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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.c97
1 files changed, 12 insertions, 85 deletions
diff --git a/drivers/pinctrl/pinctrl-u300.c b/drivers/pinctrl/pinctrl-u300.c
index ab09972450e5..8c039ad22baf 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;
};
@@ -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)
-{
- 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)
+static 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)
@@ -1069,11 +1026,11 @@ 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 config)
{
- struct pinctrl_gpio_range *range = u300_match_gpio_range(pin);
+ struct pinctrl_gpio_range *range =
+ pinctrl_find_gpio_range_from_pin(pctldev, pin);
int ret;
if (!range)
@@ -1109,9 +1066,6 @@ static int __devinit 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;
/* Create state holders etc for this driver */
upmx = devm_kzalloc(&pdev->dev, sizeof(*upmx), GFP_KERNEL);
@@ -1123,32 +1077,15 @@ static int __devinit u300_pmx_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res)
return -ENOENT;
- 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_request_and_ioremap(&pdev->dev, res);
+ if (!upmx->virtbase)
+ return -ENOMEM;
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);
@@ -1156,14 +1093,6 @@ 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);
- return ret;
}
static int u300_pmx_remove(struct platform_device *pdev)
@@ -1171,8 +1100,6 @@ static int u300_pmx_remove(struct platform_device *pdev)
struct u300_pmx *upmx = platform_get_drvdata(pdev);
pinctrl_unregister(upmx->pctl);
- iounmap(upmx->virtbase);
- release_mem_region(upmx->phybase, upmx->physize);
platform_set_drvdata(pdev, NULL);
return 0;