openwrt/target/linux/generic/backport-5.15/802-v6.1-0002-nvmem-u-boot-env-find-Device-Tree-nodes-for-NVMEM-ce.patch
Rafał Miłecki 5652f378c6 kernel: update U-Boot NVMEM driver
1. Fix casting
2. Support DT-defined variables

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2022-09-20 23:08:19 +02:00

30 lines
1.1 KiB
Diff

From d69efcf951df4dcc74a0e1554969c533aec8aa9b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Date: Thu, 15 Sep 2022 22:06:29 +0200
Subject: [PATCH] nvmem: u-boot-env: find Device Tree nodes for NVMEM cells
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
DT binding allows specifying NVMEM cells as NVMEM device (provider)
subnodes. Looks for such subnodes when building NVMEM cells.
This allows NVMEM consumers to use U-Boot environment variables.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
drivers/nvmem/u-boot-env.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/nvmem/u-boot-env.c
+++ b/drivers/nvmem/u-boot-env.c
@@ -92,6 +92,7 @@ static int u_boot_env_add_cells(struct u
return -ENOMEM;
priv->cells[idx].offset = data_offset + value - data;
priv->cells[idx].bytes = strlen(value);
+ priv->cells[idx].np = of_get_child_by_name(dev->of_node, priv->cells[idx].name);
}
if (WARN_ON(idx != priv->ncells))