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mmc: omap_hsmmc: Skip platform_get_resource_byname() for dt case

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MMC driver probe will abort for DT case because of failed
platform_get_resource_byname() lookup. Fix it by skipping resource
lookup byname for device tree build.

Issue is hidden because hwmod populates the IO resources which
helps to succeed platform_get_resource_byname() and probe.

Signed-off-by: Santosh Shilimkar <[email protected]>
Signed-off-by: Balaji T K <[email protected]>
Signed-off-by: Chris Ball <[email protected]>
This commit is contained in:
Santosh Shilimkar 2013-05-10 17:42:35 +05:30 • committed by Chris Ball
commit 4a29b5591f
1 changed files with 15 additions and 13 deletions
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28
drivers/mmc/host/omap_hsmmc.c
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@ -1911,21 +1911,23 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
omap_hsmmc_conf_bus_power(host);
res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "tx");
if (!res) {
dev_err(mmc_dev(host->mmc), "cannot get DMA TX channel\n");
ret = -ENXIO;
goto err_irq;
}
tx_req = res->start;
if (!pdev->dev.of_node) {
res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "tx");
if (!res) {
dev_err(mmc_dev(host->mmc), "cannot get DMA TX channel\n");
ret = -ENXIO;
goto err_irq;
}
tx_req = res->start;
res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "rx");
if (!res) {
dev_err(mmc_dev(host->mmc), "cannot get DMA RX channel\n");
ret = -ENXIO;
goto err_irq;
res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "rx");
if (!res) {
dev_err(mmc_dev(host->mmc), "cannot get DMA RX channel\n");
ret = -ENXIO;
goto err_irq;
}
rx_req = res->start;
}
rx_req = res->start;
dma_cap_zero(mask);
dma_cap_set(DMA_SLAVE, mask);