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| author | Kunihiko Hayashi <hayashi.kunihiko@socionext.com> | 2017-12-15 15:06:07 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-12-19 10:39:33 +0100 |
| commit | 683618b0639387c5eda79b2f2753c35f3dd648d7 (patch) | |
| tree | 6a59915a1704c4a9eb7c5c977601a4a283db193c /drivers/nvmem | |
| parent | nvmem: core: switch to device_property_present for reading property "read-only" (diff) | |
| download | linux-683618b0639387c5eda79b2f2753c35f3dd648d7.tar.xz linux-683618b0639387c5eda79b2f2753c35f3dd648d7.zip | |
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>
Diffstat (limited to 'drivers/nvmem')
| -rw-r--r-- | drivers/nvmem/uniphier-efuse.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/nvmem/uniphier-efuse.c b/drivers/nvmem/uniphier-efuse.c index 9d278b4e1dc7..be11880a1358 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); |