linux-kernel - [GIT PULL 07/10] intel_th: Pick up irq number from resources

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Date:   Thu, 29 Mar 2018 14:14:15 +0300
From:   Alexander Shishkin <alexander.shishkin@...ux.intel.com>
To:     Greg KH <greg@...ah.com>
Cc:     Mathieu Poirier <mathieu.poirier@...aro.org>,
        Chunyan Zhang <zhang.chunyan@...aro.org>,
        linux-kernel@...r.kernel.org,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Subject: [GIT PULL 07/10] intel_th: Pick up irq number from resources

Platform devices pass their IRQs around as resources, so as a convenience
for the glue layer code, allow them pass the IRQ to the core driver in
the resources array.

Signed-off-by: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
---
 drivers/hwtracing/intel_th/core.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/hwtracing/intel_th/core.c b/drivers/hwtracing/intel_th/core.c
index d295b221e0bc..8f820c182240 100644
--- a/drivers/hwtracing/intel_th/core.c
+++ b/drivers/hwtracing/intel_th/core.c
@@ -805,7 +805,14 @@ intel_th_alloc(struct device *dev, struct intel_th_drvdata *drvdata,
 	       struct resource *devres, unsigned int ndevres, int irq)
 {
 	struct intel_th *th;
-	int err;
+	int err, r;
+
+	if (irq == -1)
+		for (r = 0; r < ndevres; r++)
+			if (devres[r].flags & IORESOURCE_IRQ) {
+				irq = devres[r].start;
+				break;
+			}
 
 	th = kzalloc(sizeof(*th), GFP_KERNEL);
 	if (!th)
-- 
2.16.2