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Tue, 08 Sep 2026 06:43:28 -0700 (PDT) Date: Tue, 8 Sep 2026 19:13:20 +0530 From: Mohd Ayaan Anwar To: Andrew Lunn Cc: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Komal Bajaj , Anurag Pateriya , Dmitry Baryshkov , Richard Cochran , Andrew Lunn , Maxime Chevallier , Konrad Dybcio , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: Re: [PATCH PRELIMINARY 1/5] arm64: dts: qcom: shikra-iqs-som: fix GPIO138 reservation Message-ID: References: <20260908-shikra_ethernet_dts-v1-0-69c0c5c7c124@oss.qualcomm.com> <20260908-shikra_ethernet_dts-v1-1-69c0c5c7c124@oss.qualcomm.com> <169b2cd5-d0d8-4682-8756-bacf545a95a0@lunn.ch> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <169b2cd5-d0d8-4682-8756-bacf545a95a0@lunn.ch> X-Authority-Analysis: v=2.4 cv=Ga8nWwXL c=1 sm=1 tr=0 ts=6aa01101 cx=c_pps a=Oh5Dbbf/trHjhBongsHeRQ==:117 a=ZePRamnt/+rB5gQjfz0u9A==:17 a=kj9zAlcOel0A:10 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=rJkE3RaqiGZ5pbrm-msn:22 a=EUspDBNiAAAA:8 a=mbnDeuF-4I0g7l0wkJUA:9 a=CjuIK1q_8ugA:10 a=_Vgx9l1VpLgwpw_dHYaR:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTA4MDE0NyBTYWx0ZWRfXyxHg/ICONjZ8 mhDzCNnEe3968Sxu+C5veX1Ra2Nqwf5fe8emRFne9qzlEjdrSbXnMeNoyGsoEd1pEVDKxJMNbmq bocx0hZRT/jCgpP/Ci2jCb8vC5iiSyzoj2ZTyrpf9AmXGiyVaioHEdySpwBPMTpnwt5AJ+SzgkC jSRlNvxWhEnYBAIqeteNbU70/27eb3t3Lj89xeLJwED157j/QGMCPISsJHKf83JFDZ7VAR4yVnC gOn4p2S7twaf+7zGNQkSoPvBClS+d3amXauEft2w04GvAPXEmNpdIJS/SVg+s7G5shT7Nd1O8JL xxX5qTSGHeqNgebAvxgTJH18gskEvA0SEzqNpz8f6I4PvwHg05ahDQdBTAqpsX+DOX1zld0Vq4j EXwhDuPH0u4c70QdSfNU38hNTtZTuXQ7mnlJTn7119HaDlRCEN7V6pQsVB2gNLHLVmx4m035K0M u9lBpSjTumRTzmppDGA== X-Proofpoint-ORIG-GUID: 4T2ymEQmSFCxzHFy1vAQ1WCuhystCot9 X-Proofpoint-GUID: 4T2ymEQmSFCxzHFy1vAQ1WCuhystCot9 X-Proofpoint-Spam-Info: AW1haW4tMjYwOTA4MDE0NyBTYWx0ZWRfXxnZO/13IZJpH U9i4Nx8zxaPE5Z/XDE8cSBALGZ6OO9IJPXPZ3ZNzyVxFefAL9jOk/cq+fGHO27klHRfBCec5l98 LIL+YJfZtFGV7FTQMUglJ7+xfP1wfS8= 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=2026-09-08_02,2026-09-08_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 phishscore=0 suspectscore=0 clxscore=1015 impostorscore=0 bulkscore=0 spamscore=0 lowpriorityscore=0 priorityscore=1501 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2609080147 On Tue, Sep 08, 2026 at 02:11:22PM +0200, Andrew Lunn wrote: > On Tue, Sep 08, 2026 at 11:53:30AM +0530, Mohd Ayaan Anwar wrote: > > The GPIO mappings on the IQS variant differ from the CQ variants. > > GPIO138 is connected to the RGMII1_RX_CTL pin rather than the NFC ESE > > Secure IO pin; the latter is connected to GPIO49. This incorrect > > reservation causes the probe of the second Ethernet port to fail: > > > > shikra-tlmm 500000.pinctrl: error -EINVAL: pin-138 (5d20000.ethernet) > > shikra-tlmm 500000.pinctrl: error -EINVAL: could not request pin 138 > > (GPIO_138) from group gpio138 on device 500000.pinctrl > > qcom-ethqos 5d20000.ethernet: Error applying setting, reverse things back > > > > Replace gpio138 with gpio49 in the reserved list. > > > > Fixes: 779aead2dace ("arm64: dts: qcom: shikra: Add gpio-reserved-ranges to tlmm") > > Signed-off-by: Mohd Ayaan Anwar > > If this is a fix, should it be posted for a different tree, so it > makes it way to stable? > > You don't normally mix fixes and on going development work. > You're right that it reads like a standalone fix, and that's on me for the commit message. There's no functional impact on current users: the reserved GPIO (138) is unused today, so applying this on a released kernel produces no error and there's nothing to backport to stable. I'll reword the commit message so it reads as a prerequisite for enabling Ethernet rather than implying a current break. Ayaan