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authorGrant Likely <grant.likely@secretlab.ca>2013-02-05 12:30:13 +0000
committerGrant Likely <grant.likely@secretlab.ca>2013-02-05 12:30:13 +0000
commitf305a0a8d7fcd1a600bd0b727cd8137ed223f721 (patch)
tree982681a7e3c643096b65b9626ae993597155979d /drivers/spi/spi-bitbang.c
parent766ed70447e0a9cfb23d068a4a929e18e54b0022 (diff)
parentd560040f7d6fbe0a2990b8f6edca1815e19e72f5 (diff)
downloadlwn-f305a0a8d7fcd1a600bd0b727cd8137ed223f721.tar.gz
lwn-f305a0a8d7fcd1a600bd0b727cd8137ed223f721.zip
Merge branch 'broonie/spi-next' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc.git
Minor features and bug fixes for PXA, OMAP and GPIO deivce drivers and a cosmetic change to the bitbang driver. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'drivers/spi/spi-bitbang.c')
-rw-r--r--drivers/spi/spi-bitbang.c27
1 files changed, 14 insertions, 13 deletions
diff --git a/drivers/spi/spi-bitbang.c b/drivers/spi/spi-bitbang.c
index 61beaec7cbed..a63d7da3bfe2 100644
--- a/drivers/spi/spi-bitbang.c
+++ b/drivers/spi/spi-bitbang.c
@@ -427,40 +427,41 @@ EXPORT_SYMBOL_GPL(spi_bitbang_transfer);
*/
int spi_bitbang_start(struct spi_bitbang *bitbang)
{
- int status;
+ struct spi_master *master = bitbang->master;
+ int status;
- if (!bitbang->master || !bitbang->chipselect)
+ if (!master || !bitbang->chipselect)
return -EINVAL;
INIT_WORK(&bitbang->work, bitbang_work);
spin_lock_init(&bitbang->lock);
INIT_LIST_HEAD(&bitbang->queue);
- if (!bitbang->master->mode_bits)
- bitbang->master->mode_bits = SPI_CPOL | SPI_CPHA | bitbang->flags;
+ if (!master->mode_bits)
+ master->mode_bits = SPI_CPOL | SPI_CPHA | bitbang->flags;
- if (!bitbang->master->transfer)
- bitbang->master->transfer = spi_bitbang_transfer;
+ if (!master->transfer)
+ master->transfer = spi_bitbang_transfer;
if (!bitbang->txrx_bufs) {
bitbang->use_dma = 0;
bitbang->txrx_bufs = spi_bitbang_bufs;
- if (!bitbang->master->setup) {
+ if (!master->setup) {
if (!bitbang->setup_transfer)
bitbang->setup_transfer =
spi_bitbang_setup_transfer;
- bitbang->master->setup = spi_bitbang_setup;
- bitbang->master->cleanup = spi_bitbang_cleanup;
+ master->setup = spi_bitbang_setup;
+ master->cleanup = spi_bitbang_cleanup;
}
- } else if (!bitbang->master->setup)
+ } else if (!master->setup)
return -EINVAL;
- if (bitbang->master->transfer == spi_bitbang_transfer &&
+ if (master->transfer == spi_bitbang_transfer &&
!bitbang->setup_transfer)
return -EINVAL;
/* this task is the only thing to touch the SPI bits */
bitbang->busy = 0;
bitbang->workqueue = create_singlethread_workqueue(
- dev_name(bitbang->master->dev.parent));
+ dev_name(master->dev.parent));
if (bitbang->workqueue == NULL) {
status = -EBUSY;
goto err1;
@@ -469,7 +470,7 @@ int spi_bitbang_start(struct spi_bitbang *bitbang)
/* driver may get busy before register() returns, especially
* if someone registered boardinfo for devices
*/
- status = spi_register_master(bitbang->master);
+ status = spi_register_master(master);
if (status < 0)
goto err2;