diff mbox series

[v2] gpio: tegra186: Check PMC driver status before any request

Message ID 20221026070614.24446-1-pshete@nvidia.com
State New
Headers
Series [v2] gpio: tegra186: Check PMC driver status before any request |

Commit Message

Prathamesh Shete Oct. 26, 2022, 7:06 a.m. UTC 
  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@nvidia.com>
Signed-off-by: Prathamesh Shete <pshete@nvidia.com>
---
 drivers/gpio/gpio-tegra186.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

Comments

Linus Walleij Nov. 8, 2022, 10:34 a.m. UTC | #1 
On Wed, Oct 26, 2022 at 9:06 AM Prathamesh Shete <pshete@nvidia.com> wrote:

> 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@nvidia.com>
> Signed-off-by: Prathamesh Shete <pshete@nvidia.com>

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

Yours,
Linus Walleij
Thierry Reding Nov. 8, 2022, 1:29 p.m. UTC | #2 
On Wed, Oct 26, 2022 at 12:36:14PM +0530, Prathamesh Shete wrote:
> 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@nvidia.com>
> Signed-off-by: Prathamesh Shete <pshete@nvidia.com>
> ---
>  drivers/gpio/gpio-tegra186.c | 14 +++++++++-----
>  1 file changed, 9 insertions(+), 5 deletions(-)

Acked-by: Thierry Reding <treding@nvidia.com>
diff mbox series

Patch

diff --git a/drivers/gpio/gpio-tegra186.c b/drivers/gpio/gpio-tegra186.c
index 54d9fa7da9c1..b99756037ed4 100644
--- a/drivers/gpio/gpio-tegra186.c
+++ b/drivers/gpio/gpio-tegra186.c
@@ -896,11 +896,15 @@  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,