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| author | Jani Nikula <jani.nikula@intel.com> | 2024-04-09 11:46:09 +0200 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2024-04-15 14:42:40 +0200 |
| commit | 3ddbd345539eb89cb1ccceb79ef0a3c150aeebbf (patch) | |
| tree | ceadd27e5b17760b9eea85bbbb3dda0c3cd5637f /drivers/gpu/drm/drm_edid.c | |
| parent | drm: fix DRM_DISPLAY_DP_HELPER dependencies, part 2 (diff) | |
| download | linux-3ddbd345539eb89cb1ccceb79ef0a3c150aeebbf.tar.xz linux-3ddbd345539eb89cb1ccceb79ef0a3c150aeebbf.zip | |
drm/edid: add drm_edid_get_product_id()
Add a struct drm_edid based function to get the vendor and product ID
from an EDID. Add a separate struct for defining this part of the EDID,
with defined byte order for manufacturer name, product code and serial
number.
v2: Define manufacturer_name as __be16 instead of u8[2] (Ville)
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Melissa Wen <mwen@igalia.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/df0e7dedbf7f2c190039d6e6eae3e126eba113c9.1712655867.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 | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index ea77577a3786..626a0e24e66a 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -2757,6 +2757,21 @@ const struct drm_edid *drm_edid_read(struct drm_connector *connector) EXPORT_SYMBOL(drm_edid_read); /** + * drm_edid_get_product_id - Get the vendor and product identification + * @drm_edid: EDID + * @id: Where to place the product id + */ +void drm_edid_get_product_id(const struct drm_edid *drm_edid, + struct drm_edid_product_id *id) +{ + if (drm_edid && drm_edid->edid && drm_edid->size >= EDID_LENGTH) + memcpy(id, &drm_edid->edid->product_id, sizeof(*id)); + else + memset(id, 0, sizeof(*id)); +} +EXPORT_SYMBOL(drm_edid_get_product_id); + +/** * drm_edid_get_panel_id - Get a panel's ID from EDID * @drm_edid: EDID that contains panel ID. * |