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ARM: rockchip: support arch32 psci suspend

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Change-Id: I0341d1c019b8c00376af574cd9f51e87fafa8601
Signed-off-by: Jianhong Chen <chenjh@rock-chips.com>
This commit is contained in:
Jianhong Chen
2015-11-02 10:10:18 +08:00
parent 11d43ed737
commit 9ad64eb2bf
1 changed files with 28 additions and 2 deletions
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30
arch/arm/mach-rockchip/rockchip_pm.c
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@@ -7,7 +7,7 @@
#include <linux/delay.h>
#include <linux/moduleparam.h>
#include <linux/rockchip/common.h>
#include <asm/psci.h>
#include <asm/io.h>
#include "pm.h"
@@ -403,6 +403,18 @@ void rkpm_ddr_printhex(unsigned int hex)
}
}
#ifdef CONFIG_ARM_PSCI
static bool psci_suspend_available(void)
{
return (psci_ops.cpu_suspend != NULL);
}
#else
static inline bool psci_suspend_available(void)
{
return false;
}
#endif
#ifdef CONFIG_ARM
void rk_sram_suspend(void)
{
@@ -411,9 +423,17 @@ void rk_sram_suspend(void)
call_with_stack(p_suspend_pie_cb
, &rkpm_jdg_sram_ctrbits, rockchip_sram_stack);
}
static int rk_lpmode_enter(unsigned long arg)
{
#ifdef CONFIG_ARM_PSCI
const struct psci_power_state ps = {
.type = PSCI_POWER_STATE_TYPE_POWER_DOWN,
};
if (psci_suspend_available())
return psci_ops.cpu_suspend(ps, virt_to_phys(cpu_resume));
#endif
//RKPM_DDR_PFUN(slp_setting(rkpm_jdg_sram_ctrbits),slp_setting);
RKPM_DDR_FUN(slp_setting);
@@ -447,7 +467,13 @@ static int rkpm_enter(suspend_state_t state)
// printk(KERN_DEBUG"pm: ");
printk("%s:\n",__FUNCTION__);
//printk("pm test times=%d\n",++test_count);
#ifdef CONFIG_ARM_PSCI
if (psci_suspend_available()) {
cpu_suspend(0, rk_lpmode_enter);
return 0;
}
#endif
RKPM_DDR_FUN(prepare);
rkpm_ctrbits_prepare();