[PATCH v2] arch: arm: mach-omap2: voltage: Remove some unused functions
Rickard Strandqvist
rickard_strandqvist at spectrumdigital.se
Fri Jan 2 16:37:43 PST 2015
Removes some functions that are not used anywhere:
omap_change_voltscale_method() voltdm_add_pwrdm()
voltdm_for_each() voltdm_for_each_pwrdm()
And remove define VOLTSCALE_VPFORCEUPDATE and VOLTSCALE_VCBYPASS
This was partially found by using a static code analysis program called cppcheck.
Signed-off-by: Rickard Strandqvist <rickard_strandqvist at spectrumdigital.se>
---
arch/arm/mach-omap2/powerdomain.c | 1 -
arch/arm/mach-omap2/voltage.c | 110 -------------------------------------
arch/arm/mach-omap2/voltage.h | 13 -----
3 files changed, 124 deletions(-)
diff --git a/arch/arm/mach-omap2/powerdomain.c b/arch/arm/mach-omap2/powerdomain.c
index 7fb033e..20fae59 100644
--- a/arch/arm/mach-omap2/powerdomain.c
+++ b/arch/arm/mach-omap2/powerdomain.c
@@ -115,7 +115,6 @@ static int _pwrdm_register(struct powerdomain *pwrdm)
}
pwrdm->voltdm.ptr = voltdm;
INIT_LIST_HEAD(&pwrdm->voltdm_node);
- voltdm_add_pwrdm(voltdm, pwrdm);
skip_voltdm:
spin_lock_init(&pwrdm->_lock);
diff --git a/arch/arm/mach-omap2/voltage.c b/arch/arm/mach-omap2/voltage.c
index 3783b86..cba8cad 100644
--- a/arch/arm/mach-omap2/voltage.c
+++ b/arch/arm/mach-omap2/voltage.c
@@ -224,37 +224,6 @@ int omap_voltage_register_pmic(struct voltagedomain *voltdm,
}
/**
- * omap_change_voltscale_method() - API to change the voltage scaling method.
- * @voltdm: pointer to the VDD whose voltage scaling method
- * has to be changed.
- * @voltscale_method: the method to be used for voltage scaling.
- *
- * This API can be used by the board files to change the method of voltage
- * scaling between vpforceupdate and vcbypass. The parameter values are
- * defined in voltage.h
- */
-void omap_change_voltscale_method(struct voltagedomain *voltdm,
- int voltscale_method)
-{
- if (!voltdm || IS_ERR(voltdm)) {
- pr_warn("%s: VDD specified does not exist!\n", __func__);
- return;
- }
-
- switch (voltscale_method) {
- case VOLTSCALE_VPFORCEUPDATE:
- voltdm->scale = omap_vp_forceupdate_scale;
- return;
- case VOLTSCALE_VCBYPASS:
- voltdm->scale = omap_vc_bypass_scale;
- return;
- default:
- pr_warn("%s: Trying to change the method of voltage scaling to an unsupported one!\n",
- __func__);
- }
-}
-
-/**
* omap_voltage_late_init() - Init the various voltage parameters
*
* This API is to be called in the later stages of the
@@ -316,90 +285,11 @@ static struct voltagedomain *_voltdm_lookup(const char *name)
return voltdm;
}
-/**
- * voltdm_add_pwrdm - add a powerdomain to a voltagedomain
- * @voltdm: struct voltagedomain * to add the powerdomain to
- * @pwrdm: struct powerdomain * to associate with a voltagedomain
- *
- * Associate the powerdomain @pwrdm with a voltagedomain @voltdm. This
- * enables the use of voltdm_for_each_pwrdm(). Returns -EINVAL if
- * presented with invalid pointers; -ENOMEM if memory could not be allocated;
- * or 0 upon success.
- */
-int voltdm_add_pwrdm(struct voltagedomain *voltdm, struct powerdomain *pwrdm)
-{
- if (!voltdm || !pwrdm)
- return -EINVAL;
-
- pr_debug("voltagedomain: %s: associating powerdomain %s\n",
- voltdm->name, pwrdm->name);
-
- list_add(&pwrdm->voltdm_node, &voltdm->pwrdm_list);
-
- return 0;
-}
-
-/**
- * voltdm_for_each_pwrdm - call function for each pwrdm in a voltdm
- * @voltdm: struct voltagedomain * to iterate over
- * @fn: callback function *
- *
- * Call the supplied function @fn for each powerdomain in the
- * voltagedomain @voltdm. Returns -EINVAL if presented with invalid
- * pointers; or passes along the last return value of the callback
- * function, which should be 0 for success or anything else to
- * indicate failure.
- */
-int voltdm_for_each_pwrdm(struct voltagedomain *voltdm,
- int (*fn)(struct voltagedomain *voltdm,
- struct powerdomain *pwrdm))
-{
- struct powerdomain *pwrdm;
- int ret = 0;
-
- if (!fn)
- return -EINVAL;
-
- list_for_each_entry(pwrdm, &voltdm->pwrdm_list, voltdm_node)
- ret = (*fn)(voltdm, pwrdm);
-
- return ret;
-}
-
-/**
- * voltdm_for_each - call function on each registered voltagedomain
- * @fn: callback function *
- *
- * Call the supplied function @fn for each registered voltagedomain.
- * The callback function @fn can return anything but 0 to bail out
- * early from the iterator. Returns the last return value of the
- * callback function, which should be 0 for success or anything else
- * to indicate failure; or -EINVAL if the function pointer is null.
- */
-int voltdm_for_each(int (*fn)(struct voltagedomain *voltdm, void *user),
- void *user)
-{
- struct voltagedomain *temp_voltdm;
- int ret = 0;
-
- if (!fn)
- return -EINVAL;
-
- list_for_each_entry(temp_voltdm, &voltdm_list, node) {
- ret = (*fn)(temp_voltdm, user);
- if (ret)
- break;
- }
-
- return ret;
-}
-
static int _voltdm_register(struct voltagedomain *voltdm)
{
if (!voltdm || !voltdm->name)
return -EINVAL;
- INIT_LIST_HEAD(&voltdm->pwrdm_list);
list_add(&voltdm->node, &voltdm_list);
pr_debug("voltagedomain: registered %s\n", voltdm->name);
diff --git a/arch/arm/mach-omap2/voltage.h b/arch/arm/mach-omap2/voltage.h
index f7f2879..e645503 100644
--- a/arch/arm/mach-omap2/voltage.h
+++ b/arch/arm/mach-omap2/voltage.h
@@ -23,10 +23,6 @@
struct powerdomain;
-/* XXX document */
-#define VOLTSCALE_VPFORCEUPDATE 1
-#define VOLTSCALE_VCBYPASS 2
-
/*
* OMAP3 GENERIC setup times. Revisit to see if these needs to be
* passed from board or PMIC file
@@ -55,7 +51,6 @@ struct omap_vfsm_instance {
* @name: Name of the voltage domain which can be used as a unique identifier.
* @scalable: Whether or not this voltage domain is scalable
* @node: list_head linking all voltage domains
- * @pwrdm_list: list_head linking all powerdomains in this voltagedomain
* @vc: pointer to VC channel associated with this voltagedomain
* @vp: pointer to VP associated with this voltagedomain
* @read: read a VC/VP register
@@ -71,7 +66,6 @@ struct voltagedomain {
char *name;
bool scalable;
struct list_head node;
- struct list_head pwrdm_list;
struct omap_vc_channel *vc;
const struct omap_vfsm_instance *vfsm;
struct omap_vp_instance *vp;
@@ -163,8 +157,6 @@ struct omap_volt_data *omap_voltage_get_voltdata(struct voltagedomain *voltdm,
unsigned long volt);
int omap_voltage_register_pmic(struct voltagedomain *voltdm,
struct omap_voltdm_pmic *pmic);
-void omap_change_voltscale_method(struct voltagedomain *voltdm,
- int voltscale_method);
int omap_voltage_late_init(void);
extern void omap2xxx_voltagedomains_init(void);
@@ -175,11 +167,6 @@ extern void omap54xx_voltagedomains_init(void);
struct voltagedomain *voltdm_lookup(const char *name);
void voltdm_init(struct voltagedomain **voltdm_list);
int voltdm_add_pwrdm(struct voltagedomain *voltdm, struct powerdomain *pwrdm);
-int voltdm_for_each(int (*fn)(struct voltagedomain *voltdm, void *user),
- void *user);
-int voltdm_for_each_pwrdm(struct voltagedomain *voltdm,
- int (*fn)(struct voltagedomain *voltdm,
- struct powerdomain *pwrdm));
int voltdm_scale(struct voltagedomain *voltdm, unsigned long target_volt);
void voltdm_reset(struct voltagedomain *voltdm);
unsigned long voltdm_get_voltage(struct voltagedomain *voltdm);
--
1.7.10.4
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