[ Sasha's backport helper bot ]
Hi,
Summary of potential issues: ⚠️ Provided upstream commit SHA1 does not match found commit ℹ️ Patch is missing in 6.13.y (ignore if backport was sent) ⚠️ Commit missing in all newer stable branches
The claimed upstream commit SHA1 (76120b3a304aec28fef4910204b81a12db8974da) was not found. However, I found a matching commit: 879f70382ff3e92fc854589ada3453e3f5f5b601
Status in newer kernel trees: 6.13.y | Not found 6.6.y | Not found
Note: The patch differs from the upstream commit: --- 1: 879f70382ff3e ! 1: 087834a498981 drm/i915/dsi: Use TRANS_DDI_FUNC_CTL's own port width macro @@ Metadata ## Commit message ## drm/i915/dsi: Use TRANS_DDI_FUNC_CTL's own port width macro
+ commit 76120b3a304aec28fef4910204b81a12db8974da upstream. + The format of the port width field in the DDI_BUF_CTL and the TRANS_DDI_FUNC_CTL registers are different starting with MTL, where the x3 lane mode for HDMI FRL has a different encoding in the two registers. @@ Commit message Link: https://patchwork.freedesktop.org/patch/msgid/20250214142001.552916-2-imre.d... (cherry picked from commit 76120b3a304aec28fef4910204b81a12db8974da) Signed-off-by: Rodrigo Vivi rodrigo.vivi@intel.com + (cherry picked from commit 879f70382ff3e92fc854589ada3453e3f5f5b601) + [Imre: Rebased on v6.12.y, due to upstream API changes in + intel_de_read(), TRANS_DDI_FUNC_CTL()] + Signed-off-by: Imre Deak imre.deak@intel.com
## drivers/gpu/drm/i915/display/icl_dsi.c ## @@ drivers/gpu/drm/i915/display/icl_dsi.c: gen11_dsi_configure_transcoder(struct intel_encoder *encoder, /* select data lane width */ - tmp = intel_de_read(display, - TRANS_DDI_FUNC_CTL(display, dsi_trans)); + tmp = intel_de_read(dev_priv, + TRANS_DDI_FUNC_CTL(dev_priv, dsi_trans)); - tmp &= ~DDI_PORT_WIDTH_MASK; - tmp |= DDI_PORT_WIDTH(intel_dsi->lane_count); + tmp &= ~TRANS_DDI_PORT_WIDTH_MASK; ---
Results of testing on various branches:
| Branch | Patch Apply | Build Test | |---------------------------|-------------|------------| | stable/linux-6.12.y | Success | Success |