diff options
Diffstat (limited to 'drivers/sh')
| -rw-r--r-- | drivers/sh/Makefile | 8 | ||||
| -rw-r--r-- | drivers/sh/intc/chip.c | 2 | ||||
| -rw-r--r-- | drivers/sh/intc/core.c | 2 | ||||
| -rw-r--r-- | drivers/sh/intc/dynamic.c | 1 | ||||
| -rw-r--r-- | drivers/sh/intc/virq.c | 1 | ||||
| -rw-r--r-- | drivers/sh/maple/maple.c | 1 | ||||
| -rw-r--r-- | drivers/sh/pm_runtime.c | 65 |
7 files changed, 79 insertions, 1 deletions
diff --git a/drivers/sh/Makefile b/drivers/sh/Makefile index 24e6cec0ae8d..67e272ab1623 100644 --- a/drivers/sh/Makefile +++ b/drivers/sh/Makefile @@ -7,3 +7,11 @@ obj-$(CONFIG_HAVE_CLK) += clk/ obj-$(CONFIG_MAPLE) += maple/ obj-$(CONFIG_SUPERHYWAY) += superhyway/ obj-$(CONFIG_GENERIC_GPIO) += pfc.o + +# +# For the moment we only use this framework for ARM-based SH/R-Mobile +# platforms and generic SH. SH-based SH-Mobile platforms are still using +# an older framework that is pending up-porting, at which point this +# special casing can go away. +# +obj-$(CONFIG_SUPERH)$(CONFIG_ARCH_SHMOBILE) += pm_runtime.o diff --git a/drivers/sh/intc/chip.c b/drivers/sh/intc/chip.c index e0ada3773786..7b246efa94ea 100644 --- a/drivers/sh/intc/chip.c +++ b/drivers/sh/intc/chip.c @@ -186,7 +186,7 @@ static unsigned char intc_irq_sense_table[IRQ_TYPE_SENSE_MASK + 1] = { !defined(CONFIG_CPU_SUBTYPE_SH7709) [IRQ_TYPE_LEVEL_HIGH] = VALID(3), #endif -#if defined(CONFIG_ARCH_SH7372) +#if defined(CONFIG_ARM) /* all recent SH-Mobile / R-Mobile ARM support this */ [IRQ_TYPE_EDGE_BOTH] = VALID(4), #endif }; diff --git a/drivers/sh/intc/core.c b/drivers/sh/intc/core.c index c6ca115c71df..8b7a141ff35e 100644 --- a/drivers/sh/intc/core.c +++ b/drivers/sh/intc/core.c @@ -22,6 +22,7 @@ #include <linux/irq.h> #include <linux/io.h> #include <linux/slab.h> +#include <linux/stat.h> #include <linux/interrupt.h> #include <linux/sh_intc.h> #include <linux/sysdev.h> @@ -29,6 +30,7 @@ #include <linux/list.h> #include <linux/spinlock.h> #include <linux/radix-tree.h> +#include <linux/export.h> #include "internals.h" LIST_HEAD(intc_list); diff --git a/drivers/sh/intc/dynamic.c b/drivers/sh/intc/dynamic.c index a3677c9dfe36..5fea1ee8799a 100644 --- a/drivers/sh/intc/dynamic.c +++ b/drivers/sh/intc/dynamic.c @@ -14,6 +14,7 @@ #include <linux/irq.h> #include <linux/bitmap.h> #include <linux/spinlock.h> +#include <linux/module.h> #include "internals.h" /* only for activate_irq() damage.. */ /* diff --git a/drivers/sh/intc/virq.c b/drivers/sh/intc/virq.c index 1e6e2d0353ea..c7ec49ffd9f6 100644 --- a/drivers/sh/intc/virq.c +++ b/drivers/sh/intc/virq.c @@ -14,6 +14,7 @@ #include <linux/list.h> #include <linux/radix-tree.h> #include <linux/spinlock.h> +#include <linux/export.h> #include "internals.h" static struct intc_map_entry intc_irq_xlate[NR_IRQS]; diff --git a/drivers/sh/maple/maple.c b/drivers/sh/maple/maple.c index 1e20604257af..bec81c2404f7 100644 --- a/drivers/sh/maple/maple.c +++ b/drivers/sh/maple/maple.c @@ -20,6 +20,7 @@ #include <linux/maple.h> #include <linux/dma-mapping.h> #include <linux/delay.h> +#include <linux/module.h> #include <asm/cacheflush.h> #include <asm/dma.h> #include <asm/io.h> diff --git a/drivers/sh/pm_runtime.c b/drivers/sh/pm_runtime.c new file mode 100644 index 000000000000..afe9282629b9 --- /dev/null +++ b/drivers/sh/pm_runtime.c @@ -0,0 +1,65 @@ +/* + * Runtime PM support code + * + * Copyright (C) 2009-2010 Magnus Damm + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ + +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/io.h> +#include <linux/pm_runtime.h> +#include <linux/pm_domain.h> +#include <linux/pm_clock.h> +#include <linux/platform_device.h> +#include <linux/clk.h> +#include <linux/sh_clk.h> +#include <linux/bitmap.h> +#include <linux/slab.h> + +#ifdef CONFIG_PM_RUNTIME + +static int default_platform_runtime_idle(struct device *dev) +{ + /* suspend synchronously to disable clocks immediately */ + return pm_runtime_suspend(dev); +} + +static struct dev_pm_domain default_pm_domain = { + .ops = { + .runtime_suspend = pm_clk_suspend, + .runtime_resume = pm_clk_resume, + .runtime_idle = default_platform_runtime_idle, + USE_PLATFORM_PM_SLEEP_OPS + }, +}; + +#define DEFAULT_PM_DOMAIN_PTR (&default_pm_domain) + +#else + +#define DEFAULT_PM_DOMAIN_PTR NULL + +#endif /* CONFIG_PM_RUNTIME */ + +static struct pm_clk_notifier_block platform_bus_notifier = { + .pm_domain = DEFAULT_PM_DOMAIN_PTR, + .con_ids = { NULL, }, +}; + +static int __init sh_pm_runtime_init(void) +{ + pm_clk_add_notifier(&platform_bus_type, &platform_bus_notifier); + return 0; +} +core_initcall(sh_pm_runtime_init); + +static int __init sh_pm_runtime_late_init(void) +{ + pm_genpd_poweroff_unused(); + return 0; +} +late_initcall(sh_pm_runtime_late_init); |