[PATCH v10 18/18] OMAP2,3: DSS2: Get DSS IRQ from platform device

[Sumit Semwal <sumit.semwal@ti.com>]

From: Senthilvadivu Guruswamy <svadivu@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@pwsan.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Tested-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Senthilvadivu Guruswamy <svadivu@ti.com>
Signed-off-by: Sumit Semwal <sumit.semwal@ti.com>
---
 drivers/video/omap2/dss/dss.c |   21 ++++++++++++++-------
 1 files changed, 14 insertions(+), 7 deletions(-)

diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c
index 4d7a816..f9390b4 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;
 
@@ -609,11 +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,
-			cpu_is_omap24xx()
-			? dss_irq_handler_omap2
-			: dss_irq_handler_omap3,
-			0, "OMAP DSS", NULL);
+	dss_irq = platform_get_irq(dss.pdev, 0);
+	if (dss_irq < 0) {
+		DSSERR("omap2 dss: platform_get_irq failed\n");
+		r = -ENODEV;
+		goto fail1;
+	}
+
+	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");
@@ -641,7 +648,7 @@ static int dss_init(bool skip_init)
 	return 0;
 
 fail2:
-	free_irq(INT_24XX_DSS_IRQ, NULL);
+	free_irq(dss_irq, NULL);
 fail1:
 	iounmap(dss.base);
 fail0:
-- 
1.7.1