renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-19 10:44:14 +08:00
Code

davinci: cpuidle - remove the ops

Browse Source 
With one function handling the idle state and a single variable,
the usage of the davinci_ops is overkill.

This patch removes these ops and simplify the code.

Furthermore, the 'driver_data' field is no longer used, we have
1 of the 3 remaining user of this field removed.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Daniel Lezcano 2013-02-04 12:01:43 +00:00 committed by Len Brown
parent 8d60143a23
commit 36ce8d4f5f
1 changed files with 2 additions and 31 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

33
arch/arm/mach-davinci/cpuidle.c
View File

@ -25,12 +25,6 @@
#define DAVINCI_CPUIDLE_MAX_STATES 2
struct davinci_ops {
void (*enter) (void);
void (*exit) (void);
u32 flags;
};
static DEFINE_PER_CPU(struct cpuidle_device, davinci_cpuidle_device);
static void __iomem *ddr2_reg_base;
static bool ddr2_pdown;
@ -54,39 +48,17 @@ static void davinci_save_ddr_power(int enter, bool pdown)
__raw_writel(val, ddr2_reg_base + DDR2_SDRCR_OFFSET);
}
static void davinci_c2state_enter(void)
{
davinci_save_ddr_power(1, ddr2_pdown);
}
static void davinci_c2state_exit(void)
{
davinci_save_ddr_power(0, ddr2_pdown);
}
static struct davinci_ops davinci_states[DAVINCI_CPUIDLE_MAX_STATES] = {
[1] = {
.enter = davinci_c2state_enter,
.exit = davinci_c2state_exit,
},
};
/* Actual code that puts the SoC in different idle states */
static int davinci_enter_idle(struct cpuidle_device *dev,
struct cpuidle_driver *drv,
int index)
{
struct cpuidle_state_usage *state_usage = &dev->states_usage[index];
struct davinci_ops *ops = cpuidle_get_statedata(state_usage);
if (ops && ops->enter)
ops->enter();
davinci_save_ddr_power(1, ddr2_pdown);
index = cpuidle_wrap_enter(dev, drv, index,
arm_cpuidle_simple_enter);
if (ops && ops->exit)
ops->exit();
davinci_save_ddr_power(0, ddr2_pdown);
return index;
}
@ -123,7 +95,6 @@ static int __init davinci_cpuidle_probe(struct platform_device *pdev)
ddr2_reg_base = pdata->ddr2_ctlr_base;
ddr2_pdown = pdata->ddr2_pdown;
cpuidle_set_statedata(&device->states_usage[1], &davinci_states[1]);
device->state_count = DAVINCI_CPUIDLE_MAX_STATES;