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[103.229.16.4]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2446d57e140sm8982125ad.156.2025.08.15.01.30.09 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 15 Aug 2025 01:30:16 -0700 (PDT) Message-ID: Date: Fri, 15 Aug 2025 16:30:08 +0800 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 03/13] dt-bindings: phy: qcom,msm8998-qmp-usb3-phy: support dual TCSR registers To: Krzysztof Kozlowski , 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 , Kuogee Hsieh , Vinod Koul , Kishon Vijay Abraham I 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, linux-phy@lists.infradead.org, dmitry.baryshkov@oss.qualcomm.com, konrad.dybcio@oss.qualcomm.com, fange.zhang@oss.qualcomm.com, quic_lliu6@quicinc.com, quic_yongmou@quicinc.com References: <20250722-add-displayport-support-for-qcs615-platform-v2-0-42b4037171f8@oss.qualcomm.com> <20250722-add-displayport-support-for-qcs615-platform-v2-3-42b4037171f8@oss.qualcomm.com> <2fd202a6-2c92-469c-81c0-8852562d4e35@kernel.org> From: Xiangxu Yin In-Reply-To: <2fd202a6-2c92-469c-81c0-8852562d4e35@kernel.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwODEzMDA5NCBTYWx0ZWRfX2RKPuu1P0Lj8 YvMJJjdrbRLj+IfJFRPWEyMGbo26rQZj2Uk6XsDL7rLW5h1iAaA20kNofSUO4locMhotw+HOzcN EEajuYibB3WgtC1WStS9Mzvijjd3snbGtDoV2JrJwSx3u4ht04dWX1lvx6+FAVN1edxOqR84Mq8 XfzW3Qa0pXcCEMyh4i8iuEEjGXIXtQZZONIgR1C1ROqaYANDEgevIteVi9eEk6q5+5qqKa/i18n rj0D/r9wRm5RO5rLRzRmUd+XFmsAj74eZpTTEERfy+Wjg2bV8VuOF2izxQbCFbWMvFMvM7IoAbZ RVGVNsqP1URrGWy1wDAmc7BQel73z0sytM92nZd2zh/fePmzHtA6298lTqiMKE6A/wfi7pbGdeH SwDzmTTH X-Authority-Analysis: v=2.4 cv=NIrV+16g c=1 sm=1 tr=0 ts=689ef01a cx=c_pps a=vVfyC5vLCtgYJKYeQD43oA==:117 a=nuhDOHQX5FNHPW3J6Bj6AA==:17 a=IkcTkHD0fZMA:10 a=2OwXVqhp2XgA:10 a=EUspDBNiAAAA:8 a=6sAUhDfBEk1Dn3Xrvb0A:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=rl5im9kqc5Lf4LNbBjHf:22 X-Proofpoint-ORIG-GUID: Qt4flmdvl3nqWOQRYsr-EvLOlqOLbn6M X-Proofpoint-GUID: Qt4flmdvl3nqWOQRYsr-EvLOlqOLbn6M X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-08-15_03,2025-08-14_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 clxscore=1015 impostorscore=0 adultscore=0 suspectscore=0 spamscore=0 malwarescore=0 phishscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2507300000 definitions=main-2508130094 On 7/22/2025 5:19 PM, Krzysztof Kozlowski wrote: > On 22/07/2025 09:22, Xiangxu Yin wrote: >> Add support for specifying two TCSR register addresses in the >> qcom,tcsr-reg property to enable DP-only mode switching. This change >> maintains backward compatibility with the original single-register >> format. >> >> Also update #clock-cells and #phy-cells to <1> to support clock and PHY >> provider interfaces, respectively. This is required for platforms that >> consume the PHY clock and select PHY mode dynamically. >> >> Signed-off-by: Xiangxu Yin >> --- >> .../bindings/phy/qcom,msm8998-qmp-usb3-phy.yaml | 28 +++++++++++++++++----- >> 1 file changed, 22 insertions(+), 6 deletions(-) >> >> diff --git a/Documentation/devicetree/bindings/phy/qcom,msm8998-qmp-usb3-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,msm8998-qmp-usb3-phy.yaml >> index 1636285fbe535c430fdf792b33a5e9c523de323b..badfc46cda6c3a128688ac63b00d97dc2ba742d6 100644 >> --- a/Documentation/devicetree/bindings/phy/qcom,msm8998-qmp-usb3-phy.yaml >> +++ b/Documentation/devicetree/bindings/phy/qcom,msm8998-qmp-usb3-phy.yaml >> @@ -44,13 +44,21 @@ properties: >> vdda-pll-supply: true >> >> "#clock-cells": >> - const: 0 >> + oneOf: >> + - description: Set to 0 for legacy platforms without clock provider >> + const: 0 >> + - description: Set to 1 to expose PHY pipe clock. >> + const: 1 >> >> clock-output-names: >> maxItems: 1 >> >> "#phy-cells": >> - const: 0 >> + oneOf: >> + - description: Set to 0 for legacy platforms >> + const: 0 >> + - description: Set to 1 to supports mode selection (e.g. USB/DP) >> + const: 1 > I don't understand why EXISTING platforms now get more clocks. What did > you change in the hardware? This you must explain in the commit msg. > > > Best regards, > Krzysztof As discussed in [PATCH v2 02/13], I misunderstood Dmitry's intent regarding backward compatibility in v1.  This part will be dropped in the next patch to avoid affecting existing platform configurations. Thanks for pointing it out. 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[103.229.16.4]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2446d57e140sm8982125ad.156.2025.08.15.01.30.09 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 15 Aug 2025 01:30:16 -0700 (PDT) Message-ID: Date: Fri, 15 Aug 2025 16:30:08 +0800 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 03/13] dt-bindings: phy: qcom,msm8998-qmp-usb3-phy: support dual TCSR registers To: Krzysztof Kozlowski , 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 , Kuogee Hsieh , Vinod Koul , Kishon Vijay Abraham I 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, linux-phy@lists.infradead.org, dmitry.baryshkov@oss.qualcomm.com, konrad.dybcio@oss.qualcomm.com, fange.zhang@oss.qualcomm.com, quic_lliu6@quicinc.com, quic_yongmou@quicinc.com References: <20250722-add-displayport-support-for-qcs615-platform-v2-0-42b4037171f8@oss.qualcomm.com> <20250722-add-displayport-support-for-qcs615-platform-v2-3-42b4037171f8@oss.qualcomm.com> <2fd202a6-2c92-469c-81c0-8852562d4e35@kernel.org> From: Xiangxu Yin In-Reply-To: <2fd202a6-2c92-469c-81c0-8852562d4e35@kernel.org> X-Authority-Analysis: v=2.4 cv=X4lSKHTe c=1 sm=1 tr=0 ts=689ef01a cx=c_pps a=0uOsjrqzRL749jD1oC5vDA==:117 a=nuhDOHQX5FNHPW3J6Bj6AA==:17 a=IkcTkHD0fZMA:10 a=2OwXVqhp2XgA:10 a=EUspDBNiAAAA:8 a=6sAUhDfBEk1Dn3Xrvb0A:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=mQ_c8vxmzFEMiUWkPHU9:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwODA5MDAzMSBTYWx0ZWRfX9CJAKdQXTJBD hso8PAqXgP7B2m4j9+dAbW/zFDTR1tWYLtminggHLIU+KB+AInbmj7fFVzFG/398ct7LB6lCPny ZHQHfxaznC+NLakSomyWB9sTeGHVZueUDxTf6Ou/+tIV/4UNME7bipHZd6lBkLIiYJnc9TShCt8 PEqNuXTqjJZXUAFIBaE9B7bmo3DfUUWeE/8ulDFk6puMW09A1hfiytUsl6YB5gR6W71PDwpoHld bhehytFj0WW2PVlD5tAi3wl3PE89XWXc4oyKK7oMsBsr23e9XnhLMfOyYdrPhaVS+831/FMbf0D Ymd5O35me5YXWQPXUj31fd0vqb3keh5mJLd6oxSqTWEHSounVMnR1NlUpwKBz9o9nzJrGR7EsGG BJCHdXbv X-Proofpoint-GUID: AF5ZC6-YBcqP01ei2ZR_lW_QYPUfOdsS X-Proofpoint-ORIG-GUID: AF5ZC6-YBcqP01ei2ZR_lW_QYPUfOdsS X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-08-15_03,2025-08-14_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 priorityscore=1501 clxscore=1015 malwarescore=0 adultscore=0 spamscore=0 bulkscore=0 suspectscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2507300000 definitions=main-2508090031 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250815_013019_142147_2BCEE8CE X-CRM114-Status: GOOD ( 17.08 ) X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; 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