Re: [PATCH v9 05/10] block: partitions: of: Attach partition fwnode to the block device
Bartosz Golaszewski <[email protected]>
| Newsgroups | org.kernel.vger.linux-arm-msm,org.infradead.lists.ath10k,org.kernel.vger.linux-block,org.kernel.vger.linux-bluetooth,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-kernel,org.kernel.vger.linux-mmc,org.kernel.vger.linux-wireless,org.kernel.vger.netdev |
|---|---|
| Message-ID | <CAMRc=MdXFDFw_oHSGk5=RgLJAfTixuUNYTY62Dpcdb4nqcg7ig@mail.gmail.com> |
On Thu, 30 Jul 2026 18:00:35 +0200, Loic Poulain <[email protected]> said: > The OF partition parser reads offset, size and label from each > "fixed-partitions" child node but does not associate that node with the > resulting partition block device. As a result a partition has no > of_node, unlike the whole-disk device which gets its firmware node via > add_disk_fwnode(). > > Carry the partition's device tree node through the parser and attach it > to the partition's block device with device_set_node(), mirroring the > whole-disk case. This lets consumers describe per-partition properties > in the device tree (for example an NVMEM layout on a partition node) and > look them up through the partition device. > > No functional change for existing users, partitions without a matching > device tree node simply get a NULL fwnode. > > Signed-off-by: Loic Poulain <[email protected]> > --- Makes sense. Reviewed-by: Bartosz Golaszewski <[email protected]>