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Subject[RFC PATCH 1/9] drivers: dma: omap-dma: Avoid hard-coding of the dma-request channels
Date
The total number of dma-request channels is hard-coded. Instead read the
data from DT.

Signed-off-by: Sricharan R <r.sricharan@ti.com>
---
drivers/dma/omap-dma.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/dma/omap-dma.c b/drivers/dma/omap-dma.c
index 64ceca2..a0d6639 100644
--- a/drivers/dma/omap-dma.c
+++ b/drivers/dma/omap-dma.c
@@ -1093,6 +1093,7 @@ static int omap_dma_probe(struct platform_device *pdev)
struct omap_dmadev *od;
struct resource *res;
int rc, i, irq;
+ u32 reqs;

od = devm_kzalloc(&pdev->dev, sizeof(*od), GFP_KERNEL);
if (!od)
@@ -1126,7 +1127,9 @@ static int omap_dma_probe(struct platform_device *pdev)

tasklet_init(&od->task, omap_dma_sched, (unsigned long)od);

- for (i = 0; i < 127; i++) {
+ of_property_read_u32(pdev->dev.of_node, "#dma-requests", &reqs);
+
+ for (i = 0; i < reqs; i++) {
rc = omap_dma_chan_init(od, i);
if (rc) {
omap_dma_free(od);
--
1.7.9.5


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