| // SPDX-License-Identifier: GPL-2.0+ |
| /* |
| * Copyright (c) 2016 Google, Inc |
| * Written by Simon Glass <sjg@chromium.org> |
| */ |
| |
| #define LOG_CATEGORY UCLASS_PANEL |
| |
| #include <common.h> |
| #include <dm.h> |
| #include <panel.h> |
| |
| int panel_enable_backlight(struct udevice *dev) |
| { |
| struct panel_ops *ops = panel_get_ops(dev); |
| |
| if (!ops->enable_backlight) |
| return -ENOSYS; |
| |
| return ops->enable_backlight(dev); |
| } |
| |
| /** |
| * panel_set_backlight - Set brightness for the panel backlight |
| * |
| * @dev: Panel device containing the backlight to update |
| * @percent: Brightness value (0=off, 1=min brightness, |
| * 100=full brightness) |
| * Return: 0 if OK, -ve on error |
| */ |
| int panel_set_backlight(struct udevice *dev, int percent) |
| { |
| struct panel_ops *ops = panel_get_ops(dev); |
| |
| if (!ops->set_backlight) |
| return -ENOSYS; |
| |
| return ops->set_backlight(dev, percent); |
| } |
| |
| int panel_get_display_timing(struct udevice *dev, |
| struct display_timing *timings) |
| { |
| struct panel_ops *ops = panel_get_ops(dev); |
| |
| if (!ops->get_display_timing) |
| return -ENOSYS; |
| |
| return ops->get_display_timing(dev, timings); |
| } |
| |
| UCLASS_DRIVER(panel) = { |
| .id = UCLASS_PANEL, |
| .name = "panel", |
| }; |