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Subject[PATCH v2 2/3] mmc: omap_hsmmc: Skip platform_get_resource_byname() for dt case
Date
From: Santosh Shilimkar <santosh.shilimkar@ti.com>

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

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

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
---
drivers/mmc/host/omap_hsmmc.c | 28 +++++++++++++++-------------
1 file changed, 15 insertions(+), 13 deletions(-)

diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index e79b12d..8ae1225 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -1896,21 +1896,23 @@ 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);
--
1.7.9.5


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