Merge tag 'drm/panel/for-4.2-rc1' of git://anongit.freedesktop.org/te…

…gra/linux into drm-next

drm/panel: Changes for v4.2-rc1

This contains fixes for the long-standing build issues that some of the
bridge drivers were exposing. Other than that it's mostly cleanup and a
couple of new simple panels that are supported.

* tag 'drm/panel/for-4.2-rc1' of git://anongit.freedesktop.org/tegra/linux:
  drm/panel: simple: Add bus format for HannStar HSD100PXN1
  drm/panel: simple: Add display timing for HannStar HSD100PXN1
  drm/panel: ld9040: Remove useless padding
  drm/panel: Constify OF match tables
  drm/bridge: Remove stale ptn3460.h include
  drm/bridge: ps8622: Include linux/gpio/consumer.h
  drm/bridge: ptn3460: Include linux/gpio/consumer.h
  drm/bridge: dw-hdmi: Return number of EDID modes
  drm/panel: simple: Add support for LG LB070WV8 800x480 7" panel
  drm/bridge: ptn3460: Pass flags to devm_gpiod_get()
  drm/bridge: ps8622: Pass flags to devm_gpiod_get()
  drm/bridge: ptn3460: Fix I2C ID table to match the reported modalias
  drm/bridge: dw-hdmi: Staticize dw_hdmi_bridge_funcs

Documentation/devicetree/bindings/panel/hannstar,hsd100pxn1.txt

@@ -0,0 +1,7 @@
+HannStar Display Corp. HSD100PXN1 10.1" XGA LVDS panel
+
+Required properties:
+- compatible: should be "hannstar,hsd100pxn1"
+
+This binding is compatible with the simple-panel binding, which is specified
+in simple-panel.txt in this directory.

Documentation/devicetree/bindings/panel/lg,lb070wv8.txt

@@ -0,0 +1,7 @@
+LG 7" (800x480 pixels) TFT LCD panel
+
+Required properties:
+- compatible: should be "lg,lb070wv8"
+
+This binding is compatible with the simple-panel binding, which is specified
+in simple-panel.txt in this directory.

drivers/gpu/drm/bridge/dw_hdmi.c

@@ -1395,7 +1395,7 @@ static int dw_hdmi_connector_get_modes(struct drm_connector *connector)
 	struct dw_hdmi *hdmi = container_of(connector, struct dw_hdmi,
 					     connector);
 	struct edid *edid;
-	int ret;
+	int ret = 0;
 
 	if (!hdmi->ddc)
 		return 0;
@@ -1412,7 +1412,7 @@ static int dw_hdmi_connector_get_modes(struct drm_connector *connector)
 		dev_dbg(hdmi->dev, "failed to get edid\n");
 	}
 
-	return 0;
+	return ret;
 }
 
 static enum drm_mode_status
@@ -1457,7 +1457,7 @@ static struct drm_connector_helper_funcs dw_hdmi_connector_helper_funcs = {
 	.best_encoder = dw_hdmi_connector_best_encoder,
 };
 
-struct drm_bridge_funcs dw_hdmi_bridge_funcs = {
+static struct drm_bridge_funcs dw_hdmi_bridge_funcs = {
 	.enable = dw_hdmi_bridge_enable,
 	.disable = dw_hdmi_bridge_disable,
 	.pre_enable = dw_hdmi_bridge_nop,

drivers/gpu/drm/bridge/ps8622.c

@@ -18,6 +18,7 @@
 #include <linux/err.h>
 #include <linux/fb.h>
 #include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/i2c.h>
 #include <linux/module.h>
 #include <linux/of.h>
@@ -581,31 +582,21 @@ static int ps8622_probe(struct i2c_client *client,
 		ps8622->v12 = NULL;
 	}
 
-	ps8622->gpio_slp = devm_gpiod_get(dev, "sleep");
+	ps8622->gpio_slp = devm_gpiod_get(dev, "sleep", GPIOD_OUT_HIGH);
 	if (IS_ERR(ps8622->gpio_slp)) {
 		ret = PTR_ERR(ps8622->gpio_slp);
 		dev_err(dev, "cannot get gpio_slp %d\n", ret);
 		return ret;
 	}
-	ret = gpiod_direction_output(ps8622->gpio_slp, 1);
-	if (ret) {
-		dev_err(dev, "cannot configure gpio_slp\n");
-		return ret;
-	}
 
-	ps8622->gpio_rst = devm_gpiod_get(dev, "reset");
-	if (IS_ERR(ps8622->gpio_rst)) {
-		ret = PTR_ERR(ps8622->gpio_rst);
-		dev_err(dev, "cannot get gpio_rst %d\n", ret);
-		return ret;
-	}
 	/*
 	 * Assert the reset pin high to avoid the bridge being
 	 * initialized prematurely
 	 */
-	ret = gpiod_direction_output(ps8622->gpio_rst, 1);
-	if (ret) {
-		dev_err(dev, "cannot configure gpio_rst\n");
+	ps8622->gpio_rst = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
+	if (IS_ERR(ps8622->gpio_rst)) {
+		ret = PTR_ERR(ps8622->gpio_rst);
+		dev_err(dev, "cannot get gpio_rst %d\n", ret);
 		return ret;
 	}
 

drivers/gpu/drm/bridge/ptn3460.c

@@ -15,6 +15,7 @@
 
 #include <linux/delay.h>
 #include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/i2c.h>
 #include <linux/module.h>
 #include <linux/of.h>
@@ -23,8 +24,6 @@
 
 #include <drm/drm_panel.h>
 
-#include "bridge/ptn3460.h"
-
 #include "drm_crtc.h"
 #include "drm_crtc_helper.h"
 #include "drm_edid.h"
@@ -330,32 +329,23 @@ static int ptn3460_probe(struct i2c_client *client,
 
 	ptn_bridge->client = client;
 
-	ptn_bridge->gpio_pd_n = devm_gpiod_get(&client->dev, "powerdown");
+	ptn_bridge->gpio_pd_n = devm_gpiod_get(&client->dev, "powerdown",
+					       GPIOD_OUT_HIGH);
 	if (IS_ERR(ptn_bridge->gpio_pd_n)) {
 		ret = PTR_ERR(ptn_bridge->gpio_pd_n);
 		dev_err(dev, "cannot get gpio_pd_n %d\n", ret);
 		return ret;
 	}
 
-	ret = gpiod_direction_output(ptn_bridge->gpio_pd_n, 1);
-	if (ret) {
-		DRM_ERROR("cannot configure gpio_pd_n\n");
-		return ret;
-	}
-
-	ptn_bridge->gpio_rst_n = devm_gpiod_get(&client->dev, "reset");
-	if (IS_ERR(ptn_bridge->gpio_rst_n)) {
-		ret = PTR_ERR(ptn_bridge->gpio_rst_n);
-		DRM_ERROR("cannot get gpio_rst_n %d\n", ret);
-		return ret;
-	}
 	/*
 	 * Request the reset pin low to avoid the bridge being
 	 * initialized prematurely
 	 */
-	ret = gpiod_direction_output(ptn_bridge->gpio_rst_n, 0);
-	if (ret) {
-		DRM_ERROR("cannot configure gpio_rst_n\n");
+	ptn_bridge->gpio_rst_n = devm_gpiod_get(&client->dev, "reset",
+						GPIOD_OUT_LOW);
+	if (IS_ERR(ptn_bridge->gpio_rst_n)) {
+		ret = PTR_ERR(ptn_bridge->gpio_rst_n);
+		DRM_ERROR("cannot get gpio_rst_n %d\n", ret);
 		return ret;
 	}
 
@@ -389,7 +379,7 @@ static int ptn3460_remove(struct i2c_client *client)
 }
 
 static const struct i2c_device_id ptn3460_i2c_table[] = {
-	{"nxp,ptn3460", 0},
+	{"ptn3460", 0},
 	{},
 };
 MODULE_DEVICE_TABLE(i2c, ptn3460_i2c_table);

drivers/gpu/drm/exynos/exynos_dp_core.c

@@ -29,7 +29,6 @@
 #include <drm/drm_crtc.h>
 #include <drm/drm_crtc_helper.h>
 #include <drm/drm_panel.h>
-#include <drm/bridge/ptn3460.h>
 
 #include "exynos_dp_core.h"
 

drivers/gpu/drm/panel/panel-ld9040.c

@@ -367,18 +367,18 @@ static int ld9040_remove(struct spi_device *spi)
 	return 0;
 }
 
-static struct of_device_id ld9040_of_match[] = {
+static const struct of_device_id ld9040_of_match[] = {
 	{ .compatible = "samsung,ld9040" },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, ld9040_of_match);
 
 static struct spi_driver ld9040_driver = {
-	.probe		= ld9040_probe,
-	.remove		= ld9040_remove,
+	.probe = ld9040_probe,
+	.remove = ld9040_remove,
 	.driver = {
-		.name	= "ld9040",
-		.owner	= THIS_MODULE,
+		.name = "ld9040",
+		.owner = THIS_MODULE,
 		.of_match_table = ld9040_of_match,
 	},
 };

drivers/gpu/drm/panel/panel-s6e8aa0.c

@@ -1041,7 +1041,7 @@ static int s6e8aa0_remove(struct mipi_dsi_device *dsi)
 	return 0;
 }
 
-static struct of_device_id s6e8aa0_of_match[] = {
+static const struct of_device_id s6e8aa0_of_match[] = {
 	{ .compatible = "samsung,s6e8aa0" },
 	{ }
 };

drivers/gpu/drm/panel/panel-simple.c

@@ -731,6 +731,30 @@ static const struct panel_desc hannstar_hsd070pww1 = {
 	},
 };
 
+static const struct display_timing hannstar_hsd100pxn1_timing = {
+	.pixelclock = { 55000000, 65000000, 75000000 },
+	.hactive = { 1024, 1024, 1024 },
+	.hfront_porch = { 40, 40, 40 },
+	.hback_porch = { 220, 220, 220 },
+	.hsync_len = { 20, 60, 100 },
+	.vactive = { 768, 768, 768 },
+	.vfront_porch = { 7, 7, 7 },
+	.vback_porch = { 21, 21, 21 },
+	.vsync_len = { 10, 10, 10 },
+	.flags = DISPLAY_FLAGS_DE_HIGH,
+};
+
+static const struct panel_desc hannstar_hsd100pxn1 = {
+	.timings = &hannstar_hsd100pxn1_timing,
+	.num_timings = 1,
+	.bpc = 6,
+	.size = {
+		.width = 203,
+		.height = 152,
+	},
+	.bus_format = MEDIA_BUS_FMT_RGB666_1X7X3_SPWG,
+};
+
 static const struct drm_display_mode hitachi_tx23d38vm0caa_mode = {
 	.clock = 33333,
 	.hdisplay = 800,
@@ -872,6 +896,30 @@ static const struct panel_desc innolux_zj070na_01p = {
 	},
 };
 
+static const struct drm_display_mode lg_lb070wv8_mode = {
+	.clock = 33246,
+	.hdisplay = 800,
+	.hsync_start = 800 + 88,
+	.hsync_end = 800 + 88 + 80,
+	.htotal = 800 + 88 + 80 + 88,
+	.vdisplay = 480,
+	.vsync_start = 480 + 10,
+	.vsync_end = 480 + 10 + 25,
+	.vtotal = 480 + 10 + 25 + 10,
+	.vrefresh = 60,
+};
+
+static const struct panel_desc lg_lb070wv8 = {
+	.modes = &lg_lb070wv8_mode,
+	.num_modes = 1,
+	.bpc = 16,
+	.size = {
+		.width = 151,
+		.height = 91,
+	},
+	.bus_format = MEDIA_BUS_FMT_RGB888_1X7X4_SPWG,
+};
+
 static const struct drm_display_mode lg_lp129qe_mode = {
 	.clock = 285250,
 	.hdisplay = 2560,
@@ -1037,6 +1085,9 @@ static const struct of_device_id platform_of_match[] = {
 	}, {
 		.compatible = "hannstar,hsd070pww1",
 		.data = &hannstar_hsd070pww1,
+	}, {
+		.compatible = "hannstar,hsd100pxn1",
+		.data = &hannstar_hsd100pxn1,
 	}, {
 		.compatible = "hit,tx23d38vm0caa",
 		.data = &hitachi_tx23d38vm0caa
@@ -1055,6 +1106,9 @@ static const struct of_device_id platform_of_match[] = {
 	}, {
 		.compatible = "innolux,zj070na-01p",
 		.data = &innolux_zj070na_01p,
+	}, {
+		.compatible = "lg,lb070wv8",
+		.data = &lg_lb070wv8,
 	}, {
 		.compatible = "lg,lp129qe",
 		.data = &lg_lp129qe,