From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/clk/baikal-t1/ccu-rst.h | 67 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 drivers/clk/baikal-t1/ccu-rst.h (limited to 'drivers/clk/baikal-t1/ccu-rst.h') diff --git a/drivers/clk/baikal-t1/ccu-rst.h b/drivers/clk/baikal-t1/ccu-rst.h new file mode 100644 index 000000000..d6e8b2f67 --- /dev/null +++ b/drivers/clk/baikal-t1/ccu-rst.h @@ -0,0 +1,67 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2021 BAIKAL ELECTRONICS, JSC + * + * Baikal-T1 CCU Resets interface driver + */ +#ifndef __CLK_BT1_CCU_RST_H__ +#define __CLK_BT1_CCU_RST_H__ + +#include +#include +#include + +struct ccu_rst_info; + +/* + * enum ccu_rst_type - CCU Reset types + * @CCU_RST_TRIG: Self-deasserted reset signal. + * @CCU_RST_DIR: Directly controlled reset signal. + */ +enum ccu_rst_type { + CCU_RST_TRIG, + CCU_RST_DIR, +}; + +/* + * struct ccu_rst_init_data - CCU Resets initialization data + * @sys_regs: Baikal-T1 System Controller registers map. + * @np: Pointer to the node with the System CCU block. + */ +struct ccu_rst_init_data { + struct regmap *sys_regs; + struct device_node *np; +}; + +/* + * struct ccu_rst - CCU Reset descriptor + * @rcdev: Reset controller descriptor. + * @sys_regs: Baikal-T1 System Controller registers map. + * @rsts_info: Reset flag info (base address and mask). + */ +struct ccu_rst { + struct reset_controller_dev rcdev; + struct regmap *sys_regs; + const struct ccu_rst_info *rsts_info; +}; +#define to_ccu_rst(_rcdev) container_of(_rcdev, struct ccu_rst, rcdev) + +#ifdef CONFIG_CLK_BT1_CCU_RST + +struct ccu_rst *ccu_rst_hw_register(const struct ccu_rst_init_data *init); + +void ccu_rst_hw_unregister(struct ccu_rst *rst); + +#else + +static inline +struct ccu_rst *ccu_rst_hw_register(const struct ccu_rst_init_data *init) +{ + return NULL; +} + +static inline void ccu_rst_hw_unregister(struct ccu_rst *rst) {} + +#endif + +#endif /* __CLK_BT1_CCU_RST_H__ */ -- cgit v1.2.3