diff options
Diffstat (limited to 'drivers/clk/sunxi-ng/ccu_common.h')
| -rw-r--r-- | drivers/clk/sunxi-ng/ccu_common.h | 33 |
1 files changed, 21 insertions, 12 deletions
diff --git a/drivers/clk/sunxi-ng/ccu_common.h b/drivers/clk/sunxi-ng/ccu_common.h index 568cfaed0813..bbec283b9d99 100644 --- a/drivers/clk/sunxi-ng/ccu_common.h +++ b/drivers/clk/sunxi-ng/ccu_common.h @@ -1,14 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2016 Maxime Ripard. All rights reserved. - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * 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 _COMMON_H_ @@ -25,10 +17,17 @@ #define CCU_FEATURE_LOCK_REG BIT(5) #define CCU_FEATURE_MMC_TIMING_SWITCH BIT(6) #define CCU_FEATURE_SIGMA_DELTA_MOD BIT(7) +#define CCU_FEATURE_KEY_FIELD BIT(8) +#define CCU_FEATURE_CLOSEST_RATE BIT(9) +#define CCU_FEATURE_DUAL_DIV BIT(10) +#define CCU_FEATURE_UPDATE_BIT BIT(11) /* MMC timing mode switch bit */ #define CCU_MMC_NEW_TIMING_MODE BIT(30) +/* Some clocks need this bit to actually apply register changes */ +#define CCU_SUNXI_UPDATE_BIT BIT(27) + struct device_node; struct ccu_common { @@ -37,6 +36,9 @@ struct ccu_common { u16 lock_reg; u32 prediv; + unsigned long min_rate; + unsigned long max_rate; + unsigned long features; spinlock_t *lock; struct clk_hw hw; @@ -53,12 +55,17 @@ struct sunxi_ccu_desc { struct clk_hw_onecell_data *hw_clks; - struct ccu_reset_map *resets; + const struct ccu_reset_map *resets; unsigned long num_resets; }; void ccu_helper_wait_for_lock(struct ccu_common *common, u32 lock); +bool ccu_is_better_rate(struct ccu_common *common, + unsigned long target_rate, + unsigned long current_rate, + unsigned long best_rate); + struct ccu_pll_nb { struct notifier_block clk_nb; struct ccu_common *common; @@ -71,7 +78,9 @@ struct ccu_pll_nb { int ccu_pll_notifier_register(struct ccu_pll_nb *pll_nb); -int sunxi_ccu_probe(struct device_node *node, void __iomem *reg, - const struct sunxi_ccu_desc *desc); +int devm_sunxi_ccu_probe(struct device *dev, void __iomem *reg, + const struct sunxi_ccu_desc *desc); +void of_sunxi_ccu_probe(struct device_node *node, void __iomem *reg, + const struct sunxi_ccu_desc *desc); #endif /* _COMMON_H_ */ |