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

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>
Link: https://lore.kernel.org/r/20241011175203.1040568-1-jm@ti.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

diff --git a/drivers/clocksource/timer-ti-dm.c b/drivers/clocksource/timer-ti-dm.c
index b7a34b1a975ec53f4f5d6e9b1b6f8bffbea9b267..3666d94cc8ddc5b2e9c967b1d0c7ae787b11861c 100644 (file)
--- 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_info(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))