From: Rafał Miłecki <rafal@milecki.pl>
Date: Fri, 29 Apr 2022 16:26:47 +0000 (+0100)
Subject: nvmem: brcm_nvram: find Device Tree nodes for NVMEM cells
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=207775f7e17b8fd0426a2ac4a5b81e4e1d71849e;p=linux.git

nvmem: brcm_nvram: find Device Tree nodes for NVMEM cells

DT binding for Broadcom's NVRAM supports specifying NVMEM cells as NVMEM
device (provider) subnodes. Look for such subnodes when collecing NVMEM
cells. This allows NVMEM consumers to use NVRAM variables.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220429162701.2222-3-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/nvmem/brcm_nvram.c b/drivers/nvmem/brcm_nvram.c
index 439f00b9eef6e..450b927691c36 100644
--- a/drivers/nvmem/brcm_nvram.c
+++ b/drivers/nvmem/brcm_nvram.c
@@ -8,6 +8,7 @@
 #include <linux/module.h>
 #include <linux/nvmem-consumer.h>
 #include <linux/nvmem-provider.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 
@@ -72,6 +73,7 @@ static int brcm_nvram_add_cells(struct brcm_nvram *priv, uint8_t *data,
 			return -ENOMEM;
 		priv->cells[idx].offset = value - (char *)data;
 		priv->cells[idx].bytes = strlen(value);
+		priv->cells[idx].np = of_get_child_by_name(dev->of_node, priv->cells[idx].name);
 	}
 
 	return 0;