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Subject[PATCH] nvmem: uniphier: change access unit from 32bit to 8bit
Date
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>
---
drivers/nvmem/uniphier-efuse.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/nvmem/uniphier-efuse.c b/drivers/nvmem/uniphier-efuse.c
index 2bb45c4..fac3122 100644
--- 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);
--
2.7.4
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