diff options
Diffstat (limited to 'arch/arm/mach-mx5/pm.c')
| -rw-r--r-- | arch/arm/mach-mx5/pm.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/mach-mx5/pm.c b/arch/arm/mach-mx5/pm.c index c257e049bd9f..a63d6e725e8f 100644 --- a/arch/arm/mach-mx5/pm.c +++ b/arch/arm/mach-mx5/pm.c @@ -26,6 +26,7 @@ #include <asm/mach/map.h> #include <mach/hardware.h> #include "crm_regs.h" +#include "mach/irqs.h" static struct cpu_wp *cpu_wp_tbl; static struct clk *cpu_clk; @@ -50,6 +51,14 @@ void (*suspend_in_iram)(void *sdclk_iomux_addr) = NULL; static int mx51_suspend_enter(suspend_state_t state) { void __iomem *sdclk_iomux_addr = IO_ADDRESS(IOMUXC_BASE_ADDR + 0x4b8); + u32 * wake_src; + + /* Check that we have a wake up source. We don't want to suspend if not.*/ + mxc_get_wake_irq(&wake_src); + if ( !wake_src[0] && !wake_src[1] && !wake_src[2] && !wake_src[3] ) { + printk(KERN_ERR "No sources enabled for wake-up! Sleep abort.\n"); + return -EINVAL; + } if (gpc_dvfs_clk == NULL) gpc_dvfs_clk = clk_get(NULL, "gpc_dvfs_clk"); |