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fa0f130764
Update block NVMEM driver based on backported OF partition support. Note the different MMC card DT binding compared to the previous downstream solution: Instead of having a 'partitions' subnode inside a 'block' node, the 'partitions' node now resides directly under the node representing the card. In order to make references to the 'boot0' or 'boot1' hw partitions you will have to define 'partitions-boot0' or 'partitions-boot1', and move the NVMEM layout into a partition (you may, of course, use 'fixed-partitions' for that, and cover the whole device, if needed). See also https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/devicetree/bindings/mmc/mmc-card.yaml?h=v6.13 Signed-off-by: Daniel Golle <daniel@makrotopia.org>
30 lines
917 B
Diff
30 lines
917 B
Diff
From 2b28bf485b283991eea9f00c5831c1c39c73991f Mon Sep 17 00:00:00 2001
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From: Daniel Golle <daniel@makrotopia.org>
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Date: Thu, 21 Mar 2024 19:33:49 +0000
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Subject: [PATCH 6/8] block: add new genhd flag GENHD_FL_NVMEM
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Add new flag to destinguish block devices which may act as an NVMEM
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provider.
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Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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---
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include/linux/blkdev.h | 2 ++
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1 file changed, 2 insertions(+)
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--- a/include/linux/blkdev.h
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+++ b/include/linux/blkdev.h
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@@ -82,11 +82,13 @@ struct partition_meta_info {
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* ``GENHD_FL_NO_PART``: partition support is disabled. The kernel will not
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* scan for partitions from add_disk, and users can't add partitions manually.
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*
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+ * ``GENHD_FL_NVMEM``: the block device should be considered as NVMEM provider.
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*/
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enum {
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GENHD_FL_REMOVABLE = 1 << 0,
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GENHD_FL_HIDDEN = 1 << 1,
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GENHD_FL_NO_PART = 1 << 2,
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+ GENHD_FL_NVMEM = 1 << 3,
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};
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enum {
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