diff options
| -rw-r--r-- | drivers/clocksource/sh_cmt.c | 19 |
1 files changed, 7 insertions, 12 deletions
diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c index f975d24890fa..dc7c033ef587 100644 --- a/drivers/clocksource/sh_cmt.c +++ b/drivers/clocksource/sh_cmt.c | |||
| @@ -416,11 +416,15 @@ static cycle_t sh_cmt_clocksource_read(struct clocksource *cs) | |||
| 416 | 416 | ||
| 417 | static int sh_cmt_clocksource_enable(struct clocksource *cs) | 417 | static int sh_cmt_clocksource_enable(struct clocksource *cs) |
| 418 | { | 418 | { |
| 419 | int ret; | ||
| 419 | struct sh_cmt_priv *p = cs_to_sh_cmt(cs); | 420 | struct sh_cmt_priv *p = cs_to_sh_cmt(cs); |
| 420 | 421 | ||
| 421 | p->total_cycles = 0; | 422 | p->total_cycles = 0; |
| 422 | 423 | ||
| 423 | return sh_cmt_start(p, FLAG_CLOCKSOURCE); | 424 | ret = sh_cmt_start(p, FLAG_CLOCKSOURCE); |
| 425 | if (!ret) | ||
| 426 | __clocksource_updatefreq_hz(cs, p->rate); | ||
| 427 | return ret; | ||
| 424 | } | 428 | } |
| 425 | 429 | ||
| 426 | static void sh_cmt_clocksource_disable(struct clocksource *cs) | 430 | static void sh_cmt_clocksource_disable(struct clocksource *cs) |
| @@ -448,19 +452,10 @@ static int sh_cmt_register_clocksource(struct sh_cmt_priv *p, | |||
| 448 | cs->mask = CLOCKSOURCE_MASK(sizeof(unsigned long) * 8); | 452 | cs->mask = CLOCKSOURCE_MASK(sizeof(unsigned long) * 8); |
| 449 | cs->flags = CLOCK_SOURCE_IS_CONTINUOUS; | 453 | cs->flags = CLOCK_SOURCE_IS_CONTINUOUS; |
| 450 | 454 | ||
| 451 | /* clk_get_rate() needs an enabled clock */ | ||
| 452 | clk_enable(p->clk); | ||
| 453 | p->rate = clk_get_rate(p->clk) / ((p->width == 16) ? 512 : 8); | ||
| 454 | clk_disable(p->clk); | ||
| 455 | |||
| 456 | /* TODO: calculate good shift from rate and counter bit width */ | ||
| 457 | cs->shift = 0; | ||
| 458 | cs->mult = clocksource_hz2mult(p->rate, cs->shift); | ||
| 459 | |||
| 460 | dev_info(&p->pdev->dev, "used as clock source\n"); | 455 | dev_info(&p->pdev->dev, "used as clock source\n"); |
| 461 | 456 | ||
| 462 | clocksource_register(cs); | 457 | /* Register with dummy 1 Hz value, gets updated in ->enable() */ |
| 463 | 458 | clocksource_register_hz(cs, 1); | |
| 464 | return 0; | 459 | return 0; |
| 465 | } | 460 | } |
| 466 | 461 | ||
