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drm/panel: simple: Use dev_err_probe() to simplify code

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In the probe path, dev_err() can be replaced with dev_err_probe()
which will check if error code is -EPROBE_DEFER and prints the
error name. It also sets the defer probe reason which can be
checked later through debugfs.

Signed-off-by: Yuan Can <yuancan@huawei.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220929015503.17301-3-yuancan@huawei.com
This commit is contained in:
Yuan Can
2022-09-29 01:55:03 +00:00
committed by Douglas Anderson
parent b28d204a7c
commit c9b48b91e2
1 changed files with 3 additions and 6 deletions
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drivers/gpu/drm/panel/panel-simple.c
+3 -6
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@@ -575,12 +575,9 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc)
panel->enable_gpio = devm_gpiod_get_optional(dev, "enable",
GPIOD_OUT_LOW);
if (IS_ERR(panel->enable_gpio)) {
err = PTR_ERR(panel->enable_gpio);
if (err != -EPROBE_DEFER)
dev_err(dev, "failed to request GPIO: %d\n", err);
return err;
}
if (IS_ERR(panel->enable_gpio))
return dev_err_probe(dev, PTR_ERR(panel->enable_gpio),
"failed to request GPIO\n");
err = of_drm_get_panel_orientation(dev->of_node, &panel->orientation);
if (err) {