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| author | Jani Nikula <jani.nikula@intel.com> | 2024-04-16 11:19:58 +0200 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2024-04-17 15:11:32 +0200 |
| commit | 0ac57ca35974acc1633806f7d20a52b8a0e23a88 (patch) | |
| tree | bdc3520206b6507535a15bbd2764c2b971db090c /drivers/gpu/drm/drm_edid.c | |
| parent | drm/edid: rename drm_find_edid_extension() to drm_edid_find_extension() (diff) | |
| download | linux-0ac57ca35974acc1633806f7d20a52b8a0e23a88.tar.xz linux-0ac57ca35974acc1633806f7d20a52b8a0e23a88.zip | |
drm/edid: avoid drm_edid_find_extension() internally
Prefer the EDID iterators over drm_edid_find_extension() in
drm_edid_has_cta_extension(), even if this leads to more code. The key
is to use the same patterns as much as possible.
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/9fa366147b06a28304527be48f1b363c3484c8a3.1713259151.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'drivers/gpu/drm/drm_edid.c')
| -rw-r--r-- | drivers/gpu/drm/drm_edid.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index c29f31dcc818..4b3ad42a8f95 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -4230,11 +4230,21 @@ static bool drm_edid_has_cta_extension(const struct drm_edid *drm_edid) { const struct displayid_block *block; struct displayid_iter iter; - int ext_index = 0; + struct drm_edid_iter edid_iter; + const u8 *ext; bool found = false; /* Look for a top level CEA extension block */ - if (drm_edid_find_extension(drm_edid, CEA_EXT, &ext_index)) + drm_edid_iter_begin(drm_edid, &edid_iter); + drm_edid_iter_for_each(ext, &edid_iter) { + if (ext[0] == CEA_EXT) { + found = true; + break; + } + } + drm_edid_iter_end(&edid_iter); + + if (found) return true; /* CEA blocks can also be found embedded in a DisplayID block */ |