starfive-tech/u-boot.git/common/edid.c, branch master

common: edid: Search for valid timing in extension block

2021-04-24T11:44:47+00:00

One of my monitors have only 4k@60 timing in base EDID block which is out of range for devices with HDMI 1.4. It turns out that it has additional detailed timings in CTA-861 Extension Block and two of them are appropriate for HDMI 1.4. Add additional search for valid detailed timing in extension block. Signed-off-by: Jernej Skrabec Acked-by: Andre Przywara Signed-off-by: Andre Przywara

common: edid: extract code for detailed timing search

2021-04-24T11:44:44+00:00

Code which searches for valid detailed timing entry will be used in more places. Extract it. No functional change is made. However, descriptors are casted to edid_detailed_timing instead of edid_monitor_descriptor. Descriptor can be of either type, but since we're interested only in DTD, it is more fitting to cast to edid_detailed_timing. Reviewed-by: Andre Przywara Signed-off-by: Jernej Skrabec Signed-off-by: Andre Przywara

common: edid: check for digital display earlier

2021-04-24T11:44:41+00:00

When searching for detailed timing in EDID, check for digital display earlier. There is no point parsing other parameters if this flag is not present. Reviewed-by: Andre Przywara Signed-off-by: Jernej Skrabec Signed-off-by: Andre Przywara

common: Drop log.h from common header

2020-05-19T01:19:18+00:00

Move this header out of the common header. Signed-off-by: Simon Glass

edid: fix edid_get_timing_validate() mode_valid lookup

2019-07-29T17:14:58+00:00

Add a condition to the break in the modes lookup, without this when the first mode is not valid, then edid_get_timing_validate() return an error instead of checking the next modes. Fixes: 1c1ed441b0d1 ("edid: add edid_get_timing_validate() variant to filter out edid modes") Signed-off-by: Neil Armstrong

edid: add edid_get_timing_validate() variant to filter out edid modes

2019-07-28T22:21:40+00:00

The original edid_get_timing() function returns the first valid timing, but on some plaforms, we could only supports a subset of the listed monitot's navite timing. Let's introduce a edid_get_timing_validate() adding a mode_valid callback including a private cookie pointer. If the callback returns false, the current timing is discared and the next one is checked. If no valid & supported timings are found, the function would return an error. Signed-off-by: Neil Armstrong

SPDX: Convert all of our single license tags to Linux Kernel style

2018-05-07T13:34:12+00:00

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

edid: Use sizeof() in cea_is_hdmi_vsdb_present()

2017-06-12T12:38:06+00:00

We should not use an open-coded value here. Use sizeof() instead. Signed-off-by: Simon Glass Reported-by: Coverity (CID: 163252) Fixes: 43c6bdd0 (edid: Add HDMI flag to timing info)

edid: Fix gcc 7.1 warning

2017-06-09T13:29:59+00:00

This commit fixes the warning produced by gcc 7.1. Signed-off-by: Jernej Skrabec Reviewed-by: Tom Rini Reviewed-by: Simon Glass

edid: Add HDMI flag to timing info

2017-05-15T18:32:12+00:00

Some DVI monitors don't show anything in HDMI mode since audio stream confuses them. To solve this situation, this commit adds HDMI flag in timing data and sets it accordingly during edid parsing. First existence of extension block is checked. If it exists and it is CEA861 extension, then data blocks are checked for presence of HDMI vendor specific data block. If it is present, HDMI flag is set. Signed-off-by: Jernej Skrabec Reviewed-by: Simon Glass