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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 It has been replaced by the "fixed-layout" NVMEM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>
32 lines
752 B
C
32 lines
752 B
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* RTC subsystem, nvmem interface
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*
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* Copyright (C) 2017 Alexandre Belloni
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*/
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#include <linux/err.h>
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#include <linux/types.h>
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#include <linux/nvmem-consumer.h>
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#include <linux/rtc.h>
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int devm_rtc_nvmem_register(struct rtc_device *rtc,
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struct nvmem_config *nvmem_config)
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{
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struct device *dev = rtc->dev.parent;
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struct nvmem_device *nvmem;
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if (!nvmem_config)
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return -ENODEV;
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nvmem_config->dev = dev;
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nvmem_config->owner = rtc->owner;
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nvmem_config->add_legacy_fixed_of_cells = true;
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nvmem = devm_nvmem_register(dev, nvmem_config);
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if (IS_ERR(nvmem))
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dev_err(dev, "failed to register nvmem device for RTC\n");
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return PTR_ERR_OR_ZERO(nvmem);
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}
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EXPORT_SYMBOL_GPL(devm_rtc_nvmem_register);
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