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authorJani Nikula <jani.nikula@intel.com>2019-06-07 14:05:12 +0300
committerJani Nikula <jani.nikula@intel.com>2019-06-12 12:51:05 +0300
commit56a2b7f2a39a8d4b16a628e113decde3d7400879 (patch)
treeec05a2dc902f3508b04d722a9ed2ae5fe5b35956 /drivers/gpu
parentde060de333eff20c1c2dad0139983f19150f776b (diff)
downloadlinux-56a2b7f2a39a8d4b16a628e113decde3d7400879.tar.bz2
drm/edid: abstract override/firmware EDID retrieval
Abstract the debugfs override and the firmware EDID retrieval function. We'll be needing it in the follow-up. No functional changes. Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Harish Chegondi <harish.chegondi@intel.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Tested-by: Tested-by: Paul Wise <pabs3@bonedaddy.net> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190607110513.12072-1-jani.nikula@intel.com
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/drm_edid.c25
1 files changed, 17 insertions, 8 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 649cfd8b4200..c1952b6e5747 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -1570,6 +1570,20 @@ static void connector_bad_edid(struct drm_connector *connector,
}
}
+/* Get override or firmware EDID */
+static struct edid *drm_get_override_edid(struct drm_connector *connector)
+{
+ struct edid *override = NULL;
+
+ if (connector->override_edid)
+ override = drm_edid_duplicate(connector->edid_blob_ptr->data);
+
+ if (!override)
+ override = drm_load_edid_firmware(connector);
+
+ return IS_ERR(override) ? NULL : override;
+}
+
/**
* drm_do_get_edid - get EDID data using a custom EDID block read function
* @connector: connector we're probing
@@ -1597,15 +1611,10 @@ struct edid *drm_do_get_edid(struct drm_connector *connector,
{
int i, j = 0, valid_extensions = 0;
u8 *edid, *new;
- struct edid *override = NULL;
-
- if (connector->override_edid)
- override = drm_edid_duplicate(connector->edid_blob_ptr->data);
-
- if (!override)
- override = drm_load_edid_firmware(connector);
+ struct edid *override;
- if (!IS_ERR_OR_NULL(override))
+ override = drm_get_override_edid(connector);
+ if (override)
return override;
if ((edid = kmalloc(EDID_LENGTH, GFP_KERNEL)) == NULL)