diff options
Diffstat (limited to 'drivers/spi/spi_bitbang.c')
-rw-r--r-- | drivers/spi/spi_bitbang.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/spi/spi_bitbang.c b/drivers/spi/spi_bitbang.c index 855b0b06e625..2a5abc08e857 100644 --- a/drivers/spi/spi_bitbang.c +++ b/drivers/spi/spi_bitbang.c | |||
@@ -188,12 +188,6 @@ int spi_bitbang_setup(struct spi_device *spi) | |||
188 | 188 | ||
189 | bitbang = spi_master_get_devdata(spi->master); | 189 | bitbang = spi_master_get_devdata(spi->master); |
190 | 190 | ||
191 | /* Bitbangers can support SPI_CS_HIGH, SPI_3WIRE, and so on; | ||
192 | * add those to master->flags, and provide the other support. | ||
193 | */ | ||
194 | if ((spi->mode & ~(SPI_CPOL|SPI_CPHA|bitbang->flags)) != 0) | ||
195 | return -EINVAL; | ||
196 | |||
197 | if (!cs) { | 191 | if (!cs) { |
198 | cs = kzalloc(sizeof *cs, GFP_KERNEL); | 192 | cs = kzalloc(sizeof *cs, GFP_KERNEL); |
199 | if (!cs) | 193 | if (!cs) |
@@ -452,6 +446,9 @@ int spi_bitbang_start(struct spi_bitbang *bitbang) | |||
452 | spin_lock_init(&bitbang->lock); | 446 | spin_lock_init(&bitbang->lock); |
453 | INIT_LIST_HEAD(&bitbang->queue); | 447 | INIT_LIST_HEAD(&bitbang->queue); |
454 | 448 | ||
449 | if (!bitbang->master->mode_bits) | ||
450 | bitbang->master->mode_bits = SPI_CPOL | SPI_CPHA | bitbang->flags; | ||
451 | |||
455 | if (!bitbang->master->transfer) | 452 | if (!bitbang->master->transfer) |
456 | bitbang->master->transfer = spi_bitbang_transfer; | 453 | bitbang->master->transfer = spi_bitbang_transfer; |
457 | if (!bitbang->txrx_bufs) { | 454 | if (!bitbang->txrx_bufs) { |