The function will also be used by a later patch, so factor it out.
Signed-off-by: Stefan Brüns <stefan.bruens@xxxxxxxxxxxxxx>
---
drivers/gpu/drm/drm_edid.c | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index ec4f91f..b072041 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -1048,8 +1048,7 @@ bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid)
}
}
- for (i = 0; i < EDID_LENGTH; i++)
- csum += raw_edid[i];
+ csum = drm_edid_block_checksum(raw_edid);
if (csum) {
if (print_bad_edid) {
DRM_ERROR("EDID checksum is invalid, remainder is %d\n", csum);
@@ -1188,6 +1187,17 @@ static bool drm_edid_is_zero(u8 *in_edid, int length)
return true;
}
+static u8
+drm_edid_block_checksum(u8 *raw_edid)
+{
+ int i;
+ u8 csum = 0;
+ for (i = 0; i < EDID_LENGTH; i++)
+ csum += raw_edid[i];
+
+ return csum;
+}
+
static u8 *
drm_do_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter)
{
--
2.1.2
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