diff options
| author | Srinivas Kandagatla <srinivas.kandagatla@linaro.org> | 2021-10-13 14:19:56 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-10-13 15:33:17 +0200 |
| commit | 5008062f1c3f5af3acf86164aa6fcc77b0c7bdce (patch) | |
| tree | 01ab77834192637f5b5dbf29a63dd5602858ed7f /include/linux/nvmem-provider.h | |
| parent | 7ae6478b304bc004c3139b422665b0e23b57f05c (diff) | |
nvmem: core: add nvmem cell post processing callback
Some NVMEM providers have certain nvmem cells encoded, which requires
post processing before actually using it.
For example mac-address is stored in either in ascii or delimited or reverse-order.
Having a post-process callback hook to provider drivers would enable them to
do this vendor specific post processing before nvmem consumers see it.
Tested-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20211013131957.30271-3-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/nvmem-provider.h')
| -rw-r--r-- | include/linux/nvmem-provider.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/nvmem-provider.h b/include/linux/nvmem-provider.h index 104505e9028f..98efb7b5660d 100644 --- a/include/linux/nvmem-provider.h +++ b/include/linux/nvmem-provider.h @@ -19,6 +19,9 @@ typedef int (*nvmem_reg_read_t)(void *priv, unsigned int offset, void *val, size_t bytes); typedef int (*nvmem_reg_write_t)(void *priv, unsigned int offset, void *val, size_t bytes); +/* used for vendor specific post processing of cell data */ +typedef int (*nvmem_cell_post_process_t)(void *priv, const char *id, unsigned int offset, + void *buf, size_t bytes); enum nvmem_type { NVMEM_TYPE_UNKNOWN = 0, @@ -62,6 +65,7 @@ struct nvmem_keepout { * @no_of_node: Device should not use the parent's of_node even if it's !NULL. * @reg_read: Callback to read data. * @reg_write: Callback to write data. + * @cell_post_process: Callback for vendor specific post processing of cell data * @size: Device size. * @word_size: Minimum read/write access granularity. * @stride: Minimum read/write access stride. @@ -92,6 +96,7 @@ struct nvmem_config { bool no_of_node; nvmem_reg_read_t reg_read; nvmem_reg_write_t reg_write; + nvmem_cell_post_process_t cell_post_process; int size; int word_size; int stride; |