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drm/panel: ili9881c: 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/20210916104240.11217-1-caihuoqing@baidu.com
This commit is contained in:
Cai Huoqing 2021-09-16 18:42:39 +08:00 committed by Sam Ravnborg
parent 5ddc1e27e0
commit 386e1c180f
1 changed files with 6 additions and 8 deletions
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14
drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
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@ -653,16 +653,14 @@ static int ili9881c_dsi_probe(struct mipi_dsi_device *dsi)
DRM_MODE_CONNECTOR_DSI);
ctx->power = devm_regulator_get(&dsi->dev, "power");
if (IS_ERR(ctx->power)) {
dev_err(&dsi->dev, "Couldn't get our power regulator\n");
return PTR_ERR(ctx->power);
}
if (IS_ERR(ctx->power))
return dev_err_probe(&dsi->dev, PTR_ERR(ctx->power),
"Couldn't get our power regulator\n");
ctx->reset = devm_gpiod_get(&dsi->dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(ctx->reset)) {
dev_err(&dsi->dev, "Couldn't get our reset GPIO\n");
return PTR_ERR(ctx->reset);
}
if (IS_ERR(ctx->reset))
return dev_err_probe(&dsi->dev, PTR_ERR(ctx->reset),
"Couldn't get our reset GPIO\n");
ret = drm_panel_of_backlight(&ctx->panel);
if (ret)