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mmc: pxamci: remove the dmaengine compat need 

As the pxa architecture switched towards the dmaengine slave map, the
old compatibility mechanism to acquire the dma requestor line number and
priority are not needed anymore.

This patch simplifies the dma resource acquisition, using the more
generic function dma_request_slave_channel().

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Robert Jarzmik 2018-06-17 19:02:07 +02:00
parent 88a0513cf6
commit 6b3348f9e6
1 changed files with 3 additions and 26 deletions
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29
drivers/mmc/host/pxamci.c
View File

@ -24,7 +24,6 @@
#include <linux/interrupt.h>
#include <linux/dmaengine.h>
#include <linux/dma-mapping.h>
#include <linux/dma/pxa-dma.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/mmc/host.h>
@ -637,10 +636,8 @@ static int pxamci_probe(struct platform_device *pdev)
{
struct mmc_host *mmc;
struct pxamci_host *host = NULL;
struct resource *r, *dmarx, *dmatx;
struct pxad_param param_rx, param_tx;
struct resource *r;
int ret, irq, gpio_cd = -1, gpio_ro = -1, gpio_power = -1;
dma_cap_mask_t mask;
ret = pxamci_of_init(pdev);
if (ret)
@ -739,34 +736,14 @@ static int pxamci_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, mmc);
if (!pdev->dev.of_node) {
dmarx = platform_get_resource(pdev, IORESOURCE_DMA, 0);
dmatx = platform_get_resource(pdev, IORESOURCE_DMA, 1);
if (!dmarx || !dmatx) {
ret = -ENXIO;
goto out;
}
param_rx.prio = PXAD_PRIO_LOWEST;
param_rx.drcmr = dmarx->start;
param_tx.prio = PXAD_PRIO_LOWEST;
param_tx.drcmr = dmatx->start;
}
dma_cap_zero(mask);
dma_cap_set(DMA_SLAVE, mask);
host->dma_chan_rx =
dma_request_slave_channel_compat(mask, pxad_filter_fn,
&param_rx, &pdev->dev, "rx");
host->dma_chan_rx = dma_request_slave_channel(&pdev->dev, "rx");
if (host->dma_chan_rx == NULL) {
dev_err(&pdev->dev, "unable to request rx dma channel\n");
ret = -ENODEV;
goto out;
}
host->dma_chan_tx =
dma_request_slave_channel_compat(mask, pxad_filter_fn,
&param_tx, &pdev->dev, "tx");
host->dma_chan_tx = dma_request_slave_channel(&pdev->dev, "tx");
if (host->dma_chan_tx == NULL) {
dev_err(&pdev->dev, "unable to request tx dma channel\n");
ret = -ENODEV;