[PATCH 01/13] drm/omap: panel-dpi: remove non-DT support

[Tomi Valkeinen]

Non-DT booting is no longer supported, so remove legacy code.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen at ti.com>
---
 drivers/gpu/drm/omapdrm/displays/panel-dpi.c | 78 +++-------------------------
 1 file changed, 6 insertions(+), 72 deletions(-)

diff --git a/drivers/gpu/drm/omapdrm/displays/panel-dpi.c b/drivers/gpu/drm/omapdrm/displays/panel-dpi.c
index 04ce8c5f2954..75b98bb81de2 100644
--- a/drivers/gpu/drm/omapdrm/displays/panel-dpi.c
+++ b/drivers/gpu/drm/omapdrm/displays/panel-dpi.c
@@ -18,7 +18,6 @@
 #include <linux/regulator/consumer.h>
 #include <linux/backlight.h>
 
-#include <video/omap-panel-data.h>
 #include <video/of_display_timing.h>
 
 #include "../dss/omapdss.h"
@@ -33,9 +32,6 @@ struct panel_drv_data {
 
 	struct backlight_device *backlight;
 
-	/* used for non-DT boot, to be removed */
-	int backlight_gpio;
-
 	struct gpio_desc *enable_gpio;
 	struct regulator *vcc_supply;
 };
@@ -97,9 +93,6 @@ static int panel_dpi_enable(struct omap_dss_device *dssdev)
 
 	gpiod_set_value_cansleep(ddata->enable_gpio, 1);
 
-	if (gpio_is_valid(ddata->backlight_gpio))
-		gpio_set_value_cansleep(ddata->backlight_gpio, 1);
-
 	if (ddata->backlight) {
 		ddata->backlight->props.power = FB_BLANK_UNBLANK;
 		backlight_update_status(ddata->backlight);
@@ -118,9 +111,6 @@ static void panel_dpi_disable(struct omap_dss_device *dssdev)
 	if (!omapdss_device_is_enabled(dssdev))
 		return;
 
-	if (gpio_is_valid(ddata->backlight_gpio))
-		gpio_set_value_cansleep(ddata->backlight_gpio, 0);
-
 	if (ddata->backlight) {
 		ddata->backlight->props.power = FB_BLANK_POWERDOWN;
 		backlight_update_status(ddata->backlight);
@@ -177,47 +167,6 @@ static struct omap_dss_driver panel_dpi_ops = {
 	.get_resolution	= omapdss_default_get_resolution,
 };
 
-static int panel_dpi_probe_pdata(struct platform_device *pdev)
-{
-	const struct panel_dpi_platform_data *pdata;
-	struct panel_drv_data *ddata = platform_get_drvdata(pdev);
-	struct omap_dss_device *dssdev, *in;
-	int r;
-
-	pdata = dev_get_platdata(&pdev->dev);
-
-	in = omap_dss_find_output(pdata->source);
-	if (in == NULL) {
-		dev_err(&pdev->dev, "failed to find video source '%s'\n",
-				pdata->source);
-		return -EPROBE_DEFER;
-	}
-
-	ddata->in = in;
-
-	ddata->data_lines = pdata->data_lines;
-
-	videomode_from_timing(pdata->display_timing, &ddata->vm);
-
-	dssdev = &ddata->dssdev;
-	dssdev->name = pdata->name;
-
-	r = devm_gpio_request_one(&pdev->dev, pdata->enable_gpio,
-					GPIOF_OUT_INIT_LOW, "panel enable");
-	if (r)
-		goto err_gpio;
-
-	ddata->enable_gpio = gpio_to_desc(pdata->enable_gpio);
-
-	ddata->backlight_gpio = pdata->backlight_gpio;
-
-	return 0;
-
-err_gpio:
-	omap_dss_put_device(ddata->in);
-	return r;
-}
-
 static int panel_dpi_probe_of(struct platform_device *pdev)
 {
 	struct panel_drv_data *ddata = platform_get_drvdata(pdev);
@@ -248,8 +197,6 @@ static int panel_dpi_probe_of(struct platform_device *pdev)
 	if (IS_ERR(ddata->vcc_supply))
 		return PTR_ERR(ddata->vcc_supply);
 
-	ddata->backlight_gpio = -ENOENT;
-
 	bl_node = of_parse_phandle(node, "backlight", 0);
 	if (bl_node) {
 		ddata->backlight = of_find_backlight_by_node(bl_node);
@@ -291,30 +238,18 @@ static int panel_dpi_probe(struct platform_device *pdev)
 	struct omap_dss_device *dssdev;
 	int r;
 
+	if (!pdev->dev.of_node)
+		return -ENODEV;
+
 	ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);
 	if (ddata == NULL)
 		return -ENOMEM;
 
 	platform_set_drvdata(pdev, ddata);
 
-	if (dev_get_platdata(&pdev->dev)) {
-		r = panel_dpi_probe_pdata(pdev);
-		if (r)
-			return r;
-	} else if (pdev->dev.of_node) {
-		r = panel_dpi_probe_of(pdev);
-		if (r)
-			return r;
-	} else {
-		return -ENODEV;
-	}
-
-	if (gpio_is_valid(ddata->backlight_gpio)) {
-		r = devm_gpio_request_one(&pdev->dev, ddata->backlight_gpio,
-				GPIOF_OUT_INIT_LOW, "panel backlight");
-		if (r)
-			goto err_gpio;
-	}
+	r = panel_dpi_probe_of(pdev);
+	if (r)
+		return r;
 
 	dssdev = &ddata->dssdev;
 	dssdev->dev = &pdev->dev;
@@ -333,7 +268,6 @@ static int panel_dpi_probe(struct platform_device *pdev)
 	return 0;
 
 err_reg:
-err_gpio:
 	omap_dss_put_device(ddata->in);
 	return r;
 }
-- 
2.7.4