77 lines
2.7 KiB
Diff
77 lines
2.7 KiB
Diff
From 8a134fd9f9323f4c39ec27055b3d3723cfb5c1e9 Mon Sep 17 00:00:00 2001
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From: Michael Walle <michael@walle.cc>
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Date: Tue, 4 Apr 2023 18:21:28 +0100
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Subject: [PATCH] nvmem: core: provide own priv pointer in post process
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callback
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It doesn't make any more sense to have a opaque pointer set up by the
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nvmem device. Usually, the layout isn't associated with a particular
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nvmem device. Instead, let the caller who set the post process callback
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provide the priv pointer.
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Signed-off-by: Michael Walle <michael@walle.cc>
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Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
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Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
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Link: https://lore.kernel.org/r/20230404172148.82422-21-srinivas.kandagatla@linaro.org
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Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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---
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drivers/nvmem/core.c | 4 +++-
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include/linux/nvmem-provider.h | 5 ++++-
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2 files changed, 7 insertions(+), 2 deletions(-)
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--- a/drivers/nvmem/core.c
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+++ b/drivers/nvmem/core.c
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@@ -54,6 +54,7 @@ struct nvmem_cell_entry {
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int bit_offset;
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int nbits;
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nvmem_cell_post_process_t read_post_process;
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+ void *priv;
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struct device_node *np;
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struct nvmem_device *nvmem;
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struct list_head node;
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@@ -471,6 +472,7 @@ static int nvmem_cell_info_to_nvmem_cell
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cell->bytes = info->bytes;
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cell->name = info->name;
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cell->read_post_process = info->read_post_process;
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+ cell->priv = info->priv;
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cell->bit_offset = info->bit_offset;
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cell->nbits = info->nbits;
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@@ -1568,7 +1570,7 @@ static int __nvmem_cell_read(struct nvme
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nvmem_shift_read_buffer_in_place(cell, buf);
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if (cell->read_post_process) {
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- rc = cell->read_post_process(nvmem->priv, id, index,
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+ rc = cell->read_post_process(cell->priv, id, index,
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cell->offset, buf, cell->bytes);
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if (rc)
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return rc;
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--- a/include/linux/nvmem-provider.h
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+++ b/include/linux/nvmem-provider.h
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@@ -20,7 +20,8 @@ typedef int (*nvmem_reg_write_t)(void *p
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void *val, size_t bytes);
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/* used for vendor specific post processing of cell data */
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typedef int (*nvmem_cell_post_process_t)(void *priv, const char *id, int index,
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- unsigned int offset, void *buf, size_t bytes);
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+ unsigned int offset, void *buf,
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+ size_t bytes);
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enum nvmem_type {
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NVMEM_TYPE_UNKNOWN = 0,
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@@ -56,6 +57,7 @@ struct nvmem_keepout {
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* @np: Optional device_node pointer.
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* @read_post_process: Callback for optional post processing of cell data
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* on reads.
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+ * @priv: Opaque data passed to the read_post_process hook.
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*/
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struct nvmem_cell_info {
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const char *name;
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@@ -65,6 +67,7 @@ struct nvmem_cell_info {
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unsigned int nbits;
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struct device_node *np;
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nvmem_cell_post_process_t read_post_process;
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+ void *priv;
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};
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/**
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