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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b8edae79540sm71251166b.69.2026.02.06.03.05.57 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 06 Feb 2026 03:05:58 -0800 (PST) Message-ID: Date: Fri, 6 Feb 2026 12:05:56 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/2] arm64: dts: qcom: lemans-evk: Enable GPIO expander3 interrupt for Lemans EVK To: Swati Agarwal , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260206104642.1038381-1-swati.agarwal@oss.qualcomm.com> <20260206104642.1038381-2-swati.agarwal@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260206104642.1038381-2-swati.agarwal@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-GUID: twXshS93Acbf9PuKs-EJnBoWHUikAc_a X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjA2MDA3NiBTYWx0ZWRfXzIRzwdNy/H1c 911db2vsa6cWQoiu2tUu2nhsVRua3OUDLaJral0r3HDTI5hzXW0xWqXAI2IuALJrBTi+zOFaR2W FRpdo1s43WCm4EzSpz72GFj3h0msYbxAJytARFBSvEsMsJ8UfsalQupf9n78BSYA8rvz90wCDG6 /QGP04lIyHKPVzk0oxjynkSTwSrGk61uUCkICKibXMHy1xOypudV1dWoZujiuyBeWq0aU+2OGQx Z3tdsURiMRazTSUCTMV2++eDac8m1E/ERJwHgfBMMNiK1CWm2CS8l9lDsjsWoAK1Htd6cU+YfRX LmIlbQ/tlEowZtfvGr/G0P1w0sqW/d2HA7oT6j2uYdIbCw1XXO2q0sZf4kBh0bU+1ZLZQq+MQBY rjiV1/xLLjK1sJZ8njWWJIPddb3MxZPbQJZOFs4S84koQCNX61M7IPOEebF66KOBVQkjUK/uv+v ZChWGTDZ8Sb98L4pBvg== X-Authority-Analysis: v=2.4 cv=C73kCAP+ c=1 sm=1 tr=0 ts=6985cb18 cx=c_pps a=hnmNkyzTK/kJ09Xio7VxxA==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=HzLeVaNsDn8A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=Mpw57Om8IfrbqaoTuvik:22 a=GgsMoib0sEa3-_RKJdDe:22 a=EUspDBNiAAAA:8 a=K1JTwh0sNvVZL_e2-CkA:9 a=QEXdDO2ut3YA:10 a=PEH46H7Ffwr30OY-TuGO:22 X-Proofpoint-ORIG-GUID: twXshS93Acbf9PuKs-EJnBoWHUikAc_a 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=2026-02-06_03,2026-02-05_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 bulkscore=0 malwarescore=0 clxscore=1015 impostorscore=0 phishscore=0 adultscore=0 lowpriorityscore=0 spamscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2602060076 On 2/6/26 11:46 AM, Swati Agarwal wrote: > Enable PCA9538 expander3 as interrupt controller on Lemans EVK and > configures the corresponding TLMM pins via pinctrl to operate as GPIO > inputs with internal pull-ups. > > Signed-off-by: Swati Agarwal > --- > arch/arm64/boot/dts/qcom/lemans-evk.dts | 13 +++++++++++++ > 1 file changed, 13 insertions(+) > > diff --git a/arch/arm64/boot/dts/qcom/lemans-evk.dts b/arch/arm64/boot/dts/qcom/lemans-evk.dts > index a549f7fe53a1..473cc2a81670 100644 > --- a/arch/arm64/boot/dts/qcom/lemans-evk.dts > +++ b/arch/arm64/boot/dts/qcom/lemans-evk.dts > @@ -649,6 +649,12 @@ expander3: gpio@3b { > reg = <0x3b>; > #gpio-cells = <2>; > gpio-controller; > + #interrupt-cells = <2>; > + interrupt-controller; > + interrupt-parent = <&tlmm>; > + interrupts = <39 IRQ_TYPE_LEVEL_LOW>; > + pinctrl-names = "default"; > + pinctrl-0 = <&expander3_int>; property-n property-names in this order, please Could you wire up the interrupts from other expanders while at it? > }; > > eeprom@50 { > @@ -894,6 +900,13 @@ ethernet0_mdio: ethernet0-mdio-pins { > }; > }; > > + expander3_int: expander3-int-state { > + pins = "gpio39"; > + function = "gpio"; > + input-enable; input-enable is not allowed for TLMM GPIOs, please make sure to run "make dtbs_check" (or at least make [...] CHECK_DTBS=1 qcom/lemans-evk.dtb) before submitting Konrad