OMAP: LCD panel support for the TI OMAP OSK board

- Adds TFT LCD panel support for TI OMAP OSK board.

Signed-off-by: Trilok Soni <soni.trilok@gmail.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 144 insertions, 0 deletions

diff --git a/drivers/video/omap/lcd_osk.c b/drivers/video/omap/lcd_osk.c
new file mode 100644
index 000000000000..a38038840fd6
--- /dev/null
+++ b/drivers/video/omap/lcd_osk.c
@@ -0,0 +1,144 @@
+/*
+ * LCD panel support for the TI OMAP OSK board
+ *
+ * Copyright (C) 2004 Nokia Corporation
+ * Author: Imre Deak <imre.deak@nokia.com>
+ * Adapted for OSK by <dirk.behme@de.bosch.com>
+ *
+ * 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 <asm/arch/gpio.h>
+#include <asm/arch/mux.h>
+#include <asm/arch/omapfb.h>
+
+static int osk_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev)
+{
+        return 0;
+}
+
+static void osk_panel_cleanup(struct lcd_panel *panel)
+{
+}
+
+static int osk_panel_enable(struct lcd_panel *panel)
+{
+        /* configure PWL pin */
+        omap_cfg_reg(PWL);
+
+        /* Enable PWL unit */
+        omap_writeb(0x01, OMAP_PWL_CLK_ENABLE);
+
+        /* Set PWL level */
+        omap_writeb(0xFF, OMAP_PWL_ENABLE);
+
+        /* configure GPIO2 as output */
+        omap_set_gpio_direction(2, 0);
+
+        /* set GPIO2 high */
+        omap_set_gpio_dataout(2, 1);
+
+        return 0;
+}
+
+static void osk_panel_disable(struct lcd_panel *panel)
+{
+        /* Set PWL level to zero */
+        omap_writeb(0x00, OMAP_PWL_ENABLE);
+
+        /* Disable PWL unit */
+        omap_writeb(0x00, OMAP_PWL_CLK_ENABLE);
+
+        /* set GPIO2 low */
+        omap_set_gpio_dataout(2, 0);
+}
+
+static unsigned long osk_panel_get_caps(struct lcd_panel *panel)
+{
+        return 0;
+}
+
+struct lcd_panel osk_panel = {
+        .name           = "osk",
+        .config         = OMAP_LCDC_PANEL_TFT,
+
+        .bpp            = 16,
+        .data_lines     = 16,
+        .x_res          = 240,
+        .y_res          = 320,
+        .pixel_clock    = 12500,
+        .hsw            = 40,
+        .hfp            = 40,
+        .hbp            = 72,
+        .vsw            = 1,
+        .vfp            = 1,
+        .vbp            = 0,
+        .pcd            = 12,
+
+        .init           = osk_panel_init,
+        .cleanup        = osk_panel_cleanup,
+        .enable         = osk_panel_enable,
+        .disable        = osk_panel_disable,
+        .get_caps       = osk_panel_get_caps,
+};
+
+static int osk_panel_probe(struct platform_device *pdev)
+{
+        omapfb_register_panel(&osk_panel);
+        return 0;
+}
+
+static int osk_panel_remove(struct platform_device *pdev)
+{
+        return 0;
+}
+
+static int osk_panel_suspend(struct platform_device *pdev, pm_message_t mesg)
+{
+        return 0;
+}
+
+static int osk_panel_resume(struct platform_device *pdev)
+{
+        return 0;
+}
+
+struct platform_driver osk_panel_driver = {
+        .probe          = osk_panel_probe,
+        .remove         = osk_panel_remove,
+        .suspend        = osk_panel_suspend,
+        .resume         = osk_panel_resume,
+        .driver         = {
+                .name   = "lcd_osk",
+                .owner  = THIS_MODULE,
+        },
+};
+
+static int osk_panel_drv_init(void)
+{
+        return platform_driver_register(&osk_panel_driver);
+}
+
+static void osk_panel_drv_cleanup(void)
+{
+        platform_driver_unregister(&osk_panel_driver);
+}
+
+module_init(osk_panel_drv_init);
+module_exit(osk_panel_drv_cleanup);
+