From: Dmitry Osipenko <digetx@gmail.com>
To: Thierry Reding <thierry.reding@gmail.com>,
Jonathan Hunter <jonathanh@nvidia.com>
Cc: dri-devel@lists.freedesktop.org, linux-tegra@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH v1] drm/tegra: Fix gpiod_get_from_of_node() regression
Date: Fri, 5 Jul 2019 18:11:39 +0300 [thread overview]
Message-ID: <20190705151139.19032-1-digetx@gmail.com> (raw)
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);
--
2.22.0
next reply other threads:[~2019-07-05 15:11 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-05 15:11 Dmitry Osipenko [this message]
2019-07-09 16:27 ` [PATCH v1] drm/tegra: Fix gpiod_get_from_of_node() regression Jon Hunter
2019-07-09 21:04 ` Dmitry Osipenko
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