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[2001:14ba:a073:af00:264b:feff:fe8b:be8a]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-5a10a05b2e6sm243072e87.22.2026.02.25.19.16.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 25 Feb 2026 19:16:53 -0800 (PST) Date: Thu, 26 Feb 2026 05:16:52 +0200 From: Dmitry Baryshkov To: Pengyu Luo Cc: Rob Clark , Dmitry Baryshkov , Abhinav Kumar , Jessica Zhang , Sean Paul , Marijn Suijten , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio , Krishna Manikandan , Jonathan Marek , linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Tianyu Gao , White Lewis Subject: Re: [PATCH 4/5] drm/msm/dsi: Add DSI PHY configuration on SC8280XP Message-ID: References: <20260225054525.6803-1-mitltlatltl@gmail.com> <20260225054525.6803-5-mitltlatltl@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260225054525.6803-5-mitltlatltl@gmail.com> X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjI2MDAyNiBTYWx0ZWRfX0VcRvI2yUZeB 73qwrwcB/7oa+Tr+mbC/Zb4nXoOFrdiFJBBN2FcLolzppF/7J3rU00Ncn/FqopOM1JqXgphM7BE vcoofZ4zDaCD5GG0a9RNYS3XBJUQaYwINK0FReSoFNM8/KeHpO7wvWaQYTQdC9sfdZ2r/uzkJOP o2SywoNyVUDRBpym0G24PCBLToeagWCwRrVEFHHx2J/PEDJWKb2jwTnrp9V2iEzwA+oEDlj6E/l F29+qcF7JVHWMh+st3s2HNJr6QwrVbbWUHzAr4zu+dRxszk+BPkuhqehNVnIedq1Z1zabgnyRiF hwglYvrsri6FJ+0lNfxXM2VthVB1/yUtLmn88wHKN92aV516VidKMwXlolM8/BmOO1q4Rwn8ubL pTzzYS7h2yZh83bMNO0p6eBRk+fE933ZSBRRsSleHNQdyZPTkNDv8igezdAVyUujVQDTVIN1hFD ftj76m7e2jp4JdqNS3A== X-Authority-Analysis: v=2.4 cv=FvoIPmrq c=1 sm=1 tr=0 ts=699fbb29 cx=c_pps a=WeENfcodrlLV9YRTxbY/uA==:117 a=xqWC_Br6kY4A:10 a=kj9zAlcOel0A:10 a=HzLeVaNsDn8A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_K5XuSEh1TEqbUxoQ0s3:22 a=pGLkceISAAAA:8 a=t8rQu5QzYQlLpjgIwqIA:9 a=CjuIK1q_8ugA:10 a=kacYvNCVWA4VmyqE58fU:22 X-Proofpoint-GUID: 9QH1lEVvivLz6A7rwEB55VeD6g-lE-XM X-Proofpoint-ORIG-GUID: 9QH1lEVvivLz6A7rwEB55VeD6g-lE-XM X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-02-25_04,2026-02-25_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 spamscore=0 bulkscore=0 lowpriorityscore=0 suspectscore=0 impostorscore=0 priorityscore=1501 clxscore=1015 adultscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2602130000 definitions=main-2602260026 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" On Wed, Feb 25, 2026 at 01:45:24PM +0800, Pengyu Luo wrote: > According to the REG_DSI_7nm_PHY_CMN_GLBL_RESCODE_OFFSET_TOP_CTRL > value(0x3c) on Windows OS, we can confirm that the SC8280XP uses the > 5nm (v4.2) DSI PHY. > > Since SC8280XP and SA8775P have the same DSI version (v2.5.1), using > SA8775P configuration. Then we should not need separate config here. Use sa8775p as a fallback compatible. > > Signed-off-by: Pengyu Luo > --- > drivers/gpu/drm/msm/dsi/phy/dsi_phy.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c > index 7937266de..4a37c50d9 100644 > --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c > +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c > @@ -565,6 +565,8 @@ static const struct of_device_id dsi_phy_dt_match[] = { > .data = &dsi_phy_5nm_sar2130p_cfgs }, > { .compatible = "qcom,sc7280-dsi-phy-7nm", > .data = &dsi_phy_7nm_7280_cfgs }, > + { .compatible = "qcom,sc8280xp-dsi-phy-5nm", > + .data = &dsi_phy_5nm_8775p_cfgs }, > { .compatible = "qcom,sm6375-dsi-phy-7nm", > .data = &dsi_phy_7nm_6375_cfgs }, > { .compatible = "qcom,sm8350-dsi-phy-5nm", > -- > 2.53.0 > -- With best wishes Dmitry