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drm/tegra: Fix gpiod_get_from_of_node() regression

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That function now returns ERR_PTR instead of NULL if "hpd-gpio" is not
present in device-tree. The offending patch missed to adapt the Tegra's
DRM driver for the API change.

Fixes: 025bf37725 ("gpio: Fix return value mismatch of function gpiod_get_from_of_node()")
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Dmitry Osipenko 2019-07-05 18:11:39 +03:00 committed by Thierry Reding
parent 5f9e832c13
commit 2a6fc3cb5c
1 changed files with 6 additions and 2 deletions
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8
drivers/gpu/drm/tegra/output.c
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@ -126,8 +126,12 @@ int tegra_output_probe(struct tegra_output *output)
"nvidia,hpd-gpio", 0,
GPIOD_IN,
"HDMI hotplug detect");
if (IS_ERR(output->hpd_gpio))
return PTR_ERR(output->hpd_gpio);
if (IS_ERR(output->hpd_gpio)) {
if (PTR_ERR(output->hpd_gpio) != -ENOENT)
return PTR_ERR(output->hpd_gpio);
output->hpd_gpio = NULL;
}
if (output->hpd_gpio) {
err = gpiod_to_irq(output->hpd_gpio);