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| author | Yoshinori Sato <ysato@users.sourceforge.jp> | 2015-12-05 02:48:18 +0900 |
|---|---|---|
| committer | Daniel Lezcano <daniel.lezcano@linaro.org> | 2015-12-16 17:20:13 +0100 |
| commit | d33f250af4e67d449f2c748b861ba99d50955469 (patch) | |
| tree | e105795f67812451d115d7bfce0e76ceaea11f77 /drivers/clocksource/h8300_timer8.c | |
| parent | 6f2b611db23404426a2b21b343392dc1d9584f92 (diff) | |
| download | lwn-d33f250af4e67d449f2c748b861ba99d50955469.tar.gz lwn-d33f250af4e67d449f2c748b861ba99d50955469.zip | |
clocksource/drivers/h8300: Use ioread / iowrite
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Diffstat (limited to 'drivers/clocksource/h8300_timer8.c')
| -rw-r--r-- | drivers/clocksource/h8300_timer8.c | 28 |
1 files changed, 17 insertions, 11 deletions
diff --git a/drivers/clocksource/h8300_timer8.c b/drivers/clocksource/h8300_timer8.c index 9087dd27ec69..c151941e1956 100644 --- a/drivers/clocksource/h8300_timer8.c +++ b/drivers/clocksource/h8300_timer8.c @@ -24,10 +24,16 @@ #define TCORB 6 #define _8TCNT 8 +#define CMIEA 6 +#define CMFA 6 + #define FLAG_STARTED (1 << 3) #define SCALE 64 +#define bset(b, a) iowrite8(ioread8(a) | (1 << (b)), (a)) +#define bclr(b, a) iowrite8(ioread8(a) & ~(1 << (b)), (a)) + struct timer8_priv { struct clock_event_device ced; void __iomem *mapbase; @@ -40,12 +46,11 @@ static irqreturn_t timer8_interrupt(int irq, void *dev_id) struct timer8_priv *p = dev_id; if (clockevent_state_oneshot(&p->ced)) - writew(0x0000, p->mapbase + _8TCR); + iowrite16be(0x0000, p->mapbase + _8TCR); p->ced.event_handler(&p->ced); - writeb(readb(p->mapbase + _8TCSR) & ~0x40, - p->mapbase + _8TCSR); + bclr(CMFA, p->mapbase + _8TCSR); return IRQ_HANDLED; } @@ -54,17 +59,18 @@ static void timer8_set_next(struct timer8_priv *p, unsigned long delta) { if (delta >= 0x10000) pr_warn("delta out of range\n"); - writeb(readb(p->mapbase + _8TCR) & ~0x40, p->mapbase + _8TCR); - writew(0, p->mapbase + _8TCNT); - writew(delta, p->mapbase + TCORA); - writeb(readb(p->mapbase + _8TCR) | 0x40, p->mapbase + _8TCR); + bclr(CMIEA, p->mapbase + _8TCR); + iowrite16be(delta, p->mapbase + TCORA); + iowrite16be(0x0000, p->mapbase + _8TCNT); + bclr(CMFA, p->mapbase + _8TCSR); + bset(CMIEA, p->mapbase + _8TCR); } static int timer8_enable(struct timer8_priv *p) { - writew(0xffff, p->mapbase + TCORA); - writew(0x0000, p->mapbase + _8TCNT); - writew(0x0c02, p->mapbase + _8TCR); + iowrite16be(0xffff, p->mapbase + TCORA); + iowrite16be(0x0000, p->mapbase + _8TCNT); + iowrite16be(0x0c02, p->mapbase + _8TCR); return 0; } @@ -85,7 +91,7 @@ static int timer8_start(struct timer8_priv *p) static void timer8_stop(struct timer8_priv *p) { - writew(0x0000, p->mapbase + _8TCR); + iowrite16be(0x0000, p->mapbase + _8TCR); } static inline struct timer8_priv *ced_to_priv(struct clock_event_device *ced) |