diff options
Diffstat (limited to 'drivers/video/omap2/displays-new/panel-dpi.c')
| -rw-r--r-- | drivers/video/omap2/displays-new/panel-dpi.c | 270 |
1 files changed, 0 insertions, 270 deletions
diff --git a/drivers/video/omap2/displays-new/panel-dpi.c b/drivers/video/omap2/displays-new/panel-dpi.c deleted file mode 100644 index 5f8f7e7c81ef..000000000000 --- a/drivers/video/omap2/displays-new/panel-dpi.c +++ /dev/null @@ -1,270 +0,0 @@ -/* - * Generic MIPI DPI Panel Driver - * - * Copyright (C) 2013 Texas Instruments - * Author: Tomi Valkeinen <tomi.valkeinen@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. - */ - -#include <linux/gpio.h> -#include <linux/module.h> -#include <linux/platform_device.h> -#include <linux/slab.h> - -#include <video/omapdss.h> -#include <video/omap-panel-data.h> - -struct panel_drv_data { - struct omap_dss_device dssdev; - struct omap_dss_device *in; - - int data_lines; - - struct omap_video_timings videomode; - - int backlight_gpio; - int enable_gpio; -}; - -#define to_panel_data(p) container_of(p, struct panel_drv_data, dssdev) - -static int panel_dpi_connect(struct omap_dss_device *dssdev) -{ - struct panel_drv_data *ddata = to_panel_data(dssdev); - struct omap_dss_device *in = ddata->in; - int r; - - if (omapdss_device_is_connected(dssdev)) - return 0; - - r = in->ops.dpi->connect(in, dssdev); - if (r) - return r; - - return 0; -} - -static void panel_dpi_disconnect(struct omap_dss_device *dssdev) -{ - struct panel_drv_data *ddata = to_panel_data(dssdev); - struct omap_dss_device *in = ddata->in; - - if (!omapdss_device_is_connected(dssdev)) - return; - - in->ops.dpi->disconnect(in, dssdev); -} - -static int panel_dpi_enable(struct omap_dss_device *dssdev) -{ - struct panel_drv_data *ddata = to_panel_data(dssdev); - struct omap_dss_device *in = ddata->in; - int r; - - if (!omapdss_device_is_connected(dssdev)) - return -ENODEV; - - if (omapdss_device_is_enabled(dssdev)) - return 0; - - in->ops.dpi->set_data_lines(in, ddata->data_lines); - in->ops.dpi->set_timings(in, &ddata->videomode); - - r = in->ops.dpi->enable(in); - if (r) - return r; - - if (gpio_is_valid(ddata->enable_gpio)) - gpio_set_value_cansleep(ddata->enable_gpio, 1); - - if (gpio_is_valid(ddata->backlight_gpio)) - gpio_set_value_cansleep(ddata->backlight_gpio, 1); - - dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; - - return 0; -} - -static void panel_dpi_disable(struct omap_dss_device *dssdev) -{ - struct panel_drv_data *ddata = to_panel_data(dssdev); - struct omap_dss_device *in = ddata->in; - - if (!omapdss_device_is_enabled(dssdev)) - return; - - if (gpio_is_valid(ddata->enable_gpio)) - gpio_set_value_cansleep(ddata->enable_gpio, 0); - - if (gpio_is_valid(ddata->backlight_gpio)) - gpio_set_value_cansleep(ddata->backlight_gpio, 0); - - in->ops.dpi->disable(in); - - dssdev->state = OMAP_DSS_DISPLAY_DISABLED; -} - -static void panel_dpi_set_timings(struct omap_dss_device *dssdev, - struct omap_video_timings *timings) -{ - struct panel_drv_data *ddata = to_panel_data(dssdev); - struct omap_dss_device *in = ddata->in; - - ddata->videomode = *timings; - dssdev->panel.timings = *timings; - - in->ops.dpi->set_timings(in, timings); -} - -static void panel_dpi_get_timings(struct omap_dss_device *dssdev, - struct omap_video_timings *timings) -{ - struct panel_drv_data *ddata = to_panel_data(dssdev); - - *timings = ddata->videomode; -} - -static int panel_dpi_check_timings(struct omap_dss_device *dssdev, - struct omap_video_timings *timings) -{ - struct panel_drv_data *ddata = to_panel_data(dssdev); - struct omap_dss_device *in = ddata->in; - - return in->ops.dpi->check_timings(in, timings); -} - -static struct omap_dss_driver panel_dpi_ops = { - .connect = panel_dpi_connect, - .disconnect = panel_dpi_disconnect, - - .enable = panel_dpi_enable, - .disable = panel_dpi_disable, - - .set_timings = panel_dpi_set_timings, - .get_timings = panel_dpi_get_timings, - .check_timings = panel_dpi_check_timings, - - .get_resolution = omapdss_default_get_resolution, -}; - -static int panel_dpi_probe_pdata(struct platform_device *pdev) -{ - const struct panel_dpi_platform_data *pdata; - struct panel_drv_data *ddata = platform_get_drvdata(pdev); - struct omap_dss_device *dssdev, *in; - struct videomode vm; - - pdata = dev_get_platdata(&pdev->dev); - - in = omap_dss_find_output(pdata->source); - if (in == NULL) { - dev_err(&pdev->dev, "failed to find video source '%s'\n", - pdata->source); - return -EPROBE_DEFER; - } - - ddata->in = in; - - ddata->data_lines = pdata->data_lines; - - videomode_from_timing(pdata->display_timing, &vm); - videomode_to_omap_video_timings(&vm, &ddata->videomode); - - dssdev = &ddata->dssdev; - dssdev->name = pdata->name; - - ddata->enable_gpio = pdata->enable_gpio; - ddata->backlight_gpio = pdata->backlight_gpio; - - return 0; -} - -static int panel_dpi_probe(struct platform_device *pdev) -{ - struct panel_drv_data *ddata; - struct omap_dss_device *dssdev; - int r; - - ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL); - if (ddata == NULL) - return -ENOMEM; - - platform_set_drvdata(pdev, ddata); - - if (dev_get_platdata(&pdev->dev)) { - r = panel_dpi_probe_pdata(pdev); - if (r) - return r; - } else { - return -ENODEV; - } - - if (gpio_is_valid(ddata->enable_gpio)) { - r = devm_gpio_request_one(&pdev->dev, ddata->enable_gpio, - GPIOF_OUT_INIT_LOW, "panel enable"); - if (r) - goto err_gpio; - } - - if (gpio_is_valid(ddata->backlight_gpio)) { - r = devm_gpio_request_one(&pdev->dev, ddata->backlight_gpio, - GPIOF_OUT_INIT_LOW, "panel backlight"); - if (r) - goto err_gpio; - } - - dssdev = &ddata->dssdev; - dssdev->dev = &pdev->dev; - dssdev->driver = &panel_dpi_ops; - dssdev->type = OMAP_DISPLAY_TYPE_DPI; - dssdev->owner = THIS_MODULE; - dssdev->panel.timings = ddata->videomode; - dssdev->phy.dpi.data_lines = ddata->data_lines; - - r = omapdss_register_display(dssdev); - if (r) { - dev_err(&pdev->dev, "Failed to register panel\n"); - goto err_reg; - } - - return 0; - -err_reg: -err_gpio: - omap_dss_put_device(ddata->in); - return r; -} - -static int __exit panel_dpi_remove(struct platform_device *pdev) -{ - struct panel_drv_data *ddata = platform_get_drvdata(pdev); - struct omap_dss_device *dssdev = &ddata->dssdev; - struct omap_dss_device *in = ddata->in; - - omapdss_unregister_display(dssdev); - - panel_dpi_disable(dssdev); - panel_dpi_disconnect(dssdev); - - omap_dss_put_device(in); - - return 0; -} - -static struct platform_driver panel_dpi_driver = { - .probe = panel_dpi_probe, - .remove = __exit_p(panel_dpi_remove), - .driver = { - .name = "panel-dpi", - .owner = THIS_MODULE, - }, -}; - -module_platform_driver(panel_dpi_driver); - -MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@ti.com>"); -MODULE_DESCRIPTION("Generic MIPI DPI Panel Driver"); -MODULE_LICENSE("GPL"); |
