Re: [PATCH 05/21] Revert "OMAP3+: PM: SR: add suspend/resume handlers"

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Salut Jean,

On 1/25/2012 4:16 PM, Jean Pihet wrote:
From: Nishanth Menon<nm@xxxxxx>

This reverts commit b6be18f0bab68ed304ebbb2d787d1c36237eda62.

That weird, because you revert a patch you introduced just before:
[PATCH 03/21] OMAP3+: PM: SR: add suspend/resume handlers

Moreover this commit id is not relevant since it is probably only in Nishanth's GIT tree.

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

And this looks like gerrit leftover that should not be there.

I guess that path #3 and #5 should just be removed.

Regards,
Benoit


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,
  	},
  };


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