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Fri, 6 Dec 2024 04:32:41 GMT Received: from abhinavk-linux1.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Thu, 5 Dec 2024 20:32:41 -0800 From: Abhinav Kumar Date: Thu, 5 Dec 2024 20:32:01 -0800 Subject: [PATCH 30/45] drm/msm/dp: add dp_display_get_panel() to initialize DP panel Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-ID: <20241205-dp_mst-v1-30-f8618d42a99a@quicinc.com> References: <20241205-dp_mst-v1-0-f8618d42a99a@quicinc.com> In-Reply-To: <20241205-dp_mst-v1-0-f8618d42a99a@quicinc.com> To: Rob Clark , Dmitry Baryshkov , Sean Paul , Marijn Suijten , David Airlie , "Simona Vetter" , Stephen Boyd , "Chandan Uddaraju" , Guenter Roeck , Kuogee Hsieh , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley CC: Vara Reddy , Rob Clark , Tanmay Shah , , , , , , Jessica Zhang , Laurent Pinchart , Abhinav Kumar X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; 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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 --- drivers/gpu/drm/msm/dp/dp_display.c | 28 ++++++++++++++++++++++++++++ drivers/gpu/drm/msm/dp/dp_display.h | 2 ++ 2 files changed, 30 insertions(+) diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c index a67bc7c1b83a5a9996435804ff7337f72dae93a0..60316633cc6bcfdfad8ab356d803642d353add61 100644 --- a/drivers/gpu/drm/msm/dp/dp_display.c +++ b/drivers/gpu/drm/msm/dp/dp_display.c @@ -753,6 +753,34 @@ static int msm_dp_irq_hpd_handle(struct msm_dp_display_private *dp, u32 data) return 0; } +struct msm_dp_panel *msm_dp_display_get_panel(struct msm_dp *dp_display) +{ + struct msm_dp_display_private *dp; + struct msm_dp_panel *dp_panel; + + struct msm_dp_panel_in panel_in; + + dp = container_of(dp_display, struct msm_dp_display_private, msm_dp_display); + + panel_in.dev = &dp_display->pdev->dev; + panel_in.aux = dp->aux; + panel_in.catalog = dp->catalog; + panel_in.link = dp->link; + + dp_panel = msm_dp_panel_get(&panel_in); + + if (IS_ERR(dp->panel)) { + DRM_ERROR("failed to initialize panel\n"); + return NULL; + } + + memcpy(dp_panel->dpcd, dp->panel->dpcd, DP_RECEIVER_CAP_SIZE + 1); + 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 f1142b7b96c372b49e8e45dd0378eb507b081915..6ab14e969bce0fd07b3a550bae17e99652479232 100644 --- a/drivers/gpu/drm/msm/dp/dp_display.h +++ b/drivers/gpu/drm/msm/dp/dp_display.h @@ -68,4 +68,6 @@ void msm_dp_display_unprepare(struct msm_dp *dp); int msm_dp_display_get_active_stream_cnt(struct msm_dp *msm_dp); +struct msm_dp_panel *msm_dp_display_get_panel(struct msm_dp *dp_display); + #endif /* _DP_DISPLAY_H_ */