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| author |   Santosh Shilimkar <santosh.shilimkar@ti.com> | 2010-06-16 22:19:48 +0530 |
|---|---|---|
| committer |   Kevin Hilman <khilman@ti.com> | 2011-12-08 11:29:00 -0800 |
| commit | b5b4f2881f619460fdb165111bac10a3dd8eebee (patch) | |
| tree | 2f41f00e91f11ef77ff47dd0f65fc31b67aeb9c7 /arch/arm/mach-omap2/omap-hotplug.c | |
| parent | ARM: OMAP4: Remove __INIT from omap_secondary_startup() to re-use it for hotplug. (diff) | |
| download | linux-dev-b5b4f2881f619460fdb165111bac10a3dd8eebee.tar.xz linux-dev-b5b4f2881f619460fdb165111bac10a3dd8eebee.zip | |
ARM: OMAP4: PM: Program CPU1 to hit OFF when off-lined
Program non-boot CPUs to hit lowest supported power state
when it is off-lined using cpu hotplug framework.
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Jean Pihet <j-pihet@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Tested-by: Vishwanath BS <vishwanath.bs@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Diffstat (limited to 'arch/arm/mach-omap2/omap-hotplug.c')
| -rw-r--r-- | arch/arm/mach-omap2/omap-hotplug.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/arch/arm/mach-omap2/omap-hotplug.c b/arch/arm/mach-omap2/omap-hotplug.c index e5a1c3f40a86..adbe4d8c7caf 100644 --- a/arch/arm/mach-omap2/omap-hotplug.c +++ b/arch/arm/mach-omap2/omap-hotplug.c @@ -22,6 +22,8 @@ #include "common.h" +#include "powerdomain.h" + int platform_cpu_kill(unsigned int cpu) { return 1; @@ -33,6 +35,8 @@ int platform_cpu_kill(unsigned int cpu) */ void platform_cpu_die(unsigned int cpu) { + unsigned int this_cpu; + flush_cache_all(); dsb(); @@ -40,15 +44,15 @@ void platform_cpu_die(unsigned int cpu) * we're ready for shutdown now, so do it */ if (omap_modify_auxcoreboot0(0x0, 0x200) != 0x0) - printk(KERN_CRIT "Secure clear status failed\n"); + pr_err("Secure clear status failed\n"); for (;;) { /* - * Execute WFI + * Enter into low power state */ - do_wfi(); - - if (omap_read_auxcoreboot0() == cpu) { + omap4_hotplug_cpu(cpu, PWRDM_POWER_OFF); + this_cpu = smp_processor_id(); + if (omap_read_auxcoreboot0() == this_cpu) { /* * OK, proper wakeup, we're done */ |