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drm/panel: ls037v7dw01: 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, 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/20210916104612.11516-1-caihuoqing@baidu.com
This commit is contained in:
Cai Huoqing 2021-09-16 18:46:11 +08:00 committed by Sam Ravnborg
parent a30fc787a1
commit ef41af47e4
1 changed files with 9 additions and 12 deletions
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21
drivers/gpu/drm/panel/panel-sharp-ls037v7dw01.c
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@ -146,22 +146,19 @@ static int ls037v7dw01_probe(struct platform_device *pdev)
lcd->pdev = pdev;
lcd->vdd = devm_regulator_get(&pdev->dev, "envdd");
if (IS_ERR(lcd->vdd)) {
dev_err(&pdev->dev, "failed to get regulator\n");
return PTR_ERR(lcd->vdd);
}
if (IS_ERR(lcd->vdd))
return dev_err_probe(&pdev->dev, PTR_ERR(lcd->vdd),
"failed to get regulator\n");
lcd->ini_gpio = devm_gpiod_get(&pdev->dev, "enable", GPIOD_OUT_LOW);
if (IS_ERR(lcd->ini_gpio)) {
dev_err(&pdev->dev, "failed to get enable gpio\n");
return PTR_ERR(lcd->ini_gpio);
}
if (IS_ERR(lcd->ini_gpio))
return dev_err_probe(&pdev->dev, PTR_ERR(lcd->ini_gpio),
"failed to get enable gpio\n");
lcd->resb_gpio = devm_gpiod_get(&pdev->dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(lcd->resb_gpio)) {
dev_err(&pdev->dev, "failed to get reset gpio\n");
return PTR_ERR(lcd->resb_gpio);
}
if (IS_ERR(lcd->resb_gpio))
return dev_err_probe(&pdev->dev, PTR_ERR(lcd->resb_gpio),
"failed to get reset gpio\n");
lcd->mo_gpio = devm_gpiod_get_index(&pdev->dev, "mode", 0,
GPIOD_OUT_LOW);