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dma: tegra: assume CONFIG_OF 

Tegra only supports, and always enables, device tree. Remove all ifdefs
and runtime checks for DT support from the driver.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Stephen Warren 2013-03-11 16:30:26 -06:00 committed by Vinod Koul
parent bcc7fa9547
commit dc7badba19
1 changed files with 7 additions and 15 deletions
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22
drivers/dma/tegra20-apb-dma.c
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@ -1213,7 +1213,6 @@ static const struct tegra_dma_chip_data tegra20_dma_chip_data = {
.support_channel_pause = false,
};
#if defined(CONFIG_OF)
/* Tegra30 specific DMA controller information */
static const struct tegra_dma_chip_data tegra30_dma_chip_data = {
.nr_channels = 32,
@ -1243,7 +1242,6 @@ static const struct of_device_id tegra_dma_of_match[] = {
},
};
MODULE_DEVICE_TABLE(of, tegra_dma_of_match);
#endif
static int tegra_dma_probe(struct platform_device *pdev)
{
@ -1252,20 +1250,14 @@ static int tegra_dma_probe(struct platform_device *pdev)
int ret;
int i;
const struct tegra_dma_chip_data *cdata = NULL;
const struct of_device_id *match;
if (pdev->dev.of_node) {
const struct of_device_id *match;
match = of_match_device(of_match_ptr(tegra_dma_of_match),
&pdev->dev);
if (!match) {
dev_err(&pdev->dev, "Error: No device match found\n");
return -ENODEV;
}
cdata = match->data;
} else {
/* If no device tree then fallback to tegra20 */
cdata = &tegra20_dma_chip_data;
match = of_match_device(tegra_dma_of_match, &pdev->dev);
if (!match) {
dev_err(&pdev->dev, "Error: No device match found\n");
return -ENODEV;
}
cdata = match->data;
tdma = devm_kzalloc(&pdev->dev, sizeof(*tdma) + cdata->nr_channels *
sizeof(struct tegra_dma_channel), GFP_KERNEL);
@ -1460,7 +1452,7 @@ static struct platform_driver tegra_dmac_driver = {
.name = "tegra-apbdma",
.owner = THIS_MODULE,
.pm = &tegra_dma_dev_pm_ops,
.of_match_table = of_match_ptr(tegra_dma_of_match),
.of_match_table = tegra_dma_of_match,
},
.probe = tegra_dma_probe,
.remove = tegra_dma_remove,