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| author |   Fabrice Gasnier <fabrice.gasnier@st.com> | 2019-04-13 11:32:57 +0100 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-04-25 19:43:12 +0200 |
| commit | 0a9b2d1ce42210d087d32b1979d3ada343537708 (patch) | |
| tree | a30eb5aac596803d9a18e70c687c11d6071ca657 /include/linux/nvmem-consumer.h | |
| parent | nvmem: stm32: add support for STM32MP15 BSEC to control OTP data (diff) | |
| download | linux-dev-0a9b2d1ce42210d087d32b1979d3ada343537708.tar.xz linux-dev-0a9b2d1ce42210d087d32b1979d3ada343537708.zip | |
nvmem: core: add nvmem_cell_read_u16
Add nvmem_cell_read_u16() helper to ease read of an u16 value on consumer
side. This is inspired by nvmem_cell_read_u32() function.
This helper is useful on stm32 that has 16 bits data cells stored in non
volatile memory.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/nvmem-consumer.h')
| -rw-r--r-- | include/linux/nvmem-consumer.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/nvmem-consumer.h b/include/linux/nvmem-consumer.h index 312bfa5efd80..8f8be5b00060 100644 --- a/include/linux/nvmem-consumer.h +++ b/include/linux/nvmem-consumer.h @@ -61,6 +61,7 @@ void nvmem_cell_put(struct nvmem_cell *cell); void devm_nvmem_cell_put(struct device *dev, struct nvmem_cell *cell); void *nvmem_cell_read(struct nvmem_cell *cell, size_t *len); int nvmem_cell_write(struct nvmem_cell *cell, void *buf, size_t len); +int nvmem_cell_read_u16(struct device *dev, const char *cell_id, u16 *val); int nvmem_cell_read_u32(struct device *dev, const char *cell_id, u32 *val); /* direct nvmem device read/write interface */ @@ -122,6 +123,12 @@ static inline int nvmem_cell_write(struct nvmem_cell *cell, return -EOPNOTSUPP; } +static inline int nvmem_cell_read_u16(struct device *dev, + const char *cell_id, u16 *val) +{ + return -EOPNOTSUPP; +} + static inline int nvmem_cell_read_u32(struct device *dev, const char *cell_id, u32 *val) { |