mmc: omap_hsmmc: Skip platform_get_resource_byname() for dt case

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 <santosh.shilimkar@ti.com>
Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index dc89aead35a5de564036a515c09c43abfa7fa78c..eccedc7d06a4301169d24187edc1925fe4a49f87 100644 (file)
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -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);