As omap5 supports deeper idle states compared to dra7, let's
separate dra7 from omap5 in preparation for adding more support
for omap5.
Cc: Dave Gerlach <d-gerlach@xxxxxx>
Cc: Nishanth Menon <nm@xxxxxx>
Cc: Santosh Shilimkar <santosh.shilimkar@xxxxxxxxxx>
Cc: Tero Kristo <t-kristo@xxxxxx>
Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx>
---
arch/arm/mach-omap2/cpuidle44xx.c | 42 +++++++++++++++++++++++++++++++++++++++
1 file changed, 42 insertions(+)
diff --git a/arch/arm/mach-omap2/cpuidle44xx.c b/arch/arm/mach-omap2/cpuidle44xx.c
--- a/arch/arm/mach-omap2/cpuidle44xx.c
+++ b/arch/arm/mach-omap2/cpuidle44xx.c
@@ -65,6 +65,19 @@ static struct idle_statedata omap5_idle_data[] = {
},
};
+static struct idle_statedata dra7_idle_data[] = {
+ {
+ .cpu_state = PWRDM_POWER_ON,
+ .mpu_state = PWRDM_POWER_ON,
+ .mpu_logic_state = PWRDM_POWER_ON,
+ },
+ {
+ .cpu_state = PWRDM_POWER_RET,
+ .mpu_state = PWRDM_POWER_RET,
+ .mpu_logic_state = PWRDM_POWER_RET,
+ },
+};
+
static struct powerdomain *mpu_pd, *cpu_pd[MAX_CPUS];
static struct clockdomain *cpu_clkdm[MAX_CPUS];
@@ -288,6 +301,32 @@ static struct cpuidle_driver omap5_idle_driver = {
.safe_state_index = 0,
};
+static struct cpuidle_driver dra7_idle_driver = {
+ .name = "dra7_idle",
+ .owner = THIS_MODULE,
+ .states = {
+ {
+ /* C1 - CPU0 ON + CPU1 ON + MPU ON */
+ .exit_latency = 2 + 2,
+ .target_residency = 5,
+ .enter = omap_enter_idle_simple,
+ .name = "C1",
+ .desc = "CPUx WFI, MPUSS ON"
+ },
+ {
+ /* C2 - CPU0 RET + CPU1 RET + MPU CSWR */
+ .exit_latency = 48 + 60,
+ .target_residency = 100,
+ .flags = CPUIDLE_FLAG_TIMER_STOP,
+ .enter = omap_enter_idle_smp,
+ .name = "C2",
+ .desc = "CPUx CSWR, MPUSS CSWR",
+ },
+ },
+ .state_count = ARRAY_SIZE(dra7_idle_data),
+ .safe_state_index = 0,
+};
+
/* Public functions */
/**
@@ -303,6 +342,9 @@ int __init omap4_idle_init(void)
if (soc_is_omap54xx()) {
state_ptr = &omap5_idle_data[0];
idle_driver = &omap5_idle_driver;
+ } else if (soc_is_dra7xx()) {
+ state_ptr = &dra7_idle_data[0];
+ idle_driver = &dra7_idle_driver;
} else {
state_ptr = &omap4_idle_data[0];
idle_driver = &omap4_idle_driver;
--
2.14.1
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