treewide: remove files for building 5.10 kernel
[openwrt/staging/hauke.git] / target / linux / generic / backport-5.10 / 814-v6.4-0005-nvmem-core-add-per-cell-post-processing.patch
diff --git a/target/linux/generic/backport-5.10/814-v6.4-0005-nvmem-core-add-per-cell-post-processing.patch b/target/linux/generic/backport-5.10/814-v6.4-0005-nvmem-core-add-per-cell-post-processing.patch
deleted file mode 100644 (file)
index 53628cd..0000000
+++ /dev/null
@@ -1,86 +0,0 @@
-From 345ec382cd4b736c36e01f155d08c913b225b736 Mon Sep 17 00:00:00 2001
-From: Michael Walle <michael@walle.cc>
-Date: Tue, 4 Apr 2023 18:21:24 +0100
-Subject: [PATCH] nvmem: core: add per-cell post processing
-
-Instead of relying on the name the consumer is using for the cell, like
-it is done for the nvmem .cell_post_process configuration parameter,
-provide a per-cell post processing hook. This can then be populated by
-the NVMEM provider (or the NVMEM layout) when adding the cell.
-
-Signed-off-by: Michael Walle <michael@walle.cc>
-Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
-Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
-Link: https://lore.kernel.org/r/20230404172148.82422-17-srinivas.kandagatla@linaro.org
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/nvmem/core.c           | 17 +++++++++++++++++
- include/linux/nvmem-provider.h |  3 +++
- 2 files changed, 20 insertions(+)
-
---- a/drivers/nvmem/core.c
-+++ b/drivers/nvmem/core.c
-@@ -54,6 +54,7 @@ struct nvmem_cell_entry {
-       int                     bytes;
-       int                     bit_offset;
-       int                     nbits;
-+      nvmem_cell_post_process_t read_post_process;
-       struct device_node      *np;
-       struct nvmem_device     *nvmem;
-       struct list_head        node;
-@@ -470,6 +471,7 @@ static int nvmem_cell_info_to_nvmem_cell
-       cell->offset = info->offset;
-       cell->bytes = info->bytes;
-       cell->name = info->name;
-+      cell->read_post_process = info->read_post_process;
-       cell->bit_offset = info->bit_offset;
-       cell->nbits = info->nbits;
-@@ -1563,6 +1565,13 @@ static int __nvmem_cell_read(struct nvme
-       if (cell->bit_offset || cell->nbits)
-               nvmem_shift_read_buffer_in_place(cell, buf);
-+      if (cell->read_post_process) {
-+              rc = cell->read_post_process(nvmem->priv, id, index,
-+                                           cell->offset, buf, cell->bytes);
-+              if (rc)
-+                      return rc;
-+      }
-+
-       if (nvmem->cell_post_process) {
-               rc = nvmem->cell_post_process(nvmem->priv, id, index,
-                                             cell->offset, buf, cell->bytes);
-@@ -1671,6 +1680,14 @@ static int __nvmem_cell_entry_write(stru
-           (cell->bit_offset == 0 && len != cell->bytes))
-               return -EINVAL;
-+      /*
-+       * Any cells which have a read_post_process hook are read-only because
-+       * we cannot reverse the operation and it might affect other cells,
-+       * too.
-+       */
-+      if (cell->read_post_process)
-+              return -EINVAL;
-+
-       if (cell->bit_offset || cell->nbits) {
-               buf = nvmem_cell_prepare_write_buffer(cell, buf, len);
-               if (IS_ERR(buf))
---- a/include/linux/nvmem-provider.h
-+++ b/include/linux/nvmem-provider.h
-@@ -54,6 +54,8 @@ struct nvmem_keepout {
-  * @bit_offset:       Bit offset if cell is smaller than a byte.
-  * @nbits:    Number of bits.
-  * @np:               Optional device_node pointer.
-+ * @read_post_process:        Callback for optional post processing of cell data
-+ *                    on reads.
-  */
- struct nvmem_cell_info {
-       const char              *name;
-@@ -62,6 +64,7 @@ struct nvmem_cell_info {
-       unsigned int            bit_offset;
-       unsigned int            nbits;
-       struct device_node      *np;
-+      nvmem_cell_post_process_t read_post_process;
- };
- /**