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Rafał Miłecki
2cc3b37f5b
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 It has been replaced by the "fixed-layout" NVMEM layout binding.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 <[email protected]> [for meson-{efuse,mx-efuse}.c] Acked-by: Martin Blumenstingl <[email protected]> [for mtk-efuse.c, nvmem/core.c, nvmem-provider.h] Reviewed-by: AngeloGioacchino Del Regno <[email protected]> [MT8192, MT8195 Chromebooks] Tested-by: AngeloGioacchino Del Regno <[email protected]> [for microchip-otpc.c] Reviewed-by: Claudiu Beznea <[email protected]> [SAMA7G5-EK] Tested-by: Claudiu Beznea <[email protected]> Acked-by: Jernej Skrabec <[email protected]> Signed-off-by: Srinivas Kandagatla <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
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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