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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-bc20825b337sm93249866b.23.2026.05.04.00.40.26 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 04 May 2026 00:40:28 -0700 (PDT) Message-ID: Date: Mon, 4 May 2026 09:40:25 +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 8/8] ARM: dts: qcom: Add Samsung Galaxy S4 To: MINETTE Alexandre , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , MyungJoo Ham , Chanwoo Choi , Guru Das Srinagesh , Linus Walleij , Rob Clark , Joerg Roedel , Will Deacon , Robin Murphy , Kees Cook , Tony Luck , "Guilherme G. Piccoli" Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, iommu@lists.linux.dev, phone-devel@vger.kernel.org References: <20260427-mainline-send-v1-sending-v2-0-dcaa9178007b@alex-min.fr> <20260427-mainline-send-v1-sending-v2-8-dcaa9178007b@alex-min.fr> <97969bf9-8eb2-4498-90bd-9973fb2bd638@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-ORIG-GUID: UbCs3sCP5sel9EBC7jK_qQDViD9mx7lj X-Proofpoint-GUID: UbCs3sCP5sel9EBC7jK_qQDViD9mx7lj X-Authority-Analysis: v=2.4 cv=QY5WeMbv c=1 sm=1 tr=0 ts=69f84d6f cx=c_pps a=1Os3MKEOqt8YzSjcPV0cFA==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=NGcC8JguVDcA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=eoimf2acIAo5FJnRuUoq:22 a=DDlRktX6VRAlMvZBBbgA:9 a=QEXdDO2ut3YA:10 a=hhpmQAJR8DioWGSBphRh:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTA0MDA3NiBTYWx0ZWRfX5HqBB9Ov+BgT ZQD2KH00bE2JWe1bAHjKTWozdFCVn0ksM3PUDbEE5TNlwb66zTxCELewQDxa3mWvyOuN2Y9jb+X 0EEI92NA2Ktrzzwvk8AWmiantLWa6nGk2taae1vyIasro2p8+OeD5ly25sbNQEJYDgn4TXSiarB xVqF9+W56Y3aaM3X4WTB9tN25EdhqfSYWTOgVltCKAYV1xLrDw265UrGo74cDR4n62W+WV/VMuN 3Mqc+XtNixbYvYSUoDoC5K+6TYE6NYou3rB0AkB6ZPRyAvbgD56mcZGBOkuh02rlvdZGwfah+4M zwfe02G/czXHVe6Ltft+f92uXYbir1DfJQ2NGdKdfhjdhT0QTWv/xN3GBYqWVs1F+WkV39BcSS/ yk9nnb0S0+rEmxxiJnXXNwymfvm20Zcm1DVXVBSDOM5shsWDHTcQVlE6mFl9uy7BZwp9AfGH7Tm TcvsA2qDq2GExCfTh1Q== 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=2026-05-04_03,2026-04-30_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 suspectscore=0 phishscore=0 malwarescore=0 lowpriorityscore=0 bulkscore=0 clxscore=1015 adultscore=0 priorityscore=1501 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604200000 definitions=main-2605040076 On 5/1/26 9:41 AM, MINETTE Alexandre wrote: > Thanks a lot for the suggestion, I checked the downstream board files > and it does not look like these buses are wired for GSBI. > > There, the MAX77693 bus is instantiated as a dedicated i2c-gpio bus on > GPIO 22/23, and the AN30259A LED bus as a dedicated i2c-gpio bus on > GPIO 6/7. The native APQ8064 GSBI2/GSBI3 I2C pins are different > (GPIO 24/25 and GPIO 8/9), so these two buses do not seem to be wired > to the GSBI controllers on jflte. What I meant is that the pins that the i2c-gpio nodes reference are actually wired (inside the SoC) to the GSBI I2C controllers. You'll notice that in drivers/pinctrl/qcom/pinctrl-apq8064.c, there are bits like: PINGROUP(6, gsbi3, NA, NA, NA, NA, NA, NA, NA, NA, NA), which mean "function 0 is GPIO [implicitly in the macro], function 1 is mux to the GSBI controller" Konrad