mirror of https://gitee.com/openkylin/linux.git
74 lines
1.9 KiB
C
74 lines
1.9 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2020 Linaro Ltd
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*/
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#ifndef __DRIVERS_INTERCONNECT_QCOM_ICC_RPM_H
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#define __DRIVERS_INTERCONNECT_QCOM_ICC_RPM_H
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#define RPM_BUS_MASTER_REQ 0x73616d62
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#define RPM_BUS_SLAVE_REQ 0x766c7362
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#define QCOM_MAX_LINKS 12
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#define to_qcom_provider(_provider) \
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container_of(_provider, struct qcom_icc_provider, provider)
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/**
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* struct qcom_icc_provider - Qualcomm specific interconnect provider
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* @provider: generic interconnect provider
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* @bus_clks: the clk_bulk_data table of bus clocks
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* @num_clks: the total number of clk_bulk_data entries
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*/
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struct qcom_icc_provider {
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struct icc_provider provider;
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struct clk_bulk_data *bus_clks;
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int num_clks;
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};
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/**
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* struct qcom_icc_node - Qualcomm specific interconnect nodes
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* @name: the node name used in debugfs
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* @id: a unique node identifier
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* @links: an array of nodes where we can go next while traversing
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* @num_links: the total number of @links
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* @buswidth: width of the interconnect between a node and the bus (bytes)
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* @mas_rpm_id: RPM id for devices that are bus masters
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* @slv_rpm_id: RPM id for devices that are bus slaves
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* @rate: current bus clock rate in Hz
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*/
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struct qcom_icc_node {
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unsigned char *name;
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u16 id;
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u16 links[QCOM_MAX_LINKS];
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u16 num_links;
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u16 buswidth;
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int mas_rpm_id;
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int slv_rpm_id;
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u64 rate;
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};
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struct qcom_icc_desc {
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struct qcom_icc_node **nodes;
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size_t num_nodes;
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};
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#define DEFINE_QNODE(_name, _id, _buswidth, _mas_rpm_id, _slv_rpm_id, \
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...) \
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static struct qcom_icc_node _name = { \
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.name = #_name, \
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.id = _id, \
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.buswidth = _buswidth, \
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.mas_rpm_id = _mas_rpm_id, \
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.slv_rpm_id = _slv_rpm_id, \
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.num_links = ARRAY_SIZE(((int[]){ __VA_ARGS__ })), \
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.links = { __VA_ARGS__ }, \
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}
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int qnoc_probe(struct platform_device *pdev, size_t cd_size, int cd_num,
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const struct clk_bulk_data *cd);
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int qnoc_remove(struct platform_device *pdev);
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#endif
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