[PATCH] gpio: tegra186: Check PMC driver status before any request

[Prathamesh Shete]

This patch fixes the issue where even if PMC driver status is
disabled still we are trying to look up for the IRQ domain
that PMC driver would've registered if it had been enabled.

Signed-off-by: Manish Bhardwaj <mbhardwaj@xxxxxxxxxx>
Signed-off-by: Prathamesh Shete <pshete@xxxxxxxxxx>
---
 drivers/gpio/gpio-tegra186.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/gpio/gpio-tegra186.c b/drivers/gpio/gpio-tegra186.c
index 464b0ea3b6f1..80d08ddde40e 100644
--- a/drivers/gpio/gpio-tegra186.c
+++ b/drivers/gpio/gpio-tegra186.c
@@ -964,11 +964,15 @@ static int tegra186_gpio_probe(struct platform_device *pdev)
 
 	np = of_find_matching_node(NULL, tegra186_pmc_of_match);
 	if (np) {
-		irq->parent_domain = irq_find_host(np);
-		of_node_put(np);
-
-		if (!irq->parent_domain)
-			return -EPROBE_DEFER;
+		if (of_device_is_available(np)) {
+			irq->parent_domain = irq_find_host(np);
+			of_node_put(np);
+
+			if (!irq->parent_domain)
+				return -EPROBE_DEFER;
+		} else {
+			of_node_put(np);
+		}
 	}
 
 	irq->map = devm_kcalloc(&pdev->dev, gpio->gpio.ngpio,
-- 
2.17.1