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    Subject[PATCH 1/8] nvmem: core: Set the provider read-only when no write callback is given
    Date
    If no write callback is given the device should be marked as read-only.
    While at it also move from a bit or to a logical or as that is a logical
    expression.

    Signed-off-by: Alban Bedel <albeu@free.fr>
    ---
    drivers/nvmem/core.c | 4 ++--
    1 file changed, 2 insertions(+), 2 deletions(-)

    diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
    index f7301bb4ef3b..cf2e1091fe89 100644
    --- a/drivers/nvmem/core.c
    +++ b/drivers/nvmem/core.c
    @@ -646,8 +646,8 @@ struct nvmem_device *nvmem_register(const struct nvmem_config *config)
    config->name ? config->id : nvmem->id);
    }

    - nvmem->read_only = device_property_present(config->dev, "read-only") |
    - config->read_only;
    + nvmem->read_only = device_property_present(config->dev, "read-only") ||
    + config->read_only || !nvmem->reg_write;

    if (config->root_only)
    nvmem->dev.groups = nvmem->read_only ?
    --
    2.19.1
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