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[129.46.232.65]) by smtp.gmail.com with ESMTPSA id af79cd13be357-9260079070bsm2143165885a.40.2026.06.29.07.16.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 29 Jun 2026 07:16:26 -0700 (PDT) From: Yongxing Mou To: Rob Clark , Dmitry Baryshkov , Abhinav Kumar , Sean Paul , Marijn Suijten , David Airlie , Simona Vetter , Jessica Zhang Cc: linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org, Abhinav Kumar Subject: [PATCH RESEND v5 16/25] drm/msm/dp: add msm_dp_display_get_panel() to initialize DP panel Date: Mon, 29 Jun 2026 22:14:37 +0800 Message-ID: <20260629-msm-dp-mst-v5-16-2ed6aee1867a@oss.qualcomm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260629-msm-dp-mst-v5-0-2ed6aee1867a@oss.qualcomm.com> References: <20260629-msm-dp-mst-v5-0-2ed6aee1867a@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" X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1782742144; l=2339; i=yongxing.mou@oss.qualcomm.com; s=20250910; h=from:subject:message-id; bh=cRES0c0OGAe+Wq5TijiVC3vsN9LDNpp2DEfSA/mpQKY=; b=arKuHVPqm5eA3L5paw1TwrwN8uIZnY3e8pB52q2qrkpMOOAvN7es+uYpYWWqugJ/7BI/mope1 lAb8WvzTnvMCm+B6qi8tnPyqwNVeBc9l+iSVedt5PO3t3w2TgcGLGaO X-Developer-Key: i=yongxing.mou@oss.qualcomm.com; a=ed25519; pk=rAy5J1eP+V7OXqH5FJ7ngMCtUrnHhut30ZTldOj52UM= Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjI5MDExOCBTYWx0ZWRfX9V73DoPLqcZc MZB+7DNfPlg/CD4MeZ78IhHVt/6e4fQ66DroH3V7VHQq+yhNF34eBnaytyBhro02MeQxq4v8NsA Q7B3nYBSE7bdzdUAi9Kfngn0Eye0h0cDtqrJyPo9Sl5f6RCDuETrF6kakbZSEE98oTYKukYf999 5iVeRiKl+SSyTyF8D4xjd98S2k4m1oVfLMDWH6a3C2seG7jTVDJPs2guoo/h/fefNwp6dG2PQbx RVhrsBDffMjUPMQFMtFbI3Ywi399t0sgyCGaYY7Cc4ysqkfoWXgh538u+z345VGpMgmi7RGb84k /kKmglmHsQ/k+x5PRDZNVjxIaKB988IJCd8Kq82CcSFtLbOPWTQvhhkfG4BfXOZVym5mUiINDRW atpY1wO8DmJUnI/Yu17BnPAyh3v6VAdWKAUzx7JX3CkNf9Z6UBlGdlXOKA3t9pEhVHR63JZa2g9 Kh1NW/F5SmwzGhJvz0A== X-Authority-Analysis: v=2.4 cv=R58z39RX c=1 sm=1 tr=0 ts=6a427e3e cx=c_pps a=5HAIKLe1ejAbszaTRHs9Ug==:117 a=C3Dk8TwHQYyIj7nOf9RCJw==:17 a=IkcTkHD0fZMA:10 a=FelO9ux0wxsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=Um2Pa8k9VHT-vaBCBUpS:22 a=COk6AnOGAAAA:8 a=EUspDBNiAAAA:8 a=6cFZRJIsygQ8aEszaMkA:9 a=QEXdDO2ut3YA:10 a=gYDTvv6II1OnSo0itH1n:22 a=TjNXssC_j7lpFel5tvFf:22 X-Proofpoint-Spam-Info: AW1haW4tMjYwNjI5MDExOCBTYWx0ZWRfXxWyxVQHSVLj+ OUlDrECcPhVW4qAYvBcTQcXbo1S/jxZoudl30dpwnKRjG7PZOxV+kN5yTva8ZmTczqvKWaBbPMf ztNFCzVheVNbnhnHHZoF80NqjqIuYQc= X-Proofpoint-ORIG-GUID: L327VtlXfcuBrpfk5GWp2-IM6tFHj4WO X-Proofpoint-GUID: L327VtlXfcuBrpfk5GWp2-IM6tFHj4WO 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=2026-06-29_03,2026-06-26_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 spamscore=0 suspectscore=0 phishscore=0 clxscore=1015 adultscore=0 malwarescore=0 priorityscore=1501 bulkscore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2606290118 From: Abhinav Kumar Add an API msm_dp_display_get_panel() to initialize and return a DP panel to be used by DP MST module. Since some of the fields of DP panel are private, dp_display module needs to initialize these parts and return the panel back. Signed-off-by: Abhinav Kumar Signed-off-by: Yongxing Mou --- drivers/gpu/drm/msm/dp/dp_display.c | 27 +++++++++++++++++++++++++++ drivers/gpu/drm/msm/dp/dp_display.h | 2 ++ 2 files changed, 29 insertions(+) diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c index c3be656f10ee..2a74302bcb7c 100644 --- a/drivers/gpu/drm/msm/dp/dp_display.c +++ b/drivers/gpu/drm/msm/dp/dp_display.c @@ -565,6 +565,33 @@ static int msm_dp_irq_hpd_handle(struct msm_dp_display_private *dp) return rc; } +struct msm_dp_panel *msm_dp_display_get_panel(struct msm_dp *msm_dp_display, + enum msm_dp_stream_id stream_id) +{ + struct msm_dp_display_private *dp; + struct msm_dp_panel *dp_panel; + + dp = container_of(msm_dp_display, struct msm_dp_display_private, msm_dp_display); + + if (stream_id >= DP_STREAM_MAX || stream_id >= dp->max_stream) { + DRM_ERROR("invalid stream_id %d\n", stream_id); + return NULL; + } + + dp_panel = msm_dp_panel_get(&dp->msm_dp_display.pdev->dev, dp->aux, dp->link, + dp->link_base, dp->mst2link_base, dp->mst3link_base, + dp->pixel_base[stream_id]); + + if (IS_ERR(dp_panel)) { + DRM_ERROR("failed to initialize panel\n"); + return NULL; + } + + dp_panel->stream_id = stream_id; + + return dp_panel; +} + static void msm_dp_display_deinit_sub_modules(struct msm_dp_display_private *dp) { msm_dp_audio_put(dp->audio); diff --git a/drivers/gpu/drm/msm/dp/dp_display.h b/drivers/gpu/drm/msm/dp/dp_display.h index 75dc40261723..676213a48089 100644 --- a/drivers/gpu/drm/msm/dp/dp_display.h +++ b/drivers/gpu/drm/msm/dp/dp_display.h @@ -58,4 +58,6 @@ int msm_dp_display_set_mode_helper(struct msm_dp *msm_dp_display, int msm_dp_display_prepare_link(struct msm_dp *msm_dp_display); void msm_dp_display_unprepare(struct msm_dp *dp); +struct msm_dp_panel *msm_dp_display_get_panel(struct msm_dp *msm_dp_display, + enum msm_dp_stream_id stream_id); #endif /* _DP_DISPLAY_H_ */ -- 2.43.0