projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 0ad6125b BB |
1 | /* |
| 2 | * drivers/clk/at91/pmc.h | |
| 3 | * | |
| 4 | * Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.com> | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or modify | |
| 7 | * it under the terms of the GNU General Public License as published by | |
| 8 | * the Free Software Foundation; either version 2 of the License, or | |
| 9 | * (at your option) any later version. | |
| 10 | */ | |
| 11 | ||
| 12 | #ifndef __PMC_H_ | |
| 13 | #define __PMC_H_ | |
| 14 | ||
| 15 | #include <linux/io.h> | |
| 16 | #include <linux/irqdomain.h> | |
| 17 | #include <linux/spinlock.h> | |
| 18 | ||
| 19 | struct clk_range { | |
| 20 | unsigned long min; | |
| 21 | unsigned long max; | |
| 22 | }; | |
| 23 | ||
| 24 | #define CLK_RANGE(MIN, MAX) {.min = MIN, .max = MAX,} | |
| 25 | ||
| 26 | struct at91_pmc_caps { | |
| 27 | u32 available_irqs; | |
| 28 | }; | |
| 29 | ||
| 30 | struct at91_pmc { | |
| 31 | void __iomem *regbase; | |
| 32 | int virq; | |
| 33 | spinlock_t lock; | |
| 34 | const struct at91_pmc_caps *caps; | |
| 35 | struct irq_domain *irqdomain; | |
| 36 | }; | |
| 37 | ||
| 38 | static inline void pmc_lock(struct at91_pmc *pmc) | |
| 39 | { | |
| 40 | spin_lock(&pmc->lock); | |
| 41 | } | |
| 42 | ||
| 43 | static inline void pmc_unlock(struct at91_pmc *pmc) | |
| 44 | { | |
| 45 | spin_unlock(&pmc->lock); | |
| 46 | } | |
| 47 | ||
| 48 | static inline u32 pmc_read(struct at91_pmc *pmc, int offset) | |
| 49 | { | |
| 50 | return readl(pmc->regbase + offset); | |
| 51 | } | |
| 52 | ||
| 53 | static inline void pmc_write(struct at91_pmc *pmc, int offset, u32 value) | |
| 54 | { | |
| 55 | writel(value, pmc->regbase + offset); | |
| 56 | } | |
| 57 | ||
| 58 | int of_at91_get_clk_range(struct device_node *np, const char *propname, | |
| 59 | struct clk_range *range); | |
| 60 | ||
| 61 | #endif /* __PMC_H_ */ |