mirror of
https://github.com/commaai/agnos-kernel-sdm845.git
synced 2026-06-14 22:35:05 +08:00
0dc6e78a3f
This is snapshot of the clock framework files as of msm-3.18
'commit c0b3f609196f ("ARM: dts: msm: Remove GPU mempool
for msm8909")'.
Below is the brief description of the additional changes made:
1. Add COMMON_CLK_MSM config flag for conditional compilation for
some common files used between COMMON_CLK_MSM and COMMON_CLK_QCOM
clock framework files.
2. Add reset controller framework files for BCR operation.
3. Add conditional compilation support for FTRACE clock functions
to maintain compatibility for clock framework based on
COMMON_CLK_MSM and COMMON_CLK_QCOM.
4. Add files for GDSC operation.
Change-Id: Ia5688600ca8e548beb15745d3ce938fdf41f82de
Signed-off-by: Shefali Jain <shefjain@codeaurora.org>
145 lines
3.8 KiB
C
145 lines
3.8 KiB
C
/*
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* Copyright (c) 2014, 2017, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#ifndef __ARCH_ARM_MSM_CLOCK_CONTROLLER_H
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#define __ARCH_ARM_MSM_CLOCK_CONTROLLER_H
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#include <linux/list.h>
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#include <linux/clkdev.h>
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#include <linux/of.h>
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#include <linux/platform_device.h>
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#define dt_err(np, fmt, ...) \
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pr_err("%s: " fmt, np->name, ##__VA_ARGS__)
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#define dt_prop_err(np, str, fmt, ...) \
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dt_err(np, "%s: " fmt, str, ##__VA_ARGS__)
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/**
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* struct msmclk_parser
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* @compatible
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* matches compatible property from devicetree
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* @parsedt
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* constructs & returns an instance of the appropriate obj based on
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* the data from devicetree.
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*/
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struct msmclk_parser {
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struct list_head list;
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char *compatible;
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void * (*parsedt)(struct device *dev, struct device_node *of);
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};
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#define MSMCLK_PARSER(fn, str, id) \
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static struct msmclk_parser _msmclk_##fn##id = { \
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.list = LIST_HEAD_INIT(_msmclk_##fn##id.list), \
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.compatible = str, \
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.parsedt = fn, \
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}; \
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static int __init _msmclk_init_##fn##id(void) \
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{ \
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msmclk_parser_register(&_msmclk_##fn##id); \
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return 0; \
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} \
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early_initcall(_msmclk_init_##fn##id)
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/*
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* struct msmclk_data
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* @base
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* ioremapped region for sub_devices
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* @list
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* tracks all registered driver instances
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* @htable
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* tracks all registered child clocks
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* @clk_tbl
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* array of clk_lookup to be registered with the clock framework
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*/
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#define HASHTABLE_SIZE 200
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struct msmclk_data {
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void __iomem *base;
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struct device *dev;
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struct list_head list;
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struct hlist_head htable[HASHTABLE_SIZE];
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struct clk_lookup *clk_tbl;
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int clk_tbl_size;
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int max_clk_tbl_size;
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};
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#if defined(CONFIG_MSM_CLK_CONTROLLER_V2)
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/* Utility functions */
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int of_property_count_phandles(struct device_node *np, char *propname);
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int of_property_read_phandle_index(struct device_node *np, char *propname,
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int index, phandle *p);
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void *msmclk_generic_clk_init(struct device *dev, struct device_node *np,
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struct clk *c);
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/*
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* msmclk_parser_register
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* Registers a parser which will be matched with a node from dt
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* according to the compatible string.
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*/
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void msmclk_parser_register(struct msmclk_parser *p);
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/*
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* msmclk_parse_phandle
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* On hashtable miss, the corresponding entry will be retrieved from
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* devicetree, and added to the hashtable.
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*/
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void *msmclk_parse_phandle(struct device *dev, phandle key);
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/*
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* msmclk_lookup_phandle
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* Straightforward hashtable lookup
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*/
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void *msmclk_lookup_phandle(struct device *dev, phandle key);
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int __init msmclk_init(void);
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#else
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static inline int of_property_count_phandles(struct device_node *np,
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char *propname)
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{
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return 0;
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}
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static inline int of_property_read_phandle_index(struct device_node *np,
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char *propname, int index, phandle *p)
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{
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return 0;
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}
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static inline void *msmclk_generic_clk_init(struct device *dev,
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struct device_node *np, struct clk *c)
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{
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return ERR_PTR(-EINVAL);
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}
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static inline void msmclk_parser_register(struct msmclk_parser *p) {};
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static inline void *msmclk_parse_phandle(struct device *dev, phandle key)
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{
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return ERR_PTR(-EINVAL);
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}
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static inline void *msmclk_lookup_phandle(struct device *dev, phandle key)
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{
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return ERR_PTR(-EINVAL);
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}
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static inline int __init msmclk_init(void)
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{
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return 0;
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}
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#endif /* CONFIG_MSM_CLK_CONTROLLER_V2 */
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#endif /* __ARCH_ARM_MSM_CLOCK_CONTROLLER_H */
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