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author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-06-05 02:42:09 +0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-06-05 02:42:09 +0400 |
commit | 999fd1ab344dabd9c985b638bf4c29495b8e4619 (patch) | |
tree | b4a238aafc79caa085e469ee28ab61301ca17f8f /drivers/clocksource/sh_tmu.c | |
parent | 9a9620db07b27700a4de9e86985735fffb78e2f8 (diff) | |
parent | ac422f9443191e050c16fe99baeb5c3d74934589 (diff) | |
download | linux-999fd1ab344dabd9c985b638bf4c29495b8e4619.tar.xz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (23 commits)
sh: Make intc messages consistent via pr_fmt.
sh: make sure static declaration on ms7724se
sh: make sure static declaration on mach-migor
sh: make sure static declaration on mach-ecovec24
sh: make sure static declaration on mach-ap325rxa
clocksource: sh_cmt: compute mult and shift before registration
clocksource: sh_tmu: compute mult and shift before registration
sh: PIO disabling for x3proto and urquell.
sh: mach-sdk7786: conditionally disable PIO support.
sh: support for platforms without PIO.
usb: r8a66597-hcd pio to mmio accessor conversion.
usb: gadget: r8a66597-udc pio to mmio accessor conversion.
usb: gadget: m66592-udc pio to mmio accessor conversion.
sh: add romImage MMCIF boot for sh7724 and Ecovec V2
sh: add boot code to MMCIF driver header
sh: prepare MMCIF driver header file
sh: allow romImage data between head.S and the zero page
sh: Add support MMCIF for ecovec
sh: remove duplicated #include
input: serio: disable i8042 for non-cayman sh platforms.
...
Diffstat (limited to 'drivers/clocksource/sh_tmu.c')
-rw-r--r-- | drivers/clocksource/sh_tmu.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/drivers/clocksource/sh_tmu.c b/drivers/clocksource/sh_tmu.c index 8e44e14ec4c2..de715901b82a 100644 --- a/drivers/clocksource/sh_tmu.c +++ b/drivers/clocksource/sh_tmu.c @@ -199,16 +199,8 @@ static cycle_t sh_tmu_clocksource_read(struct clocksource *cs) static int sh_tmu_clocksource_enable(struct clocksource *cs) { struct sh_tmu_priv *p = cs_to_sh_tmu(cs); - int ret; - - ret = sh_tmu_enable(p); - if (ret) - return ret; - /* TODO: calculate good shift from rate and counter bit width */ - cs->shift = 10; - cs->mult = clocksource_hz2mult(p->rate, cs->shift); - return 0; + return sh_tmu_enable(p); } static void sh_tmu_clocksource_disable(struct clocksource *cs) @@ -228,6 +220,16 @@ static int sh_tmu_register_clocksource(struct sh_tmu_priv *p, cs->disable = sh_tmu_clocksource_disable; cs->mask = CLOCKSOURCE_MASK(32); cs->flags = CLOCK_SOURCE_IS_CONTINUOUS; + + /* clk_get_rate() needs an enabled clock */ + clk_enable(p->clk); + /* channel will be configured at parent clock / 4 */ + p->rate = clk_get_rate(p->clk) / 4; + clk_disable(p->clk); + /* TODO: calculate good shift from rate and counter bit width */ + cs->shift = 10; + cs->mult = clocksource_hz2mult(p->rate, cs->shift); + dev_info(&p->pdev->dev, "used as clock source\n"); clocksource_register(cs); return 0; |