[PATCH v2 4/5] mmc: davinci: don't use dma platform resources

From: David Lechner
Date: Mon Mar 14 2016 - 18:56:47 EST


The davinci arch now has dma_slave_map tables for dma resources, so it is
no longer necessary to pass dma resources through the platform device.

Signed-off-by: David Lechner <david@xxxxxxxxxxxxxx>
---

v2 changes: Remove platform_get_resource completly instead of just ignoring it.


drivers/mmc/host/davinci_mmc.c | 19 ++-----------------
1 file changed, 2 insertions(+), 17 deletions(-)

diff --git a/drivers/mmc/host/davinci_mmc.c b/drivers/mmc/host/davinci_mmc.c
index 8d10a92..dc96401 100644
--- a/drivers/mmc/host/davinci_mmc.c
+++ b/drivers/mmc/host/davinci_mmc.c
@@ -202,7 +202,6 @@ struct mmc_davinci_host {
u32 buffer_bytes_left;
u32 bytes_left;

- u32 rxdma, txdma;
struct dma_chan *dma_tx;
struct dma_chan *dma_rx;
bool use_dma;
@@ -520,16 +519,14 @@ static int __init davinci_acquire_dma_channels(struct mmc_davinci_host *host)
dma_cap_set(DMA_SLAVE, mask);

host->dma_tx =
- dma_request_slave_channel_compat(mask, edma_filter_fn,
- &host->txdma, mmc_dev(host->mmc), "tx");
+ dma_request_slave_channel(mmc_dev(host->mmc), "tx");
if (!host->dma_tx) {
dev_err(mmc_dev(host->mmc), "Can't get dma_tx channel\n");
return -ENODEV;
}

host->dma_rx =
- dma_request_slave_channel_compat(mask, edma_filter_fn,
- &host->rxdma, mmc_dev(host->mmc), "rx");
+ dma_request_slave_channel(mmc_dev(host->mmc), "rx");
if (!host->dma_rx) {
dev_err(mmc_dev(host->mmc), "Can't get dma_rx channel\n");
r = -ENODEV;
@@ -1251,18 +1248,6 @@ static int __init davinci_mmcsd_probe(struct platform_device *pdev)
host = mmc_priv(mmc);
host->mmc = mmc; /* Important */

- r = platform_get_resource(pdev, IORESOURCE_DMA, 0);
- if (!r)
- dev_warn(&pdev->dev, "RX DMA resource not specified\n");
- else
- host->rxdma = r->start;
-
- r = platform_get_resource(pdev, IORESOURCE_DMA, 1);
- if (!r)
- dev_warn(&pdev->dev, "TX DMA resource not specified\n");
- else
- host->txdma = r->start;
-
host->mem_res = mem;
host->base = devm_ioremap(&pdev->dev, mem->start, mem_size);
if (!host->base)
--
1.9.1