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192514ae05
The Dynamic Voltage and Frequency Scaling Resource Collector (DVFSRC) is a Hardware module used to collect all the requests from both software and the various remote processors embedded into the SoC and decide about a minimum operating voltage and a minimum DRAM frequency to fulfill those requests in an effort to provide the best achievable performance per watt. This hardware IP is capable of transparently performing direct register R/W on all of the DVFSRC-controlled regulators and SoC bandwidth knobs. This driver includes support for MT8183, MT8192 and MT8195. Co-Developed-by: Dawei Chien <dawei.chien@mediatek.com> [Angelo: Partial refactoring and cleanups] Reviewed-by: Georgi Djakov <djakov@kerenl.org> Link: https://lore.kernel.org/r/20240610085735.147134-5-angelogioacchino.delregno@collabora.com Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
37 lines
903 B
C
37 lines
903 B
C
/* SPDX-License-Identifier: GPL-2.0
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*
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* Copyright (c) 2021 MediaTek Inc.
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* Copyright (c) 2024 Collabora Ltd.
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* AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
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*/
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#ifndef __MEDIATEK_DVFSRC_H
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#define __MEDIATEK_DVFSRC_H
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enum mtk_dvfsrc_cmd {
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MTK_DVFSRC_CMD_BW,
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MTK_DVFSRC_CMD_HRT_BW,
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MTK_DVFSRC_CMD_PEAK_BW,
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MTK_DVFSRC_CMD_OPP,
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MTK_DVFSRC_CMD_VCORE_LEVEL,
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MTK_DVFSRC_CMD_VSCP_LEVEL,
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MTK_DVFSRC_CMD_MAX,
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};
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#if IS_ENABLED(CONFIG_MTK_DVFSRC)
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int mtk_dvfsrc_send_request(const struct device *dev, u32 cmd, u64 data);
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int mtk_dvfsrc_query_info(const struct device *dev, u32 cmd, int *data);
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#else
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static inline int mtk_dvfsrc_send_request(const struct device *dev, u32 cmd, u64 data)
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{ return -ENODEV; }
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static inline int mtk_dvfsrc_query_info(const struct device *dev, u32 cmd, int *data)
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{ return -ENODEV; }
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#endif /* CONFIG_MTK_DVFSRC */
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#endif
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