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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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a8dc26a0ec
To allow ACPM clients to simply be children of the ACPM node in DT, they need to be able to get the ACPM handle based on that ACPM node directly. Add an API to allow them to do so, devm_acpm_get_by_node(). At the same time, the previous approach of acquiring the ACPM handle via a DT phandle is now obsolete and we can remove devm_acpm_get_by_phandle(), which was there to facilitate that. There are no existing or anticipated upcoming users of that API, because all clients should be children of the ACPM node going forward. Note that no DTs have been merged that use the old approach, so doing this API change in this driver now will not affect any existing DTs or client drivers. Signed-off-by: André Draszik <andre.draszik@linaro.org> Link: https://lore.kernel.org/r/20250327-acpm-children-v1-2-0afe15ee2ff7@linaro.org Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
52 lines
1.3 KiB
C
52 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright 2020 Samsung Electronics Co., Ltd.
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* Copyright 2020 Google LLC.
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* Copyright 2024 Linaro Ltd.
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*/
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#ifndef __EXYNOS_ACPM_PROTOCOL_H
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#define __EXYNOS_ACPM_PROTOCOL_H
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#include <linux/types.h>
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struct acpm_handle;
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struct device_node;
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struct acpm_pmic_ops {
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int (*read_reg)(const struct acpm_handle *handle,
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unsigned int acpm_chan_id, u8 type, u8 reg, u8 chan,
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u8 *buf);
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int (*bulk_read)(const struct acpm_handle *handle,
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unsigned int acpm_chan_id, u8 type, u8 reg, u8 chan,
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u8 count, u8 *buf);
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int (*write_reg)(const struct acpm_handle *handle,
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unsigned int acpm_chan_id, u8 type, u8 reg, u8 chan,
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u8 value);
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int (*bulk_write)(const struct acpm_handle *handle,
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unsigned int acpm_chan_id, u8 type, u8 reg, u8 chan,
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u8 count, const u8 *buf);
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int (*update_reg)(const struct acpm_handle *handle,
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unsigned int acpm_chan_id, u8 type, u8 reg, u8 chan,
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u8 value, u8 mask);
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};
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struct acpm_ops {
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struct acpm_pmic_ops pmic_ops;
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};
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/**
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* struct acpm_handle - Reference to an initialized protocol instance
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* @ops:
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*/
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struct acpm_handle {
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struct acpm_ops ops;
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};
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struct device;
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const struct acpm_handle *devm_acpm_get_by_node(struct device *dev,
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struct device_node *np);
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#endif /* __EXYNOS_ACPM_PROTOCOL_H */
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