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authorRussell King <rmk+kernel@arm.linux.org.uk>2010-03-08 20:21:04 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-03-08 20:21:04 +0000
commit988addf82e4c03739375279de73929580a2d4a6a (patch)
tree989ae1cd4e264bbad80c65f04480486246e7b9f3 /drivers/video/omap2/displays/panel-sharp-lq043t1dg01.c
parent004c1c7096659d352b83047a7593e91d8a30e3c5 (diff)
parent25cf84cf377c0aae5dbcf937ea89bc7893db5176 (diff)
Merge branch 'origin' into devel-stable
Conflicts: arch/arm/mach-mx2/devices.c arch/arm/mach-mx2/devices.h sound/soc/pxa/pxa-ssp.c
Diffstat (limited to 'drivers/video/omap2/displays/panel-sharp-lq043t1dg01.c')
-rw-r--r--drivers/video/omap2/displays/panel-sharp-lq043t1dg01.c159
1 files changed, 159 insertions, 0 deletions
diff --git a/drivers/video/omap2/displays/panel-sharp-lq043t1dg01.c b/drivers/video/omap2/displays/panel-sharp-lq043t1dg01.c
new file mode 100644
index 00000000000..10267461991
--- /dev/null
+++ b/drivers/video/omap2/displays/panel-sharp-lq043t1dg01.c
@@ -0,0 +1,159 @@
+/*
+ * LCD panel driver for Sharp LQ043T1DG01
+ *
+ * Copyright (C) 2009 Texas Instruments Inc
+ * Author: Vaibhav Hiremath <hvaibhav@ti.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 <linux/device.h>
+#include <linux/err.h>
+
+#include <plat/display.h>
+
+static struct omap_video_timings sharp_lq_timings = {
+ .x_res = 480,
+ .y_res = 272,
+
+ .pixel_clock = 9000,
+
+ .hsw = 42,
+ .hfp = 3,
+ .hbp = 2,
+
+ .vsw = 11,
+ .vfp = 3,
+ .vbp = 2,
+};
+
+static int sharp_lq_panel_power_on(struct omap_dss_device *dssdev)
+{
+ int r;
+
+ r = omapdss_dpi_display_enable(dssdev);
+ if (r)
+ goto err0;
+
+ /* wait couple of vsyncs until enabling the LCD */
+ msleep(50);
+
+ if (dssdev->platform_enable) {
+ r = dssdev->platform_enable(dssdev);
+ if (r)
+ goto err1;
+ }
+
+ return 0;
+err1:
+ omapdss_dpi_display_disable(dssdev);
+err0:
+ return r;
+}
+
+static void sharp_lq_panel_power_off(struct omap_dss_device *dssdev)
+{
+ if (dssdev->platform_disable)
+ dssdev->platform_disable(dssdev);
+
+ /* wait at least 5 vsyncs after disabling the LCD */
+ msleep(100);
+
+ omapdss_dpi_display_disable(dssdev);
+}
+
+static int sharp_lq_panel_probe(struct omap_dss_device *dssdev)
+{
+
+ dssdev->panel.config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
+ OMAP_DSS_LCD_IHS | OMAP_DSS_LCD_IEO;
+ dssdev->panel.acb = 0x0;
+ dssdev->panel.timings = sharp_lq_timings;
+
+ return 0;
+}
+
+static void sharp_lq_panel_remove(struct omap_dss_device *dssdev)
+{
+}
+
+static int sharp_lq_panel_enable(struct omap_dss_device *dssdev)
+{
+ int r = 0;
+
+ r = sharp_lq_panel_power_on(dssdev);
+ if (r)
+ return r;
+
+ dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
+
+ return 0;
+}
+
+static void sharp_lq_panel_disable(struct omap_dss_device *dssdev)
+{
+ sharp_lq_panel_power_off(dssdev);
+
+ dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
+}
+
+static int sharp_lq_panel_suspend(struct omap_dss_device *dssdev)
+{
+ sharp_lq_panel_power_off(dssdev);
+ dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
+ return 0;
+}
+
+static int sharp_lq_panel_resume(struct omap_dss_device *dssdev)
+{
+ int r = 0;
+
+ r = sharp_lq_panel_power_on(dssdev);
+ if (r)
+ return r;
+
+ dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
+
+ return 0;
+}
+
+static struct omap_dss_driver sharp_lq_driver = {
+ .probe = sharp_lq_panel_probe,
+ .remove = sharp_lq_panel_remove,
+
+ .enable = sharp_lq_panel_enable,
+ .disable = sharp_lq_panel_disable,
+ .suspend = sharp_lq_panel_suspend,
+ .resume = sharp_lq_panel_resume,
+
+ .driver = {
+ .name = "sharp_lq_panel",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init sharp_lq_panel_drv_init(void)
+{
+ return omap_dss_register_driver(&sharp_lq_driver);
+}
+
+static void __exit sharp_lq_panel_drv_exit(void)
+{
+ omap_dss_unregister_driver(&sharp_lq_driver);
+}
+
+module_init(sharp_lq_panel_drv_init);
+module_exit(sharp_lq_panel_drv_exit);
+MODULE_LICENSE("GPL");