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Message-Id: <20230814165252.93422-23-srinivas.kandagatla@linaro.org>
Date: Mon, 14 Aug 2023 17:52:52 +0100
From: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To: gregkh@...uxfoundation.org
Cc: linux-kernel@...r.kernel.org,
Miquel Raynal <miquel.raynal@...tlin.com>,
Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: [PATCH 22/22] nvmem: core: Notify when a new layout is registered
From: Miquel Raynal <miquel.raynal@...tlin.com>
Tell listeners a new layout was introduced and is now available.
Signed-off-by: Miquel Raynal <miquel.raynal@...tlin.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
---
drivers/nvmem/core.c | 4 ++++
include/linux/nvmem-consumer.h | 2 ++
2 files changed, 6 insertions(+)
diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index 12d05aea0b41..eaf6a3fe8ca6 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -771,12 +771,16 @@ int __nvmem_layout_register(struct nvmem_layout *layout, struct module *owner)
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);
diff --git a/include/linux/nvmem-consumer.h b/include/linux/nvmem-consumer.h
index 27373024856d..4523e4e83319 100644
--- 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)
--
2.25.1
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