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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-61cfc4bbbd1sm12231373a12.34.2025.09.03.08.48.57 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 03 Sep 2025 08:48:59 -0700 (PDT) Message-ID: Date: Wed, 3 Sep 2025 17:48:56 +0200 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 v2 03/13] arm64: dts: qcom: lemans-evk: Add TCA9534 I/O expander To: Wasim Nazir , Ulf Hansson , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio , Richard Cochran Cc: kernel@oss.qualcomm.com, linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, netdev@vger.kernel.org, Nirmesh Kumar Singh References: <20250903-lemans-evk-bu-v2-0-bfa381bf8ba2@oss.qualcomm.com> <20250903-lemans-evk-bu-v2-3-bfa381bf8ba2@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20250903-lemans-evk-bu-v2-3-bfa381bf8ba2@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwOTAzMDExNyBTYWx0ZWRfXx1TqYAspjjQs hEzbEHSs574Vf+DmtOSi9iJQNeK//ooX5XsdCG8DuGyT9gfwNbUbVmGCC5pOWS7XVuSakqgU7IQ DdT/FeT2dWRUHLWPhQNbt1AjoNqq0y8EynP3NET0zu/Ppg1bUlXtmM3FSd3HHLskUhVl7ovFW9F 802lHfbAq6SpdtxEnFN/WnNHbjBu09pwwM/bZhe6h3qYEXSfTfmfnY3ZvLzmO6DAvipoGbBrXD8 H5PDqjnoiUgxo/5xuyt0ljKVwuR3lo6zo3co0SBg9i93sKqEphAFNHjleQhjL+ZlFgs7pa2nLts XPgnVgKDJq5NGTgiMPnB77vCucYcLceSbTQ1RrNvAZuyrfW2HeM4uI4YM909Wje1oBgoPR8QUIX uHH+gtvA X-Authority-Analysis: v=2.4 cv=a5cw9VSF c=1 sm=1 tr=0 ts=68b8636d cx=c_pps a=mPf7EqFMSY9/WdsSgAYMbA==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=yJojWOMRYYMA:10 a=COk6AnOGAAAA:8 a=EUspDBNiAAAA:8 a=nLpcdTFfG50SK1Npur4A:9 a=QEXdDO2ut3YA:10 a=dawVfQjAaf238kedN5IG:22 a=TjNXssC_j7lpFel5tvFf:22 X-Proofpoint-GUID: sXUe3U_lSciE-2vsrbcJ9XH1ND6faR1r X-Proofpoint-ORIG-GUID: sXUe3U_lSciE-2vsrbcJ9XH1ND6faR1r X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1117,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-09-03_08,2025-08-28_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 suspectscore=0 clxscore=1015 bulkscore=0 priorityscore=1501 phishscore=0 impostorscore=0 adultscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2507300000 definitions=main-2509030117 On 9/3/25 1:47 PM, Wasim Nazir wrote: > From: Nirmesh Kumar Singh > > Integrate the TCA9534 I/O expander via I2C to provide 8 additional > GPIO lines for extended I/O functionality. > > Signed-off-by: Nirmesh Kumar Singh > Signed-off-by: Wasim Nazir > --- > arch/arm64/boot/dts/qcom/lemans-evk.dts | 32 ++++++++++++++++++++++++++++++++ > 1 file changed, 32 insertions(+) > > diff --git a/arch/arm64/boot/dts/qcom/lemans-evk.dts b/arch/arm64/boot/dts/qcom/lemans-evk.dts > index 9e415012140b..753c5afc3342 100644 > --- a/arch/arm64/boot/dts/qcom/lemans-evk.dts > +++ b/arch/arm64/boot/dts/qcom/lemans-evk.dts > @@ -277,6 +277,38 @@ vreg_l8e: ldo8 { > }; > }; > > +&i2c18 { > + status = "okay"; > + > + expander0: gpio@38 { > + compatible = "ti,tca9538"; > + #gpio-cells = <2>; > + gpio-controller; > + reg = <0x38>; 'reg' usually comes right after compatible Konrad