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drm/panel: ej030na: Make use of the helper function dev_err_probe()

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When possible use dev_err_probe help to properly deal with the
PROBE_DEFER error, the benefit is that DEFER issue will be logged
in the devices_deferred debugfs file.
And using dev_err_probe() can reduce code size, and the error value
gets printed.

Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210916104225.11111-1-caihuoqing@baidu.com
This commit is contained in:
Cai Huoqing 2021-09-16 18:42:24 +08:00 • committed by Sam Ravnborg
parent 7f44a1166c
commit 6b1a69bcb2
1 changed files with 6 additions and 8 deletions
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14
drivers/gpu/drm/panel/panel-innolux-ej030na.c
View file

@ -198,16 +198,14 @@ static int ej030na_probe(struct spi_device *spi)
return -EINVAL;
priv->supply = devm_regulator_get(dev, "power");
if (IS_ERR(priv->supply)) {
dev_err(dev, "Failed to get power supply\n");
return PTR_ERR(priv->supply);
}
if (IS_ERR(priv->supply))
return dev_err_probe(dev, PTR_ERR(priv->supply),
"Failed to get power supply\n");
priv->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(priv->reset_gpio)) {
dev_err(dev, "Failed to get reset GPIO\n");
return PTR_ERR(priv->reset_gpio);
}
if (IS_ERR(priv->reset_gpio))
return dev_err_probe(dev, PTR_ERR(priv->reset_gpio),
"Failed to get reset GPIO\n");
drm_panel_init(&priv->panel, dev, &ej030na_funcs,
DRM_MODE_CONNECTOR_DPI);