mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-21 14:37:57 +00:00
48 lines
1.5 KiB
Diff
48 lines
1.5 KiB
Diff
From 98e2c4efae214fb7086cac9117616eb6ea11475d Mon Sep 17 00:00:00 2001
|
|
From: Chunfeng Yun <chunfeng.yun@mediatek.com>
|
|
Date: Thu, 9 Dec 2021 17:42:34 +0000
|
|
Subject: [PATCH] nvmem: mtk-efuse: support minimum one byte access stride and
|
|
granularity
|
|
|
|
In order to support nvmem bits property, should support minimum 1 byte
|
|
read stride and minimum 1 byte read granularity at the same time.
|
|
|
|
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
|
|
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
|
|
Link: https://lore.kernel.org/r/20211209174235.14049-4-srinivas.kandagatla@linaro.org
|
|
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
---
|
|
drivers/nvmem/mtk-efuse.c | 13 +++++++------
|
|
1 file changed, 7 insertions(+), 6 deletions(-)
|
|
|
|
--- a/drivers/nvmem/mtk-efuse.c
|
|
+++ b/drivers/nvmem/mtk-efuse.c
|
|
@@ -19,11 +19,12 @@ static int mtk_reg_read(void *context,
|
|
unsigned int reg, void *_val, size_t bytes)
|
|
{
|
|
struct mtk_efuse_priv *priv = context;
|
|
- u32 *val = _val;
|
|
- int i = 0, words = bytes / 4;
|
|
+ void __iomem *addr = priv->base + reg;
|
|
+ u8 *val = _val;
|
|
+ int i;
|
|
|
|
- while (words--)
|
|
- *val++ = readl(priv->base + reg + (i++ * 4));
|
|
+ for (i = 0; i < bytes; i++, val++)
|
|
+ *val = readb(addr + i);
|
|
|
|
return 0;
|
|
}
|
|
@@ -45,8 +46,8 @@ static int mtk_efuse_probe(struct platfo
|
|
if (IS_ERR(priv->base))
|
|
return PTR_ERR(priv->base);
|
|
|
|
- econfig.stride = 4;
|
|
- econfig.word_size = 4;
|
|
+ econfig.stride = 1;
|
|
+ econfig.word_size = 1;
|
|
econfig.reg_read = mtk_reg_read;
|
|
econfig.size = resource_size(res);
|
|
econfig.priv = priv;
|