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>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1498857286-10820-1-git-send-email-festevam@gmail.com
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;
}