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

Judith Mendez posted 1 patch 2 months ago
There is a newer version of this series
drivers/clocksource/timer-ti-dm.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
[PATCH] clocksource/drivers/timer-ti-dm: Don't fail probe if int not found
Posted by Judith Mendez 2 months ago
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.

Signed-off-by: Judith Mendez <jm@ti.com>
---
 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))
-- 
2.46.0