ARM: OMAP: This patch adds the driver to turn on the TFP410 framer to get DVI output working on the beagleboard

The default resolution is 1024x768@24bit

This version addresses the comments from Felipe Balbi adn Arun Edarath

Signed-off-by Koen Kooi <[email protected]>

---
 arch/arm/mach-omap2/board-omap3beagle.c |   11 +++
 drivers/video/omap/Makefile             |    1 +
 drivers/video/omap/lcd_omap3beagle.c    |  133 +++++++++++++++++++++++++++++++
 3 files changed, 145 insertions(+), 0 deletions(-)
 create mode 100644 drivers/video/omap/lcd_omap3beagle.c

arch/arm/mach-omap2/board-omap3beagle.c +11 -0

index 0c0cbfc..c992cc7 100644
@@ -63,12 +63,23 @@ static struct platform_device omap3_beagle_twl4030rtc_device = {
 	.id             = -1,
 };
 
+static struct platform_device omap3_beagle_lcd_device = {
+	.name		= "omap3beagle_lcd",
+	.id		= -1,
+};
+
+static struct omap_lcd_config omap3_beagle_lcd_config __initdata = {
+	.ctrl_name	= "internal",
+};
+
 static struct omap_board_config_kernel omap3_beagle_config[] __initdata = {
 	{ OMAP_TAG_UART,	&omap3_beagle_uart_config },
 	{ OMAP_TAG_MMC,		&omap3beagle_mmc_config },
+	{ OMAP_TAG_LCD,		&omap3_beagle_lcd_config },
 };
 
 static struct platform_device *omap3_beagle_devices[] __initdata = {
+	&omap3_beagle_lcd_device,
 #ifdef CONFIG_RTC_DRV_TWL4030
 	&omap3_beagle_twl4030rtc_device,
 #endif

drivers/video/omap/Makefile +1 -0

index cad6a68..fe7ee5d 100644
@@ -32,6 +32,7 @@ objs-y$(CONFIG_MACH_OMAP_APOLLON) += lcd_apollon.o
 objs-y$(CONFIG_MACH_OMAP_2430SDP) += lcd_2430sdp.o
 objs-y$(CONFIG_MACH_OMAP_3430SDP) += lcd_2430sdp.o
 objs-y$(CONFIG_MACH_OMAP3EVM) += lcd_omap3evm.o
+objs-y$(CONFIG_MACH_OMAP3_BEAGLE) += lcd_omap3beagle.o
 objs-y$(CONFIG_FB_OMAP_LCD_MIPID) += lcd_mipid.o
 
 omapfb-objs := $(objs-yy)

drivers/video/omap/lcd_omap3beagle.c new file +133 -0

new file mode 100644
index 0000000..e7ec46e
@@ -0,0 +1,133 @@
+/*
+ * LCD panel support for the TI OMAP3 Beagle board
+ *
+ * Author: Koen Kooi <[email protected]>
+ *
+ * Derived from drivers/video/omap/lcd-omap3evm.c
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * 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, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/i2c/twl4030.h>
+
+#include <asm/arch/gpio.h>
+#include <asm/arch/mux.h>
+#include <asm/arch/omapfb.h>
+#include <asm/mach-types.h>
+
+#define LCD_PANEL_ENABLE_GPIO       170
+
+#define LCD_XRES	 	1024	
+#define LCD_YRES 		768
+#define LCD_PIXCLOCK		64000 /* in kHz */
+
+static int omap3beagle_panel_init(struct lcd_panel *panel,
+				struct omapfb_device *fbdev)
+{
+	omap_request_gpio(LCD_PANEL_ENABLE_GPIO);
+	return 0;
+}
+
+static void omap3beagle_panel_cleanup(struct lcd_panel *panel)
+{
+}
+
+static int omap3beagle_panel_enable(struct lcd_panel *panel)
+{
+	omap_set_gpio_dataout(LCD_PANEL_ENABLE_GPIO, 1);
+	return 0;
+}
+
+static void omap3beagle_panel_disable(struct lcd_panel *panel)
+{
+	omap_set_gpio_dataout(LCD_PANEL_ENABLE_GPIO, 0);
+}
+
+static unsigned long omap3beagle_panel_get_caps(struct lcd_panel *panel)
+{
+	return 0;
+}
+
+struct lcd_panel omap3beagle_panel = {
+	.name		= "omap3beagle",
+	.config		= OMAP_LCDC_PANEL_TFT,
+
+	.bpp		= 24,
+	.data_lines	= 24,
+	.x_res		= LCD_XRES,
+	.y_res		= LCD_YRES,
+	.hsw		= 3,		/* hsync_len (4) - 1 */
+	.hfp		= 3,		/* right_margin (4) - 1 */
+	.hbp		= 39,		/* left_margin (40) - 1 */
+	.vsw		= 1,		/* vsync_len (2) - 1 */
+	.vfp		= 2,		/* lower_margin */
+	.vbp		= 7,		/* upper_margin (8) - 1 */
+
+	.pixel_clock	= LCD_PIXCLOCK,
+
+	.init		= omap3beagle_panel_init,
+	.cleanup	= omap3beagle_panel_cleanup,
+	.enable		= omap3beagle_panel_enable,
+	.disable	= omap3beagle_panel_disable,
+	.get_caps	= omap3beagle_panel_get_caps,
+};
+
+static int omap3beagle_panel_probe(struct platform_device *pdev)
+{
+	omapfb_register_panel(&omap3beagle_panel);
+	return 0;
+}
+
+static int omap3beagle_panel_remove(struct platform_device *pdev)
+{
+	return 0;
+}
+
+static int omap3beagle_panel_suspend(struct platform_device *pdev,
+				   pm_message_t mesg)
+{
+	return 0;
+}
+
+static int omap3beagle_panel_resume(struct platform_device *pdev)
+{
+	return 0;
+}
+
+struct platform_driver omap3beagle_panel_driver = {
+	.probe		= omap3beagle_panel_probe,
+	.remove		= omap3beagle_panel_remove,
+	.suspend	= omap3beagle_panel_suspend,
+	.resume		= omap3beagle_panel_resume,
+	.driver		= {
+		.name	= "omap3beagle_lcd",
+		.owner	= THIS_MODULE,
+	},
+};
+
+static int __init omap3beagle_panel_drv_init(void)
+{
+	return platform_driver_register(&omap3beagle_panel_driver);
+}
+
+static void __exit omap3beagle_panel_drv_exit(void)
+{
+	platform_driver_unregister(&omap3beagle_panel_driver);
+}
+
+module_init(omap3beagle_panel_drv_init);
+module_exit(omap3beagle_panel_drv_exit);

Signature · 6 lines

1.5.4.3

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