diff options
| author | Boris Brezillon <boris.brezillon@free-electrons.com> | 2014-09-05 11:54:13 +0400 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2016-02-17 19:52:58 +0300 |
| commit | 863a81c3be1d931bdae6426e231add9334311f13 (patch) | |
| tree | 425f5509a766c4025821457a5c10cb258fc343f7 /drivers/clk/at91/pmc.h | |
| parent | 92e963f50fc74041b5e9e744c330dca48e04f08d (diff) | |
| download | linux-863a81c3be1d931bdae6426e231add9334311f13.tar.xz | |
clk: at91: make use of syscon to share PMC registers in several drivers
The PMC block is providing several functionnalities:
- system clk management
- cpuidle
- platform suspend
Replace the void __iomem *regs field by a regmap (retrieved using syscon)
so that we can later share the regmap across several drivers without
exporting a new specific API or a global void __iomem * variable.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Diffstat (limited to 'drivers/clk/at91/pmc.h')
| -rw-r--r-- | drivers/clk/at91/pmc.h | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/clk/at91/pmc.h b/drivers/clk/at91/pmc.h index f65739272779..e1fc0b0e1d8c 100644 --- a/drivers/clk/at91/pmc.h +++ b/drivers/clk/at91/pmc.h @@ -14,6 +14,7 @@ #include <linux/io.h> #include <linux/irqdomain.h> +#include <linux/regmap.h> #include <linux/spinlock.h> struct clk_range { @@ -28,7 +29,7 @@ struct at91_pmc_caps { }; struct at91_pmc { - void __iomem *regbase; + struct regmap *regmap; int virq; spinlock_t lock; const struct at91_pmc_caps *caps; @@ -48,12 +49,16 @@ static inline void pmc_unlock(struct at91_pmc *pmc) static inline u32 pmc_read(struct at91_pmc *pmc, int offset) { - return readl(pmc->regbase + offset); + unsigned int ret = 0; + + regmap_read(pmc->regmap, offset, &ret); + + return ret; } static inline void pmc_write(struct at91_pmc *pmc, int offset, u32 value) { - writel(value, pmc->regbase + offset); + regmap_write(pmc->regmap, offset, value); } int of_at91_get_clk_range(struct device_node *np, const char *propname, |