diff options
Diffstat (limited to 'target/linux/generic/backport-5.10/806-v5.16-0002-nvmem-core-add-nvmem-cell-post-processing-callback.patch')
| -rw-r--r-- | target/linux/generic/backport-5.10/806-v5.16-0002-nvmem-core-add-nvmem-cell-post-processing-callback.patch | 82 |
1 files changed, 0 insertions, 82 deletions
diff --git a/target/linux/generic/backport-5.10/806-v5.16-0002-nvmem-core-add-nvmem-cell-post-processing-callback.patch b/target/linux/generic/backport-5.10/806-v5.16-0002-nvmem-core-add-nvmem-cell-post-processing-callback.patch deleted file mode 100644 index 16eb07147e..0000000000 --- a/target/linux/generic/backport-5.10/806-v5.16-0002-nvmem-core-add-nvmem-cell-post-processing-callback.patch +++ /dev/null @@ -1,82 +0,0 @@ -From 5008062f1c3f5af3acf86164aa6fcc77b0c7bdce Mon Sep 17 00:00:00 2001 -From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> -Date: Wed, 13 Oct 2021 14:19:56 +0100 -Subject: [PATCH] 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> ---- - drivers/nvmem/core.c | 9 +++++++++ - include/linux/nvmem-provider.h | 5 +++++ - 2 files changed, 14 insertions(+) - ---- a/drivers/nvmem/core.c -+++ b/drivers/nvmem/core.c -@@ -38,6 +38,7 @@ struct nvmem_device { - unsigned int nkeepout; - nvmem_reg_read_t reg_read; - nvmem_reg_write_t reg_write; -+ nvmem_cell_post_process_t cell_post_process; - struct gpio_desc *wp_gpio; - void *priv; - }; -@@ -799,6 +800,7 @@ struct nvmem_device *nvmem_register(cons - nvmem->type = config->type; - nvmem->reg_read = config->reg_read; - nvmem->reg_write = config->reg_write; -+ nvmem->cell_post_process = config->cell_post_process; - nvmem->keepout = config->keepout; - nvmem->nkeepout = config->nkeepout; - if (config->of_node) -@@ -1444,6 +1446,13 @@ static int __nvmem_cell_read(struct nvme - if (cell->bit_offset || cell->nbits) - nvmem_shift_read_buffer_in_place(cell, buf); - -+ if (nvmem->cell_post_process) { -+ rc = nvmem->cell_post_process(nvmem->priv, id, -+ cell->offset, buf, cell->bytes); -+ if (rc) -+ return rc; -+ } -+ - if (len) - *len = cell->bytes; - ---- a/include/linux/nvmem-provider.h -+++ b/include/linux/nvmem-provider.h -@@ -19,6 +19,9 @@ typedef int (*nvmem_reg_read_t)(void *pr - 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; |