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The LCDIF embedded in i.MX93 SoC is essentially the same to those embedded in i.MX8mp SoC. Through internal bridges, i.MX93 LCDIF may drive a MIPI DSI display or a LVDS display or a parallel display. Patch 1/6 adds device tree binding support for i.MX93 LCDIF in the existing fsl,lcdif.yaml. Patch 2/6 drops lcdif->bridge NULL pointer check as a cleanup patch. Patch 3/6~5/6 prepare for adding i.MX93 LCDIF support step by step. Patch 6/6 adds i.MX93 LCDIF compatible string as the last step of adding i.MX93 LCDIF support. v3->v4: * Improve warning message when ignoring invalid LCDIF OF endpoint ids in patch 5/6. (Alexander) * Use 'new_{c,p}state' instead of 'new_{crtc,plane}_state' in patch 3/6. (Alexander) * Simplify lcdif_crtc_reset() by calling lcdif_crtc_atomic_destroy_state() in patch 3/6. (Alexander) * Add '!crtc->state' check in lcdif_crtc_atomic_duplicate_state() in patch 3/6. (Alexander) * Collect Alexander's R-b tags on patch 1/6, 2/6 and 6/6. v2->v3: * Fix a trivial typo in patch 6/6's commit message. v1->v2: * Add Krzysztof's A-b and Marek's R-b tags on patch 1/6. * Split patch 2/2 in v1 into patch 2/6~6/6 in v2. (Marek, Alexander) * Drop '!remote ||' from lcdif_attach_bridge(). (Lothar) * Add comment on the 'base' member of lcdif_crtc_state structure to note it should always be the first member. (Lothar) * Drop unneeded 'bridges' member from lcdif_drm_private structure. * Drop a comment about bridge input bus format from lcdif_crtc_atomic_check(). Liu Ying (6): dt-bindings: lcdif: Add i.MX93 LCDIF support drm: lcdif: Drop unnecessary NULL pointer check on lcdif->bridge drm: lcdif: Determine bus format and flags in ->atomic_check() drm: lcdif: Check consistent bus format and flags across first bridges drm: lcdif: Add multiple encoders and first bridges support drm: lcdif: Add i.MX93 LCDIF compatible string .../bindings/display/fsl,lcdif.yaml | 7 +- drivers/gpu/drm/mxsfb/lcdif_drv.c | 71 ++++++- drivers/gpu/drm/mxsfb/lcdif_drv.h | 5 +- drivers/gpu/drm/mxsfb/lcdif_kms.c | 198 ++++++++++++------ 4 files changed, 206 insertions(+), 75 deletions(-) -- 2.37.1