diff options
Diffstat (limited to 'arch/arm/mach-keystone/keystone.c')
| -rw-r--r-- | arch/arm/mach-keystone/keystone.c | 38 |
1 files changed, 36 insertions, 2 deletions
diff --git a/arch/arm/mach-keystone/keystone.c b/arch/arm/mach-keystone/keystone.c index e8a06bd69bf2..f63671a3024c 100644 --- a/arch/arm/mach-keystone/keystone.c +++ b/arch/arm/mach-keystone/keystone.c @@ -6,10 +6,14 @@ * Cyril Chemparathy <cyril@ti.com> * Santosh Shilimkar <santosh.shillimkar@ti.com> */ + #include <linux/io.h> #include <linux/dma-map-ops.h> #include <linux/init.h> +#include <linux/pm_runtime.h> +#include <linux/pm_clock.h> #include <linux/memblock.h> +#include <linux/of.h> #include <linux/platform_device.h> #include <asm/setup.h> @@ -18,8 +22,6 @@ #include <asm/mach/time.h> #include <asm/page.h> -#include "keystone.h" - #define KEYSTONE_LOW_PHYS_START 0x80000000ULL #define KEYSTONE_LOW_PHYS_SIZE 0x80000000ULL /* 2G */ #define KEYSTONE_LOW_PHYS_END (KEYSTONE_LOW_PHYS_START + \ @@ -30,6 +32,38 @@ #define KEYSTONE_HIGH_PHYS_END (KEYSTONE_HIGH_PHYS_START + \ KEYSTONE_HIGH_PHYS_SIZE - 1) +static struct dev_pm_domain keystone_pm_domain = { + .ops = { + USE_PM_CLK_RUNTIME_OPS + USE_PLATFORM_PM_SLEEP_OPS + }, +}; + +static struct pm_clk_notifier_block platform_domain_notifier = { + .pm_domain = &keystone_pm_domain, + .con_ids = { NULL }, +}; + +static const struct of_device_id of_keystone_table[] = { + {.compatible = "ti,k2hk"}, + {.compatible = "ti,k2e"}, + {.compatible = "ti,k2l"}, + { /* end of list */ }, +}; + +static int __init keystone_pm_runtime_init(void) +{ + struct device_node *np; + + np = of_find_matching_node(NULL, of_keystone_table); + if (!np) + return 0; + + pm_clk_add_notifier(&platform_bus_type, &platform_domain_notifier); + + return 0; +} + #ifdef CONFIG_ARM_LPAE static int keystone_platform_notifier(struct notifier_block *nb, unsigned long event, void *data) |