mirrors/linux
2
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-07 15:07:13 -04:00
Code Issues Packages Projects Releases Wiki Activity

gpio: tegra186: Check PMC driver status before any request

Browse Source 
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>
This commit is contained in:
Prathamesh Shete
2023-06-07 17:01:04 +05:30
committed by Linus Walleij
parent 6d8257ca39
commit 5cc9525bfc
1 changed files with 8 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/gpio/gpio-tegra186.c
View File

@@ -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 (of_device_is_available(np)) {
irq->parent_domain = irq_find_host(np);
of_node_put(np);
if (!irq->parent_domain)
return -EPROBE_DEFER;
if (!irq->parent_domain)
return -EPROBE_DEFER;
} else {
of_node_put(np);
}
}
irq->map = devm_kcalloc(&pdev->dev, gpio->gpio.ngpio,