drm/bridge/sii8620: fix disconnect sequence

The patch allows to avoid rare cases when discovery fails.

Change-Id: I29094f719f8a2ec23a74b0c7981bf80e9a6200d3
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>

diff --git a/drivers/gpu/drm/bridge/sil-sii8620.c b/drivers/gpu/drm/bridge/sil-sii8620.c
index 36ea0d0d2d335ae5394e74c5cd87ce4aaeb808e2..46fb89d20ccb58f4adb8df28cd7afce2bdb5226d 100644 (file)
--- a/drivers/gpu/drm/bridge/sil-sii8620.c
+++ b/drivers/gpu/drm/bridge/sil-sii8620.c
@@ -1279,10 +1279,12 @@ static void sii8620_disconnect(struct sii8620 *ctx)
 {
        sii8620_disable_gen2_write_burst(ctx);
        sii8620_stop_video(ctx);
-       msleep(50);
+       msleep(100);
        sii8620_cbus_reset(ctx);
        sii8620_set_mode(ctx, CM_DISCONNECTED);
        sii8620_write_seq_static(ctx,
+               REG_TX_ZONE_CTL1, 0,
+               REG_MHL_PLL_CTL0, 0x07,
                REG_COC_CTL0, 0x40,
                REG_CBUS3_CNVT, 0x84,
                REG_COC_CTL14, 0x00,