diff options
author | Arnd Bergmann <arnd@arndb.de> | 2012-10-05 00:57:00 +0400 |
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committer | Arnd Bergmann <arnd@arndb.de> | 2012-10-05 00:57:51 +0400 |
commit | c37d6154c0b9163c27e53cc1d0be3867b4abd760 (patch) | |
tree | 7a24522c56d1cb284dff1d3c225bbdaba0901bb5 /drivers/clocksource/sh_mtu2.c | |
parent | e7a570ff7dff9af6e54ff5e580a61ec7652137a0 (diff) | |
parent | 8a1ab3155c2ac7fbe5f2038d6e26efeb607a1498 (diff) | |
download | linux-c37d6154c0b9163c27e53cc1d0be3867b4abd760.tar.xz |
Merge branch 'disintegrate-asm-generic' of git://git.infradead.org/users/dhowells/linux-headers into asm-generic
Patches from David Howells <dhowells@redhat.com>:
This is to complete part of the UAPI disintegration for which the
preparatory patches were pulled recently.
Note that there are some fixup patches which are at the base of the
branch aimed at you, plus all arches get the asm-generic branch merged in too.
* 'disintegrate-asm-generic' of git://git.infradead.org/users/dhowells/linux-headers:
UAPI: (Scripted) Disintegrate include/asm-generic
UAPI: Fix conditional header installation handling (notably kvm_para.h on m68k)
c6x: remove c6x signal.h
UAPI: Split compound conditionals containing __KERNEL__ in Arm64
UAPI: Fix the guards on various asm/unistd.h files
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/clocksource/sh_mtu2.c')
-rw-r--r-- | drivers/clocksource/sh_mtu2.c | 41 |
1 files changed, 37 insertions, 4 deletions
diff --git a/drivers/clocksource/sh_mtu2.c b/drivers/clocksource/sh_mtu2.c index d9b76ca64a61..c5eea858054a 100644 --- a/drivers/clocksource/sh_mtu2.c +++ b/drivers/clocksource/sh_mtu2.c @@ -32,6 +32,7 @@ #include <linux/slab.h> #include <linux/module.h> #include <linux/pm_domain.h> +#include <linux/pm_runtime.h> struct sh_mtu2_priv { void __iomem *mapbase; @@ -123,6 +124,9 @@ static int sh_mtu2_enable(struct sh_mtu2_priv *p) { int ret; + pm_runtime_get_sync(&p->pdev->dev); + dev_pm_syscore_device(&p->pdev->dev, true); + /* enable clock */ ret = clk_enable(p->clk); if (ret) { @@ -157,6 +161,9 @@ static void sh_mtu2_disable(struct sh_mtu2_priv *p) /* stop clock */ clk_disable(p->clk); + + dev_pm_syscore_device(&p->pdev->dev, false); + pm_runtime_put(&p->pdev->dev); } static irqreturn_t sh_mtu2_interrupt(int irq, void *dev_id) @@ -208,6 +215,16 @@ static void sh_mtu2_clock_event_mode(enum clock_event_mode mode, } } +static void sh_mtu2_clock_event_suspend(struct clock_event_device *ced) +{ + pm_genpd_syscore_poweroff(&ced_to_sh_mtu2(ced)->pdev->dev); +} + +static void sh_mtu2_clock_event_resume(struct clock_event_device *ced) +{ + pm_genpd_syscore_poweron(&ced_to_sh_mtu2(ced)->pdev->dev); +} + static void sh_mtu2_register_clockevent(struct sh_mtu2_priv *p, char *name, unsigned long rating) { @@ -221,6 +238,8 @@ static void sh_mtu2_register_clockevent(struct sh_mtu2_priv *p, ced->rating = rating; ced->cpumask = cpumask_of(0); ced->set_mode = sh_mtu2_clock_event_mode; + ced->suspend = sh_mtu2_clock_event_suspend; + ced->resume = sh_mtu2_clock_event_resume; dev_info(&p->pdev->dev, "used for clock events\n"); clockevents_register_device(ced); @@ -305,14 +324,17 @@ static int sh_mtu2_setup(struct sh_mtu2_priv *p, struct platform_device *pdev) static int __devinit sh_mtu2_probe(struct platform_device *pdev) { struct sh_mtu2_priv *p = platform_get_drvdata(pdev); + struct sh_timer_config *cfg = pdev->dev.platform_data; int ret; - if (!is_early_platform_device(pdev)) - pm_genpd_dev_always_on(&pdev->dev, true); + if (!is_early_platform_device(pdev)) { + pm_runtime_set_active(&pdev->dev); + pm_runtime_enable(&pdev->dev); + } if (p) { dev_info(&pdev->dev, "kept as earlytimer\n"); - return 0; + goto out; } p = kmalloc(sizeof(*p), GFP_KERNEL); @@ -325,8 +347,19 @@ static int __devinit sh_mtu2_probe(struct platform_device *pdev) if (ret) { kfree(p); platform_set_drvdata(pdev, NULL); + pm_runtime_idle(&pdev->dev); + return ret; } - return ret; + if (is_early_platform_device(pdev)) + return 0; + + out: + if (cfg->clockevent_rating) + pm_runtime_irq_safe(&pdev->dev); + else + pm_runtime_idle(&pdev->dev); + + return 0; } static int __devexit sh_mtu2_remove(struct platform_device *pdev) |