Shikra (QCM2390) is a Qualcomm SoC based on the QCM2290 family that reuses the same MDSS/DPU 6.5 hardware as QCM2290. This series enables the display subsystem for Shikra by adding DT binding updates for MDSS, DSI controller and DPU and UBWC configuration mapping Shikra to qcm2290_data.
Driver and SMMU support are covered by the existing qcom,qcm2290-mdss fallback compatible string — no separate drm/msm or IOMMU patches are required. Tested on Shikra CQM EVK board with ILI7807S DSI panel. Display pipeline probes cleanly and panel renders correctly. Signed-off-by: Nabige Aala <[email protected]> --- Nabige Aala (2): dt-bindings: display: msm: qcm2290: Add Shikra MDSS soc: qcom: ubwc: Add Shikra UBWC config Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml | 4 ++++ Documentation/devicetree/bindings/display/msm/qcom,qcm2290-dpu.yaml | 6 +++++- Documentation/devicetree/bindings/display/msm/qcom,qcm2290-mdss.yaml | 19 ++++++++++++------- drivers/soc/qcom/ubwc_config.c | 1 + 4 files changed, 22 insertions(+), 8 deletions(-) --- Prerequisite-Message-Id: <[email protected]> --- Changes in v4: - Fix sort order of qcom,shikra-dsi-ctrl entry in dsi-controller-main.yaml - Replace oneOf in qcm2290-mdss patternProperties DPU compatible with contains: qcom,qcm2290-dpu, consistent with DSI child node pattern - Drop arm64: defconfig: Enable ILI7807S DSI panel driver from this series; will be sent separately alongside device tree changes - Link to v3: https://patch.msgid.link/[email protected] Changes in v3: - Use a fallback compatible chain for qcom,shikra-dsi-ctrl in dsi-controller-main.yaml instead of a standalone enum entry, with qcom,qcm2290-dsi-ctrl and qcom,mdss-dsi-ctrl as fallbacks - Replace oneOf in qcm2290-mdss patternProperties DSI compatible with contains: qcom,qcm2290-dsi-ctrl to avoid duplicating full chain validation already handled by dsi-controller-main.yaml - Drop unnecessary select: block from qcom,qcm2290-mdss.yaml; default dt-validate compatible matching is sufficient - Remove self from qcom,qcm2290-mdss.yaml maintainers list - Link to v2: https://patch.msgid.link/[email protected] Changes in v2: - Drop drm/msm/mdss: Shikra support patch; driver reuse is handled via the qcom,qcm2290-mdss fallback compatible string (per Dmitry's review) - Drop iommu/arm-smmu: Shikra SMMU client table patch; not required with fallback compatible approach - Fix UBWC config to map qcom,shikra to qcm2290_data instead of no_ubwc_data; Shikra shares UBWC support with QCM2290 - Refactor series from 5 patches to 3 patches - Link to v1: https://patch.msgid.link/[email protected] --- Nabige Aala (2): dt-bindings: display: msm: qcm2290: Add Shikra MDSS soc: qcom: ubwc: Add Shikra UBWC config .../bindings/display/msm/dsi-controller-main.yaml | 4 ++++ .../bindings/display/msm/qcom,qcm2290-dpu.yaml | 6 +++++- .../bindings/display/msm/qcom,qcm2290-mdss.yaml | 19 ++++++++++++------- drivers/soc/qcom/ubwc_config.c | 1 + 4 files changed, 22 insertions(+), 8 deletions(-) --- base-commit: 3a34f9c13cc0688f8db2a0db8506bf8c0d90737d change-id: 20260603-shikra-display-07767208fa90 Best regards, -- Nabige Aala <[email protected]>
