Commit 2a6fc3cb authored Jul 05, 2019 by Dmitry Osipenko Committed by Thierry Reding Jul 25, 2019

drm/tegra: Fix gpiod_get_from_of_node() regression



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: 025bf377 ("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>

parent 5f9e832c

drivers/gpu/drm/tegra/output.c

+6 −2

Original line number	Diff line number	Diff line
		@@ -126,9 +126,13 @@ int tegra_output_probe(struct tegra_output *output)
		"nvidia,hpd-gpio", 0,
		GPIOD_IN,
		"HDMI hotplug detect");
		if (IS_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);
		if (err < 0) {

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