diff options
| author | Julien Stephan <[email protected]> | 2025-06-30 12:08:16 +0200 |
|---|---|---|
| committer | Tom Rini <[email protected]> | 2025-12-30 11:22:57 -0600 |
| commit | 5e9b0b56ad8c2a4289b2b506ad3d0f3acd0d20ba (patch) | |
| tree | 6a39e7d920a1089506083bb62e794cceca259c66 /include/display.h | |
| parent | 5b2ee2c4a200961fa92ab1f2f2502ee41905257e (diff) | |
cmd: add new command to read edid
Add a new command to read EDID info from connected display.
When applicable EDID can also be retrieved by commands such as:
i2c dev x
i2c edid 0x50
but the new read_edid function relies on the implementation of the
read_edid callback from DISPLAY driver.
Signed-off-by: Julien Stephan <[email protected]>
Diffstat (limited to 'include/display.h')
| -rw-r--r-- | include/display.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/display.h b/include/display.h index e8d8aaa15fb..26b965daba9 100644 --- a/include/display.h +++ b/include/display.h @@ -26,6 +26,16 @@ struct display_plat { }; /** + * display_read_edid() - Read edid from display + * + * @dev: Device to read from + * @buf: Buffer to read into (should be EDID_SIZE bytes) + * @buf_size: Buffer size (should be EDID_SIZE) + * Return number of bytes read, <= 0 for error + */ +int display_read_edid(struct udevice *dev, u8 *buf, int buf_size); + +/** * display_read_timing() - Read timing information * * @dev: Device to read from |