diff options
| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-03-19 09:47:30 +0100 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-03-19 09:47:30 +0100 |
| commit | 0d4a42f6bd298e826620585e766a154ab460617a (patch) | |
| tree | 406d8f7778691d858dbe3e48e4bbb10e99c0a58a /drivers/spi/spi-bitbang.c | |
| parent | d62b4892f3d9f7dd2002e5309be10719d6805b0f (diff) | |
| parent | a937536b868b8369b98967929045f1df54234323 (diff) | |
Merge tag 'v3.9-rc3' into drm-intel-next-queued
Backmerge so that I can merge Imre Deak's coalesced sg entries fixes,
which depend upon the new for_each_sg_page introduce in
commit a321e91b6d73ed011ffceed384c40d2785cf723b
Author: Imre Deak <imre.deak@intel.com>
Date: Wed Feb 27 17:02:56 2013 -0800
lib/scatterlist: add simple page iterator
The merge itself is just two trivial conflicts:
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/spi/spi-bitbang.c')
| -rw-r--r-- | drivers/spi/spi-bitbang.c | 33 |
1 files changed, 17 insertions, 16 deletions
diff --git a/drivers/spi/spi-bitbang.c b/drivers/spi/spi-bitbang.c index 8b3d8efafd3c..a63d7da3bfe2 100644 --- a/drivers/spi/spi-bitbang.c +++ b/drivers/spi/spi-bitbang.c @@ -69,7 +69,7 @@ static unsigned bitbang_txrx_8( unsigned ns, struct spi_transfer *t ) { - unsigned bits = t->bits_per_word ? : spi->bits_per_word; + unsigned bits = t->bits_per_word; unsigned count = t->len; const u8 *tx = t->tx_buf; u8 *rx = t->rx_buf; @@ -95,7 +95,7 @@ static unsigned bitbang_txrx_16( unsigned ns, struct spi_transfer *t ) { - unsigned bits = t->bits_per_word ? : spi->bits_per_word; + unsigned bits = t->bits_per_word; unsigned count = t->len; const u16 *tx = t->tx_buf; u16 *rx = t->rx_buf; @@ -121,7 +121,7 @@ static unsigned bitbang_txrx_32( unsigned ns, struct spi_transfer *t ) { - unsigned bits = t->bits_per_word ? : spi->bits_per_word; + unsigned bits = t->bits_per_word; unsigned count = t->len; const u32 *tx = t->tx_buf; u32 *rx = t->rx_buf; @@ -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; |