[PATCH 0/4] drm/imx: fix TVE / HDMI coexistence

Dmitry Baryshkov dmitry.baryshkov at oss.qualcomm.com
Mon Aug 10 07:51:45 PDT 2026


Testing MCIMXHDMICARD on IMX53 QSRB platform revealed that the HDMI
output is broken. The TVE output (even unconnected) forces the PLL4
frequency, breaking the frequency selected for the HDMI output. Fix
those issue, making TVE stop grabbing the PLL4 frequency (by correctly
reporting if it is unconnected).

While we are at it, fix two plane-related issues, which are now reported
by DRM.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at oss.qualcomm.com>
---
Dmitry Baryshkov (4):
      drm/imx: ipuv3-plane: do not advertise separate alpha formats on DC planes
      drm/imx: ipuv3-plane: add the pixel blend mode property
      drm/imx: imx-tve: probe DDC before claiming the connector is connected
      gpu: ipu-v3: di: report an unattainable pixel clock

 drivers/gpu/drm/imx/ipuv3/imx-tve.c     |  1 +
 drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c | 49 +++++++++++++++++++++++++--------
 drivers/gpu/ipu-v3/ipu-di.c             | 16 +++++++++++
 3 files changed, 55 insertions(+), 11 deletions(-)
---
base-commit: 6b8c8af514d739d0335f5579b585e02babe8a727
change-id: 20260810-imx53-fix-hdmi-03129d798678

Best regards,
--  
With best wishes
Dmitry




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