[PATCH RESEND] clocksource/drivers/timer-ti-dm: Don't fail probe if int not found

[Judith Mendez <jm@ti.com>]

Some timers may not have an interrupt routed to
the A53 GIC, but the timer PWM functionality can still
be used by Linux Kernel. Therefore, do not fail probe
if interrupt is not found and ti,timer-pwm exists.

Fixes: df28472a1b28 ("ARM: OMAP: dmtimer: platform driver")
Signed-off-by: Judith Mendez <jm@ti.com>
---
Changes since v1:
- Rebased, add to CC list, add fixes tag
---
 drivers/clocksource/timer-ti-dm.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/clocksource/timer-ti-dm.c b/drivers/clocksource/timer-ti-dm.c
index b7a34b1a975e..1b61fefed213 100644
--- a/drivers/clocksource/timer-ti-dm.c
+++ b/drivers/clocksource/timer-ti-dm.c
@@ -1104,8 +1104,12 @@ static int omap_dm_timer_probe(struct platform_device *pdev)
 		return  -ENOMEM;
 
 	timer->irq = platform_get_irq(pdev, 0);
-	if (timer->irq < 0)
-		return timer->irq;
+	if (timer->irq < 0) {
+		if (of_property_read_bool(dev->of_node, "ti,timer-pwm"))
+			dev_err(dev, "Did not find timer interrupt, timer usable in PWM mode only\n");
+		else
+			return timer->irq;
+	}
 
 	timer->io_base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(timer->io_base))

base-commit: d3d1556696c1a993eec54ac585fe5bf677e07474
-- 
2.46.2