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Subject[PATCH 3/9] ARM: OMAP3+: SmartReflex: class drivers should use struct omap_sr *
Date
From: Jean Pihet <j-pihet@ti.com>

Convert SmartReflex "class" functions to take a struct omap_sr *, rather than
a struct voltagedomain *. SmartReflex code should be driver code and not
tightly coupled to OMAP subarchitecture-specific structures.

Based on Paul's original code for the SmartReflex driver conversion.

Signed-off-by: Jean Pihet <j-pihet@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Thara Gopinath <thara@ti.com>
Cc: Nishanth Menon <nm@ti.com>
Cc: Kevin Hilman <khilman@ti.com>
---
arch/arm/mach-omap2/smartreflex-class3.c | 24 +++++++++---------
arch/arm/mach-omap2/smartreflex.c | 37 +++++------------------------
arch/arm/mach-omap2/smartreflex.h | 9 ++++---
include/linux/power/smartreflex.h | 23 ++++++++++++++++++
4 files changed, 47 insertions(+), 46 deletions(-)
diff --git a/arch/arm/mach-omap2/smartreflex-class3.c b/arch/arm/mach-omap2/smartreflex-class3.c
index e12c51e..54ba048 100644
--- a/arch/arm/mach-omap2/smartreflex-class3.c
+++ b/arch/arm/mach-omap2/smartreflex-class3.c
@@ -14,34 +14,34 @@
#include "smartreflex.h"
#include "voltage.h"

-static int sr_class3_enable(struct voltagedomain *voltdm)
+static int sr_class3_enable(struct omap_sr *sr)
{
- unsigned long volt = voltdm_get_voltage(voltdm);
+ unsigned long volt = voltdm_get_voltage(sr->voltdm);

if (!volt) {
pr_warning("%s: Curr voltage unknown. Cannot enable sr_%s\n",
- __func__, voltdm->name);
+ __func__, sr->voltdm->name);
return -ENODATA;
}

- omap_vp_enable(voltdm);
- return sr_enable(voltdm, volt);
+ omap_vp_enable(sr->voltdm);
+ return sr_enable(sr->voltdm, volt);
}

-static int sr_class3_disable(struct voltagedomain *voltdm, int is_volt_reset)
+static int sr_class3_disable(struct omap_sr *sr, int is_volt_reset)
{
- sr_disable_errgen(voltdm);
- omap_vp_disable(voltdm);
- sr_disable(voltdm);
+ sr_disable_errgen(sr->voltdm);
+ omap_vp_disable(sr->voltdm);
+ sr_disable(sr->voltdm);
if (is_volt_reset)
- voltdm_reset(voltdm);
+ voltdm_reset(sr->voltdm);

return 0;
}

-static int sr_class3_configure(struct voltagedomain *voltdm)
+static int sr_class3_configure(struct omap_sr *sr)
{
- return sr_configure_errgen(voltdm);
+ return sr_configure_errgen(sr->voltdm);
}

/* SR class3 structure */
diff --git a/arch/arm/mach-omap2/smartreflex.c b/arch/arm/mach-omap2/smartreflex.c
index 33e2825..dbb6a0c 100644
--- a/arch/arm/mach-omap2/smartreflex.c
+++ b/arch/arm/mach-omap2/smartreflex.c
@@ -35,29 +35,6 @@
#define NVALUE_NAME_LEN 40
#define SR_DISABLE_TIMEOUT 200

-struct omap_sr {
- struct list_head node;
- struct platform_device *pdev;
- struct omap_sr_nvalue_table *nvalue_table;
- struct voltagedomain *voltdm;
- struct dentry *dbg_dir;
- unsigned int irq;
- int srid;
- int ip_type;
- int nvalue_count;
- bool autocomp_active;
- u32 clk_length;
- u32 err_weight;
- u32 err_minlimit;
- u32 err_maxlimit;
- u32 accum_data;
- u32 senn_avgweight;
- u32 senp_avgweight;
- u32 senp_mod;
- u32 senn_mod;
- void __iomem *base;
-};
-
/* sr_list contains all the instances of smartreflex module */
static LIST_HEAD(sr_list);

@@ -148,7 +125,7 @@ static irqreturn_t sr_interrupt(int irq, void *data)
}

if (sr_class->notify)
- sr_class->notify(sr_info->voltdm, status);
+ sr_class->notify(sr_info, status);

return IRQ_HANDLED;
}
@@ -226,7 +203,7 @@ static void sr_start_vddautocomp(struct omap_sr *sr)
return;
}

- if (!sr_class->enable(sr->voltdm))
+ if (!sr_class->enable(sr))
sr->autocomp_active = true;
}

@@ -240,7 +217,7 @@ static void sr_stop_vddautocomp(struct omap_sr *sr)
}

if (sr->autocomp_active) {
- sr_class->disable(sr->voltdm, 1);
+ sr_class->disable(sr, 1);
sr->autocomp_active = false;
}
}
@@ -655,7 +632,7 @@ int sr_enable(struct voltagedomain *voltdm, unsigned long volt)
return 0;

/* Configure SR */
- ret = sr_class->configure(voltdm);
+ ret = sr_class->configure(sr);
if (ret)
return ret;

@@ -773,7 +750,7 @@ void omap_sr_enable(struct voltagedomain *voltdm)
return;
}

- sr_class->enable(voltdm);
+ sr_class->enable(sr);
}

/**
@@ -806,7 +783,7 @@ void omap_sr_disable(struct voltagedomain *voltdm)
return;
}

- sr_class->disable(voltdm, 0);
+ sr_class->disable(sr, 0);
}

/**
@@ -839,7 +816,7 @@ void omap_sr_disable_reset_volt(struct voltagedomain *voltdm)
return;
}

- sr_class->disable(voltdm, 1);
+ sr_class->disable(sr, 1);
}

/**
diff --git a/arch/arm/mach-omap2/smartreflex.h b/arch/arm/mach-omap2/smartreflex.h
index 8835422..6f9b677 100644
--- a/arch/arm/mach-omap2/smartreflex.h
+++ b/arch/arm/mach-omap2/smartreflex.h
@@ -21,6 +21,7 @@
#define __ASM_ARM_OMAP_SMARTREFLEX_H

#include <linux/platform_device.h>
+#include <linux/power/smartreflex.h>

#include <plat/voltage.h>

@@ -178,10 +179,10 @@ struct omap_sr_pmic_data {
* based decisions.
*/
struct omap_sr_class_data {
- int (*enable)(struct voltagedomain *voltdm);
- int (*disable)(struct voltagedomain *voltdm, int is_volt_reset);
- int (*configure)(struct voltagedomain *voltdm);
- int (*notify)(struct voltagedomain *voltdm, u32 status);
+ int (*enable)(struct omap_sr *sr);
+ int (*disable)(struct omap_sr *sr, int is_volt_reset);
+ int (*configure)(struct omap_sr *sr);
+ int (*notify)(struct omap_sr *sr, u32 status);
u8 notify_flags;
u8 class_type;
};
diff --git a/include/linux/power/smartreflex.h b/include/linux/power/smartreflex.h
index 4a15640..cf292ac 100644
--- a/include/linux/power/smartreflex.h
+++ b/include/linux/power/smartreflex.h
@@ -21,6 +21,29 @@

#include <plat/voltage.h>

+struct omap_sr {
+ struct list_head node;
+ struct platform_device *pdev;
+ struct omap_sr_nvalue_table *nvalue_table;
+ struct voltagedomain *voltdm;
+ struct dentry *dbg_dir;
+ unsigned int irq;
+ int srid;
+ int ip_type;
+ int nvalue_count;
+ bool autocomp_active;
+ u32 clk_length;
+ u32 err_weight;
+ u32 err_minlimit;
+ u32 err_maxlimit;
+ u32 accum_data;
+ u32 senn_avgweight;
+ u32 senp_avgweight;
+ u32 senp_mod;
+ u32 senn_mod;
+ void __iomem *base;
+};
+
/**
* struct omap_sr_nvalue_table - Smartreflex n-target value info
*
--
1.7.5.4


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