From b4b7ff4b08e691656c9d77c758fc355833128ac0 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Wed, 20 Jan 2016 14:01:31 -0300 Subject: Linux-libre 4.4-gnu --- drivers/clk/qcom/gdsc.h | 68 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 drivers/clk/qcom/gdsc.h (limited to 'drivers/clk/qcom/gdsc.h') diff --git a/drivers/clk/qcom/gdsc.h b/drivers/clk/qcom/gdsc.h new file mode 100644 index 000000000..5ded26884 --- /dev/null +++ b/drivers/clk/qcom/gdsc.h @@ -0,0 +1,68 @@ +/* + * 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 +#include + +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__ */ -- cgit v1.2.3-54-g00ecf