fsldma: remove unused structure members
Remove some unused members from the fsldma data structures. A few trivial uses of struct resource were converted to use the stack rather than keeping the memory allocated for the lifetime of the driver. Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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@ -1072,6 +1072,7 @@ static int __devinit fsl_dma_chan_probe(struct fsl_dma_device *fdev,
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struct device_node *node, u32 feature, const char *compatible)
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{
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struct fsl_dma_chan *new_fsl_chan;
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struct resource res;
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int err;
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/* alloc channel */
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@ -1083,7 +1084,7 @@ static int __devinit fsl_dma_chan_probe(struct fsl_dma_device *fdev,
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}
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/* get dma channel register base */
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err = of_address_to_resource(node, 0, &new_fsl_chan->reg);
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err = of_address_to_resource(node, 0, &res);
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if (err) {
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dev_err(fdev->dev, "Can't get %s property 'reg'\n",
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node->full_name);
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@ -1101,10 +1102,8 @@ static int __devinit fsl_dma_chan_probe(struct fsl_dma_device *fdev,
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WARN_ON(fdev->feature != new_fsl_chan->feature);
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new_fsl_chan->dev = fdev->dev;
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new_fsl_chan->reg_base = ioremap(new_fsl_chan->reg.start,
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new_fsl_chan->reg.end - new_fsl_chan->reg.start + 1);
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new_fsl_chan->id = ((new_fsl_chan->reg.start - 0x100) & 0xfff) >> 7;
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new_fsl_chan->reg_base = ioremap(res.start, resource_size(&res));
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new_fsl_chan->id = ((res.start - 0x100) & 0xfff) >> 7;
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if (new_fsl_chan->id >= FSL_DMA_MAX_CHANS_PER_DEVICE) {
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dev_err(fdev->dev, "There is no %d channel!\n",
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new_fsl_chan->id);
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@ -1183,6 +1182,7 @@ static int __devinit of_fsl_dma_probe(struct of_device *dev,
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int err;
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struct fsl_dma_device *fdev;
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struct device_node *child;
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struct resource res;
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fdev = kzalloc(sizeof(struct fsl_dma_device), GFP_KERNEL);
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if (!fdev) {
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@ -1193,7 +1193,7 @@ static int __devinit of_fsl_dma_probe(struct of_device *dev,
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INIT_LIST_HEAD(&fdev->common.channels);
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/* get DMA controller register base */
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err = of_address_to_resource(dev->node, 0, &fdev->reg);
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err = of_address_to_resource(dev->node, 0, &res);
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if (err) {
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dev_err(&dev->dev, "Can't get %s property 'reg'\n",
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dev->node->full_name);
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@ -1202,9 +1202,8 @@ static int __devinit of_fsl_dma_probe(struct of_device *dev,
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dev_info(&dev->dev, "Probe the Freescale DMA driver for %s "
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"controller at 0x%llx...\n",
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match->compatible, (unsigned long long)fdev->reg.start);
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fdev->reg_base = ioremap(fdev->reg.start, fdev->reg.end
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- fdev->reg.start + 1);
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match->compatible, (unsigned long long)res.start);
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fdev->reg_base = ioremap(res.start, resource_size(&res));
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dma_cap_set(DMA_MEMCPY, fdev->common.cap_mask);
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dma_cap_set(DMA_INTERRUPT, fdev->common.cap_mask);
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@ -92,8 +92,6 @@ struct fsl_desc_sw {
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struct list_head node;
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struct list_head tx_list;
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struct dma_async_tx_descriptor async_tx;
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struct list_head *ld;
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void *priv;
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} __attribute__((aligned(32)));
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struct fsl_dma_chan_regs {
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@ -111,7 +109,6 @@ struct fsl_dma_chan;
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struct fsl_dma_device {
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void __iomem *reg_base; /* DGSR register base */
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struct resource reg; /* Resource for register */
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struct device *dev;
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struct dma_device common;
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struct fsl_dma_chan *chan[FSL_DMA_MAX_CHANS_PER_DEVICE];
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@ -138,7 +135,6 @@ struct fsl_dma_chan {
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struct dma_chan common; /* DMA common channel */
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struct dma_pool *desc_pool; /* Descriptors pool */
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struct device *dev; /* Channel device */
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struct resource reg; /* Resource for register */
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int irq; /* Channel IRQ */
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int id; /* Raw id of this channel */
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struct tasklet_struct tasklet;
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