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| author |   Rafał Miłecki <rafal@milecki.pl> | 2023-10-20 11:55:41 +0100 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-10-21 19:19:06 +0200 |
| commit | 2cc3b37f5b6df8189d55d0e812d9658ce256dfec (patch) | |
| tree | cb17aacc16e6f25420f544ae801d5934b9163a8b /include/linux/nvmem-provider.h | |
| parent | nvmem: qfprom: Mark core clk as optional (diff) | |
| download | wireguard-linux-2cc3b37f5b6df8189d55d0e812d9658ce256dfec.tar.xz wireguard-linux-2cc3b37f5b6df8189d55d0e812d9658ce256dfec.zip | |
nvmem: add explicit config option to read old syntax fixed OF cells
Binding for fixed NVMEM cells defined directly as NVMEM device subnodes
has been deprecated. It has been replaced by the "fixed-layout" NVMEM
layout binding.
New syntax is meant to be clearer and should help avoiding imprecise
bindings.
NVMEM subsystem already supports the new binding. It should be a good
idea to limit support for old syntax to existing drivers that actually
support & use it (we can't break backward compatibility!). That way we
additionally encourage new bindings & drivers to ignore deprecated
binding.
It wasn't clear (to me) if rtc and w1 code actually uses old syntax
fixed cells. I enabled them to don't risk any breakage.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
[for meson-{efuse,mx-efuse}.c]
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
[for mtk-efuse.c, nvmem/core.c, nvmem-provider.h]
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
[MT8192, MT8195 Chromebooks]
Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
[for microchip-otpc.c]
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
[SAMA7G5-EK]
Tested-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20231020105545.216052-3-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 | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/nvmem-provider.h b/include/linux/nvmem-provider.h index dae26295e6be..1b81adebdb8b 100644 --- a/include/linux/nvmem-provider.h +++ b/include/linux/nvmem-provider.h @@ -82,6 +82,7 @@ struct nvmem_cell_info { * @owner: Pointer to exporter module. Used for refcounting. * @cells: Optional array of pre-defined NVMEM cells. * @ncells: Number of elements in cells. + * @add_legacy_fixed_of_cells: Read fixed NVMEM cells from old OF syntax. * @keepout: Optional array of keepout ranges (sorted ascending by start). * @nkeepout: Number of elements in the keepout array. * @type: Type of the nvmem storage @@ -112,6 +113,7 @@ struct nvmem_config { struct module *owner; const struct nvmem_cell_info *cells; int ncells; + bool add_legacy_fixed_of_cells; const struct nvmem_keepout *keepout; unsigned int nkeepout; enum nvmem_type type; |