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-rw-r--r--Documentation/pinctrl.txt37
-rw-r--r--drivers/pinctrl/core.c10
-rw-r--r--drivers/pinctrl/pinconf.c3
-rw-r--r--drivers/pinctrl/pinctrl-pxa3xx.c24
-rw-r--r--drivers/pinctrl/pinctrl-sirf.c20
-rw-r--r--drivers/pinctrl/pinctrl-tegra.c40
-rw-r--r--drivers/pinctrl/pinctrl-u300.c20
-rw-r--r--drivers/pinctrl/pinmux.c11
-rw-r--r--include/linux/pinctrl/pinctrl.h6
-rw-r--r--include/linux/pinctrl/pinmux.h7
10 files changed, 63 insertions, 115 deletions
diff --git a/Documentation/pinctrl.txt b/Documentation/pinctrl.txt
index 2d88b3c..eb46b1c 100644
--- a/Documentation/pinctrl.txt
+++ b/Documentation/pinctrl.txt
@@ -152,11 +152,9 @@ static const struct foo_group foo_groups[] = {
};
-static int foo_list_groups(struct pinctrl_dev *pctldev, unsigned selector)
+static int foo_get_groups_count(struct pinctrl_dev *pctldev)
{
- if (selector >= ARRAY_SIZE(foo_groups))
- return -EINVAL;
- return 0;
+ return ARRAY_SIZE(foo_groups);
}
static const char *foo_get_group_name(struct pinctrl_dev *pctldev,
@@ -175,7 +173,7 @@ static int foo_get_group_pins(struct pinctrl_dev *pctldev, unsigned selector,
}
static struct pinctrl_ops foo_pctrl_ops = {
- .list_groups = foo_list_groups,
+ .get_groups_count = foo_get_groups_count,
.get_group_name = foo_get_group_name,
.get_group_pins = foo_get_group_pins,
};
@@ -186,13 +184,12 @@ static struct pinctrl_desc foo_desc = {
.pctlops = &foo_pctrl_ops,
};
-The pin control subsystem will call the .list_groups() function repeatedly
-beginning on 0 until it returns non-zero to determine legal selectors, then
-it will call the other functions to retrieve the name and pins of the group.
-Maintaining the data structure of the groups is up to the driver, this is
-just a simple example - in practice you may need more entries in your group
-structure, for example specific register ranges associated with each group
-and so on.
+The pin control subsystem will call the .get_groups_count() function to
+determine total number of legal selectors, then it will call the other functions
+to retrieve the name and pins of the group. Maintaining the data structure of
+the groups is up to the driver, this is just a simple example - in practice you
+may need more entries in your group structure, for example specific register
+ranges associated with each group and so on.
Pin configuration
@@ -606,11 +603,9 @@ static const struct foo_group foo_groups[] = {
};
-static int foo_list_groups(struct pinctrl_dev *pctldev, unsigned selector)
+static int foo_get_groups_count(struct pinctrl_dev *pctldev)
{
- if (selector >= ARRAY_SIZE(foo_groups))
- return -EINVAL;
- return 0;
+ return ARRAY_SIZE(foo_groups);
}
static const char *foo_get_group_name(struct pinctrl_dev *pctldev,
@@ -629,7 +624,7 @@ static int foo_get_group_pins(struct pinctrl_dev *pctldev, unsigned selector,
}
static struct pinctrl_ops foo_pctrl_ops = {
- .list_groups = foo_list_groups,
+ .get_groups_count = foo_get_groups_count,
.get_group_name = foo_get_group_name,
.get_group_pins = foo_get_group_pins,
};
@@ -663,11 +658,9 @@ static const struct foo_pmx_func foo_functions[] = {
},
};
-int foo_list_funcs(struct pinctrl_dev *pctldev, unsigned selector)
+int foo_get_functions_count(struct pinctrl_dev *pctldev)
{
- if (selector >= ARRAY_SIZE(foo_functions))
- return -EINVAL;
- return 0;
+ return ARRAY_SIZE(foo_functions);
}
const char *foo_get_fname(struct pinctrl_dev *pctldev, unsigned selector)
@@ -703,7 +696,7 @@ void foo_disable(struct pinctrl_dev *pctldev, unsigned selector,
}
struct pinmux_ops foo_pmxops = {
- .list_functions = foo_list_funcs,
+ .get_functions_count = foo_get_functions_count,
.get_function_name = foo_get_fname,
.get_function_groups = foo_get_groups,
.enable = foo_enable,
diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
index 832f71d..7ff8690 100644
--- a/drivers/pinctrl/core.c
+++ b/drivers/pinctrl/core.c
@@ -319,9 +319,10 @@ int pinctrl_get_group_selector(struct pinctrl_dev *pctldev,
const char *pin_group)
{
const struct pinctrl_ops *pctlops = pctldev->desc->pctlops;
+ unsigned ngroups = pctlops->get_groups_count(pctldev);
unsigned group_selector = 0;
- while (pctlops->list_groups(pctldev, group_selector) >= 0) {
+ while (group_selector < ngroups) {
const char *gname = pctlops->get_group_name(pctldev,
group_selector);
if (!strcmp(gname, pin_group)) {
@@ -941,12 +942,13 @@ static int pinctrl_groups_show(struct seq_file *s, void *what)
{
struct pinctrl_dev *pctldev = s->private;
const struct pinctrl_ops *ops = pctldev->desc->pctlops;
- unsigned selector = 0;
+ unsigned ngroups, selector = 0;
+ ngroups = ops->get_groups_count(pctldev);
mutex_lock(&pinctrl_mutex);
seq_puts(s, "registered pin groups:\n");
- while (ops->list_groups(pctldev, selector) >= 0) {
+ while (selector < ngroups) {
const unsigned *pins;
unsigned num_pins;
const char *gname = ops->get_group_name(pctldev, selector);
@@ -1261,7 +1263,7 @@ static int pinctrl_check_ops(struct pinctrl_dev *pctldev)
const struct pinctrl_ops *ops = pctldev->desc->pctlops;
if (!ops ||
- !ops->list_groups ||
+ !ops->get_groups_count ||
!ops->get_group_name ||
!ops->get_group_pins)
return -EINVAL;
diff --git a/drivers/pinctrl/pinconf.c b/drivers/pinctrl/pinconf.c
index 7321e86..eb3a14f 100644
--- a/drivers/pinctrl/pinconf.c
+++ b/drivers/pinctrl/pinconf.c
@@ -495,6 +495,7 @@ static int pinconf_groups_show(struct seq_file *s, void *what)
struct pinctrl_dev *pctldev = s->private;
const struct pinctrl_ops *pctlops = pctldev->desc->pctlops;
const struct pinconf_ops *ops = pctldev->desc->confops;
+ unsigned ngroups = pctlops->get_groups_count(pctldev);
unsigned selector = 0;
if (!ops || !ops->pin_config_group_get)
@@ -505,7 +506,7 @@ static int pinconf_groups_show(struct seq_file *s, void *what)
mutex_lock(&pinctrl_mutex);
- while (pctlops->list_groups(pctldev, selector) >= 0) {
+ while (selector < ngroups) {
const char *gname = pctlops->get_group_name(pctldev, selector);
seq_printf(s, "%u (%s):", selector, gname);
diff --git a/drivers/pinctrl/pinctrl-pxa3xx.c b/drivers/pinctrl/pinctrl-pxa3xx.c
index 079dce0..7644e42 100644
--- a/drivers/pinctrl/pinctrl-pxa3xx.c
+++ b/drivers/pinctrl/pinctrl-pxa3xx.c
@@ -25,20 +25,18 @@ static struct pinctrl_gpio_range pxa3xx_pinctrl_gpio_range = {
.pin_base = 0,
};
-static int pxa3xx_list_groups(struct pinctrl_dev *pctrldev, unsigned selector)
+static int pxa3xx_get_groups_count(struct pinctrl_dev *pctrldev)
{
struct pxa3xx_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev);
- if (selector >= info->num_grps)
- return -EINVAL;
- return 0;
+
+ return info->num_grps;
}
static const char *pxa3xx_get_group_name(struct pinctrl_dev *pctrldev,
unsigned selector)
{
struct pxa3xx_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev);
- if (selector >= info->num_grps)
- return NULL;
+
return info->grps[selector].name;
}
@@ -48,25 +46,23 @@ static int pxa3xx_get_group_pins(struct pinctrl_dev *pctrldev,
unsigned *num_pins)
{
struct pxa3xx_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev);
- if (selector >= info->num_grps)
- return -EINVAL;
+
*pins = info->grps[selector].pins;
*num_pins = info->grps[selector].npins;
return 0;
}
static struct pinctrl_ops pxa3xx_pctrl_ops = {
- .list_groups = pxa3xx_list_groups,
+ .get_groups_count = pxa3xx_get_groups_count,
.get_group_name = pxa3xx_get_group_name,
.get_group_pins = pxa3xx_get_group_pins,
};
-static int pxa3xx_pmx_list_func(struct pinctrl_dev *pctrldev, unsigned func)
+static int pxa3xx_pmx_get_funcs_count(struct pinctrl_dev *pctrldev)
{
struct pxa3xx_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev);
- if (func >= info->num_funcs)
- return -EINVAL;
- return 0;
+
+ return info->num_funcs;
}
static const char *pxa3xx_pmx_get_func_name(struct pinctrl_dev *pctrldev,
@@ -170,7 +166,7 @@ static int pxa3xx_pmx_request_gpio(struct pinctrl_dev *pctrldev,
}
static struct pinmux_ops pxa3xx_pmx_ops = {
- .list_functions = pxa3xx_pmx_list_func,
+ .get_functions_count = pxa3xx_pmx_get_funcs_count,
.get_function_name = pxa3xx_pmx_get_func_name,
.get_function_groups = pxa3xx_pmx_get_groups,
.enable = pxa3xx_pmx_enable,
diff --git a/drivers/pinctrl/pinctrl-sirf.c b/drivers/pinctrl/pinctrl-sirf.c
index 6b3534c..ba15b1a 100644
--- a/drivers/pinctrl/pinctrl-sirf.c
+++ b/drivers/pinctrl/pinctrl-sirf.c
@@ -853,18 +853,14 @@ static const struct sirfsoc_pin_group sirfsoc_pin_groups[] = {
SIRFSOC_PIN_GROUP("gpsgrp", gps_pins),
};
-static int sirfsoc_list_groups(struct pinctrl_dev *pctldev, unsigned selector)
+static int sirfsoc_get_groups_count(struct pinctrl_dev *pctldev)
{
- if (selector >= ARRAY_SIZE(sirfsoc_pin_groups))
- return -EINVAL;
- return 0;
+ return ARRAY_SIZE(sirfsoc_pin_groups);
}
static const char *sirfsoc_get_group_name(struct pinctrl_dev *pctldev,
unsigned selector)
{
- if (selector >= ARRAY_SIZE(sirfsoc_pin_groups))
- return NULL;
return sirfsoc_pin_groups[selector].name;
}
@@ -872,8 +868,6 @@ static int sirfsoc_get_group_pins(struct pinctrl_dev *pctldev, unsigned selector
const unsigned **pins,
unsigned *num_pins)
{
- if (selector >= ARRAY_SIZE(sirfsoc_pin_groups))
- return -EINVAL;
*pins = sirfsoc_pin_groups[selector].pins;
*num_pins = sirfsoc_pin_groups[selector].num_pins;
return 0;
@@ -886,7 +880,7 @@ static void sirfsoc_pin_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s
}
static struct pinctrl_ops sirfsoc_pctrl_ops = {
- .list_groups = sirfsoc_list_groups,
+ .get_groups_count = sirfsoc_get_groups_count,
.get_group_name = sirfsoc_get_group_name,
.get_group_pins = sirfsoc_get_group_pins,
.pin_dbg_show = sirfsoc_pin_dbg_show,
@@ -1033,11 +1027,9 @@ static void sirfsoc_pinmux_disable(struct pinctrl_dev *pmxdev, unsigned selector
sirfsoc_pinmux_endisable(spmx, selector, false);
}
-static int sirfsoc_pinmux_list_funcs(struct pinctrl_dev *pmxdev, unsigned selector)
+static int sirfsoc_pinmux_get_funcs_count(struct pinctrl_dev *pmxdev)
{
- if (selector >= ARRAY_SIZE(sirfsoc_pmx_functions))
- return -EINVAL;
- return 0;
+ return ARRAY_SIZE(sirfsoc_pmx_functions);
}
static const char *sirfsoc_pinmux_get_func_name(struct pinctrl_dev *pctldev,
@@ -1074,9 +1066,9 @@ static int sirfsoc_pinmux_request_gpio(struct pinctrl_dev *pmxdev,
}
static struct pinmux_ops sirfsoc_pinmux_ops = {
- .list_functions = sirfsoc_pinmux_list_funcs,
.enable = sirfsoc_pinmux_enable,
.disable = sirfsoc_pinmux_disable,
+ .get_functions_count = sirfsoc_pinmux_get_funcs_count,
.get_function_name = sirfsoc_pinmux_get_func_name,
.get_function_groups = sirfsoc_pinmux_get_groups,
.gpio_request_enable = sirfsoc_pinmux_request_gpio,
diff --git a/drivers/pinctrl/pinctrl-tegra.c b/drivers/pinctrl/pinctrl-tegra.c
index 9b32968..41311a2 100644
--- a/drivers/pinctrl/pinctrl-tegra.c
+++ b/drivers/pinctrl/pinctrl-tegra.c
@@ -53,15 +53,11 @@ static inline void pmx_writel(struct tegra_pmx *pmx, u32 val, u32 bank, u32 reg)
writel(val, pmx->regs[bank] + reg);
}
-static int tegra_pinctrl_list_groups(struct pinctrl_dev *pctldev,
- unsigned group)
+static int tegra_pinctrl_get_groups_count(struct pinctrl_dev *pctldev)
{
struct tegra_pmx *pmx = pinctrl_dev_get_drvdata(pctldev);
- if (group >= pmx->soc->ngroups)
- return -EINVAL;
-
- return 0;
+ return pmx->soc->ngroups;
}
static const char *tegra_pinctrl_get_group_name(struct pinctrl_dev *pctldev,
@@ -69,9 +65,6 @@ static const char *tegra_pinctrl_get_group_name(struct pinctrl_dev *pctldev,
{
struct tegra_pmx *pmx = pinctrl_dev_get_drvdata(pctldev);
- if (group >= pmx->soc->ngroups)
- return NULL;
-
return pmx->soc->groups[group].name;
}
@@ -82,9 +75,6 @@ static int tegra_pinctrl_get_group_pins(struct pinctrl_dev *pctldev,
{
struct tegra_pmx *pmx = pinctrl_dev_get_drvdata(pctldev);
- if (group >= pmx->soc->ngroups)
- return -EINVAL;
-
*pins = pmx->soc->groups[group].pins;
*num_pins = pmx->soc->groups[group].npins;
@@ -99,21 +89,17 @@ static void tegra_pinctrl_pin_dbg_show(struct pinctrl_dev *pctldev,
}
static struct pinctrl_ops tegra_pinctrl_ops = {
- .list_groups = tegra_pinctrl_list_groups,
+ .get_groups_count = tegra_pinctrl_get_groups_count,
.get_group_name = tegra_pinctrl_get_group_name,
.get_group_pins = tegra_pinctrl_get_group_pins,
.pin_dbg_show = tegra_pinctrl_pin_dbg_show,
};
-static int tegra_pinctrl_list_funcs(struct pinctrl_dev *pctldev,
- unsigned function)
+static int tegra_pinctrl_get_funcs_count(struct pinctrl_dev *pctldev)
{
struct tegra_pmx *pmx = pinctrl_dev_get_drvdata(pctldev);
- if (function >= pmx->soc->nfunctions)
- return -EINVAL;
-
- return 0;
+ return pmx->soc->nfunctions;
}
static const char *tegra_pinctrl_get_func_name(struct pinctrl_dev *pctldev,
@@ -121,9 +107,6 @@ static const char *tegra_pinctrl_get_func_name(struct pinctrl_dev *pctldev,
{
struct tegra_pmx *pmx = pinctrl_dev_get_drvdata(pctldev);
- if (function >= pmx->soc->nfunctions)
- return NULL;
-
return pmx->soc->functions[function].name;
}
@@ -134,9 +117,6 @@ static int tegra_pinctrl_get_func_groups(struct pinctrl_dev *pctldev,
{
struct tegra_pmx *pmx = pinctrl_dev_get_drvdata(pctldev);
- if (function >= pmx->soc->nfunctions)
- return -EINVAL;
-
*groups = pmx->soc->functions[function].groups;
*num_groups = pmx->soc->functions[function].ngroups;
@@ -151,8 +131,6 @@ static int tegra_pinctrl_enable(struct pinctrl_dev *pctldev, unsigned function,
int i;
u32 val;
- if (group >= pmx->soc->ngroups)
- return -EINVAL;
g = &pmx->soc->groups[group];
if (g->mux_reg < 0)
@@ -180,8 +158,6 @@ static void tegra_pinctrl_disable(struct pinctrl_dev *pctldev,
const struct tegra_pingroup *g;
u32 val;
- if (group >= pmx->soc->ngroups)
- return;
g = &pmx->soc->groups[group];
if (g->mux_reg < 0)
@@ -194,7 +170,7 @@ static void tegra_pinctrl_disable(struct pinctrl_dev *pctldev,
}
static struct pinmux_ops tegra_pinmux_ops = {
- .list_functions = tegra_pinctrl_list_funcs,
+ .get_functions_count = tegra_pinctrl_get_funcs_count,
.get_function_name = tegra_pinctrl_get_func_name,
.get_function_groups = tegra_pinctrl_get_func_groups,
.enable = tegra_pinctrl_enable,
@@ -324,8 +300,6 @@ static int tegra_pinconf_group_get(struct pinctrl_dev *pctldev,
s16 reg;
u32 val, mask;
- if (group >= pmx->soc->ngroups)
- return -EINVAL;
g = &pmx->soc->groups[group];
ret = tegra_pinconf_reg(pmx, g, param, &bank, &reg, &bit, &width);
@@ -353,8 +327,6 @@ static int tegra_pinconf_group_set(struct pinctrl_dev *pctldev,
s16 reg;
u32 val, mask;
- if (group >= pmx->soc->ngroups)
- return -EINVAL;
g = &pmx->soc->groups[group];
ret = tegra_pinconf_reg(pmx, g, param, &bank, &reg, &bit, &width);
diff --git a/drivers/pinctrl/pinctrl-u300.c b/drivers/pinctrl/pinctrl-u300.c
index 26eb8cc..05d0299 100644
--- a/drivers/pinctrl/pinctrl-u300.c
+++ b/drivers/pinctrl/pinctrl-u300.c
@@ -836,18 +836,14 @@ static const struct u300_pin_group u300_pin_groups[] = {
},
};
-static int u300_list_groups(struct pinctrl_dev *pctldev, unsigned selector)
+static int u300_get_groups_count(struct pinctrl_dev *pctldev)
{
- if (selector >= ARRAY_SIZE(u300_pin_groups))
- return -EINVAL;
- return 0;
+ return ARRAY_SIZE(u300_pin_groups);
}
static const char *u300_get_group_name(struct pinctrl_dev *pctldev,
unsigned selector)
{
- if (selector >= ARRAY_SIZE(u300_pin_groups))
- return NULL;
return u300_pin_groups[selector].name;
}
@@ -855,8 +851,6 @@ static int u300_get_group_pins(struct pinctrl_dev *pctldev, unsigned selector,
const unsigned **pins,
unsigned *num_pins)
{
- if (selector >= ARRAY_SIZE(u300_pin_groups))
- return -EINVAL;
*pins = u300_pin_groups[selector].pins;
*num_pins = u300_pin_groups[selector].num_pins;
return 0;
@@ -869,7 +863,7 @@ static void u300_pin_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s,
}
static struct pinctrl_ops u300_pctrl_ops = {
- .list_groups = u300_list_groups,
+ .get_groups_count = u300_get_groups_count,
.get_group_name = u300_get_group_name,
.get_group_pins = u300_get_group_pins,
.pin_dbg_show = u300_pin_dbg_show,
@@ -991,11 +985,9 @@ static void u300_pmx_disable(struct pinctrl_dev *pctldev, unsigned selector,
u300_pmx_endisable(upmx, selector, false);
}
-static int u300_pmx_list_funcs(struct pinctrl_dev *pctldev, unsigned selector)
+static int u300_pmx_get_funcs_count(struct pinctrl_dev *pctldev)
{
- if (selector >= ARRAY_SIZE(u300_pmx_functions))
- return -EINVAL;
- return 0;
+ return ARRAY_SIZE(u300_pmx_functions);
}
static const char *u300_pmx_get_func_name(struct pinctrl_dev *pctldev,
@@ -1014,7 +1006,7 @@ static int u300_pmx_get_groups(struct pinctrl_dev *pctldev, unsigned selector,
}
static struct pinmux_ops u300_pmx_ops = {
- .list_functions = u300_pmx_list_funcs,
+ .get_functions_count = u300_pmx_get_funcs_count,
.get_function_name = u300_pmx_get_func_name,
.get_function_groups = u300_pmx_get_groups,
.enable = u300_pmx_enable,
diff --git a/drivers/pinctrl/pinmux.c b/drivers/pinctrl/pinmux.c
index 4e62783..375b214 100644
--- a/drivers/pinctrl/pinmux.c
+++ b/drivers/pinctrl/pinmux.c
@@ -33,10 +33,11 @@
int pinmux_check_ops(struct pinctrl_dev *pctldev)
{
const struct pinmux_ops *ops = pctldev->desc->pmxops;
+ unsigned nfuncs = ops->get_functions_count(pctldev);
unsigned selector = 0;
/* Check that we implement required operations */
- if (!ops->list_functions ||
+ if (!ops->get_functions_count ||
!ops->get_function_name ||
!ops->get_function_groups ||
!ops->enable ||
@@ -44,7 +45,7 @@ int pinmux_check_ops(struct pinctrl_dev *pctldev)
return -EINVAL;
/* Check that all functions registered have names */
- while (ops->list_functions(pctldev, selector) >= 0) {
+ while (selector < nfuncs) {
const char *fname = ops->get_function_name(pctldev,
selector);
if (!fname) {
@@ -287,10 +288,11 @@ static int pinmux_func_name_to_selector(struct pinctrl_dev *pctldev,
const char *function)
{
const struct pinmux_ops *ops = pctldev->desc->pmxops;
+ unsigned nfuncs = ops->get_functions_count(pctldev);
unsigned selector = 0;
/* See if this pctldev has this function */
- while (ops->list_functions(pctldev, selector) >= 0) {
+ while (selector < nfuncs) {
const char *fname = ops->get_function_name(pctldev,
selector);
@@ -477,11 +479,12 @@ static int pinmux_functions_show(struct seq_file *s, void *what)
{
struct pinctrl_dev *pctldev = s->private;
const struct pinmux_ops *pmxops = pctldev->desc->pmxops;
+ unsigned nfuncs = pmxops->get_functions_count(pctldev);
unsigned func_selector = 0;
mutex_lock(&pinctrl_mutex);
- while (pmxops->list_functions(pctldev, func_selector) >= 0) {
+ while (func_selector < nfuncs) {
const char *func = pmxops->get_function_name(pctldev,
func_selector);
const char * const *groups;
diff --git a/include/linux/pinctrl/pinctrl.h b/include/linux/pinctrl/pinctrl.h
index aa92cde..c22d040 100644
--- a/include/linux/pinctrl/pinctrl.h
+++ b/include/linux/pinctrl/pinctrl.h
@@ -66,9 +66,7 @@ struct pinctrl_gpio_range {
/**
* struct pinctrl_ops - global pin control operations, to be implemented by
* pin controller drivers.
- * @list_groups: list the number of selectable named groups available
- * in this pinmux driver, the core will begin on 0 and call this
- * repeatedly as long as it returns >= 0 to enumerate the groups
+ * @get_groups_count: Returns the count of total number of groups registered.
* @get_group_name: return the group name of the pin group
* @get_group_pins: return an array of pins corresponding to a certain
* group selector @pins, and the size of the array in @num_pins
@@ -76,7 +74,7 @@ struct pinctrl_gpio_range {
* info for a certain pin in debugfs
*/
struct pinctrl_ops {
- int (*list_groups) (struct pinctrl_dev *pctldev, unsigned selector);
+ int (*get_groups_count) (struct pinctrl_dev *pctldev);
const char *(*get_group_name) (struct pinctrl_dev *pctldev,
unsigned selector);
int (*get_group_pins) (struct pinctrl_dev *pctldev,
diff --git a/include/linux/pinctrl/pinmux.h b/include/linux/pinctrl/pinmux.h
index 47e9237..dd7bef6 100644
--- a/include/linux/pinctrl/pinmux.h
+++ b/include/linux/pinctrl/pinmux.h
@@ -29,9 +29,8 @@ struct pinctrl_dev;
* is allowed to answer "no" by returning a negative error code
* @free: the reverse function of the request() callback, frees a pin after
* being requested
- * @list_functions: list the number of selectable named functions available
- * in this pinmux driver, the core will begin on 0 and call this
- * repeatedly as long as it returns >= 0 to enumerate mux settings
+ * @get_functions_count: returns number of selectable named functions available
+ * in this pinmux driver
* @get_function_name: return the function name of the muxing selector,
* called by the core to figure out which mux setting it shall map a
* certain device to
@@ -62,7 +61,7 @@ struct pinctrl_dev;
struct pinmux_ops {
int (*request) (struct pinctrl_dev *pctldev, unsigned offset);
int (*free) (struct pinctrl_dev *pctldev, unsigned offset);
- int (*list_functions) (struct pinctrl_dev *pctldev, unsigned selector);
+ int (*get_functions_count) (struct pinctrl_dev *pctldev);
const char *(*get_function_name) (struct pinctrl_dev *pctldev,
unsigned selector);
int (*get_function_groups) (struct pinctrl_dev *pctldev,
generated by cgit v1.1 at 2024-12-27 15:57:05 +0000