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[129.46.232.65]) by smtp.gmail.com with ESMTPSA id af79cd13be357-93a3f467566sm18939785a.39.2026.09.15.02.28.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 15 Sep 2026 02:28:15 -0700 (PDT) From: Yongxing Mou Date: Tue, 15 Sep 2026 17:27:49 +0800 Subject: [PATCH v2 2/3] drm/msm/dpu: Attach INT2 power domain alongside MMCX on Kaanapali Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260915-msm_gdsc2-v2-2-9157237b8382@oss.qualcomm.com> References: <20260915-msm_gdsc2-v2-0-9157237b8382@oss.qualcomm.com> In-Reply-To: <20260915-msm_gdsc2-v2-0-9157237b8382@oss.qualcomm.com> To: Rob Clark , Dmitry Baryshkov , Abhinav Kumar , Jessica Zhang , Sean Paul , Marijn Suijten , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Krishna Manikandan , Abel Vesa , Yuanjie Yang , Bjorn Andersson , Konrad Dybcio Cc: linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Yongxing Mou X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1789464471; l=2660; i=yongxing.mou@oss.qualcomm.com; s=20250910; h=from:subject:message-id; bh=a/E+GFuEyBojJjqli8EcWUYHUw5NvaWdxGvcEkYtpmk=; b=rIBAVjyUmU4tm2T/6JX609jxHAuF7gTOziWHFTv6j9t57tjNdwhapK77O/RzFfdXcWuzJQJEm GM4es91488XBgEQRxbBmzeOdmazqy1hLbSTnRKp2NIkQI1zL52d4uLq X-Developer-Key: i=yongxing.mou@oss.qualcomm.com; a=ed25519; pk=rAy5J1eP+V7OXqH5FJ7ngMCtUrnHhut30ZTldOj52UM= X-Proofpoint-Spam-Info: AW1haW4tMjYwOTE1MDEzNSBTYWx0ZWRfX4j3nXDj4exKs kbuimZUaXRHTZzPMegLifNjdZSig6Os/aBqdA0jhZu5oF7awcZpMN8VgriNmC31WfEuZGtT2/cJ m3ByBCK0OlpJdgNZVqFkB7I8CqHv8cU= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTE1MDEzNSBTYWx0ZWRfX5pt8RXnMKZjh 6v7HOiJRLYQradVmINcjmz07Hb7ZFq9Z5e2/nDXd1kr1vNlSizHkTp835igZ42d6QsuF5qPw4Sy ZXmC6PvfSgnLKJQhBGBsPp0zP3f7B1WT1An+QxW+C8m9DhdMNPEMlF7PNS41a0IUYmHx44JThqj LBkUDOA0yYpB0ZlbOVwafEW+mSEofzIXaCfuPxRNK/RE3AXUpQPQN1acaRFKL8y7zC/vKDwc7I9 XApd1xIOPHiBruzX2OzlMSVOAKkhHPaxsY6uWlmhm/f0GB0SPVXNoLzP+WPwVGcASdDc83vbUoV waBmh6HXf3xW/UDWuugC5mkKsfxYzw10ucSKbxK04kOguMPgjtvxxEl4AlCzQ/Cl/nJWvvT2xrz BexaoZg9b4Ea0CBhK3BnPtw2srdppG1cl0RU8atqUEu/Q2nmeBDmphVHbrf6DnNJXLSA70qWTy7 xdCtXWJqX6Jimj48hrQ== X-Authority-Analysis: v=2.4 cv=PKKaavqC c=1 sm=1 tr=0 ts=6aa90fb1 cx=c_pps a=hnmNkyzTK/kJ09Xio7VxxA==:117 a=C3Dk8TwHQYyIj7nOf9RCJw==:17 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yOCtJkima9RkubShWh1s:22 a=EUspDBNiAAAA:8 a=hNyr2f_ZztDnRCZExOcA:9 a=QEXdDO2ut3YA:10 a=PEH46H7Ffwr30OY-TuGO:22 X-Proofpoint-GUID: M-Z5AZms_WIC6G-CpuhlneeKY5eYsU2p X-Proofpoint-ORIG-GUID: M-Z5AZms_WIC6G-CpuhlneeKY5eYsU2p X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-09-15_02,2026-09-14_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 suspectscore=0 malwarescore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 phishscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2609150135 Kaanapali's DPU node lists two power domains when its DT provides both MMCX and INT2 GDSC. The power-domain core only auto-attaches a single power domain; with two phandles it leaves the device unattached to either, so attach both explicitly. MMCX keeps PD_FLAG_REQUIRED_OPP, preserving its existing OPP-based performance-state voting. INT2 has no OPP of its own and is attached as a plain runtime-PM supplier, via the device link the attach API creates automatically, so it needs no manual pm_runtime get/put in the enable/disable paths. Platforms with a single power domain are unaffected and continue to rely on the core's existing single-domain auto-attach. Signed-off-by: Yongxing Mou --- drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c index da3556eb6ecc..d9c2c8d680fd 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include @@ -1376,6 +1377,33 @@ static int dpu_kms_mmap_dpu(struct dpu_kms *dpu_kms) return 0; } +static int dpu_kms_attach_power_domains(struct device *dev) +{ + static const char * const mmcx_names[] = { "mmcx" }; + static const char * const int2_names[] = { "int2" }; + const struct dev_pm_domain_attach_data mmcx_pd = { + .pd_names = mmcx_names, + .num_pd_names = ARRAY_SIZE(mmcx_names), + .pd_flags = PD_FLAG_REQUIRED_OPP, + }; + const struct dev_pm_domain_attach_data int2_pd = { + .pd_names = int2_names, + .num_pd_names = ARRAY_SIZE(int2_names), + }; + struct dev_pm_domain_list *mmcx_list, *int2_list; + int ret; + + if (of_count_phandle_with_args(dev->of_node, "power-domains", + "#power-domain-cells") <= 1) + return 0; + + ret = devm_pm_domain_attach_list(dev, &mmcx_pd, &mmcx_list); + if (ret < 0) + return ret; + + return devm_pm_domain_attach_list(dev, &int2_pd, &int2_list); +} + static int dpu_dev_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -1392,6 +1420,10 @@ static int dpu_dev_probe(struct platform_device *pdev) dpu_kms->pdev = pdev; + ret = dpu_kms_attach_power_domains(dev); + if (ret < 0) + return dev_err_probe(dev, ret, "failed to attach power domains\n"); + ret = devm_pm_opp_set_clkname(dev, "core"); if (ret) return ret; -- 2.43.0