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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Srinivas Kandagatla , Andrew Lunn , Heiner Kallweit , Russell King , Saravana Kannan , Christian Marangi Cc: linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-block@vger.kernel.org, linux-wireless@vger.kernel.org, ath10k@lists.infradead.org, linux-bluetooth@vger.kernel.org, netdev@vger.kernel.org, daniel@makrotopia.org, Loic Poulain X-Mailer: b4 0.14.2 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzAzMDEzNSBTYWx0ZWRfXx5QnvM1QvLjW 3SYrmqgul0FQEwysfOQyuHPr6eOg8NLfUlRC5/TEDDyXOz7OjJM+adwuE2Tx24u1Y/YA6ktuays SNhTQzoR/XJhvfJwca4InYtVBqpuqC5YXybADf2k4U8y3pTbD/9MpDAtJM5nkwjoYju/LVLxWg9 1MYDmL4nrdoKfUryO58aLgG2becs8VZwYjRYFY6PIUih0dR0sUf+Kmsh8a45B0bVnAWHYGOchr3 wGNBn12psGHgz7nlTctcFETnylSrtOSGxUozfiko8z6NJo9G/GrFvfkvjuDuMawROV+Oiz66UQ6 tu0fsJguJORFHAgShnVF2IVYTEF3cwuGvM1Awk3IJCcSxvDLPdjpS87Z6r00EDFPzWiGuKbmBHP 5VlR/GwFUIVSqBkj1v/TqVokjjG3E6R4JfvOmK3MBRzIQZt5HRnY/4Smq7QdV8fom0tccnwxjMW ujrIcRGuLfc+18KSOUA== X-Authority-Analysis: v=2.4 cv=LeUMLDfi c=1 sm=1 tr=0 ts=6a47bcfb cx=c_pps a=HLyN3IcIa5EE8TELMZ618Q==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=ZpdpYltYx_vBUK5n70dp:22 a=EUspDBNiAAAA:8 a=4SYEPDBQci7QR0ImIkAA:9 a=QEXdDO2ut3YA:10 a=bTQJ7kPSJx9SKPbeHEYW:22 X-Proofpoint-ORIG-GUID: hQwbTVt_sbibZrHGJEHJIabiEj5KSu8o X-Proofpoint-Spam-Info: AW1haW4tMjYwNzAzMDEzNSBTYWx0ZWRfXy1Xl81mvgePb Jf/HOdMLuTqA6LOCc0HERzwqv6IX4C7rMaRFtnfRLRKph4fHhjZEFUkBqIGQMSh/TGSisBjl92F DacVpMw3TSBZl/rbMHGnUqMkReaaEE0= X-Proofpoint-GUID: hQwbTVt_sbibZrHGJEHJIabiEj5KSu8o X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-07-03_02,2026-06-26_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 phishscore=0 adultscore=0 malwarescore=0 lowpriorityscore=0 suspectscore=0 bulkscore=0 impostorscore=0 priorityscore=1501 clxscore=1015 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607030135 of_nvmem_layout_get_container() only looks for a child node named "nvmem-layout" to locate the cell definitions. This does not cover providers whose device tree node is itself the fixed-layout container, such as an eMMC boot partition block device whose fwnode points directly at a "fixed-layout" compatible partitions node. When no "nvmem-layout" child is present, fall back to returning the nvmem device node itself if it is compatible with "fixed-layout", so that its cells are parsed by nvmem_add_cells_from_fixed_layout(). Signed-off-by: Loic Poulain --- drivers/nvmem/layouts.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/nvmem/layouts.c b/drivers/nvmem/layouts.c index b90584e1b99eab4217cbe7ec48373e18a7caf0dc..efa631ce7283bdd6c8ecda75915911b5e3a33c99 100644 --- a/drivers/nvmem/layouts.c +++ b/drivers/nvmem/layouts.c @@ -167,7 +167,18 @@ static int nvmem_layout_bus_populate(struct nvmem_device *nvmem, struct device_node *of_nvmem_layout_get_container(struct nvmem_device *nvmem) { - return of_get_child_by_name(nvmem->dev.of_node, "nvmem-layout"); + struct device_node *np; + + /* Search for nvmem-layout child */ + np = of_get_child_by_name(nvmem->dev.of_node, "nvmem-layout"); + if (np) + return np; + + /* The nvmem of_node is itself a fixed-layout node */ + if (of_device_is_compatible(nvmem->dev.of_node, "fixed-layout")) + return of_node_get(nvmem->dev.of_node); + + return NULL; } EXPORT_SYMBOL_GPL(of_nvmem_layout_get_container); -- 2.34.1