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drm/panel: st7703: Use dev_err_probe 

Less code and easier probe deferral debugging.

Signed-off-by: Guido Günther <agx@sigxcpu.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/36405038d93eb148f3e8ed8e5ea70de8e87afd78.1605688147.git.agx@sigxcpu.org
This commit is contained in:
Guido Günther 2020-11-18 09:29:48 +01:00
parent a3d0d83479
commit dfb6409089
1 changed files with 8 additions and 16 deletions
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24
drivers/gpu/drm/panel/panel-sitronix-st7703.c
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@ -530,10 +530,8 @@ static int st7703_probe(struct mipi_dsi_device *dsi)
return -ENOMEM;
ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(ctx->reset_gpio)) {
dev_err(dev, "cannot get reset gpio\n");
return PTR_ERR(ctx->reset_gpio);
}
if (IS_ERR(ctx->reset_gpio))
return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio), "Failed to get reset gpio\n");
mipi_dsi_set_drvdata(dsi, ctx);
@ -545,19 +543,13 @@ static int st7703_probe(struct mipi_dsi_device *dsi)
dsi->lanes = ctx->desc->lanes;
ctx->vcc = devm_regulator_get(dev, "vcc");
if (IS_ERR(ctx->vcc)) {
ret = PTR_ERR(ctx->vcc);
if (ret != -EPROBE_DEFER)
dev_err(dev, "Failed to request vcc regulator: %d\n", ret);
return ret;
}
if (IS_ERR(ctx->vcc))
return dev_err_probe(dev, PTR_ERR(ctx->vcc), "Failed to request vcc regulator\n");
ctx->iovcc = devm_regulator_get(dev, "iovcc");
if (IS_ERR(ctx->iovcc)) {
ret = PTR_ERR(ctx->iovcc);
if (ret != -EPROBE_DEFER)
dev_err(dev, "Failed to request iovcc regulator: %d\n", ret);
return ret;
}
if (IS_ERR(ctx->iovcc))
return dev_err_probe(dev, PTR_ERR(ctx->iovcc),
"Failed to request iovcc regulator\n");
drm_panel_init(&ctx->panel, dev, &st7703_drm_funcs,
DRM_MODE_CONNECTOR_DSI);