Dummy panel driver includes the driver and 4 similar panel configurations. It will match the panel name which is passed from platform data and setup the right configurations. With dummy panel driver, we can remove those 4 duplicated panel display drivers. In the future, it is simple for us just add new panel configuration date in panel-dummy.h to support new display panel. Signed-off-by: Bryan Wu <bryan.wu@xxxxxxxxxxxxx> --- drivers/video/omap2/displays/Kconfig | 8 + drivers/video/omap2/displays/Makefile | 1 + drivers/video/omap2/displays/panel-dummy.c | 195 ++++++++++++++++++++++++++++ drivers/video/omap2/displays/panel-dummy.h | 119 +++++++++++++++++ 4 files changed, 323 insertions(+), 0 deletions(-) create mode 100644 drivers/video/omap2/displays/panel-dummy.c create mode 100644 drivers/video/omap2/displays/panel-dummy.h diff --git a/drivers/video/omap2/displays/Kconfig b/drivers/video/omap2/displays/Kconfig index 12327bb..4b2ed33 100644 --- a/drivers/video/omap2/displays/Kconfig +++ b/drivers/video/omap2/displays/Kconfig @@ -1,6 +1,14 @@ menu "OMAP2/3 Display Device Drivers" depends on OMAP2_DSS +config PANEL_DUMMY + tristate "Dummy Panel" + help + Dummy panel driver. + Supports DVI output for Beagle and OMAP3 SDP. + Supports LCD Panel used in TI SDP3430 and EVM boards, + OMAP3517 EVM boards and CM-T35. + config PANEL_GENERIC tristate "Generic Panel" help diff --git a/drivers/video/omap2/displays/Makefile b/drivers/video/omap2/displays/Makefile index aa38609..5b50036 100644 --- a/drivers/video/omap2/displays/Makefile +++ b/drivers/video/omap2/displays/Makefile @@ -1,3 +1,4 @@ +obj-$(CONFIG_PANEL_DUMMY) += panel-dummy.o obj-$(CONFIG_PANEL_GENERIC) += panel-generic.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-dummy.c b/drivers/video/omap2/displays/panel-dummy.c new file mode 100644 index 0000000..c4c387a --- /dev/null +++ b/drivers/video/omap2/displays/panel-dummy.c @@ -0,0 +1,195 @@ +/* + * Dummy Panels support + * + * Copyright (C) 2010 Canonical Ltd. + * Author: Bryan Wu <bryan.wu@xxxxxxxxxxxxx> + * + * 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> + +#include "panel-dummy.h" + +static int dummy_panel_power_on(struct omap_dss_device *dssdev) +{ + int r; + struct omap_display_panel *p = &dssdev->panel; + + if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) + return 0; + + r = omapdss_dpi_display_enable(dssdev); + if (r) + goto err0; + + /* wait couple of vsyncs until enabling the LCD */ + if (p->power_on_delay) + msleep(p->power_on_delay); + + 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 dummy_panel_power_off(struct omap_dss_device *dssdev) +{ + struct omap_display_panel *p = &dssdev->panel; + + if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) + return; + + if (dssdev->platform_disable) + dssdev->platform_disable(dssdev); + + /* wait couple of vsyncs after disabling the LCD */ + if (p->power_off_delay) + msleep(p->power_off_delay); + + omapdss_dpi_display_disable(dssdev); +} + +static int dummy_panel_probe(struct omap_dss_device *dssdev) +{ + struct omap_display_panel *dp = &dssdev->panel; + struct omap_display_panel *pp = NULL; + int i; + int matched = 0; + + if (dp->name == NULL) + return -ENODEV; + + /* Match for the configuration of the panel */ + for (i = 0; i < ARRAY_SIZE(dummy_panels); i++) { + pp = &dummy_panels[i]; + if (strcmp(pp->name, dp->name) == 0) { + matched = 1; + break; + } + } + + if (!matched) + return -ENODEV; + + memcpy(dp, pp, sizeof(struct omap_display_panel)); + + return 0; +} + +static void dummy_panel_remove(struct omap_dss_device *dssdev) +{ +} + +static int dummy_panel_enable(struct omap_dss_device *dssdev) +{ + int r = 0; + + r = dummy_panel_power_on(dssdev); + if (r) + return r; + + dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; + + return 0; +} + +static void dummy_panel_disable(struct omap_dss_device *dssdev) +{ + dummy_panel_power_off(dssdev); + + dssdev->state = OMAP_DSS_DISPLAY_DISABLED; +} + +static int dummy_panel_suspend(struct omap_dss_device *dssdev) +{ + dummy_panel_power_off(dssdev); + + dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED; + + return 0; +} + +static int dummy_panel_resume(struct omap_dss_device *dssdev) +{ + int r = 0; + + r = dummy_panel_power_on(dssdev); + if (r) + return r; + + dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; + + return 0; +} + +static void dummy_panel_set_timings(struct omap_dss_device *dssdev, + struct omap_video_timings *timings) +{ + dpi_set_timings(dssdev, timings); +} + +static void dummy_panel_get_timings(struct omap_dss_device *dssdev, + struct omap_video_timings *timings) +{ + *timings = dssdev->panel.timings; +} + +static int dummy_panel_check_timings(struct omap_dss_device *dssdev, + struct omap_video_timings *timings) +{ + return dpi_check_timings(dssdev, timings); +} + +static struct omap_dss_driver dummy_driver = { + .probe = dummy_panel_probe, + .remove = dummy_panel_remove, + + .enable = dummy_panel_enable, + .disable = dummy_panel_disable, + .suspend = dummy_panel_suspend, + .resume = dummy_panel_resume, + + .set_timings = dummy_panel_set_timings, + .get_timings = dummy_panel_get_timings, + .check_timings = dummy_panel_check_timings, + + .driver = { + .name = "dummy_panels", + .owner = THIS_MODULE, + }, +}; + +static int __init dummy_panel_drv_init(void) +{ + return omap_dss_register_driver(&dummy_driver); +} + +static void __exit dummy_panel_drv_exit(void) +{ + omap_dss_unregister_driver(&dummy_driver); +} + +module_init(dummy_panel_drv_init); +module_exit(dummy_panel_drv_exit); +MODULE_LICENSE("GPL"); diff --git a/drivers/video/omap2/displays/panel-dummy.h b/drivers/video/omap2/displays/panel-dummy.h new file mode 100644 index 0000000..ac2b7a2 --- /dev/null +++ b/drivers/video/omap2/displays/panel-dummy.h @@ -0,0 +1,119 @@ +/* + * Dummy panels support + * + * Copyright (C) 2010 Bryan Wu + * Author: Bryan Wu <bryan.wu@xxxxxxxxxxxxx> + * + * 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/>. + */ + +static struct omap_display_panel dummy_panels[] = { + /* Generic Panel */ + { + { + .x_res = 640, + .y_res = 480, + + .pixel_clock = 23500, + + .hfp = 48, + .hsw = 32, + .hbp = 80, + + .vfp = 3, + .vsw = 4, + .vbp = 7, + }, + .acbi = 0x0, + .acb = 0x0, + .config = OMAP_DSS_LCD_TFT, + .power_on_delay = 0, + .power_off_delay = 0, + .name = "generic", + }, + + /* Sharp LQ043T1DG01 */ + { + { .x_res = 480, + .y_res = 272, + + .pixel_clock = 9000, + + .hsw = 42, + .hfp = 3, + .hbp = 2, + + .vsw = 11, + .vfp = 3, + .vbp = 2, + }, + .acbi = 0x0, + .acb = 0x0, + .config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS | + OMAP_DSS_LCD_IHS | OMAP_DSS_LCD_IEO, + .power_on_delay = 50, + .power_off_delay = 100, + .name = "sharp_lq", + }, + + /* Sharp LS037V7DW01 */ + { + { + .x_res = 480, + .y_res = 640, + + .pixel_clock = 19200, + + .hsw = 2, + .hfp = 1, + .hbp = 28, + + .vsw = 1, + .vfp = 1, + .vbp = 1, + }, + .acbi = 0x0, + .acb = 0x28, + .config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS | + OMAP_DSS_LCD_IHS, + .power_on_delay = 50, + .power_off_delay = 100, + .name = "sharp_ls", + }, + + /* Toppoly TDO35S */ + { + { + .x_res = 480, + .y_res = 640, + + .pixel_clock = 26000, + + .hfp = 104, + .hsw = 8, + .hbp = 8, + + .vfp = 4, + .vsw = 2, + .vbp = 2, + }, + .acbi = 0x0, + .acb = 0x0, + .config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS | + OMAP_DSS_LCD_IHS | OMAP_DSS_LCD_IPC | + OMAP_DSS_LCD_ONOFF, + .power_on_delay = 0, + .power_off_delay = 0, + .name = "toppoly_tdo35s", + }, +}; -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html