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dmaengine: edma: Add dummy driver skeleton for edma3-tptc
The eDMA3 TPTC does not need any software configuration, but it is a separate IP block in the SoC. In order the omap hwmod core to be able to handle the TPTC resources correctly in regards of PM we need to have a driver loaded for it. This patch will add a dummy driver skeleton without probe or remove callbacks provided. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Reported-by: Olof Johansson <olof@lixom.net> Tested-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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1 changed files with 19 additions and 0 deletions
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@ -269,6 +269,11 @@ static const struct of_device_id edma_of_ids[] = {
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{}
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};
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static const struct of_device_id edma_tptc_of_ids[] = {
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{ .compatible = "ti,edma3-tptc", },
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{}
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};
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static inline unsigned int edma_read(struct edma_cc *ecc, int offset)
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{
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return (unsigned int)__raw_readl(ecc->base + offset);
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@ -2399,6 +2404,13 @@ static struct platform_driver edma_driver = {
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},
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};
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static struct platform_driver edma_tptc_driver = {
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.driver = {
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.name = "edma3-tptc",
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.of_match_table = edma_tptc_of_ids,
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},
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};
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bool edma_filter_fn(struct dma_chan *chan, void *param)
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{
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bool match = false;
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@ -2418,6 +2430,12 @@ EXPORT_SYMBOL(edma_filter_fn);
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static int edma_init(void)
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{
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int ret;
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ret = platform_driver_register(&edma_tptc_driver);
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if (ret)
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return ret;
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return platform_driver_register(&edma_driver);
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}
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subsys_initcall(edma_init);
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@ -2425,6 +2443,7 @@ subsys_initcall(edma_init);
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static void __exit edma_exit(void)
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{
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platform_driver_unregister(&edma_driver);
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platform_driver_unregister(&edma_tptc_driver);
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}
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module_exit(edma_exit);
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