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-rw-r--r--Documentation/pinctrl.txt26
-rw-r--r--drivers/pinctrl/core.c42
-rw-r--r--drivers/pinctrl/core.h2
-rw-r--r--drivers/pinctrl/pinconf.c12
-rw-r--r--drivers/pinctrl/pinmux.c46
-rw-r--r--include/linux/pinctrl/machine.h25
6 files changed, 54 insertions, 99 deletions
diff --git a/Documentation/pinctrl.txt b/Documentation/pinctrl.txt
index 6d23fa84ee4..f0806436829 100644
--- a/Documentation/pinctrl.txt
+++ b/Documentation/pinctrl.txt
@@ -783,17 +783,17 @@ spi on the second function mapping:
static const struct pinmux_map __initdata pmx_mapping[] = {
{
- .ctrl_dev_name = "pinctrl.0",
+ .ctrl_dev_name = "pinctrl-foo",
.function = "spi0",
.dev_name = "foo-spi.0",
},
{
- .ctrl_dev_name = "pinctrl.0",
+ .ctrl_dev_name = "pinctrl-foo",
.function = "i2c0",
.dev_name = "foo-i2c.0",
},
{
- .ctrl_dev_name = "pinctrl.0",
+ .ctrl_dev_name = "pinctrl-foo",
.function = "mmc0",
.dev_name = "foo-mmc.0",
},
@@ -815,7 +815,7 @@ You register this pinmux mapping to the pinmux subsystem by simply:
ret = pinmux_register_mappings(pmx_mapping, ARRAY_SIZE(pmx_mapping));
Since the above construct is pretty common there is a helper macro to make
-it even more compact which assumes you want to use pinctrl.0 and position
+it even more compact which assumes you want to use pinctrl-foo and position
0 for mapping, for example:
static struct pinmux_map __initdata pmx_mapping[] = {
@@ -832,14 +832,14 @@ As it is possible to map a function to different groups of pins an optional
...
{
.name = "spi0-pos-A",
- .ctrl_dev_name = "pinctrl.0",
+ .ctrl_dev_name = "pinctrl-foo",
.function = "spi0",
.group = "spi0_0_grp",
.dev_name = "foo-spi.0",
},
{
.name = "spi0-pos-B",
- .ctrl_dev_name = "pinctrl.0",
+ .ctrl_dev_name = "pinctrl-foo",
.function = "spi0",
.group = "spi0_1_grp",
.dev_name = "foo-spi.0",
@@ -858,42 +858,42 @@ case), we define a mapping like this:
...
{
.name "2bit"
- .ctrl_dev_name = "pinctrl.0",
+ .ctrl_dev_name = "pinctrl-foo",
.function = "mmc0",
.group = "mmc0_1_grp",
.dev_name = "foo-mmc.0",
},
{
.name "4bit"
- .ctrl_dev_name = "pinctrl.0",
+ .ctrl_dev_name = "pinctrl-foo",
.function = "mmc0",
.group = "mmc0_1_grp",
.dev_name = "foo-mmc.0",
},
{
.name "4bit"
- .ctrl_dev_name = "pinctrl.0",
+ .ctrl_dev_name = "pinctrl-foo",
.function = "mmc0",
.group = "mmc0_2_grp",
.dev_name = "foo-mmc.0",
},
{
.name "8bit"
- .ctrl_dev_name = "pinctrl.0",
+ .ctrl_dev_name = "pinctrl-foo",
.function = "mmc0",
.group = "mmc0_1_grp",
.dev_name = "foo-mmc.0",
},
{
.name "8bit"
- .ctrl_dev_name = "pinctrl.0",
+ .ctrl_dev_name = "pinctrl-foo",
.function = "mmc0",
.group = "mmc0_2_grp",
.dev_name = "foo-mmc.0",
},
{
.name "8bit"
- .ctrl_dev_name = "pinctrl.0",
+ .ctrl_dev_name = "pinctrl-foo",
.function = "mmc0",
.group = "mmc0_3_grp",
.dev_name = "foo-mmc.0",
@@ -996,7 +996,7 @@ like this:
{
.name "POWERMAP"
- .ctrl_dev_name = "pinctrl.0",
+ .ctrl_dev_name = "pinctrl-foo",
.function = "power_func",
.hog_on_boot = true,
},
diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
index 034b1ad38b3..160fb5aae59 100644
--- a/drivers/pinctrl/core.c
+++ b/drivers/pinctrl/core.c
@@ -34,12 +34,6 @@
static DEFINE_MUTEX(pinctrldev_list_mutex);
static LIST_HEAD(pinctrldev_list);
-static void pinctrl_dev_release(struct device *dev)
-{
- struct pinctrl_dev *pctldev = dev_get_drvdata(dev);
- kfree(pctldev);
-}
-
const char *pinctrl_dev_get_name(struct pinctrl_dev *pctldev)
{
/* We're not allowed to register devices without name */
@@ -71,14 +65,14 @@ struct pinctrl_dev *get_pinctrl_dev_from_dev(struct device *dev,
mutex_lock(&pinctrldev_list_mutex);
list_for_each_entry(pctldev, &pinctrldev_list, node) {
- if (dev && &pctldev->dev == dev) {
+ if (dev && pctldev->dev == dev) {
/* Matched on device pointer */
found = true;
break;
}
if (devname &&
- !strcmp(dev_name(&pctldev->dev), devname)) {
+ !strcmp(dev_name(pctldev->dev), devname)) {
/* Matched on device name */
found = true;
break;
@@ -325,7 +319,7 @@ int pinctrl_get_group_selector(struct pinctrl_dev *pctldev,
const char *gname = pctlops->get_group_name(pctldev,
group_selector);
if (!strcmp(gname, pin_group)) {
- dev_dbg(&pctldev->dev,
+ dev_dbg(pctldev->dev,
"found group selector %u for %s\n",
group_selector,
pin_group);
@@ -335,7 +329,7 @@ int pinctrl_get_group_selector(struct pinctrl_dev *pctldev,
group_selector++;
}
- dev_err(&pctldev->dev, "does not have pin group %s\n",
+ dev_err(pctldev->dev, "does not have pin group %s\n",
pin_group);
return -EINVAL;
@@ -508,11 +502,11 @@ static void pinctrl_init_device_debugfs(struct pinctrl_dev *pctldev)
{
static struct dentry *device_root;
- device_root = debugfs_create_dir(dev_name(&pctldev->dev),
+ device_root = debugfs_create_dir(dev_name(pctldev->dev),
debugfs_root);
if (IS_ERR(device_root) || !device_root) {
pr_warn("failed to create debugfs directory for %s\n",
- dev_name(&pctldev->dev));
+ dev_name(pctldev->dev));
return;
}
debugfs_create_file("pins", S_IFREG | S_IRUGO,
@@ -560,7 +554,6 @@ static void pinctrl_init_debugfs(void)
struct pinctrl_dev *pinctrl_register(struct pinctrl_desc *pctldesc,
struct device *dev, void *driver_data)
{
- static atomic_t pinmux_no = ATOMIC_INIT(0);
struct pinctrl_dev *pctldev;
int ret;
@@ -601,18 +594,7 @@ struct pinctrl_dev *pinctrl_register(struct pinctrl_desc *pctldesc,
spin_lock_init(&pctldev->pin_desc_tree_lock);
INIT_LIST_HEAD(&pctldev->gpio_ranges);
mutex_init(&pctldev->gpio_ranges_lock);
-
- /* Register device */
- pctldev->dev.parent = dev;
- dev_set_name(&pctldev->dev, "pinctrl.%d",
- atomic_inc_return(&pinmux_no) - 1);
- pctldev->dev.release = pinctrl_dev_release;
- ret = device_register(&pctldev->dev);
- if (ret != 0) {
- pr_err("error in device registration\n");
- goto out_reg_dev_err;
- }
- dev_set_drvdata(&pctldev->dev, pctldev);
+ pctldev->dev = dev;
/* Register all the pins */
pr_debug("try to register %d pins on %s...\n",
@@ -622,7 +604,7 @@ struct pinctrl_dev *pinctrl_register(struct pinctrl_desc *pctldesc,
pr_err("error during pin registration\n");
pinctrl_free_pindescs(pctldev, pctldesc->pins,
pctldesc->npins);
- goto out_reg_pins_err;
+ goto out_err;
}
pinctrl_init_device_debugfs(pctldev);
@@ -632,10 +614,8 @@ struct pinctrl_dev *pinctrl_register(struct pinctrl_desc *pctldesc,
pinmux_hog_maps(pctldev);
return pctldev;
-out_reg_pins_err:
- device_del(&pctldev->dev);
-out_reg_dev_err:
- put_device(&pctldev->dev);
+out_err:
+ kfree(pctldev);
return NULL;
}
EXPORT_SYMBOL_GPL(pinctrl_register);
@@ -659,7 +639,7 @@ void pinctrl_unregister(struct pinctrl_dev *pctldev)
/* Destroy descriptor tree */
pinctrl_free_pindescs(pctldev, pctldev->desc->pins,
pctldev->desc->npins);
- device_unregister(&pctldev->dev);
+ kfree(pctldev);
}
EXPORT_SYMBOL_GPL(pinctrl_unregister);
diff --git a/drivers/pinctrl/core.h b/drivers/pinctrl/core.h
index 3f5b911acf1..5375582566a 100644
--- a/drivers/pinctrl/core.h
+++ b/drivers/pinctrl/core.h
@@ -38,7 +38,7 @@ struct pinctrl_dev {
spinlock_t pin_desc_tree_lock;
struct list_head gpio_ranges;
struct mutex gpio_ranges_lock;
- struct device dev;
+ struct device *dev;
struct module *owner;
void *driver_data;
#ifdef CONFIG_PINMUX
diff --git a/drivers/pinctrl/pinconf.c b/drivers/pinctrl/pinconf.c
index 9195eefe258..124762b5702 100644
--- a/drivers/pinctrl/pinconf.c
+++ b/drivers/pinctrl/pinconf.c
@@ -29,7 +29,7 @@ int pin_config_get_for_pin(struct pinctrl_dev *pctldev, unsigned pin,
const struct pinconf_ops *ops = pctldev->desc->confops;
if (!ops || !ops->pin_config_get) {
- dev_err(&pctldev->dev, "cannot get pin configuration, missing "
+ dev_err(pctldev->dev, "cannot get pin configuration, missing "
"pin_config_get() function in driver\n");
return -EINVAL;
}
@@ -65,14 +65,14 @@ int pin_config_set_for_pin(struct pinctrl_dev *pctldev, unsigned pin,
int ret;
if (!ops || !ops->pin_config_set) {
- dev_err(&pctldev->dev, "cannot configure pin, missing "
+ dev_err(pctldev->dev, "cannot configure pin, missing "
"config function in driver\n");
return -EINVAL;
}
ret = ops->pin_config_set(pctldev, pin, config);
if (ret) {
- dev_err(&pctldev->dev,
+ dev_err(pctldev->dev,
"unable to set pin configuration on pin %d\n", pin);
return ret;
}
@@ -108,7 +108,7 @@ int pin_config_group_get(struct pinctrl_dev *pctldev, const char *pin_group,
int selector;
if (!ops || !ops->pin_config_group_get) {
- dev_err(&pctldev->dev, "cannot get configuration for pin "
+ dev_err(pctldev->dev, "cannot get configuration for pin "
"group, missing group config get function in "
"driver\n");
return -EINVAL;
@@ -135,7 +135,7 @@ int pin_config_group_set(struct pinctrl_dev *pctldev, const char *pin_group,
int i;
if (!ops || (!ops->pin_config_group_set && !ops->pin_config_set)) {
- dev_err(&pctldev->dev, "cannot configure pin group, missing "
+ dev_err(pctldev->dev, "cannot configure pin group, missing "
"config function in driver\n");
return -EINVAL;
}
@@ -146,7 +146,7 @@ int pin_config_group_set(struct pinctrl_dev *pctldev, const char *pin_group,
ret = pctlops->get_group_pins(pctldev, selector, &pins, &num_pins);
if (ret) {
- dev_err(&pctldev->dev, "cannot configure pin group, error "
+ dev_err(pctldev->dev, "cannot configure pin group, error "
"getting pins\n");
return ret;
}
diff --git a/drivers/pinctrl/pinmux.c b/drivers/pinctrl/pinmux.c
index a11681b4bd9..3bcc64137dd 100644
--- a/drivers/pinctrl/pinmux.c
+++ b/drivers/pinctrl/pinmux.c
@@ -106,24 +106,24 @@ static int pin_request(struct pinctrl_dev *pctldev,
const struct pinmux_ops *ops = pctldev->desc->pmxops;
int status = -EINVAL;
- dev_dbg(&pctldev->dev, "request pin %d for %s\n", pin, function);
+ dev_dbg(pctldev->dev, "request pin %d for %s\n", pin, function);
desc = pin_desc_get(pctldev, pin);
if (desc == NULL) {
- dev_err(&pctldev->dev,
+ dev_err(pctldev->dev,
"pin is not registered so it cannot be requested\n");
goto out;
}
if (!function) {
- dev_err(&pctldev->dev, "no function name given\n");
+ dev_err(pctldev->dev, "no function name given\n");
return -EINVAL;
}
spin_lock(&desc->lock);
if (desc->mux_function) {
spin_unlock(&desc->lock);
- dev_err(&pctldev->dev,
+ dev_err(pctldev->dev,
"pin already requested\n");
goto out;
}
@@ -132,7 +132,7 @@ static int pin_request(struct pinctrl_dev *pctldev,
/* Let each pin increase references to this module */
if (!try_module_get(pctldev->owner)) {
- dev_err(&pctldev->dev,
+ dev_err(pctldev->dev,
"could not increase module refcount for pin %d\n",
pin);
status = -EINVAL;
@@ -152,7 +152,7 @@ static int pin_request(struct pinctrl_dev *pctldev,
status = 0;
if (status)
- dev_err(&pctldev->dev, "->request on device %s failed "
+ dev_err(pctldev->dev, "->request on device %s failed "
"for pin %d\n",
pctldev->desc->name, pin);
out_free_pin:
@@ -163,7 +163,7 @@ out_free_pin:
}
out:
if (status)
- dev_err(&pctldev->dev, "pin-%d (%s) status %d\n",
+ dev_err(pctldev->dev, "pin-%d (%s) status %d\n",
pin, function ? : "?", status);
return status;
@@ -189,7 +189,7 @@ static const char *pin_free(struct pinctrl_dev *pctldev, int pin,
desc = pin_desc_get(pctldev, pin);
if (desc == NULL) {
- dev_err(&pctldev->dev,
+ dev_err(pctldev->dev,
"pin is not registered so it cannot be freed\n");
return NULL;
}
@@ -434,14 +434,14 @@ static int acquire_pins(struct pinctrl_dev *pctldev,
if (ret)
return ret;
- dev_dbg(&pctldev->dev, "requesting the %u pins from group %u\n",
+ dev_dbg(pctldev->dev, "requesting the %u pins from group %u\n",
num_pins, group_selector);
/* Try to allocate all pins in this group, one by one */
for (i = 0; i < num_pins; i++) {
ret = pin_request(pctldev, pins[i], func, NULL);
if (ret) {
- dev_err(&pctldev->dev,
+ dev_err(pctldev->dev,
"could not get pin %d for function %s "
"on device %s - conflicting mux mappings?\n",
pins[i], func ? : "(undefined)",
@@ -473,7 +473,7 @@ static void release_pins(struct pinctrl_dev *pctldev,
ret = pctlops->get_group_pins(pctldev, group_selector,
&pins, &num_pins);
if (ret) {
- dev_err(&pctldev->dev, "could not get pins to release for "
+ dev_err(pctldev->dev, "could not get pins to release for "
"group selector %d\n",
group_selector);
return;
@@ -525,7 +525,7 @@ static int pinmux_check_pin_group(struct pinctrl_dev *pctldev,
return -EINVAL;
ret = pinctrl_get_group_selector(pctldev, groups[0]);
if (ret < 0) {
- dev_err(&pctldev->dev,
+ dev_err(pctldev->dev,
"function %s wants group %s but the pin "
"controller does not seem to have that group\n",
pmxops->get_function_name(pctldev, func_selector),
@@ -534,7 +534,7 @@ static int pinmux_check_pin_group(struct pinctrl_dev *pctldev,
}
if (num_groups > 1)
- dev_dbg(&pctldev->dev,
+ dev_dbg(pctldev->dev,
"function %s support more than one group, "
"default-selecting first group %s (%d)\n",
pmxops->get_function_name(pctldev, func_selector),
@@ -544,13 +544,13 @@ static int pinmux_check_pin_group(struct pinctrl_dev *pctldev,
return ret;
}
- dev_dbg(&pctldev->dev,
+ dev_dbg(pctldev->dev,
"check if we have pin group %s on controller %s\n",
pin_group, pinctrl_dev_get_name(pctldev));
ret = pinctrl_get_group_selector(pctldev, pin_group);
if (ret < 0) {
- dev_dbg(&pctldev->dev,
+ dev_dbg(pctldev->dev,
"%s does not support pin group %s with function %s\n",
pinctrl_dev_get_name(pctldev),
pin_group,
@@ -627,7 +627,7 @@ static int pinmux_enable_muxmap(struct pinctrl_dev *pctldev,
*/
if (pmx->pctldev && pmx->pctldev != pctldev) {
- dev_err(&pctldev->dev,
+ dev_err(pctldev->dev,
"different pin control devices given for device %s, "
"function %s\n",
devname,
@@ -650,7 +650,7 @@ static int pinmux_enable_muxmap(struct pinctrl_dev *pctldev,
*/
if (pmx->func_selector != UINT_MAX &&
pmx->func_selector != func_selector) {
- dev_err(&pctldev->dev,
+ dev_err(pctldev->dev,
"dual function defines in the map for device %s\n",
devname);
return -EINVAL;
@@ -756,7 +756,7 @@ struct pinmux *pinmux_get(struct device *dev, const char *name)
}
pr_debug("in map, found pctldev %s to handle function %s",
- dev_name(&pctldev->dev), map->function);
+ dev_name(pctldev->dev), map->function);
/*
@@ -932,7 +932,7 @@ static int pinmux_hog_map(struct pinctrl_dev *pctldev,
* without any problems, so then we can hog pinmuxes for
* all devices that just want a static pin mux at this point.
*/
- dev_err(&pctldev->dev, "map %s wants to hog a non-system "
+ dev_err(pctldev->dev, "map %s wants to hog a non-system "
"pinmux, this is not going to work\n", map->name);
return -EINVAL;
}
@@ -944,7 +944,7 @@ static int pinmux_hog_map(struct pinctrl_dev *pctldev,
pmx = pinmux_get(NULL, map->name);
if (IS_ERR(pmx)) {
kfree(hog);
- dev_err(&pctldev->dev,
+ dev_err(pctldev->dev,
"could not get the %s pinmux mapping for hogging\n",
map->name);
return PTR_ERR(pmx);
@@ -954,7 +954,7 @@ static int pinmux_hog_map(struct pinctrl_dev *pctldev,
if (ret) {
pinmux_put(pmx);
kfree(hog);
- dev_err(&pctldev->dev,
+ dev_err(pctldev->dev,
"could not enable the %s pinmux mapping for hogging\n",
map->name);
return ret;
@@ -963,7 +963,7 @@ static int pinmux_hog_map(struct pinctrl_dev *pctldev,
hog->map = map;
hog->pmx = pmx;
- dev_info(&pctldev->dev, "hogged map %s, function %s\n", map->name,
+ dev_info(pctldev->dev, "hogged map %s, function %s\n", map->name,
map->function);
mutex_lock(&pctldev->pinmux_hogs_lock);
list_add(&hog->node, &pctldev->pinmux_hogs);
@@ -982,7 +982,7 @@ static int pinmux_hog_map(struct pinctrl_dev *pctldev,
*/
int pinmux_hog_maps(struct pinctrl_dev *pctldev)
{
- struct device *dev = &pctldev->dev;
+ struct device *dev = pctldev->dev;
const char *devname = dev_name(dev);
int ret;
int i;
diff --git a/include/linux/pinctrl/machine.h b/include/linux/pinctrl/machine.h
index 0ca32eb63b6..ad430e05a7b 100644
--- a/include/linux/pinctrl/machine.h
+++ b/include/linux/pinctrl/machine.h
@@ -73,31 +73,6 @@ struct pinmux_map {
{ .name = a, .ctrl_dev_name = b, .function = c, \
.hog_on_boot = true }
-/*
- * Convenience macro to map a function onto the primary device pinctrl device
- * this is especially helpful on systems that have only one pin controller
- * or need to set up a lot of mappings on the primary controller.
- */
-#define PINMUX_MAP_PRIMARY(a, b, c) \
- { .name = a, .ctrl_dev_name = "pinctrl.0", .function = b, \
- .dev_name = c }
-
-/*
- * Convenience macro to map a system function onto the primary pinctrl device.
- * System functions are not assigned to a particular device.
- */
-#define PINMUX_MAP_PRIMARY_SYS(a, b) \
- { .name = a, .ctrl_dev_name = "pinctrl.0", .function = b }
-
-/*
- * Convenience macro to map a system function onto the primary pinctrl device,
- * to be hogged by the pinmux core until the system shuts down.
- */
-#define PINMUX_MAP_PRIMARY_SYS_HOG(a, b) \
- { .name = a, .ctrl_dev_name = "pinctrl.0", .function = b, \
- .hog_on_boot = true }
-
-
#ifdef CONFIG_PINMUX
extern int pinmux_register_mappings(struct pinmux_map const *map,
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-17 10:48:17 +0000