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@xxxxxxxxxxxx>
---
drivers/nvmem/mtk-efuse.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/drivers/nvmem/mtk-efuse.c b/drivers/nvmem/mtk-efuse.c
index 6a537d959f14..e9a375dd84af 100644
--- 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 platform_device *pdev)
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;
--
2.18.0
