diff options
| author | Cai Huoqing <caihuoqing@baidu.com> | 2021-09-16 18:46:19 +0800 |
|---|---|---|
| committer | Sam Ravnborg <sam@ravnborg.org> | 2021-10-14 22:10:30 +0200 |
| commit | d41af761dbc137051ffe82fe4f23db54ebb1d523 (patch) | |
| tree | 176402a8be2043e597c16733f765213fd334ddbd | |
| parent | ef41af47e40ed69e439cfedf74068bf797c62fd1 (diff) | |
| download | linux-d41af761dbc137051ffe82fe4f23db54ebb1d523.tar.bz2 | |
drm/panel: nt39016: Make use of the helper function dev_err_probe()
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/20210916104620.11569-1-caihuoqing@baidu.com
| -rw-r--r-- | drivers/gpu/drm/panel/panel-novatek-nt39016.c | 20 |
1 files changed, 7 insertions, 13 deletions
diff --git a/drivers/gpu/drm/panel/panel-novatek-nt39016.c b/drivers/gpu/drm/panel/panel-novatek-nt39016.c index f8151fe3ac9a..d036853db865 100644 --- a/drivers/gpu/drm/panel/panel-novatek-nt39016.c +++ b/drivers/gpu/drm/panel/panel-novatek-nt39016.c @@ -258,16 +258,13 @@ static int nt39016_probe(struct spi_device *spi) return -EINVAL; panel->supply = devm_regulator_get(dev, "power"); - if (IS_ERR(panel->supply)) { - dev_err(dev, "Failed to get power supply\n"); - return PTR_ERR(panel->supply); - } + if (IS_ERR(panel->supply)) + return dev_err_probe(dev, PTR_ERR(panel->supply), + "Failed to get power supply\n"); panel->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); - if (IS_ERR(panel->reset_gpio)) { - dev_err(dev, "Failed to get reset GPIO\n"); - return PTR_ERR(panel->reset_gpio); - } + if (IS_ERR(panel->reset_gpio)) + return dev_err_probe(dev, PTR_ERR(panel->reset_gpio), "Failed to get reset GPIO\n"); spi->bits_per_word = 8; spi->mode = SPI_MODE_3 | SPI_3WIRE; @@ -287,11 +284,8 @@ static int nt39016_probe(struct spi_device *spi) DRM_MODE_CONNECTOR_DPI); err = drm_panel_of_backlight(&panel->drm_panel); - if (err) { - if (err != -EPROBE_DEFER) - dev_err(dev, "Failed to get backlight handle\n"); - return err; - } + if (err) + return dev_err_probe(dev, err, "Failed to get backlight handle\n"); drm_panel_add(&panel->drm_panel); |