From: Fabio Estevam <festevam@gmail.com>
To: thierry.reding@gmail.com
Cc: Fabio Estevam <fabio.estevam@nxp.com>, dri-devel@lists.freedesktop.org
Subject: [PATCH] drm/panel: simple: Skip error message on deferred probe
Date: Fri, 30 Jun 2017 18:14:46 -0300 [thread overview]
Message-ID: <1498857286-10820-1-git-send-email-festevam@gmail.com> (raw)
From: Fabio Estevam <fabio.estevam@nxp.com>
When enable_gpio is provided via an I2C or SPI expander, it may not be
available when panel-simple probes leading to the following error:
panel-simple panel: failed to request GPIO: -517
As this error message is not very useful to the end user, skip printing
it in the case of deferred probe.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
---
drivers/gpu/drm/panel/panel-simple.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 474fa75..9469c4d 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -315,7 +315,8 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc)
GPIOD_OUT_LOW);
if (IS_ERR(panel->enable_gpio)) {
err = PTR_ERR(panel->enable_gpio);
- dev_err(dev, "failed to request GPIO: %d\n", err);
+ if (err != -EPROBE_DEFER)
+ dev_err(dev, "failed to request GPIO: %d\n", err);
return err;
}
--
2.7.4
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next reply other threads:[~2017-06-30 21:15 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-30 21:14 Fabio Estevam [this message]
2017-08-18 13:47 ` [PATCH] drm/panel: simple: Skip error message on deferred probe Thierry Reding
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