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author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-09-10 22:37:36 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-09-10 22:37:36 +0200 |
commit | ec5b103ecfde929004b691f29183255aeeadecd5 (patch) | |
tree | 3b16d0654c074b5b36d06e56110c7218a8685655 /drivers/dma/sh/shdma-base.c | |
parent | Merge tag 'mmc-updates-for-3.12-rc1' of git://git.kernel.org/pub/scm/linux/ke... (diff) | |
parent | dma: edma: Remove limits on number of slots (diff) | |
download | linux-ec5b103ecfde929004b691f29183255aeeadecd5.tar.xz linux-ec5b103ecfde929004b691f29183255aeeadecd5.zip |
Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma
Pull slave-dmaengine updates from Vinod Koul:
"This pull brings:
- Andy's DW driver updates
- Guennadi's sh driver updates
- Pl08x driver fixes from Tomasz & Alban
- Improvements to mmp_pdma by Daniel
- TI EDMA fixes by Joel
- New drivers:
- Hisilicon k3dma driver
- Renesas rcar dma driver
- New API for publishing slave driver capablities
- Various fixes across the subsystem by Andy, Jingoo, Sachin etc..."
* 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (94 commits)
dma: edma: Remove limits on number of slots
dma: edma: Leave linked to Null slot instead of DUMMY slot
dma: edma: Find missed events and issue them
ARM: edma: Add function to manually trigger an EDMA channel
dma: edma: Write out and handle MAX_NR_SG at a given time
dma: edma: Setup parameters to DMA MAX_NR_SG at a time
dmaengine: pl330: use dma_set_max_seg_size to set the sg limit
dmaengine: dma_slave_caps: remove sg entries
dma: replace devm_request_and_ioremap by devm_ioremap_resource
dma: ste_dma40: Fix potential null pointer dereference
dma: ste_dma40: Remove duplicate const
dma: imx-dma: Remove redundant NULL check
dma: dmagengine: fix function names in comments
dma: add driver for R-Car HPB-DMAC
dma: k3dma: use devm_ioremap_resource() instead of devm_request_and_ioremap()
dma: imx-sdma: Staticize sdma_driver_data structures
pch_dma: Add MODULE_DEVICE_TABLE
dmaengine: PL08x: Add cyclic transfer support
dmaengine: PL08x: Fix reading the byte count in cctl
dmaengine: PL08x: Add support for different maximum transfer size
...
Diffstat (limited to 'drivers/dma/sh/shdma-base.c')
-rw-r--r-- | drivers/dma/sh/shdma-base.c | 26 |
1 files changed, 11 insertions, 15 deletions
diff --git a/drivers/dma/sh/shdma-base.c b/drivers/dma/sh/shdma-base.c index 28ca36121631..d94ab592cc1b 100644 --- a/drivers/dma/sh/shdma-base.c +++ b/drivers/dma/sh/shdma-base.c @@ -171,7 +171,8 @@ static struct shdma_desc *shdma_get_desc(struct shdma_chan *schan) return NULL; } -static int shdma_setup_slave(struct shdma_chan *schan, int slave_id) +static int shdma_setup_slave(struct shdma_chan *schan, int slave_id, + dma_addr_t slave_addr) { struct shdma_dev *sdev = to_shdma_dev(schan->dma_chan.device); const struct shdma_ops *ops = sdev->ops; @@ -179,7 +180,7 @@ static int shdma_setup_slave(struct shdma_chan *schan, int slave_id) if (schan->dev->of_node) { match = schan->hw_req; - ret = ops->set_slave(schan, match, true); + ret = ops->set_slave(schan, match, slave_addr, true); if (ret < 0) return ret; @@ -194,7 +195,7 @@ static int shdma_setup_slave(struct shdma_chan *schan, int slave_id) if (test_and_set_bit(slave_id, shdma_slave_used)) return -EBUSY; - ret = ops->set_slave(schan, match, false); + ret = ops->set_slave(schan, match, slave_addr, false); if (ret < 0) { clear_bit(slave_id, shdma_slave_used); return ret; @@ -236,7 +237,7 @@ bool shdma_chan_filter(struct dma_chan *chan, void *arg) if (!schan->dev->of_node && match >= slave_num) return false; - ret = ops->set_slave(schan, match, true); + ret = ops->set_slave(schan, match, 0, true); if (ret < 0) return false; @@ -259,7 +260,7 @@ static int shdma_alloc_chan_resources(struct dma_chan *chan) */ if (slave) { /* Legacy mode: .private is set in filter */ - ret = shdma_setup_slave(schan, slave->slave_id); + ret = shdma_setup_slave(schan, slave->slave_id, 0); if (ret < 0) goto esetslave; } else { @@ -680,7 +681,9 @@ static int shdma_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, * channel, while using it... */ config = (struct dma_slave_config *)arg; - ret = shdma_setup_slave(schan, config->slave_id); + ret = shdma_setup_slave(schan, config->slave_id, + config->direction == DMA_DEV_TO_MEM ? + config->src_addr : config->dst_addr); if (ret < 0) return ret; break; @@ -831,8 +834,8 @@ static irqreturn_t chan_irqt(int irq, void *dev) int shdma_request_irq(struct shdma_chan *schan, int irq, unsigned long flags, const char *name) { - int ret = request_threaded_irq(irq, chan_irq, chan_irqt, - flags, name, schan); + int ret = devm_request_threaded_irq(schan->dev, irq, chan_irq, + chan_irqt, flags, name, schan); schan->irq = ret < 0 ? ret : irq; @@ -840,13 +843,6 @@ int shdma_request_irq(struct shdma_chan *schan, int irq, } EXPORT_SYMBOL(shdma_request_irq); -void shdma_free_irq(struct shdma_chan *schan) -{ - if (schan->irq >= 0) - free_irq(schan->irq, schan); -} -EXPORT_SYMBOL(shdma_free_irq); - void shdma_chan_probe(struct shdma_dev *sdev, struct shdma_chan *schan, int id) { |