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Release 4.11 drivers/clk/qcom/gdsc.h

Directory: drivers/clk/qcom
/*
 * Copyright (c) 2015, The Linux Foundation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 and
 * only version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#ifndef __QCOM_GDSC_H__

#define __QCOM_GDSC_H__

#include <linux/err.h>
#include <linux/pm_domain.h>

struct regmap;
struct reset_controller_dev;

/**
 * struct gdsc - Globally Distributed Switch Controller
 * @pd: generic power domain
 * @regmap: regmap for MMIO accesses
 * @gdscr: gsdc control register
 * @gds_hw_ctrl: gds_hw_ctrl register
 * @cxcs: offsets of branch registers to toggle mem/periph bits in
 * @cxc_count: number of @cxcs
 * @pwrsts: Possible powerdomain power states
 * @resets: ids of resets associated with this gdsc
 * @reset_count: number of @resets
 * @rcdev: reset controller
 */

struct gdsc {
	
struct generic_pm_domain	pd;
	
struct generic_pm_domain	*parent;
	
struct regmap			*regmap;
	
unsigned int			gdscr;
	
unsigned int			gds_hw_ctrl;
	
unsigned int			clamp_io_ctrl;
	
unsigned int			*cxcs;
	
unsigned int			cxc_count;
	
const u8			pwrsts;
/* Powerdomain allowable state bitfields */

#define PWRSTS_OFF		BIT(0)

#define PWRSTS_RET		BIT(1)

#define PWRSTS_ON		BIT(2)

#define PWRSTS_OFF_ON		(PWRSTS_OFF | PWRSTS_ON)

#define PWRSTS_RET_ON		(PWRSTS_RET | PWRSTS_ON)
	
const u8			flags;

#define VOTABLE		BIT(0)

#define CLAMP_IO	BIT(1)

#define HW_CTRL		BIT(2)
	
struct reset_controller_dev	*rcdev;
	
unsigned int			*resets;
	
unsigned int			reset_count;
};


struct gdsc_desc {
	
struct device *dev;
	
struct gdsc **scs;
	
size_t num;
};

#ifdef CONFIG_QCOM_GDSC
int gdsc_register(struct gdsc_desc *desc, struct reset_controller_dev *,
		  struct regmap *);
void gdsc_unregister(struct gdsc_desc *desc);
#else

static inline int gdsc_register(struct gdsc_desc *desc, struct reset_controller_dev *rcdev, struct regmap *r) { return -ENOSYS; }

Contributors

PersonTokensPropCommitsCommitProp
Stephen Boyd1973.08%133.33%
Rajendra Nayak726.92%266.67%
Total26100.00%3100.00%


static inline void gdsc_unregister(struct gdsc_desc *desc) {}

Contributors

PersonTokensPropCommitsCommitProp
Stephen Boyd981.82%150.00%
Rajendra Nayak218.18%150.00%
Total11100.00%2100.00%

; #endif /* CONFIG_QCOM_GDSC */ #endif /* __QCOM_GDSC_H__ */

Overall Contributors

PersonTokensPropCommitsCommitProp
Rajendra Nayak11755.98%787.50%
Stephen Boyd9244.02%112.50%
Total209100.00%8100.00%
Directory: drivers/clk/qcom
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