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[129.46.232.65]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-51768c76e53sm12480851cf.4.2026.06.02.02.11.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 02 Jun 2026 02:11:20 -0700 (PDT) From: Yongxing Mou Subject: [PATCH v6 00/15] drm/msm/dp: Prerequisite cleanup for upcoming MST support Date: Tue, 02 Jun 2026 17:11:12 +0800 Message-Id: <20260602-dp_mstclean-v6-0-2c17ff40a9b2@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIADCeHmoC/22Oyw6CMBBFf4XM2po+oA9X/ocxppSpNBGQFojG8 O9W2Lq5ybnJnLkfSBgDJjgVH4i4hBSGPoM8FOBa29+RhCYzcMolrbgmzfPWpck90PbEU1M6tNp ZXkK+eEb04bXZLtedI45zlk57CbVNSNzQdWE6FagaRSmy0ogSpfZaCqFdJRl1nltUUhldSyng5 2pDmob43oYu1Sb7u2mpCCXWcM4c88yL+jykdBxn+/i9PeaA67quX4ItB4T5AAAA X-Change-ID: 20260528-dp_mstclean-f094cea8ca24 To: Rob Clark , Dmitry Baryshkov , Abhinav Kumar , Jessica Zhang , Sean Paul , Marijn Suijten , David Airlie , Simona Vetter Cc: linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org, Yongxing Mou , Dmitry Baryshkov , Abhinav Kumar X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1780391476; l=3278; i=yongxing.mou@oss.qualcomm.com; s=20250910; h=from:subject:message-id; bh=MvPTm+UIjOY/okBZfSTmYHFCIp4/Opc3YSafdUHz3a4=; b=EKTp8h2GS4NyoMMz35w3D43Rb65ZX5PCIiKJ0pdIRdFqY+m+I/GdUEGRzbcup8zxWixmVRcaH i2uNDWIvpNvAipnF+j5y0z6ez+C4qAJnm5kKUiL8PKbFRHrQqaIlQaY X-Developer-Key: i=yongxing.mou@oss.qualcomm.com; a=ed25519; pk=rAy5J1eP+V7OXqH5FJ7ngMCtUrnHhut30ZTldOj52UM= X-Authority-Analysis: v=2.4 cv=WKRPmHsR c=1 sm=1 tr=0 ts=6a1e9e3a cx=c_pps a=mPf7EqFMSY9/WdsSgAYMbA==:117 a=C3Dk8TwHQYyIj7nOf9RCJw==:17 a=IkcTkHD0fZMA:10 a=FelO9ux0wxsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=YMgV9FUhrdKAYTUUvYB2:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=vykuwZLdp5Yjkddl-pAA:9 a=QEXdDO2ut3YA:10 a=dawVfQjAaf238kedN5IG:22 X-Proofpoint-GUID: GoZWlwkYF95k3LPr4NLGa7H8FlU-iaRR X-Proofpoint-ORIG-GUID: GoZWlwkYF95k3LPr4NLGa7H8FlU-iaRR X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjAyMDA4NSBTYWx0ZWRfX0QmUvxwQRN/k Z9s1KykPUUtvZ65jkTjBcIJUWiN5iXshXCe/jrFCwYxs8a0ui5G9k2AVjZD9c7JYKMPxIlkxAiR bLfCtPSTenzQrATcASsm7SCwqrwlWBB8u8Bg4NTmQivNzi0aEcl3PVOakmgaueQJAjJsh7gwLf+ fT/tnxTjjH9EgsWzbG+q3AyGPG/Pb/NPV3cpSe/eLg2bFnTBRZlGdtwxMpBsX9uADv2a+AsMhbq fprZL3UZLrTLoK3m6BR/FQ0Mp+QPWjVgzgM5IGyhEPO4H0q9ICU+FGTJsqjcwPw57RA7VWWO1Gj vWmavcT6IhESPXBGqjqbEcWjqA+QS8/rcNvQpTCtYa116Y40cfQLVeUaRhGGCyJbCDg5YqTeSsE nMRUDMmCW0ojGChIKjCe5fr0U2cNGEv6oEV7aFJ3TOJywSMSDcA0ZUlG6cqzv52Q2DTBZ2T+ftL LnVpq7Vm3yCRUK1c9vw== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-06-01_07,2026-05-28_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 spamscore=0 suspectscore=0 lowpriorityscore=0 adultscore=0 malwarescore=0 phishscore=0 priorityscore=1501 clxscore=1015 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605210000 definitions=main-2606020085 This series is the SST-only prerequisite portion of the MSM DP MST work. It refactors the existing DP code paths so that MST can plug in cleanly in a follow-up series, without bundling the cleanup with MST functionality in the same submission. SST behaviour is preserved end-to-end; no new functionality is added here. The intent is to land these refactors first to keep the follow-up MST series focused, smaller, and easier to review. Signed-off-by: Yongxing Mou --- Changes in v6: - patch 4: fixed the RMW comments. [Dmitry] - patch 10: do not rename the existing struct. [Dmitry] - Link to v5: https://lore.kernel.org/r/20260528-dp_mstclean-v5-0-a9221c1f1f3b@oss.qualcomm.com Changes in v5: - Split out from v4: only the SST prerequisite cleanup (patches 1-15) is sent here; the MST implementation will follow on top. - Rebased onto linux-next-20260527; adapted bridge callbacks to the new drm_atomic_commit* API. - patch 3: added Suggested-by: Dmitry Baryshkov. - patch 4: fixed "splite" typo, reworded body, added RMW comment covering both SST and MST paths. [Dmitry] - patch 10: drop cached panel from msm_dp_ctrl_private; pass panel explicitly to all stream-related dp_ctrl APIs. [Dmitry] - patch 13/14: introduce bridge wrappers and atomic_prepare with drm_atomic_commit* from the start to preserve bisectability. - patch 15: fixed pass panel inside the func. [Dmitry] - Link to v4: https://lore.kernel.org/all/20260410-msm-dp-mst-v4-0-b20518dea8de@oss.qualcomm.com/ --- Abhinav Kumar (6): drm/msm/dp: break up dp_display_enable into two parts drm/msm/dp: re-arrange dp_display_disable() into functional parts drm/msm/dp: allow dp_ctrl stream APIs to use any panel passed to it drm/msm/dp: split dp_ctrl_off() into stream and link parts drm/msm/dp: make bridge helpers use dp_display to allow re-use drm/msm/dp: separate dp_display_prepare() into its own API Yongxing Mou (9): drm/msm/dp: remove cached drm_edid from panel drm/msm/dp: drop deprecated .mode_set() and use .atomic_enable drm/msm/dp: move mode setup into msm_dp_panel_init_panel_info() drm/msm/dp: split msm_dp_ctrl_config_ctrl() into link parts and stream parts drm/msm/dp: extract MISC1_MISC0 configuration into a separate function drm/msm/dp: split link setup from source params drm/msm/dp: move the pixel clock control to its own API drm/msm/dp: simplify link and clock disable sequence drm/msm/dp: pass panel to display enable/disable helpers drivers/gpu/drm/msm/dp/dp_ctrl.c | 383 ++++++++++++++++++++---------------- drivers/gpu/drm/msm/dp/dp_ctrl.h | 30 ++- drivers/gpu/drm/msm/dp/dp_display.c | 273 ++++++++++++------------- drivers/gpu/drm/msm/dp/dp_display.h | 8 + drivers/gpu/drm/msm/dp/dp_drm.c | 43 +++- drivers/gpu/drm/msm/dp/dp_drm.h | 12 -- drivers/gpu/drm/msm/dp/dp_panel.c | 75 ++----- drivers/gpu/drm/msm/dp/dp_panel.h | 17 +- 8 files changed, 452 insertions(+), 389 deletions(-) --- base-commit: e7d700e14934e68f86338c5610cf2ae76798b663 change-id: 20260528-dp_mstclean-f094cea8ca24 Best regards, -- Yongxing Mou