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SubjectRe: [PATCH v1] drm/tegra: Fix gpiod_get_from_of_node() regression
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On 05/07/2019 16:11, Dmitry Osipenko wrote:
> 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: 025bf37725f1 ("gpio: Fix return value mismatch of function gpiod_get_from_of_node()")
> Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
> ---
> drivers/gpu/drm/tegra/output.c | 8 ++++++--
> 1 file changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/tegra/output.c b/drivers/gpu/drm/tegra/output.c
> index 274cb955e2e1..471d33809cd4 100644
> --- a/drivers/gpu/drm/tegra/output.c
> +++ b/drivers/gpu/drm/tegra/output.c
> @@ -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)
> + output->hpd_gpio = NULL;
> + else
> + return PTR_ERR(output->hpd_gpio);
> + }
>
> if (output->hpd_gpio) {
> err = gpiod_to_irq(output->hpd_gpio);
>

Acked-by: Jon Hunter <jonathanh@nvidia.com>

Cheers
Jon

--
nvpublic

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