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u-boot/include/panel.h

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SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-06 21:58:06 +00:00
/* SPDX-License-Identifier: GPL-2.0+ */
dm: panel: Add a panel uclass LCD panels can usefully be modelled as their own uclass. They can be probed (which powers them up ready for use). If they have a backlight, this can be enabled. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-01-22 02:44:58 +00:00
/*
* 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);
panel: Expand the backlight support At present the panel can be turned on but not off, and the brightness cannot be controlled at run-time. Add a new API function to both the panel and backlight uclasses to handle this. Enhance the PWM backlight driver to deal with custom levels properly and allow the backlight to be turned on and off. Update the test to cover thes new features. Signed-off-by: Simon Glass <sjg@chromium.org>
2018-10-01 18:22:41 +00:00
/**
* set_backlight - Set panel backlight brightness
*
* @dev: Panel device containing the backlight to update
* @percent: Brightness value (0 to 100, or BACKLIGHT_... value)
* @return 0 if OK, -ve on error
*/
int (*set_backlight)(struct udevice *dev, int percent);
dm: panel: get timings from panel Get timings from panel instead of read device tree. Signed-off-by: Yannick Fertré <yannick.fertre@st.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-07-13 12:11:09 +00:00
/**
* 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);
dm: panel: Add a panel uclass LCD panels can usefully be modelled as their own uclass. They can be probed (which powers them up ready for use). If they have a backlight, this can be enabled. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-01-22 02:44:58 +00:00
};
#define panel_get_ops(dev) ((struct panel_ops *)(dev)->driver->ops)
/**
panel: Expand the backlight support At present the panel can be turned on but not off, and the brightness cannot be controlled at run-time. Add a new API function to both the panel and backlight uclasses to handle this. Enhance the PWM backlight driver to deal with custom levels properly and allow the backlight to be turned on and off. Update the test to cover thes new features. Signed-off-by: Simon Glass <sjg@chromium.org>
2018-10-01 18:22:41 +00:00
* panel_enable_backlight() - Enable/disable the panel backlight
dm: panel: Add a panel uclass LCD panels can usefully be modelled as their own uclass. They can be probed (which powers them up ready for use). If they have a backlight, this can be enabled. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-01-22 02:44:58 +00:00
*
* @dev: Panel device containing the backlight to enable
panel: Expand the backlight support At present the panel can be turned on but not off, and the brightness cannot be controlled at run-time. Add a new API function to both the panel and backlight uclasses to handle this. Enhance the PWM backlight driver to deal with custom levels properly and allow the backlight to be turned on and off. Update the test to cover thes new features. Signed-off-by: Simon Glass <sjg@chromium.org>
2018-10-01 18:22:41 +00:00
* @enable: true to enable the backlight, false to dis
dm: panel: Add a panel uclass LCD panels can usefully be modelled as their own uclass. They can be probed (which powers them up ready for use). If they have a backlight, this can be enabled. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-01-22 02:44:58 +00:00
* @return 0 if OK, -ve on error
*/
int panel_enable_backlight(struct udevice *dev);
panel: Expand the backlight support At present the panel can be turned on but not off, and the brightness cannot be controlled at run-time. Add a new API function to both the panel and backlight uclasses to handle this. Enhance the PWM backlight driver to deal with custom levels properly and allow the backlight to be turned on and off. Update the test to cover thes new features. Signed-off-by: Simon Glass <sjg@chromium.org>
2018-10-01 18:22:41 +00:00
/**
* panel_set_backlight - Set brightness for the panel backlight
*
* @dev: Panel device containing the backlight to update
* @percent: Brightness value (0 to 100, or BACKLIGHT_... value)
* @return 0 if OK, -ve on error
*/
int panel_set_backlight(struct udevice *dev, int percent);
dm: panel: get timings from panel Get timings from panel instead of read device tree. Signed-off-by: Yannick Fertré <yannick.fertre@st.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-07-13 12:11:09 +00:00
/**
* 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);
dm: panel: Add a panel uclass LCD panels can usefully be modelled as their own uclass. They can be probed (which powers them up ready for use). If they have a backlight, this can be enabled. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-01-22 02:44:58 +00:00
#endif
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