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[129.46.232.65]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-8ac84cb135fsm19223386d6.38.2026.04.10.02.36.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 10 Apr 2026 02:36:22 -0700 (PDT) From: Yongxing Mou Date: Fri, 10 Apr 2026 17:34:05 +0800 Subject: [PATCH v4 30/39] drm/msm/dp: add dp_display_get_panel() to initialize DP panel MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260410-msm-dp-mst-v4-30-b20518dea8de@oss.qualcomm.com> References: <20260410-msm-dp-mst-v4-0-b20518dea8de@oss.qualcomm.com> In-Reply-To: <20260410-msm-dp-mst-v4-0-b20518dea8de@oss.qualcomm.com> 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, Yongxing Mou , Abhinav Kumar X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1775813628; l=2242; i=yongxing.mou@oss.qualcomm.com; s=20250910; h=from:subject:message-id; bh=HNW6+4ELYah4hoMWWjK4ifF1ZFGIAFGBz4FjvX3SfX4=; b=RyKQ2XP3zT8/QWCbbMypHlSFYRjXW/EA7xCX2jtB+ehOrBxDk5zacjDPCR8HoRVeERcjV1bpX teuIZx+8xt9DQke7CzHoNE3/AVpCaZeyO9t+32DAZ/Q3AShDVKG9Szt X-Developer-Key: i=yongxing.mou@oss.qualcomm.com; a=ed25519; pk=rAy5J1eP+V7OXqH5FJ7ngMCtUrnHhut30ZTldOj52UM= X-Authority-Analysis: v=2.4 cv=X+hi7mTe c=1 sm=1 tr=0 ts=69d8c498 cx=c_pps a=oc9J++0uMp73DTRD5QyR2A==:117 a=C3Dk8TwHQYyIj7nOf9RCJw==:17 a=IkcTkHD0fZMA:10 a=A5OVakUREuEA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_K5XuSEh1TEqbUxoQ0s3:22 a=COk6AnOGAAAA:8 a=EUspDBNiAAAA:8 a=6cFZRJIsygQ8aEszaMkA:9 a=QEXdDO2ut3YA:10 a=iYH6xdkBrDN1Jqds4HTS:22 a=TjNXssC_j7lpFel5tvFf:22 X-Proofpoint-GUID: u_otEKdpG_SMqLS3KoZnK7P3vNIERbVD X-Proofpoint-ORIG-GUID: u_otEKdpG_SMqLS3KoZnK7P3vNIERbVD X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDEwMDA4OSBTYWx0ZWRfX3FL6/eh12c4B HSv9V5vxYp2XBp5ZT4E+OJOLqz12P1hDkQ2XnKD8FkxHM1mZGPEr9zQw41brhyifYb9gOQjh/+p Y3aXLyOE6MpRuC7WLwGLKcrLi6/TBXQsbScvKMpOAUxsfg8pnuj/NsRmRbsj2Izl2rmdrCkmzER pSWJGh9RxECUwwjkx4yodk+9UaDY1n45RXvNL7Tg5M/2oj6J8u0lJ8s15wCh0+AgJX51rTsCKVh lR2zaK3emdJwyNljBm/GFYKZd4nMT0Xp1/M39lCs1JroMNsJEoYevQPjAHLbYH0K7IzDZwuTGr6 jx6/17TYNOCUlgL2fEoPZaIN7R7Z/X5vdE9+X+a8fMX9LtC1nXZoZZQNuNEptNxF9saeXI8hw+4 nB6jNugyCHNlPo6GkO0CSwsEKwJrKg5nM5x8Ly61py0gKf0ObTqXdhG2y6B0J/9RUpHFx2HOtCx Kf3AkAS/LZ/1oGM6tvQ== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-04-10_03,2026-04-09_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 malwarescore=0 clxscore=1015 adultscore=0 priorityscore=1501 lowpriorityscore=0 suspectscore=0 spamscore=0 bulkscore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604010000 definitions=main-2604100089 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Abhinav Kumar Add an API 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 | 24 ++++++++++++++++++++++++ drivers/gpu/drm/msm/dp/dp_display.h | 1 + 2 files changed, 25 insertions(+) diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c index abf26951819a..1f26283b2dee 100644 --- a/drivers/gpu/drm/msm/dp/dp_display.c +++ b/drivers/gpu/drm/msm/dp/dp_display.c @@ -571,6 +571,30 @@ 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) +{ + 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); + + 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[0]); + + if (IS_ERR(dp->panel)) { + DRM_ERROR("failed to initialize panel\n"); + return NULL; + } + + /* FIXME: move out of panel */ + memcpy(dp_panel->dpcd, dp->panel->dpcd, DP_RECEIVER_CAP_SIZE); + memcpy(&dp_panel->link_info, &dp->panel->link_info, + sizeof(dp->panel->link_info)); + + 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 2548f67cd441..5f3ef295d710 100644 --- a/drivers/gpu/drm/msm/dp/dp_display.h +++ b/drivers/gpu/drm/msm/dp/dp_display.h @@ -59,4 +59,5 @@ int msm_dp_display_set_mode_helper(struct msm_dp *msm_dp_display, int msm_dp_display_prepare(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); #endif /* _DP_DISPLAY_H_ */ -- 2.43.0