u-boot/drivers/video/meson/simplefb_common.c
Neil Armstrong 3bed422094 video: Add Meson Video Processing Unit Driver
This adds video output support for Amlogic GXBB/GXL/GXM chips.
The supported ports are CVBS and HDMI (based on DW_HDMI).

When using HDMI, only DMT modes are supported.

There is support for simple-framebuffer (CONFIG_VIDEO_DT_SIMPLEFB)

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Jorge Ramire-Ortiz <jramirez@baylibre.com>
Signed-off-by: Maxime Jourdan <mjourdan@baylibre.com>
[narmstrong: fixed defines alignment in meson_canvas.c]
Reviewed-by: Anatolij Gustschin <agust@denx.de>
2019-01-31 09:35:01 +01:00

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C

// SPDX-License-Identifier: GPL-2.0+
/*
* Common code for Amlogic SimpleFB with pipeline.
*
* (C) Copyright 2013-2014 Luc Verhaegen <libv@skynet.be>
* (C) Copyright 2014-2015 Hans de Goede <hdegoede@redhat.com>
* (C) Copyright 2017 Icenowy Zheng <icenowy@aosc.io>
*/
#include <fdtdec.h>
int meson_simplefb_fdt_match(void *blob, const char *pipeline)
{
int offset, ret;
/* Find a prefilled simpefb node, matching out pipeline config */
offset = fdt_node_offset_by_compatible(blob, -1,
"amlogic,simple-framebuffer");
while (offset >= 0) {
ret = fdt_stringlist_search(blob, offset, "amlogic,pipeline",
pipeline);
if (ret == 0)
break;
offset = fdt_node_offset_by_compatible(blob, offset,
"amlogic,simple-framebuffer");
}
return offset;
}