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Subject[PATCH 5.1 112/115] drm/edid: abstract override/firmware EDID retrieval
Date
From: Jani Nikula <jani.nikula@intel.com>

commit 56a2b7f2a39a8d4b16a628e113decde3d7400879 upstream.

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
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/gpu/drm/drm_edid.c | 25 +++++++++++++++++--------
1 file changed, 17 insertions(+), 8 deletions(-)

--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -1580,6 +1580,20 @@ static void connector_bad_edid(struct dr
}
}

+/* 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
@@ -1607,15 +1621,10 @@ struct edid *drm_do_get_edid(struct drm_
{
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)

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