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drm/edid: abstract override/firmware EDID retrieval

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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
This commit is contained in:
Jani Nikula 2019-06-07 14:05:12 +03:00
parent de060de333
commit 56a2b7f2a3
1 changed files with 17 additions and 8 deletions
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25
drivers/gpu/drm/drm_edid.c
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@ -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;
struct edid *override;
if (connector->override_edid)
override = drm_edid_duplicate(connector->edid_blob_ptr->data);
if (!override)
override = drm_load_edid_firmware(connector);
if (!IS_ERR_OR_NULL(override))
override = drm_get_override_edid(connector);
if (override)
return override;
if ((edid = kmalloc(EDID_LENGTH, GFP_KERNEL)) == NULL)