67 lines
1.7 KiB
C
67 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2019 MediaTek Inc.
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*/
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#ifndef __SOC_MTK_DVFSRC_H
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#define __SOC_MTK_DVFSRC_H
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#define MTK_DVFSRC_CMD_BW_REQUEST 0
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#define MTK_DVFSRC_CMD_OPP_REQUEST 1
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#define MTK_DVFSRC_CMD_VCORE_REQUEST 2
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#define MTK_DVFSRC_CMD_HRTBW_REQUEST 3
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#define MTK_DVFSRC_CMD_VSCP_REQUEST 4
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#define MTK_DVFSRC_CMD_FORCE_OPP_REQUEST 5
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#define MTK_DVFSRC_CMD_DRAM_REQUEST 7
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#define MTK_DVFSRC_CMD_EXT_DRAM_REQUEST 8
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#define MTK_DVFSRC_CMD_EXT_BW_REQUEST 9
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#define MTK_DVFSRC_CMD_VCORE_QUERY 0
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#define MTK_DVFSRC_CMD_VCP_QUERY 1
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#define MTK_DVFSRC_CMD_CURR_LEVEL_QUERY 2
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#define MTK_SIP_SPM_DVFSRC_INIT 0
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#if IS_ENABLED(CONFIG_MTK_DVFSRC)
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void 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 void mtk_dvfsrc_send_request(const struct device *dev, u32 cmd,
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u64 data)
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{ }
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static inline int mtk_dvfsrc_query_info(const struct device *dev, u32 cmd,
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int *data)
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{ return -EINVAL; }
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#endif
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static inline struct device_node *dvfsrc_parse_required_opp(
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struct device_node *np, int index)
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{
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struct device_node *required_np;
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required_np = of_parse_phandle(np, "required-opps", index);
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if (unlikely(!required_np)) {
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pr_notice("%s: Unable to parse required-opps: %pOF, index: %d\n",
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__func__, np, index);
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}
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return required_np;
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}
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static inline int dvfsrc_get_required_opp_performance_state(
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struct device_node *np, int index)
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{
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struct device_node *required_np;
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int pstate = -EINVAL;
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required_np = dvfsrc_parse_required_opp(np, index);
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if (!required_np)
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return -EINVAL;
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of_property_read_u32(required_np, "opp-level", &pstate);
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of_node_put(required_np);
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return pstate;
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}
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#endif/* CONFIG_MTK_DVFSRC */
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