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authorPrathamesh Shete <pshete@nvidia.com>2023-06-07 14:31:04 +0300
committerLinus Walleij <linus.walleij@linaro.org>2023-06-09 10:18:11 +0300
commit5cc9525bfc8e32029d1339349d65873c42193b00 (patch)
treea121d5e3334c90ba4b26904d3048e04c28561aad /drivers/gpio/gpio-tegra186.c
parent6d8257ca39884a90bbb61e3441f7d578abc53bac (diff)
downloadlinux-5cc9525bfc8e32029d1339349d65873c42193b00.tar.xz
gpio: tegra186: Check PMC driver status before any request
When the PMC device is disabled, probing of the Tegra186 GPIO driver fails because the IRQ domain that is registered by the PMC driver is not found. The PMC IRQ domain is only used for wake-up and does not impact GPIO functionality in general. Therefore, if the PMC device is disabled, skip looking up the PMC IRQ domain to allow the GPIO driver to be probed. Signed-off-by: Manish Bhardwaj <mbhardwaj@nvidia.com> Signed-off-by: Prathamesh Shete <pshete@nvidia.com> Reviewed-by: Jon Hunter <jonathanh@nvidia.com> Acked-by: Thierry Reding <treding@nvidia.com> Link: https://lore.kernel.org/r/20230607113104.11761-1-pshete@nvidia.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/gpio-tegra186.c')
-rw-r--r--drivers/gpio/gpio-tegra186.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/gpio/gpio-tegra186.c b/drivers/gpio/gpio-tegra186.c
index b904de0b1784..ea13a904af74 100644
--- a/drivers/gpio/gpio-tegra186.c
+++ b/drivers/gpio/gpio-tegra186.c
@@ -894,11 +894,15 @@ 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,