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mmc: bcm2835: Use phys addresses for slave DMA config

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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 <phil@raspberrypi.com>
This commit is contained in:
Phil Elwell
2023-05-11 16:25:46 +01:00
committed by Dom Cobley
parent ad29001d29
commit 1b105f027f
1 changed files with 3 additions and 14 deletions
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17
drivers/mmc/host/bcm2835.c
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@@ -38,7 +38,6 @@
#include <linux/io.h>
#include <linux/iopoll.h>
#include <linux/module.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <linux/platform_device.h>
#include <linux/scatterlist.h>
@@ -1367,8 +1366,8 @@ static int bcm2835_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct bcm2835_host *host;
struct resource *iomem;
struct mmc_host *mmc;
const __be32 *regaddr_p;
int ret;
dev_dbg(dev, "%s\n", __func__);
@@ -1381,23 +1380,13 @@ static int bcm2835_probe(struct platform_device *pdev)
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;