From 5e227dbb55a40c616cca8a2345a159310c729897 Mon Sep 17 00:00:00 2001
From: Koen Kooi <koen@dominion.thruhere.net>
Date: Mon, 15 Feb 2010 14:38:00 +0100
Subject: [PATCH 28/45] OMAP: DSS2: (Re)add support for Samsung lte430wq-f0c panel

---
 drivers/video/omap2/displays/Kconfig               |    6 +
 drivers/video/omap2/displays/Makefile              |    1 +
 .../omap2/displays/panel-samsung-lte430wq-f0c.c    |  113 ++++++++++++++++++++
 3 files changed, 120 insertions(+), 0 deletions(-)
 create mode 100644 drivers/video/omap2/displays/panel-samsung-lte430wq-f0c.c

diff --git a/drivers/video/omap2/displays/Kconfig b/drivers/video/omap2/displays/Kconfig
index 4ce47dd..4229a28 100644
--- a/drivers/video/omap2/displays/Kconfig
+++ b/drivers/video/omap2/displays/Kconfig
@@ -7,6 +7,12 @@ config PANEL_GENERIC
 	  Generic panel driver.
 	  Used for DVI output for Beagle and OMAP3 SDP.
 
+config PANEL_SAMSUNG_LTE430WQ_F0C
+        tristate "Samsung LTE430WQ-F0C LCD Panel"
+        depends on OMAP2_DSS
+        help
+          LCD Panel used on Overo Palo43
+
 config PANEL_SHARP_LS037V7DW01
         tristate "Sharp LS037V7DW01 LCD Panel"
         depends on OMAP2_DSS
diff --git a/drivers/video/omap2/displays/Makefile b/drivers/video/omap2/displays/Makefile
index 8f3d0ad..9317445 100644
--- a/drivers/video/omap2/displays/Makefile
+++ b/drivers/video/omap2/displays/Makefile
@@ -1,4 +1,5 @@
 obj-$(CONFIG_PANEL_GENERIC) += panel-generic.o
+obj-$(CONFIG_PANEL_SAMSUNG_LTE430WQ_F0C) += panel-samsung-lte430wq-f0c.o
 obj-$(CONFIG_PANEL_SHARP_LS037V7DW01) += panel-sharp-ls037v7dw01.o
 obj-$(CONFIG_PANEL_SHARP_LQ043T1DG01) += panel-sharp-lq043t1dg01.o
 
diff --git a/drivers/video/omap2/displays/panel-samsung-lte430wq-f0c.c b/drivers/video/omap2/displays/panel-samsung-lte430wq-f0c.c
new file mode 100644
index 0000000..3f0477e
--- /dev/null
+++ b/drivers/video/omap2/displays/panel-samsung-lte430wq-f0c.c
@@ -0,0 +1,113 @@
+/*
+ * LCD panel driver for Samsung LTE430WQ-F0C
+ *
+ * Author: Steve Sakoman <steve@sakoman.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+
+#include <plat/display.h>
+
+static struct omap_video_timings samsung_lte_timings = {
+	.x_res = 480,
+	.y_res = 272,
+
+	.pixel_clock	= 9200,
+
+	.hsw		= 41,
+	.hfp		= 8,
+	.hbp		= 45-41,
+
+	.vsw		= 10,
+	.vfp		= 4,
+	.vbp		= 12-10,
+};
+
+static int samsung_lte_panel_probe(struct omap_dss_device *dssdev)
+{
+	dssdev->panel.config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
+		OMAP_DSS_LCD_IHS;
+	dssdev->panel.timings = samsung_lte_timings;
+
+	return 0;
+}
+
+static void samsung_lte_panel_remove(struct omap_dss_device *dssdev)
+{
+}
+
+static int samsung_lte_panel_enable(struct omap_dss_device *dssdev)
+{
+	int r = 0;
+
+	/* wait couple of vsyncs until enabling the LCD */
+	msleep(50);
+
+	if (dssdev->platform_enable)
+		r = dssdev->platform_enable(dssdev);
+
+	return r;
+}
+
+static void samsung_lte_panel_disable(struct omap_dss_device *dssdev)
+{
+	if (dssdev->platform_disable)
+		dssdev->platform_disable(dssdev);
+
+	/* wait at least 5 vsyncs after disabling the LCD */
+
+	msleep(100);
+}
+
+static int samsung_lte_panel_suspend(struct omap_dss_device *dssdev)
+{
+	samsung_lte_panel_disable(dssdev);
+	return 0;
+}
+
+static int samsung_lte_panel_resume(struct omap_dss_device *dssdev)
+{
+	return samsung_lte_panel_enable(dssdev);
+}
+
+static struct omap_dss_driver samsung_lte_driver = {
+	.probe		= samsung_lte_panel_probe,
+	.remove		= samsung_lte_panel_remove,
+
+	.enable		= samsung_lte_panel_enable,
+	.disable	= samsung_lte_panel_disable,
+	.suspend	= samsung_lte_panel_suspend,
+	.resume		= samsung_lte_panel_resume,
+
+	.driver         = {
+		.name   = "samsung_lte_panel",
+		.owner  = THIS_MODULE,
+	},
+};
+
+static int __init samsung_lte_panel_drv_init(void)
+{
+	return omap_dss_register_driver(&samsung_lte_driver);
+}
+
+static void __exit samsung_lte_panel_drv_exit(void)
+{
+	omap_dss_unregister_driver(&samsung_lte_driver);
+}
+
+module_init(samsung_lte_panel_drv_init);
+module_exit(samsung_lte_panel_drv_exit);
+MODULE_LICENSE("GPL");
-- 
1.6.6.1