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- /*
- * 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;
- /* 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)
- /**
- * struct gdsc - Globally Distributed Switch Controller
- * @pd: generic power domain
- * @regmap: regmap for MMIO accesses
- * @gdscr: gsdc control 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 regmap *regmap;
- unsigned int gdscr;
- unsigned int *cxcs;
- unsigned int cxc_count;
- const u8 pwrsts;
- struct reset_controller_dev *rcdev;
- unsigned int *resets;
- unsigned int reset_count;
- };
- #ifdef CONFIG_QCOM_GDSC
- int gdsc_register(struct device *, struct gdsc **, size_t n,
- struct reset_controller_dev *, struct regmap *);
- void gdsc_unregister(struct device *);
- #else
- static inline int gdsc_register(struct device *d, struct gdsc **g, size_t n,
- struct reset_controller_dev *rcdev,
- struct regmap *r)
- {
- return -ENOSYS;
- }
- static inline void gdsc_unregister(struct device *d) {};
- #endif /* CONFIG_QCOM_GDSC */
- #endif /* __QCOM_GDSC_H__ */
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