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path: root/drivers/pinctrl/pinctrl-u300.c
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Diffstat (limited to 'drivers/pinctrl/pinctrl-u300.c')
-rw-r--r--drivers/pinctrl/pinctrl-u300.c146
1 files changed, 34 insertions, 112 deletions
diff --git a/drivers/pinctrl/pinctrl-u300.c b/drivers/pinctrl/pinctrl-u300.c
index 05d029911be..209a01b8bd3 100644
--- a/drivers/pinctrl/pinctrl-u300.c
+++ b/drivers/pinctrl/pinctrl-u300.c
@@ -663,8 +663,6 @@ static const struct pinctrl_pin_desc u300_pads[] = {
struct u300_pmx {
struct device *dev;
struct pinctrl_dev *pctl;
- u32 phybase;
- u32 physize;
void __iomem *virtbase;
};
@@ -862,7 +860,7 @@ static void u300_pin_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s,
seq_printf(s, " " DRIVER_NAME);
}
-static struct pinctrl_ops u300_pctrl_ops = {
+static const struct pinctrl_ops u300_pctrl_ops = {
.get_groups_count = u300_get_groups_count,
.get_group_name = u300_get_group_name,
.get_group_pins = u300_get_group_pins,
@@ -1005,7 +1003,7 @@ static int u300_pmx_get_groups(struct pinctrl_dev *pctldev, unsigned selector,
return 0;
}
-static struct pinmux_ops u300_pmx_ops = {
+static const struct pinmux_ops u300_pmx_ops = {
.get_functions_count = u300_pmx_get_funcs_count,
.get_function_name = u300_pmx_get_func_name,
.get_function_groups = u300_pmx_get_groups,
@@ -1013,52 +1011,11 @@ static struct pinmux_ops u300_pmx_ops = {
.disable = u300_pmx_disable,
};
-/*
- * GPIO ranges handled by the application-side COH901XXX GPIO controller
- * Very many pins can be converted into GPIO pins, but we only list those
- * that are useful in practice to cut down on tables.
- */
-#define U300_GPIO_RANGE(a, b, c) { .name = "COH901XXX", .id = a, .base= a, \
- .pin_base = b, .npins = c }
-
-static struct pinctrl_gpio_range u300_gpio_ranges[] = {
- U300_GPIO_RANGE(10, 426, 1),
- U300_GPIO_RANGE(11, 180, 1),
- U300_GPIO_RANGE(12, 165, 1), /* MS/MMC card insertion */
- U300_GPIO_RANGE(13, 179, 1),
- U300_GPIO_RANGE(14, 178, 1),
- U300_GPIO_RANGE(16, 194, 1),
- U300_GPIO_RANGE(17, 193, 1),
- U300_GPIO_RANGE(18, 192, 1),
- U300_GPIO_RANGE(19, 191, 1),
- U300_GPIO_RANGE(20, 186, 1),
- U300_GPIO_RANGE(21, 185, 1),
- U300_GPIO_RANGE(22, 184, 1),
- U300_GPIO_RANGE(23, 183, 1),
- U300_GPIO_RANGE(24, 182, 1),
- U300_GPIO_RANGE(25, 181, 1),
-};
-
-static struct pinctrl_gpio_range *u300_match_gpio_range(unsigned pin)
+static int u300_pin_config_get(struct pinctrl_dev *pctldev, unsigned pin,
+ unsigned long *config)
{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(u300_gpio_ranges); i++) {
- struct pinctrl_gpio_range *range;
-
- range = &u300_gpio_ranges[i];
- if (pin >= range->pin_base &&
- pin <= (range->pin_base + range->npins - 1))
- return range;
- }
- return NULL;
-}
-
-int u300_pin_config_get(struct pinctrl_dev *pctldev,
- unsigned pin,
- unsigned long *config)
-{
- struct pinctrl_gpio_range *range = u300_match_gpio_range(pin);
+ struct pinctrl_gpio_range *range =
+ pinctrl_find_gpio_range_from_pin(pctldev, pin);
/* We get config for those pins we CAN get it for and that's it */
if (!range)
@@ -1069,27 +1026,29 @@ int u300_pin_config_get(struct pinctrl_dev *pctldev,
config);
}
-int u300_pin_config_set(struct pinctrl_dev *pctldev,
- unsigned pin,
- unsigned long config)
+static int u300_pin_config_set(struct pinctrl_dev *pctldev, unsigned pin,
+ unsigned long *configs, unsigned num_configs)
{
- struct pinctrl_gpio_range *range = u300_match_gpio_range(pin);
- int ret;
+ struct pinctrl_gpio_range *range =
+ pinctrl_find_gpio_range_from_pin(pctldev, pin);
+ int ret, i;
if (!range)
return -EINVAL;
- /* Note: none of these configurations take any argument */
- ret = u300_gpio_config_set(range->gc,
- (pin - range->pin_base + range->base),
- pinconf_to_config_param(config));
- if (ret)
- return ret;
+ for (i = 0; i < num_configs; i++) {
+ /* Note: none of these configurations take any argument */
+ ret = u300_gpio_config_set(range->gc,
+ (pin - range->pin_base + range->base),
+ pinconf_to_config_param(configs[i]));
+ if (ret)
+ return ret;
+ } /* for each config */
return 0;
}
-static struct pinconf_ops u300_pconf_ops = {
+static const struct pinconf_ops u300_pconf_ops = {
.is_generic = true,
.pin_config_get = u300_pin_config_get,
.pin_config_set = u300_pin_config_set,
@@ -1105,15 +1064,10 @@ static struct pinctrl_desc u300_pmx_desc = {
.owner = THIS_MODULE,
};
-static int __devinit u300_pmx_probe(struct platform_device *pdev)
+static int u300_pmx_probe(struct platform_device *pdev)
{
struct u300_pmx *upmx;
struct resource *res;
- struct gpio_chip *gpio_chip = dev_get_platdata(&pdev->dev);
- int ret;
- int i;
-
- pr_err("U300 PMX PROBE\n");
/* Create state holders etc for this driver */
upmx = devm_kzalloc(&pdev->dev, sizeof(*upmx), GFP_KERNEL);
@@ -1123,36 +1077,14 @@ static int __devinit u300_pmx_probe(struct platform_device *pdev)
upmx->dev = &pdev->dev;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- ret = -ENOENT;
- goto out_no_resource;
- }
- upmx->phybase = res->start;
- upmx->physize = resource_size(res);
-
- if (request_mem_region(upmx->phybase, upmx->physize,
- DRIVER_NAME) == NULL) {
- ret = -ENOMEM;
- goto out_no_memregion;
- }
-
- upmx->virtbase = ioremap(upmx->phybase, upmx->physize);
- if (!upmx->virtbase) {
- ret = -ENOMEM;
- goto out_no_remap;
- }
+ upmx->virtbase = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(upmx->virtbase))
+ return PTR_ERR(upmx->virtbase);
upmx->pctl = pinctrl_register(&u300_pmx_desc, &pdev->dev, upmx);
if (!upmx->pctl) {
dev_err(&pdev->dev, "could not register U300 pinmux driver\n");
- ret = -EINVAL;
- goto out_no_pmx;
- }
-
- /* We will handle a range of GPIO pins */
- for (i = 0; i < ARRAY_SIZE(u300_gpio_ranges); i++) {
- u300_gpio_ranges[i].gc = gpio_chip;
- pinctrl_add_gpio_range(upmx->pctl, &u300_gpio_ranges[i]);
+ return -EINVAL;
}
platform_set_drvdata(pdev, upmx);
@@ -1160,41 +1092,31 @@ static int __devinit u300_pmx_probe(struct platform_device *pdev)
dev_info(&pdev->dev, "initialized U300 pin control driver\n");
return 0;
-
-out_no_pmx:
- iounmap(upmx->virtbase);
-out_no_remap:
- platform_set_drvdata(pdev, NULL);
-out_no_memregion:
- release_mem_region(upmx->phybase, upmx->physize);
-out_no_resource:
- devm_kfree(&pdev->dev, upmx);
- return ret;
}
-static int __devexit u300_pmx_remove(struct platform_device *pdev)
+static int u300_pmx_remove(struct platform_device *pdev)
{
struct u300_pmx *upmx = platform_get_drvdata(pdev);
- int i;
- for (i = 0; i < ARRAY_SIZE(u300_gpio_ranges); i++)
- pinctrl_remove_gpio_range(upmx->pctl, &u300_gpio_ranges[i]);
pinctrl_unregister(upmx->pctl);
- iounmap(upmx->virtbase);
- release_mem_region(upmx->phybase, upmx->physize);
- platform_set_drvdata(pdev, NULL);
- devm_kfree(&pdev->dev, upmx);
return 0;
}
+static const struct of_device_id u300_pinctrl_match[] = {
+ { .compatible = "stericsson,pinctrl-u300" },
+ {},
+};
+
+
static struct platform_driver u300_pmx_driver = {
.driver = {
.name = DRIVER_NAME,
.owner = THIS_MODULE,
+ .of_match_table = u300_pinctrl_match,
},
.probe = u300_pmx_probe,
- .remove = __devexit_p(u300_pmx_remove),
+ .remove = u300_pmx_remove,
};
static int __init u300_pmx_init(void)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 14:14:46 +0000