From 69939eb84658f25f2300a34c3f7719ac05c86dec Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Thu, 11 May 2023 16:25:46 +0100 Subject: [PATCH] mmc: bcm2835: Use phys addresses for slave DMA config Contrary to what struct snd_dmaengine_dai_dma_data suggests, the configuration of addresses of DMA slave interfaces should be done in CPU physical addresses. Signed-off-by: Phil Elwell --- drivers/mmc/host/bcm2835.c | 17 +++-------------- 1 file changed, 3 insertions(+), 14 deletions(-) --- a/drivers/mmc/host/bcm2835.c +++ b/drivers/mmc/host/bcm2835.c @@ -38,7 +38,6 @@ #include #include #include -#include #include #include #include @@ -1355,8 +1354,8 @@ static int bcm2835_probe(struct platform struct device *dev = &pdev->dev; struct clk *clk; struct bcm2835_host *host; + struct resource *iomem; struct mmc_host *mmc; - const __be32 *regaddr_p; int ret; dev_dbg(dev, "%s\n", __func__); @@ -1369,23 +1368,13 @@ static int bcm2835_probe(struct platform host->pdev = pdev; spin_lock_init(&host->lock); - host->ioaddr = devm_platform_ioremap_resource(pdev, 0); + host->ioaddr = devm_platform_get_and_ioremap_resource(pdev, 0, &iomem); if (IS_ERR(host->ioaddr)) { ret = PTR_ERR(host->ioaddr); goto err; } - /* Parse OF address directly to get the physical address for - * DMA to our registers. - */ - regaddr_p = of_get_address(pdev->dev.of_node, 0, NULL, NULL); - if (!regaddr_p) { - dev_err(dev, "Can't get phys address\n"); - ret = -EINVAL; - goto err; - } - - host->phys_addr = be32_to_cpup(regaddr_p); + host->phys_addr = iomem->start; host->dma_chan = NULL; host->dma_desc = NULL;