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drm/edid: use struct drm_edid for override/firmware EDID

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There's a lot going on here, but the main thing is switching the
firmware EDID loader to use struct drm_edid. Unfortunately, it's
difficult to reasonably split to smaller pieces.

Convert the EDID loader to struct drm_edid. There's a functional change
in validation; it no longer tries to fix errors or filter invalid
blocks. It's stricter in this sense. Hopefully this will not be an
issue.

As a by-product, this change also allows HF-EEODB extended EDIDs to be
passed via override/firmware EDID.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/e64267c28eca483e83c802bc06ddd149bdcdfc66.1666614699.git.jani.nikula@intel.com
This commit is contained in:
Jani Nikula
2022-10-24 15:33:40 +03:00
parent a05992d5ea
commit 794aca0ec2
3 changed files with 37 additions and 87 deletions
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4
include/drm/drm_edid.h
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@@ -388,11 +388,11 @@ int drm_av_sync_delay(struct drm_connector *connector,
const struct drm_display_mode *mode);
#ifdef CONFIG_DRM_LOAD_EDID_FIRMWARE
struct edid *drm_edid_load_firmware(struct drm_connector *connector);
const struct drm_edid *drm_edid_load_firmware(struct drm_connector *connector);
int __drm_set_edid_firmware_path(const char *path);
int __drm_get_edid_firmware_path(char *buf, size_t bufsize);
#else
static inline struct edid *
static inline const struct drm_edid *
drm_edid_load_firmware(struct drm_connector *connector)
{
return ERR_PTR(-ENOENT);