diff options
Diffstat (limited to 'drivers/clk/qcom/gdsc.h')
| -rw-r--r-- | drivers/clk/qcom/gdsc.h | 42 |
1 files changed, 31 insertions, 11 deletions
diff --git a/drivers/clk/qcom/gdsc.h b/drivers/clk/qcom/gdsc.h index 39648348e5ec..dd843e86c05b 100644 --- a/drivers/clk/qcom/gdsc.h +++ b/drivers/clk/qcom/gdsc.h @@ -1,14 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* - * 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. + * Copyright (c) 2015, 2017-2018, 2022, The Linux Foundation. All rights reserved. */ #ifndef __QCOM_GDSC_H__ @@ -18,6 +10,7 @@ #include <linux/pm_domain.h> struct regmap; +struct regulator; struct reset_controller_dev; /** @@ -25,10 +18,15 @@ struct reset_controller_dev; * @pd: generic power domain * @regmap: regmap for MMIO accesses * @gdscr: gsdc control register + * @collapse_ctrl: APCS collapse-vote register + * @collapse_mask: APCS collapse-vote mask * @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 + * @en_rest_wait_val: transition delay value for receiving enr ack signal + * @en_few_wait_val: transition delay value for receiving enf ack signal + * @clk_dis_wait_val: transition delay value for halting clock * @resets: ids of resets associated with this gdsc * @reset_count: number of @resets * @rcdev: reset controller @@ -38,36 +36,58 @@ struct gdsc { struct generic_pm_domain *parent; struct regmap *regmap; unsigned int gdscr; + unsigned int collapse_ctrl; + unsigned int collapse_mask; unsigned int gds_hw_ctrl; unsigned int clamp_io_ctrl; unsigned int *cxcs; unsigned int cxc_count; + unsigned int en_rest_wait_val; + unsigned int en_few_wait_val; + unsigned int clk_dis_wait_val; const u8 pwrsts; /* Powerdomain allowable state bitfields */ #define PWRSTS_OFF BIT(0) +/* + * There is no SW control to transition a GDSC into + * PWRSTS_RET. This happens in HW when the parent + * domain goes down to a low power state + */ #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; + const u16 flags; #define VOTABLE BIT(0) #define CLAMP_IO BIT(1) #define HW_CTRL BIT(2) +#define SW_RESET BIT(3) +#define AON_RESET BIT(4) +#define POLL_CFG_GDSCR BIT(5) +#define ALWAYS_ON BIT(6) +#define RETAIN_FF_ENABLE BIT(7) +#define NO_RET_PERIPH BIT(8) +#define HW_CTRL_TRIGGER BIT(9) struct reset_controller_dev *rcdev; unsigned int *resets; unsigned int reset_count; + + const char *supply; + struct regulator *rsupply; }; struct gdsc_desc { struct device *dev; struct gdsc **scs; size_t num; + struct dev_pm_domain_list *pd_list; }; #ifdef CONFIG_QCOM_GDSC int gdsc_register(struct gdsc_desc *desc, struct reset_controller_dev *, struct regmap *); void gdsc_unregister(struct gdsc_desc *desc); +int gdsc_gx_do_nothing_enable(struct generic_pm_domain *domain); #else static inline int gdsc_register(struct gdsc_desc *desc, struct reset_controller_dev *rcdev, |