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authorTomi Valkeinen <tomi.valkeinen@nokia.com>2009-12-09 18:19:42 +0200
committerTomi Valkeinen <tomi.valkeinen@nokia.com>2009-12-09 18:19:42 +0200
commit3b8f29b4152899e91c210186a38bffb37ea1a226 (patch)
treec572a968b164d0af30f99ed5ee0f42e8bc07b736 /drivers/video
parentb39a982ddecf1d95ed96f8457c39d3ea11df93f6 (diff)
OMAP: DSS2: Add generic and Sharp panel drivers
Add Generic panel (user for DVI output) and Sharp LS037V7DW01 LCD panel. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Diffstat (limited to 'drivers/video')
-rw-r--r--drivers/video/omap2/Kconfig1
-rw-r--r--drivers/video/omap2/Makefile1
-rw-r--r--drivers/video/omap2/displays/Kconfig16
-rw-r--r--drivers/video/omap2/displays/Makefile2
-rw-r--r--drivers/video/omap2/displays/panel-generic.c104
-rw-r--r--drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c153
6 files changed, 277 insertions, 0 deletions
diff --git a/drivers/video/omap2/Kconfig b/drivers/video/omap2/Kconfig
index 3e60d7e88540..d877c361abda 100644
--- a/drivers/video/omap2/Kconfig
+++ b/drivers/video/omap2/Kconfig
@@ -6,3 +6,4 @@ config OMAP2_VRFB
source "drivers/video/omap2/dss/Kconfig"
source "drivers/video/omap2/omapfb/Kconfig"
+source "drivers/video/omap2/displays/Kconfig"
diff --git a/drivers/video/omap2/Makefile b/drivers/video/omap2/Makefile
index 3ba6ef5e30d4..d853d05dad31 100644
--- a/drivers/video/omap2/Makefile
+++ b/drivers/video/omap2/Makefile
@@ -3,3 +3,4 @@ obj-$(CONFIG_OMAP2_VRFB) += vrfb.o
obj-y += dss/
obj-y += omapfb/
+obj-y += displays/
diff --git a/drivers/video/omap2/displays/Kconfig b/drivers/video/omap2/displays/Kconfig
new file mode 100644
index 000000000000..2a39bfeca11d
--- /dev/null
+++ b/drivers/video/omap2/displays/Kconfig
@@ -0,0 +1,16 @@
+menu "OMAP2/3 Display Device Drivers"
+ depends on OMAP2_DSS
+
+config PANEL_GENERIC
+ tristate "Generic Panel"
+ help
+ Generic panel driver.
+ Used for DVI output for Beagle and OMAP3 SDP.
+
+config PANEL_SHARP_LS037V7DW01
+ tristate "Sharp LS037V7DW01 LCD Panel"
+ depends on OMAP2_DSS
+ help
+ LCD Panel used in TI's SDP3430 and EVM boards
+
+endmenu
diff --git a/drivers/video/omap2/displays/Makefile b/drivers/video/omap2/displays/Makefile
new file mode 100644
index 000000000000..12dd37c227df
--- /dev/null
+++ b/drivers/video/omap2/displays/Makefile
@@ -0,0 +1,2 @@
+obj-$(CONFIG_PANEL_GENERIC) += panel-generic.o
+obj-$(CONFIG_PANEL_SHARP_LS037V7DW01) += panel-sharp-ls037v7dw01.o
diff --git a/drivers/video/omap2/displays/panel-generic.c b/drivers/video/omap2/displays/panel-generic.c
new file mode 100644
index 000000000000..eb48d1afd800
--- /dev/null
+++ b/drivers/video/omap2/displays/panel-generic.c
@@ -0,0 +1,104 @@
+/*
+ * Generic panel support
+ *
+ * Copyright (C) 2008 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.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 generic_panel_timings = {
+ /* 640 x 480 @ 60 Hz Reduced blanking VESA CVT 0.31M3-R */
+ .x_res = 640,
+ .y_res = 480,
+ .pixel_clock = 23500,
+ .hfp = 48,
+ .hsw = 32,
+ .hbp = 80,
+ .vfp = 3,
+ .vsw = 4,
+ .vbp = 7,
+};
+
+static int generic_panel_probe(struct omap_dss_device *dssdev)
+{
+ dssdev->panel.config = OMAP_DSS_LCD_TFT;
+ dssdev->panel.timings = generic_panel_timings;
+
+ return 0;
+}
+
+static void generic_panel_remove(struct omap_dss_device *dssdev)
+{
+}
+
+static int generic_panel_enable(struct omap_dss_device *dssdev)
+{
+ int r = 0;
+
+ if (dssdev->platform_enable)
+ r = dssdev->platform_enable(dssdev);
+
+ return r;
+}
+
+static void generic_panel_disable(struct omap_dss_device *dssdev)
+{
+ if (dssdev->platform_disable)
+ dssdev->platform_disable(dssdev);
+}
+
+static int generic_panel_suspend(struct omap_dss_device *dssdev)
+{
+ generic_panel_disable(dssdev);
+ return 0;
+}
+
+static int generic_panel_resume(struct omap_dss_device *dssdev)
+{
+ return generic_panel_enable(dssdev);
+}
+
+static struct omap_dss_driver generic_driver = {
+ .probe = generic_panel_probe,
+ .remove = generic_panel_remove,
+
+ .enable = generic_panel_enable,
+ .disable = generic_panel_disable,
+ .suspend = generic_panel_suspend,
+ .resume = generic_panel_resume,
+
+ .driver = {
+ .name = "generic_panel",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init generic_panel_drv_init(void)
+{
+ return omap_dss_register_driver(&generic_driver);
+}
+
+static void __exit generic_panel_drv_exit(void)
+{
+ omap_dss_unregister_driver(&generic_driver);
+}
+
+module_init(generic_panel_drv_init);
+module_exit(generic_panel_drv_exit);
+MODULE_LICENSE("GPL");
diff --git a/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c b/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c
new file mode 100644
index 000000000000..bbe880bbe795
--- /dev/null
+++ b/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c
@@ -0,0 +1,153 @@
+/*
+ * LCD panel driver for Sharp LS037V7DW01
+ *
+ * Copyright (C) 2008 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.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/regulator/consumer.h>
+#include <linux/err.h>
+
+#include <plat/display.h>
+
+struct sharp_data {
+ /* XXX This regulator should actually be in SDP board file, not here,
+ * as it doesn't actually power the LCD, but something else that
+ * affects the output to LCD (I think. Somebody clarify). It doesn't do
+ * harm here, as SDP is the only board using this currently */
+ struct regulator *vdvi_reg;
+};
+
+static struct omap_video_timings sharp_ls_timings = {
+ .x_res = 480,
+ .y_res = 640,
+
+ .pixel_clock = 19200,
+
+ .hsw = 2,
+ .hfp = 1,
+ .hbp = 28,
+
+ .vsw = 1,
+ .vfp = 1,
+ .vbp = 1,
+};
+
+static int sharp_ls_panel_probe(struct omap_dss_device *dssdev)
+{
+ struct sharp_data *sd;
+
+ dssdev->panel.config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
+ OMAP_DSS_LCD_IHS;
+ dssdev->panel.acb = 0x28;
+ dssdev->panel.timings = sharp_ls_timings;
+
+ sd = kzalloc(sizeof(*sd), GFP_KERNEL);
+ if (!sd)
+ return -ENOMEM;
+
+ dev_set_drvdata(&dssdev->dev, sd);
+
+ sd->vdvi_reg = regulator_get(&dssdev->dev, "vdvi");
+ if (IS_ERR(sd->vdvi_reg)) {
+ kfree(sd);
+ pr_err("failed to get VDVI regulator\n");
+ return PTR_ERR(sd->vdvi_reg);
+ }
+
+ return 0;
+}
+
+static void sharp_ls_panel_remove(struct omap_dss_device *dssdev)
+{
+ struct sharp_data *sd = dev_get_drvdata(&dssdev->dev);
+
+ regulator_put(sd->vdvi_reg);
+
+ kfree(sd);
+}
+
+static int sharp_ls_panel_enable(struct omap_dss_device *dssdev)
+{
+ struct sharp_data *sd = dev_get_drvdata(&dssdev->dev);
+ int r = 0;
+
+ /* wait couple of vsyncs until enabling the LCD */
+ msleep(50);
+
+ regulator_enable(sd->vdvi_reg);
+
+ if (dssdev->platform_enable)
+ r = dssdev->platform_enable(dssdev);
+
+ return r;
+}
+
+static void sharp_ls_panel_disable(struct omap_dss_device *dssdev)
+{
+ struct sharp_data *sd = dev_get_drvdata(&dssdev->dev);
+
+ if (dssdev->platform_disable)
+ dssdev->platform_disable(dssdev);
+
+ regulator_disable(sd->vdvi_reg);
+
+ /* wait at least 5 vsyncs after disabling the LCD */
+
+ msleep(100);
+}
+
+static int sharp_ls_panel_suspend(struct omap_dss_device *dssdev)
+{
+ sharp_ls_panel_disable(dssdev);
+ return 0;
+}
+
+static int sharp_ls_panel_resume(struct omap_dss_device *dssdev)
+{
+ return sharp_ls_panel_enable(dssdev);
+}
+
+static struct omap_dss_driver sharp_ls_driver = {
+ .probe = sharp_ls_panel_probe,
+ .remove = sharp_ls_panel_remove,
+
+ .enable = sharp_ls_panel_enable,
+ .disable = sharp_ls_panel_disable,
+ .suspend = sharp_ls_panel_suspend,
+ .resume = sharp_ls_panel_resume,
+
+ .driver = {
+ .name = "sharp_ls_panel",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init sharp_ls_panel_drv_init(void)
+{
+ return omap_dss_register_driver(&sharp_ls_driver);
+}
+
+static void __exit sharp_ls_panel_drv_exit(void)
+{
+ omap_dss_unregister_driver(&sharp_ls_driver);
+}
+
+module_init(sharp_ls_panel_drv_init);
+module_exit(sharp_ls_panel_drv_exit);
+MODULE_LICENSE("GPL");

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