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Sat, 21 Mar 2026 06:50:48 -0700 (PDT) Received: from hu-vdadhani-hyd.qualcomm.com ([202.46.23.25]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2b083516cb9sm54897555ad.2.2026.03.21.06.50.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 21 Mar 2026 06:50:48 -0700 (PDT) From: Viken Dadhaniya To: mkl@pengutronix.de, mani@kernel.org, thomas.kopp@microchip.com, mailhol@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, andersson@kernel.org, konradybcio@kernel.org, linusw@kernel.org, brgl@kernel.org, linux-can@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-gpio@vger.kernel.org Cc: mukesh.savaliya@oss.qualcomm.com, anup.kulkarni@oss.qualcomm.com, Viken Dadhaniya Subject: [PATCH v3 1/2] dt-bindings: can: mcp251xfd: add microchip,xstbyen property Date: Sat, 21 Mar 2026 19:20:30 +0530 Message-Id: <20260321135031.3107408-2-viken.dadhaniya@oss.qualcomm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260321135031.3107408-1-viken.dadhaniya@oss.qualcomm.com> References: <20260321135031.3107408-1-viken.dadhaniya@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Proofpoint-ORIG-GUID: k37hUvHCl15QWLVyd_0_Wm-uh1gKX1J8 X-Authority-Analysis: v=2.4 cv=epXSD4pX c=1 sm=1 tr=0 ts=69bea239 cx=c_pps a=JL+w9abYAAE89/QcEU+0QA==:117 a=ZePRamnt/+rB5gQjfz0u9A==:17 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=eoimf2acIAo5FJnRuUoq:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=MbkHCQl1Ze6FRj4IwLIA:9 a=324X-CrmTo6CU4MGRt3R:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzIxMDExNSBTYWx0ZWRfX3PavfkjGsSWo lFLboop3XSUMlwKZ5fbv3CD0E3xRvoYBGbd+ZM4+u6sTJUJIvK+F/PDGXOZCrQza5aceWk1g1zL KUr5MnJKa60aWUPNhgCEUjI3SpjJ2ViirqCpodSA6hGRKXnNCrI7OhmIfosg82svqfNEYWrGWJI I2w+gLTvg36OAOldSH7mj1qZ0hf+AuIP99di7HjWiW4wNZ5lQ16tTjqVZU2CrU36SPxhYINoQ7M g7iCS+0ieqxqUkHnH3vW1luYeeQN0AU4Maoz7j8qQMyMXrkGSzai6GshaDy2UAh6fQVvkn57jge XarkkKpJU2E9JPgfiS0siNeGdnhJTkTtVAXNKYnO3GljFE+T9u+XU1yZbBka01zGPONOceU4S5b E97K9k8RlvPUMc8GmbpwYcBS9q/xp/otUTij+lB9GUZSsvntZR1OdEZtA1fE0bOp/mLEIfkxgcT TGI3WF4sGAz12lDUpHw== X-Proofpoint-GUID: k37hUvHCl15QWLVyd_0_Wm-uh1gKX1J8 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-21_04,2026-03-20_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 malwarescore=0 spamscore=0 phishscore=0 lowpriorityscore=0 priorityscore=1501 bulkscore=0 clxscore=1015 adultscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603210115 Content-Type: text/plain; charset="utf-8" Add the boolean property 'microchip,xstbyen' to enable the dedicated transceiver standby control function on the INT0/GPIO0/XSTBY pin of the MCP251xFD family. Signed-off-by: Viken Dadhaniya Acked-by: Conor Dooley --- v2 -> v3: - No change. v2 Link: https://lore.kernel.org/all/20260316131950.859748-2-viken.dadhaniy= a@oss.qualcomm.com/ v1 -> v2: - Drop the gpio-hog approach as suggested by Dmitry. - Add the microchip,xstbyen property to enable transceiver standby control. v1 Link: https://lore.kernel.org/all/20260108125200.2803112-2-viken.dadhani= ya@oss.qualcomm.com/ --- .../devicetree/bindings/net/can/microchip,mcp251xfd.yaml | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Documentation/devicetree/bindings/net/can/microchip,mcp251xfd.= yaml b/Documentation/devicetree/bindings/net/can/microchip,mcp251xfd.yaml index 2d13638ebc6a..28e494262cd9 100644 --- a/Documentation/devicetree/bindings/net/can/microchip,mcp251xfd.yaml +++ b/Documentation/devicetree/bindings/net/can/microchip,mcp251xfd.yaml @@ -44,6 +44,14 @@ properties: signals a pending RX interrupt. maxItems: 1 =20 + microchip,xstbyen: + type: boolean + description: + If present, configure the INT0/GPIO0/XSTBY pin as transceiver standby + control. The pin is driven low when the controller is active and high + when it enters Sleep mode, allowing automatic standby control of an + external CAN transceiver connected to this pin. + spi-max-frequency: description: Must be half or less of "clocks" frequency. --=20 2.34.1