1*83d290c5STom Rini // SPDX-License-Identifier: GPL-2.0+
22dcf1433SSimon Glass /*
32dcf1433SSimon Glass * Copyright 2014 Google Inc.
42dcf1433SSimon Glass */
52dcf1433SSimon Glass
62dcf1433SSimon Glass #include <common.h>
72dcf1433SSimon Glass #include <dm.h>
82dcf1433SSimon Glass #include <display.h>
92dcf1433SSimon Glass #include <edid.h>
102dcf1433SSimon Glass #include <errno.h>
112dcf1433SSimon Glass
display_read_edid(struct udevice * dev,u8 * buf,int buf_size)122dcf1433SSimon Glass int display_read_edid(struct udevice *dev, u8 *buf, int buf_size)
132dcf1433SSimon Glass {
142dcf1433SSimon Glass struct dm_display_ops *ops = display_get_ops(dev);
152dcf1433SSimon Glass
162dcf1433SSimon Glass if (!ops || !ops->read_edid)
172dcf1433SSimon Glass return -ENOSYS;
182dcf1433SSimon Glass return ops->read_edid(dev, buf, buf_size);
192dcf1433SSimon Glass }
202dcf1433SSimon Glass
display_enable(struct udevice * dev,int panel_bpp,const struct display_timing * timing)212dcf1433SSimon Glass int display_enable(struct udevice *dev, int panel_bpp,
222dcf1433SSimon Glass const struct display_timing *timing)
232dcf1433SSimon Glass {
242dcf1433SSimon Glass struct dm_display_ops *ops = display_get_ops(dev);
251b68283bSSimon Glass struct display_plat *disp_uc_plat;
261b68283bSSimon Glass int ret;
272dcf1433SSimon Glass
282dcf1433SSimon Glass if (!ops || !ops->enable)
292dcf1433SSimon Glass return -ENOSYS;
301b68283bSSimon Glass ret = ops->enable(dev, panel_bpp, timing);
311b68283bSSimon Glass if (ret)
321b68283bSSimon Glass return ret;
331b68283bSSimon Glass
341b68283bSSimon Glass disp_uc_plat = dev_get_uclass_platdata(dev);
351b68283bSSimon Glass disp_uc_plat->in_use = true;
361b68283bSSimon Glass
371b68283bSSimon Glass return 0;
382dcf1433SSimon Glass }
392dcf1433SSimon Glass
display_read_timing(struct udevice * dev,struct display_timing * timing)402dcf1433SSimon Glass int display_read_timing(struct udevice *dev, struct display_timing *timing)
412dcf1433SSimon Glass {
422dcf1433SSimon Glass struct dm_display_ops *ops = display_get_ops(dev);
432dcf1433SSimon Glass int panel_bits_per_colour;
442dcf1433SSimon Glass u8 buf[EDID_EXT_SIZE];
452dcf1433SSimon Glass int ret;
462dcf1433SSimon Glass
47eab314f5SJacob Chen if (ops && ops->read_timing)
48eab314f5SJacob Chen return ops->read_timing(dev, timing);
49eab314f5SJacob Chen
502dcf1433SSimon Glass if (!ops || !ops->read_edid)
512dcf1433SSimon Glass return -ENOSYS;
522dcf1433SSimon Glass ret = ops->read_edid(dev, buf, sizeof(buf));
532dcf1433SSimon Glass if (ret < 0)
542dcf1433SSimon Glass return ret;
552dcf1433SSimon Glass
562dcf1433SSimon Glass return edid_get_timing(buf, ret, timing, &panel_bits_per_colour);
572dcf1433SSimon Glass }
582dcf1433SSimon Glass
display_in_use(struct udevice * dev)591b68283bSSimon Glass bool display_in_use(struct udevice *dev)
601b68283bSSimon Glass {
611b68283bSSimon Glass struct display_plat *disp_uc_plat = dev_get_uclass_platdata(dev);
621b68283bSSimon Glass
631b68283bSSimon Glass return disp_uc_plat->in_use;
641b68283bSSimon Glass }
651b68283bSSimon Glass
662dcf1433SSimon Glass UCLASS_DRIVER(display) = {
672dcf1433SSimon Glass .id = UCLASS_DISPLAY,
682dcf1433SSimon Glass .name = "display",
692dcf1433SSimon Glass .per_device_platdata_auto_alloc_size = sizeof(struct display_plat),
702dcf1433SSimon Glass };
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