[PATCH] ARM: edma: Clean up and simplify the code around irq request

From: Peter Ujfalusi
Date: Tue May 13 2014 - 03:26:47 EST


Get the two interrupt line number at the same time by merging the two
instance of if(node){}else{} places.
replace the &pdev->dev with the already existing dev which makes it possible
to collapse lines with devm_request_irq()

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx>
---
arch/arm/common/edma.c | 26 ++++++++++++--------------
1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/arch/arm/common/edma.c b/arch/arm/common/edma.c
index db2d9dc62d33..fade9ada81f8 100644
--- a/arch/arm/common/edma.c
+++ b/arch/arm/common/edma.c
@@ -1596,7 +1596,6 @@ static int edma_probe(struct platform_device *pdev)
struct resource *r[EDMA_MAX_CC] = {NULL};
struct resource res[EDMA_MAX_CC];
char res_name[10];
- char irq_name[10];
struct device_node *node = pdev->dev.of_node;
struct device *dev = &pdev->dev;
int ret;
@@ -1718,14 +1717,21 @@ static int edma_probe(struct platform_device *pdev)

if (node) {
irq[j] = irq_of_parse_and_map(node, 0);
+ err_irq[j] = irq_of_parse_and_map(node, 2);
} else {
+ char irq_name[10];
+
sprintf(irq_name, "edma%d", j);
irq[j] = platform_get_irq_byname(pdev, irq_name);
+
+ sprintf(irq_name, "edma%d_err", j);
+ err_irq[j] = platform_get_irq_byname(pdev, irq_name);
}
edma_cc[j]->irq_res_start = irq[j];
- status = devm_request_irq(&pdev->dev, irq[j],
- dma_irq_handler, 0, "edma",
- &pdev->dev);
+ edma_cc[j]->irq_res_end = err_irq[j];
+
+ status = devm_request_irq(dev, irq[j], dma_irq_handler, 0,
+ "edma", dev);
if (status < 0) {
dev_dbg(&pdev->dev,
"devm_request_irq %d failed --> %d\n",
@@ -1733,16 +1739,8 @@ static int edma_probe(struct platform_device *pdev)
return status;
}

- if (node) {
- err_irq[j] = irq_of_parse_and_map(node, 2);
- } else {
- sprintf(irq_name, "edma%d_err", j);
- err_irq[j] = platform_get_irq_byname(pdev, irq_name);
- }
- edma_cc[j]->irq_res_end = err_irq[j];
- status = devm_request_irq(&pdev->dev, err_irq[j],
- dma_ccerr_handler, 0,
- "edma_error", &pdev->dev);
+ status = devm_request_irq(dev, err_irq[j], dma_ccerr_handler, 0,
+ "edma_error", dev);
if (status < 0) {
dev_dbg(&pdev->dev,
"devm_request_irq %d failed --> %d\n",
--
1.9.3

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