Commit dfb64090 authored by Guido Günther's avatar Guido Günther
Browse files

drm/panel: st7703: Use dev_err_probe 



Less code and easier probe deferral debugging.

Signed-off-by: default avatarGuido Günther <agx@sigxcpu.org>
Reviewed-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Reviewed-by: default avatarSam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/36405038d93eb148f3e8ed8e5ea70de8e87afd78.1605688147.git.agx@sigxcpu.org
parent a3d0d834

drivers/gpu/drm/panel/panel-sitronix-st7703.c

+8 −16
Original line number Diff line number Diff line
@@ -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);