[PATCH 1/2] drm/edid: new drm_edid_block_checksum helper function

Signed-off-by: Stefan Brüns stefan.bruens@rwth-aachen.de --- drivers/gpu/drm/drm_edid.c | 11 +++++++++++ 1 file changed, 11 insertions(+)

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 0755d01..505960e 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -1184,6 +1184,17 @@ 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) {