From: Nishanth Menon <nm@xxxxxx>
This reverts commit b6be18f0bab68ed304ebbb2d787d1c36237eda62.
Revert the patch so that we remove any opportunity of SR disable/enable
and any device_scale transitions from conflicting with suspend/resume
path by moving the sr enable/disable activity to the very last
stage(in pmxx.C). The previous patch tried to optimize suspend resume
time, but since device_scale opportunities are from multiple drivers
(other than cpufreq), hence reverting back to original approach
Conflicts:
arch/arm/mach-omap2/smartreflex.c
Change-Id: I236b0e8259cfb371899dd0c93875739a21358e33
Signed-off-by: Nishanth Menon <nm@xxxxxx>
Signed-off-by: Jean Pihet <j-pihet@xxxxxx>
---
arch/arm/mach-omap2/smartreflex.c | 90 -------------------------------------
1 files changed, 0 insertions(+), 90 deletions(-)
diff --git a/arch/arm/mach-omap2/smartreflex.c b/arch/arm/mach-omap2/smartreflex.c
index 95fd228..7e755bb 100644
--- a/arch/arm/mach-omap2/smartreflex.c
+++ b/arch/arm/mach-omap2/smartreflex.c
@@ -24,7 +24,6 @@
#include <linux/debugfs.h>
#include <linux/delay.h>
#include <linux/slab.h>
-#include <linux/pm.h>
#include <linux/pm_runtime.h>
#include "common.h"
@@ -41,7 +40,6 @@ struct omap_sr {
int ip_type;
int nvalue_count;
bool autocomp_active;
- bool is_suspended;
u32 clk_length;
u32 err_weight;
u32 err_minlimit;
@@ -687,11 +685,6 @@ void omap_sr_enable(struct voltagedomain *voltdm)
if (!sr->autocomp_active)
return;
- if (sr->is_suspended) {
- dev_dbg(&sr->pdev->dev, "%s: in suspended state\n", __func__);
- return;
- }
-
if (!sr_class || !(sr_class->enable) || !(sr_class->configure)) {
dev_warn(&sr->pdev->dev, "%s: smartreflex class driver not"
"registered\n", __func__);
@@ -725,11 +718,6 @@ void omap_sr_disable(struct voltagedomain *voltdm)
if (!sr->autocomp_active)
return;
- if (sr->is_suspended) {
- dev_dbg(&sr->pdev->dev, "%s: in suspended state\n", __func__);
- return;
- }
-
if (!sr_class || !(sr_class->disable)) {
dev_warn(&sr->pdev->dev, "%s: smartreflex class driver not"
"registered\n", __func__);
@@ -763,11 +751,6 @@ void omap_sr_disable_reset_volt(struct voltagedomain *voltdm)
if (!sr->autocomp_active)
return;
- if (sr->is_suspended) {
- dev_dbg(&sr->pdev->dev, "%s: in suspended state\n", __func__);
- return;
- }
-
if (!sr_class || !(sr_class->disable)) {
dev_warn(&sr->pdev->dev, "%s: smartreflex class driver not"
"registered\n", __func__);
@@ -826,11 +809,6 @@ static int omap_sr_autocomp_store(void *data, u64 val)
return -EINVAL;
}
- if (sr_info->is_suspended) {
- pr_warning("%s: in suspended state\n", __func__);
- return -EBUSY;
- }
-
/* control enable/disable only if there is a delta in value */
if (sr_info->autocomp_active != val) {
if (!val)
@@ -1033,78 +1011,10 @@ static int __devexit omap_sr_remove(struct platform_device *pdev)
return 0;
}
-static int omap_sr_suspend(struct device *dev)
-{
- struct omap_sr_data *pdata;
- struct omap_sr *sr_info;
-
- pdata = dev_get_platdata(dev);
- if (!pdata) {
- dev_err(dev, "%s: platform data missing\n", __func__);
- return -EINVAL;
- }
-
- sr_info = _sr_lookup(pdata->voltdm);
- if (IS_ERR(sr_info)) {
- dev_warn(dev, "%s: omap_sr struct not found\n", __func__);
- return -EINVAL;
- }
-
- if (!sr_info->autocomp_active)
- return 0;
-
- if (sr_info->is_suspended)
- return 0;
-
- omap_sr_disable_reset_volt(pdata->voltdm);
- sr_info->is_suspended = true;
- /* Flag the same info to the other CPUs */
- smp_wmb();
-
- return 0;
-}
-
-static int omap_sr_resume(struct device *dev)
-{
- struct omap_sr_data *pdata;
- struct omap_sr *sr_info;
-
- pdata = dev_get_platdata(dev);
- if (!pdata) {
- dev_err(dev, "%s: platform data missing\n", __func__);
- return -EINVAL;
- }
-
- sr_info = _sr_lookup(pdata->voltdm);
- if (IS_ERR(sr_info)) {
- dev_warn(dev, "%s: omap_sr struct not found\n", __func__);
- return -EINVAL;
- }
-
- if (!sr_info->autocomp_active)
- return 0;
-
- if (!sr_info->is_suspended)
- return 0;
-
- sr_info->is_suspended = false;
- /* Flag the same info to the other CPUs */
- smp_wmb();
- omap_sr_enable(pdata->voltdm);
-
- return 0;
-}
-
-const static struct dev_pm_ops omap_sr_dev_pm_ops = {
- .suspend_noirq = omap_sr_suspend,
- .resume_noirq = omap_sr_resume,
-};
-
static struct platform_driver smartreflex_driver = {
.remove = omap_sr_remove,
.driver = {
.name = "smartreflex",
- .pm = &omap_sr_dev_pm_ops,
},
};
--
1.7.5.4
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