diff options
| author | Neil Armstrong <narmstrong@baylibre.com> | 2019-07-04 15:52:06 +0200 |
|---|---|---|
| committer | Anatolij Gustschin <agust@denx.de> | 2019-07-29 00:21:40 +0200 |
| commit | 1c1ed441b0d1d7d5fbf02cf89a390c04b18f8ba3 (patch) | |
| tree | 9cbc29594340cd3961a60ed1800d6ef7dc5053f7 /include | |
| parent | 245b1029e1af8b2e71c6d7aebc7d68bdebd644d3 (diff) | |
edid: add edid_get_timing_validate() variant to filter out edid modes
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 <narmstrong@baylibre.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/edid.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/edid.h b/include/edid.h index f05d2b82f2..2562733061 100644 --- a/include/edid.h +++ b/include/edid.h @@ -307,6 +307,28 @@ int edid_get_ranges(struct edid1_info *edid, unsigned int *hmin, struct display_timing; /** + * edid_get_timing_validate() - Get basic digital display parameters with + * mode selection callback + * + * @param buf Buffer containing EDID data + * @param buf_size Size of buffer in bytes + * @param timing Place to put preferring timing information + * @param panel_bits_per_colourp Place to put the number of bits per + * colour supported by the panel. This will be set to + * -1 if not available + * @param mode_valid Callback validating mode, returning true is mode is + * supported, false otherwise. + * @parem valid_priv Pointer to private data for mode_valid callback + * @return 0 if timings are OK, -ve on error + */ +int edid_get_timing_validate(u8 *buf, int buf_size, + struct display_timing *timing, + int *panel_bits_per_colourp, + bool (*mode_valid)(void *priv, + const struct display_timing *timing), + void *mode_valid_priv); + +/** * edid_get_timing() - Get basic digital display parameters * * @param buf Buffer containing EDID data |