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a=openpgp; fpr=169DEB6C0BC3C46013D2C79F11A72EA01471D772 X-Proofpoint-ORIG-GUID: CQP6zd_C6HzYHrtay334b6Qc2_DjaNcq X-Authority-Analysis: v=2.4 cv=UZlciaSN c=1 sm=1 tr=0 ts=699c1880 cx=c_pps a=UgVkIMxJMSkC9lv97toC5g==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=HzLeVaNsDn8A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=eoimf2acIAo5FJnRuUoq:22 a=EUspDBNiAAAA:8 a=GqsknrqNkdw30Ab-NAsA:9 a=QEXdDO2ut3YA:10 a=1HOtulTD9v-eNWfpl4qZ:22 X-Proofpoint-GUID: CQP6zd_C6HzYHrtay334b6Qc2_DjaNcq X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjIzMDA4MSBTYWx0ZWRfX0paiJX6y7Ljg nv/0Ff5oICoKlR6p4iCtVB3Bo6tp0mAw0mMGy3Nkzq1F0Ps62DGW/rBD2t6gzGKmI6Feupeszuc hyx/uV7unM/DcHG6r/bnCeJ1LaZfhTW6yiFTCmmHHSV55RLBXrM/CyDoPZWH+XzvekxCRc2/479 Vbd0ANgeuAHdmh1hRjWnmVtM/DadwmOIvrQ1H6SsSQgWyzNHOwSEiORXC3QaAHDPu4J+JLwn34q LvCIqKyPat/SKeE4xlSgTfwuei3CmyuDEdNmXBZhkhmOPkU2B10ZfHCIjwy35mtBXtsOT3/uFBK C9b5K0vTYkSL5OSlovn6G0+sgjPL0Hev0UJKi5gvPkeJkttwO8T/SOl1xVMOoTQzmAodMuNdUut 1ehXo1Q8SZFRxWIcZvfw+mjHMItlNsTxccAkwC5+xFZBvyyPuXaxXuqd+1fSFgDjnGaRtPIMuPs fyjwduQfNrKBXbMr5CA== 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=2026-02-23_01,2026-02-20_04,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 suspectscore=0 phishscore=0 spamscore=0 malwarescore=0 bulkscore=0 impostorscore=0 lowpriorityscore=0 clxscore=1015 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2602130000 definitions=main-2602230081 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260223_010609_034269_A96395FE X-CRM114-Status: GOOD ( 16.06 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org In order to stop i2c bus drivers from dereferencing the struct device embedded in struct i2c_adapter, let's allow configuring the parent device and OF-node of the adapter directly through dedicated fields. Signed-off-by: Bartosz Golaszewski --- drivers/i2c/i2c-core-base.c | 5 +++++ include/linux/i2c.h | 4 ++++ 2 files changed, 9 insertions(+) diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c index 9c46147e3506d15d53b9b7d6b592709de56e41b9..dd8cec9b04c64b8340d20e018ab5ba28f1f7f5c9 100644 --- a/drivers/i2c/i2c-core-base.c +++ b/drivers/i2c/i2c-core-base.c @@ -1561,6 +1561,11 @@ static int i2c_register_adapter(struct i2c_adapter *adap) adap->dev.type = &i2c_adapter_type; device_initialize(&adap->dev); + if (!adap->dev.parent) + adap->dev.parent = adap->parent; + if (!adap->dev.of_node) + adap->dev.of_node = adap->of_node; + /* * This adapter can be used as a parent immediately after device_add(), * setup runtime-pm (especially ignore-children) before hand. diff --git a/include/linux/i2c.h b/include/linux/i2c.h index 20fd41b51d5c85ee1665395c07345faafd8e2fca..72677f29aff161530bc3c497d1e07144a44eb9e4 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -761,6 +761,10 @@ struct i2c_adapter { struct irq_domain *host_notify_domain; struct regulator *bus_regulator; + /* Device configuration. */ + struct device *parent; + struct device_node *of_node; + struct dentry *debugfs; /* 7bit address space */ -- 2.47.3