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| author | Rafael J. Wysocki <rjw@sisk.pl> | 2011-04-22 22:03:11 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2011-04-24 19:16:09 +0200 |
| commit | 2eaa03b5bebd1e80014f780d7bf27c3e66daefd6 (patch) | |
| tree | 9366c07d166eaede876cd7233cc30056f198a93f /arch/arm/mach-pxa/smemc.c | |
| parent | ARM / SA1100: Use struct syscore_ops for "core" power management (diff) | |
| download | linux-2eaa03b5bebd1e80014f780d7bf27c3e66daefd6.tar.xz linux-2eaa03b5bebd1e80014f780d7bf27c3e66daefd6.zip | |
ARM / PXA: Use struct syscore_ops for "core" power management
Replace sysdev classes and struct sys_device objects used for "core"
power management by the PXA platform code with struct syscore_ops
objects that are simpler.
This reduces the code size and the kernel memory footprint. It also
is necessary for removing sysdevs entirely from the kernel in the
future.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'arch/arm/mach-pxa/smemc.c')
| -rw-r--r-- | arch/arm/mach-pxa/smemc.c | 29 |
1 files changed, 7 insertions, 22 deletions
diff --git a/arch/arm/mach-pxa/smemc.c b/arch/arm/mach-pxa/smemc.c index 232b7316ec08..79923058d10f 100644 --- a/arch/arm/mach-pxa/smemc.c +++ b/arch/arm/mach-pxa/smemc.c @@ -6,7 +6,7 @@ #include <linux/kernel.h> #include <linux/init.h> #include <linux/io.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <mach/hardware.h> #include <mach/smemc.h> @@ -16,7 +16,7 @@ static unsigned long msc[2]; static unsigned long sxcnfg, memclkcfg; static unsigned long csadrcfg[4]; -static int pxa3xx_smemc_suspend(struct sys_device *dev, pm_message_t state) +static int pxa3xx_smemc_suspend(void) { msc[0] = __raw_readl(MSC0); msc[1] = __raw_readl(MSC1); @@ -30,7 +30,7 @@ static int pxa3xx_smemc_suspend(struct sys_device *dev, pm_message_t state) return 0; } -static int pxa3xx_smemc_resume(struct sys_device *dev) +static void pxa3xx_smemc_resume(void) { __raw_writel(msc[0], MSC0); __raw_writel(msc[1], MSC1); @@ -40,34 +40,19 @@ static int pxa3xx_smemc_resume(struct sys_device *dev) __raw_writel(csadrcfg[1], CSADRCFG1); __raw_writel(csadrcfg[2], CSADRCFG2); __raw_writel(csadrcfg[3], CSADRCFG3); - - return 0; } -static struct sysdev_class smemc_sysclass = { - .name = "smemc", +static struct syscore_ops smemc_syscore_ops = { .suspend = pxa3xx_smemc_suspend, .resume = pxa3xx_smemc_resume, }; -static struct sys_device smemc_sysdev = { - .id = 0, - .cls = &smemc_sysclass, -}; - static int __init smemc_init(void) { - int ret = 0; + if (cpu_is_pxa3xx()) + register_syscore_ops(&smemc_syscore_ops); - if (cpu_is_pxa3xx()) { - ret = sysdev_class_register(&smemc_sysclass); - if (ret) - return ret; - - ret = sysdev_register(&smemc_sysdev); - } - - return ret; + return 0; } subsys_initcall(smemc_init); #endif |