Add warnings in case the edma engine driver fails to allocate slots or
channels requested from the davinci_mmc driver.
Some ti-davinci based boards (i.e. board-da850-evm.c) are asking for
some reserved chans / slots at board init stage. Later, the mmc driver
results in a silent locked state.
Signed-off-by: Angelo Dureghello <angelo <at> sysam.it>
diff --git a/drivers/mmc/host/davinci_mmc.c b/drivers/mmc/host/davinci_mmc.c
index 5d4c5e0..65d4990 100644
--- a/drivers/mmc/host/davinci_mmc.c
+++ b/drivers/mmc/host/davinci_mmc.c
@@ -439,8 +439,8 @@ static int mmc_davinci_send_dma_request(struct
mmc_davinci_host *host,
DMA_MEM_TO_DEV,
DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
if (!desc) {
- dev_dbg(mmc_dev(host->mmc),
- "failed to allocate DMA TX descriptor");
+ WARN(1, KERN_WARNING
+ "failed to allocate DMA TX descriptor\n");
ret = -1;
goto out;
}
@@ -461,8 +461,8 @@ static int mmc_davinci_send_dma_request(struct
mmc_davinci_host *host,
DMA_DEV_TO_MEM,
DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
if (!desc) {
- dev_dbg(mmc_dev(host->mmc),
- "failed to allocate DMA RX descriptor");
+ WARN(1, KERN_WARNING
+ "failed to allocate DMA RX descriptor\n");
ret = -1;
goto out;
}
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