI_TX_DUAL |
SPI_RX_DUAL | SPI_TX_QUAD | SPI_RX_QUAD;
master->flags = SPI_MASTER_HALF_DUPLEX;
- master->setup = pic32_sqi_setup;
- master->cleanup = pic32_sqi_cleanup;
master->can_dma = pic32_sqi_can_dma;
master->bits_per_word_mask = SPI_BPW_RANGE_MASK(8, 32);
master->transfer_one_message = pic32_sqi_one_message;