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[103.229.16.4]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2d3521a3120sm2413285ad.52.2026.08.12.00.16.07 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 12 Aug 2026 00:16:10 -0700 (PDT) Message-ID: <1c260f20-711c-46a8-95f7-c03bccc41222@oss.qualcomm.com> Date: Wed, 12 Aug 2026 15:16:06 +0800 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] arm64: dts: qcom: ipq5018: Add pinctrl for MDIO bus To: Dmitry Baryshkov Cc: Kathiravan Thirumoorthy , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260811-qcom_ipq5018_mdio_pinctrl-v1-1-14ae9dc62a3f@oss.qualcomm.com> <076b0942-7e1a-4a6c-9293-04a7ff77abcb@oss.qualcomm.com> <5a8a773d-5fa8-4e93-8130-2b49997691fc@oss.qualcomm.com> Content-Language: en-US From: Jie Luo In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Proofpoint-GUID: 2NjJBLGW6d46ZF3eJNtVMADMOj4DyJOk X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODEyMDA1NiBTYWx0ZWRfX37GRm8RFLnOT iOMH8BD91n1M2l9wsDjUf5oBxKlLPPfw1KgvLKDNrEwjp+GNE3BhHoeMeIEyYJ7d9e2x1ELb3nm nb9YljPswvPlvEeRsrzzrhHiy63vSIEsEL4M3aPqAMYPFFcXH3qJVBw7bSHwcpNO1kocYk3CM+2 0C260y7SFT5wk5kzS1e9PXhkl8FfIzDoI2jsg3C69inaPhWV6Ym9I3GBPGm5geXPGq+KgJF1nMJ Kp9QDE+w3j+gZcEONq4xeMsAo8cXjmdf2vcq6tQ7afLE6SLxFNdEH7YQzLaUjJk/8ouZVwq7Zh0 jwVD3y6Su81CgcKeDSOG+C7O39EtKAO62nhbaPh8Ih9rS818Vk8WFyN3eIw9NCed1PtvB79KTlO mFd8htmL6uvhrakwNoofjnc9kCQTMuusCyd/rlQHrfNg4RMB6y6p5qVAxdYfhSjbejMICvKGkp8 A9vbOswnDdUDHqKjROg== X-Proofpoint-ORIG-GUID: 2NjJBLGW6d46ZF3eJNtVMADMOj4DyJOk X-Authority-Analysis: v=2.4 cv=FbkHAp+6 c=1 sm=1 tr=0 ts=6a7c1dbc cx=c_pps a=IZJwPbhc+fLeJZngyXXI0A==:117 a=nuhDOHQX5FNHPW3J6Bj6AA==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yx91gb_oNiZeI1HMLzn7:22 a=iJuzQYvAr7YxkxZwkH8A:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=uG9DUKGECoFWVXl0Dc02:22 X-Proofpoint-Spam-Info: AW1haW4tMjYwODEyMDA1NiBTYWx0ZWRfX2S1TFM6+H1Iw 8AUxNEshQCpuftD7T/8SlJIyo+uGeTfN3hkOSO5/e0wamDOFaHOUXo5jdCzFiO4cwgAzmtFSrmz l/CNhMKKhcV+ZU4uAJ2PBNkzeDJRvJg= 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=2026-08-12_02,2026-08-10_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 phishscore=0 clxscore=1015 bulkscore=0 suspectscore=0 lowpriorityscore=0 priorityscore=1501 spamscore=0 impostorscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608120056 On 8/12/2026 5:44 AM, Dmitry Baryshkov wrote: > On Tue, Aug 11, 2026 at 11:24:13PM +0800, Jie Luo wrote: >> >> >> On 8/11/2026 10:00 PM, Kathiravan Thirumoorthy wrote: >>> >>> On 8/11/2026 7:06 PM, Luo Jie wrote: >>>> The external MDIO bus (mdio1) needs its MDC/MDIO lines configured via >>>> TLMM pinctrl; without this the pins are left in their default state and >>>> the bus does not function on boards that enable it. >>> >>> Should we move the TLMM definitions to the board DTS file rather than >>> keeping it in the SoC DTSI? >> >> The MDC/MDIO pin-group definition is SoC-specific. On IPQ5018, only >> these two TLMM pins support the MDIO interface—one for MDC and one for >> MDIO—with no alternative pin assignments available. Therefore, the >> definition can remain in the IPQ5018 pinctrl/SoC DTSI for reuse. > > Is it expected that the drive strength is also common to all boards? > Yes. The MDC/MDIO pin configurations, including the drive strength, are identical across the IPQ5018 RDP boards.