nvmem: uniphier: change access unit from 32bit to 8bit

The efuse on UniPhier allows 8bit access according to the specification.
Since bit offset of nvmem is limited to 0-7, it is desiable to change
access unit of nvmem to 8bit.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/nvmem/uniphier-efuse.c b/drivers/nvmem/uniphier-efuse.c
index 9d278b4e1dc70552d62de529a0ee79002a22f965..be11880a1358d95dfec7f4955fa83de4c28b9a65 100644 (file)
--- a/drivers/nvmem/uniphier-efuse.c
+++ b/drivers/nvmem/uniphier-efuse.c
@@ -27,11 +27,11 @@ static int uniphier_reg_read(void *context,
                             unsigned int reg, void *_val, size_t bytes)
 {
        struct uniphier_efuse_priv *priv = context;
-       u32 *val = _val;
+       u8 *val = _val;
        int offs;
 
-       for (offs = 0; offs < bytes; offs += sizeof(u32))
-               *val++ = readl(priv->base + reg + offs);
+       for (offs = 0; offs < bytes; offs += sizeof(u8))
+               *val++ = readb(priv->base + reg + offs);
 
        return 0;
 }
@@ -53,8 +53,8 @@ static int uniphier_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.read_only = true;
        econfig.reg_read = uniphier_reg_read;
        econfig.size = resource_size(res);