From 0991afbe4b1805e7f0113ef10d7c5f0698a739e4 Mon Sep 17 00:00:00 2001 From: Miquel Raynal Date: Tue, 8 Aug 2023 08:29:29 +0200 Subject: [PATCH] nvmem: core: Notify when a new layout is registered Tell listeners a new layout was introduced and is now available. Signed-off-by: Miquel Raynal Signed-off-by: Srinivas Kandagatla --- drivers/nvmem/core.c | 4 ++++ include/linux/nvmem-consumer.h | 2 ++ 2 files changed, 6 insertions(+) --- a/drivers/nvmem/core.c +++ b/drivers/nvmem/core.c @@ -772,12 +772,16 @@ int __nvmem_layout_register(struct nvmem list_add(&layout->node, &nvmem_layouts); spin_unlock(&nvmem_layout_lock); + blocking_notifier_call_chain(&nvmem_notifier, NVMEM_LAYOUT_ADD, layout); + return 0; } EXPORT_SYMBOL_GPL(__nvmem_layout_register); void nvmem_layout_unregister(struct nvmem_layout *layout) { + blocking_notifier_call_chain(&nvmem_notifier, NVMEM_LAYOUT_REMOVE, layout); + spin_lock(&nvmem_layout_lock); list_del(&layout->node); spin_unlock(&nvmem_layout_lock); --- a/include/linux/nvmem-consumer.h +++ b/include/linux/nvmem-consumer.h @@ -43,6 +43,8 @@ enum { NVMEM_REMOVE, NVMEM_CELL_ADD, NVMEM_CELL_REMOVE, + NVMEM_LAYOUT_ADD, + NVMEM_LAYOUT_REMOVE, }; #if IS_ENABLED(CONFIG_NVMEM)