upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
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u-boot/include/panel.h

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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (c) 2016 Google, Inc
* Written by Simon Glass <sjg@chromium.org>
*/
#ifndef _PANEL_H
#define _PANEL_H
struct panel_ops {
/**
* enable_backlight() - Enable the panel backlight
*
* @dev: Panel device containing the backlight to enable
* @return 0 if OK, -ve on error
*/
int (*enable_backlight)(struct udevice *dev);
/**
* get_timings() - Get display timings from panel.
*
* @dev: Panel device containing the display timings
* @tim: Place to put timings
* @return 0 if OK, -ve on error
*/
int (*get_display_timing)(struct udevice *dev,
struct display_timing *timing);
};
#define panel_get_ops(dev) ((struct panel_ops *)(dev)->driver->ops)
/**
* panel_enable_backlight() - Enable the panel backlight
*
* @dev: Panel device containing the backlight to enable
* @return 0 if OK, -ve on error
*/
int panel_enable_backlight(struct udevice *dev);
/**
* panel_get_display_timing() - Get display timings from panel.
*
* @dev: Panel device containing the display timings
* @return 0 if OK, -ve on error
*/
int panel_get_display_timing(struct udevice *dev,
struct display_timing *timing);
#endif