[PATCH v9 18/18] OMAP2,3: DSS2: Get DSS IRQ from platform device

[Sumit Semwal]

From: Senthilvadivu Guruswamy <svadivu at ti.com>

DSS IRQ number can be obtained from platform_get_irq().  This API in turn
picks the right IRQ number belonging to HW IP from the hwmod database.
So hardcoding of IRQ number could be removed.

Reviewed-by: Paul Walmsley <paul at pwsan.com>
Reviewed-by: Kevin Hilman <khilman at ti.com>
Tested-by: Kevin Hilman <khilman at ti.com>
Signed-off-by: Senthilvadivu Guruswamy <svadivu at ti.com>
Signed-off-by: Sumit Semwal <sumit.semwal at ti.com>
---
 drivers/video/omap2/dss/dss.c |   13 ++++++++-----
 1 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c
index 4d7a816..22690e9 100644
--- a/drivers/video/omap2/dss/dss.c
+++ b/drivers/video/omap2/dss/dss.c
@@ -563,7 +563,7 @@ void dss_set_dac_pwrdn_bgz(bool enable)
 
 static int dss_init(bool skip_init)
 {
-	int r;
+	int r, dss_irq;
 	u32 rev;
 	struct resource *dss_mem;
 
@@ -609,15 +609,18 @@ static int dss_init(bool skip_init)
 	REG_FLD_MOD(DSS_CONTROL, 0, 2, 2);	/* venc clock mode = normal */
 #endif
 
-	r = request_irq(INT_24XX_DSS_IRQ,
+	dss_irq = platform_get_irq(dss.pdev, 0);
+	if (dss_irq != -ENXIO) {
+		r = request_irq(dss_irq,
 			cpu_is_omap24xx()
 			? dss_irq_handler_omap2
 			: dss_irq_handler_omap3,
 			0, "OMAP DSS", NULL);
 
-	if (r < 0) {
-		DSSERR("omap2 dss: request_irq failed\n");
-		goto fail1;
+		if (r < 0) {
+			DSSERR("omap2 dss: request_irq failed\n");
+			goto fail1;
+		}
 	}
 
 	if (cpu_is_omap34xx()) {
-- 
1.7.1