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author | Axel Lin <axel.lin@ingics.com> | 2016-04-24 14:59:20 +0800 |
---|---|---|
committer | Mark Brown <broonie@kernel.org> | 2016-05-06 18:18:27 +0100 |
commit | 191ec113487e7e7adc4b890c290f63e9155264ad (patch) | |
tree | 5af5ab9d4fa1a159808e59471d6058625bef58d4 /drivers | |
parent | 989ffc7bd6b0f5ea3423631981f87fde495a8acb (diff) | |
download | linux-stable-191ec113487e7e7adc4b890c290f63e9155264ad.tar.gz linux-stable-191ec113487e7e7adc4b890c290f63e9155264ad.tar.bz2 linux-stable-191ec113487e7e7adc4b890c290f63e9155264ad.zip |
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')
-rw-r--r-- | drivers/spi/spi-pic32-sqi.c | 41 |
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; |