diff options
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/cppi41.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/drivers/dma/cppi41.c b/drivers/dma/cppi41.c index d74cee077842..34a8156eef06 100644 --- a/drivers/dma/cppi41.c +++ b/drivers/dma/cppi41.c @@ -131,7 +131,6 @@ struct cppi41_dd { u32 first_td_desc; struct cppi41_channel *chan_busy[ALLOC_DECS_NUM]; - void __iomem *usbss_mem; void __iomem *ctrl_mem; void __iomem *sched_mem; void __iomem *qmgr_mem; @@ -995,6 +994,7 @@ static int cppi41_dma_probe(struct platform_device *pdev) struct cppi41_dd *cdd; struct device *dev = &pdev->dev; const struct cppi_glue_infos *glue_info; + int index; int irq; int ret; @@ -1021,16 +1021,20 @@ static int cppi41_dma_probe(struct platform_device *pdev) INIT_LIST_HEAD(&cdd->ddev.channels); cpp41_dma_info.dma_cap = cdd->ddev.cap_mask; - cdd->usbss_mem = of_iomap(dev->of_node, 0); - cdd->ctrl_mem = of_iomap(dev->of_node, 1); - cdd->sched_mem = of_iomap(dev->of_node, 2); - cdd->qmgr_mem = of_iomap(dev->of_node, 3); + index = of_property_match_string(dev->of_node, + "reg-names", "controller"); + if (index < 0) + return index; + + cdd->ctrl_mem = of_iomap(dev->of_node, index); + cdd->sched_mem = of_iomap(dev->of_node, index + 1); + cdd->qmgr_mem = of_iomap(dev->of_node, index + 2); spin_lock_init(&cdd->lock); INIT_LIST_HEAD(&cdd->pending); platform_set_drvdata(pdev, cdd); - if (!cdd->usbss_mem || !cdd->ctrl_mem || !cdd->sched_mem || + if (!cdd->ctrl_mem || !cdd->sched_mem || !cdd->qmgr_mem) return -ENXIO; @@ -1090,7 +1094,6 @@ err_init_cppi: err_get_sync: pm_runtime_put_sync(dev); pm_runtime_disable(dev); - iounmap(cdd->usbss_mem); iounmap(cdd->ctrl_mem); iounmap(cdd->sched_mem); iounmap(cdd->qmgr_mem); @@ -1112,7 +1115,6 @@ static int cppi41_dma_remove(struct platform_device *pdev) devm_free_irq(&pdev->dev, cdd->irq, cdd); cleanup_chans(cdd); deinit_cppi41(&pdev->dev, cdd); - iounmap(cdd->usbss_mem); iounmap(cdd->ctrl_mem); iounmap(cdd->sched_mem); iounmap(cdd->qmgr_mem); |