target/linux/layerscape/patches-5.4/805-display-0021-DRM-mhdp-HDMI-skip-scdc-write-return-check.patch

   1 From 74c383e7da3e20c201e3b0c847a3d2f6fa0dbdc6 Mon Sep 17 00:00:00 2001
   2 From: Sandor Yu <Sandor.yu@nxp.com>
   3 Date: Sun, 29 Sep 2019 14:48:28 +0800
   4 Subject: [PATCH] DRM: mhdp: HDMI: skip scdc write return check
   5
   6 HDMI sink that only support HDMI1.4 is not support
   7 SCDC read/write. Skip the SCDC write check and continue
   8 HDMI initialize process.
   9
  10 Signed-off-by: Sandor Yu <Sandor.yu@nxp.com>
  11 ---
  12  drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c | 6 ++----
  13  1 file changed, 2 insertions(+), 4 deletions(-)
  14
  15 --- a/drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c
  16 +++ b/drivers/gpu/drm/bridge/cadence/cdns-hdmi-core.c
  17 @@ -173,10 +173,8 @@ void cdns_hdmi_mode_set(struct cdns_mhdp
  18         int ret;
  19
  20         ret = hdmi_sink_config(mhdp);
  21 -       if (ret < 0) {
  22 -               DRM_ERROR("%s failed\n", __func__);
  23 -               return;
  24 -       }
  25 +       if (ret < 0)
  26 +               DRM_DEBUG("%s failed\n", __func__);
  27
  28         ret = cdns_hdmi_ctrl_init(mhdp, mhdp->hdmi.hdmi_type, mhdp->hdmi.char_rate);
  29         if (ret < 0) {