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path: root/drivers/pinctrl/samsung/pinctrl-samsung.c
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Diffstat (limited to 'drivers/pinctrl/samsung/pinctrl-samsung.c')
-rw-r--r--drivers/pinctrl/samsung/pinctrl-samsung.c131
1 files changed, 74 insertions, 57 deletions
diff --git a/drivers/pinctrl/samsung/pinctrl-samsung.c b/drivers/pinctrl/samsung/pinctrl-samsung.c
index 2d37c8f49f3c..32940a01a84f 100644
--- a/drivers/pinctrl/samsung/pinctrl-samsung.c
+++ b/drivers/pinctrl/samsung/pinctrl-samsung.c
@@ -349,7 +349,7 @@ static void pin_to_reg_bank(struct samsung_pinctrl_drv_data *drvdata,
{
struct samsung_pin_bank *b;
- b = drvdata->ctrl->pin_banks;
+ b = drvdata->pin_banks;
while ((pin >= b->pin_base) &&
((b->pin_base + b->nr_pins - 1) < pin))
@@ -366,7 +366,7 @@ static void samsung_pinmux_setup(struct pinctrl_dev *pctldev, unsigned selector,
unsigned group, bool enable)
{
struct samsung_pinctrl_drv_data *drvdata;
- struct samsung_pin_bank_type *type;
+ const struct samsung_pin_bank_type *type;
struct samsung_pin_bank *bank;
void __iomem *reg;
u32 mask, shift, data, pin_offset;
@@ -378,7 +378,7 @@ static void samsung_pinmux_setup(struct pinctrl_dev *pctldev, unsigned selector,
func = &drvdata->pmx_functions[selector];
grp = &drvdata->pin_groups[group];
- pin_to_reg_bank(drvdata, grp->pins[0] - drvdata->ctrl->base,
+ pin_to_reg_bank(drvdata, grp->pins[0] - drvdata->pin_base,
&reg, &pin_offset, &bank);
type = bank->type;
mask = (1 << type->fld_width[PINCFG_TYPE_FUNC]) - 1;
@@ -422,7 +422,7 @@ static int samsung_pinconf_rw(struct pinctrl_dev *pctldev, unsigned int pin,
unsigned long *config, bool set)
{
struct samsung_pinctrl_drv_data *drvdata;
- struct samsung_pin_bank_type *type;
+ const struct samsung_pin_bank_type *type;
struct samsung_pin_bank *bank;
void __iomem *reg_base;
enum pincfg_type cfg_type = PINCFG_UNPACK_TYPE(*config);
@@ -431,7 +431,7 @@ static int samsung_pinconf_rw(struct pinctrl_dev *pctldev, unsigned int pin,
unsigned long flags;
drvdata = pinctrl_dev_get_drvdata(pctldev);
- pin_to_reg_bank(drvdata, pin - drvdata->ctrl->base, &reg_base,
+ pin_to_reg_bank(drvdata, pin - drvdata->pin_base, &reg_base,
&pin_offset, &bank);
type = bank->type;
@@ -528,7 +528,7 @@ static const struct pinconf_ops samsung_pinconf_ops = {
static void samsung_gpio_set(struct gpio_chip *gc, unsigned offset, int value)
{
struct samsung_pin_bank *bank = gc_to_pin_bank(gc);
- struct samsung_pin_bank_type *type = bank->type;
+ const struct samsung_pin_bank_type *type = bank->type;
unsigned long flags;
void __iomem *reg;
u32 data;
@@ -552,7 +552,7 @@ static int samsung_gpio_get(struct gpio_chip *gc, unsigned offset)
void __iomem *reg;
u32 data;
struct samsung_pin_bank *bank = gc_to_pin_bank(gc);
- struct samsung_pin_bank_type *type = bank->type;
+ const struct samsung_pin_bank_type *type = bank->type;
reg = bank->drvdata->virt_base + bank->pctl_offset;
@@ -569,7 +569,7 @@ static int samsung_gpio_get(struct gpio_chip *gc, unsigned offset)
static int samsung_gpio_set_direction(struct gpio_chip *gc,
unsigned offset, bool input)
{
- struct samsung_pin_bank_type *type;
+ const struct samsung_pin_bank_type *type;
struct samsung_pin_bank *bank;
struct samsung_pinctrl_drv_data *drvdata;
void __iomem *reg;
@@ -834,32 +834,32 @@ static int samsung_pinctrl_register(struct platform_device *pdev,
ctrldesc->confops = &samsung_pinconf_ops;
pindesc = devm_kzalloc(&pdev->dev, sizeof(*pindesc) *
- drvdata->ctrl->nr_pins, GFP_KERNEL);
+ drvdata->nr_pins, GFP_KERNEL);
if (!pindesc) {
dev_err(&pdev->dev, "mem alloc for pin descriptors failed\n");
return -ENOMEM;
}
ctrldesc->pins = pindesc;
- ctrldesc->npins = drvdata->ctrl->nr_pins;
+ ctrldesc->npins = drvdata->nr_pins;
/* dynamically populate the pin number and pin name for pindesc */
for (pin = 0, pdesc = pindesc; pin < ctrldesc->npins; pin++, pdesc++)
- pdesc->number = pin + drvdata->ctrl->base;
+ pdesc->number = pin + drvdata->pin_base;
/*
* allocate space for storing the dynamically generated names for all
* the pins which belong to this pin-controller.
*/
pin_names = devm_kzalloc(&pdev->dev, sizeof(char) * PIN_NAME_LENGTH *
- drvdata->ctrl->nr_pins, GFP_KERNEL);
+ drvdata->nr_pins, GFP_KERNEL);
if (!pin_names) {
dev_err(&pdev->dev, "mem alloc for pin names failed\n");
return -ENOMEM;
}
/* for each pin, the name of the pin is pin-bank name + pin number */
- for (bank = 0; bank < drvdata->ctrl->nr_banks; bank++) {
- pin_bank = &drvdata->ctrl->pin_banks[bank];
+ for (bank = 0; bank < drvdata->nr_banks; bank++) {
+ pin_bank = &drvdata->pin_banks[bank];
for (pin = 0; pin < pin_bank->nr_pins; pin++) {
sprintf(pin_names, "%s-%d", pin_bank->name, pin);
pdesc = pindesc + pin_bank->pin_base + pin;
@@ -878,11 +878,11 @@ static int samsung_pinctrl_register(struct platform_device *pdev,
return -EINVAL;
}
- for (bank = 0; bank < drvdata->ctrl->nr_banks; ++bank) {
- pin_bank = &drvdata->ctrl->pin_banks[bank];
+ for (bank = 0; bank < drvdata->nr_banks; ++bank) {
+ pin_bank = &drvdata->pin_banks[bank];
pin_bank->grange.name = pin_bank->name;
pin_bank->grange.id = bank;
- pin_bank->grange.pin_base = drvdata->ctrl->base
+ pin_bank->grange.pin_base = drvdata->pin_base
+ pin_bank->pin_base;
pin_bank->grange.base = pin_bank->gpio_chip.base;
pin_bank->grange.npins = pin_bank->gpio_chip.ngpio;
@@ -918,17 +918,16 @@ static const struct gpio_chip samsung_gpiolib_chip = {
static int samsung_gpiolib_register(struct platform_device *pdev,
struct samsung_pinctrl_drv_data *drvdata)
{
- struct samsung_pin_ctrl *ctrl = drvdata->ctrl;
- struct samsung_pin_bank *bank = ctrl->pin_banks;
+ struct samsung_pin_bank *bank = drvdata->pin_banks;
struct gpio_chip *gc;
int ret;
int i;
- for (i = 0; i < ctrl->nr_banks; ++i, ++bank) {
+ for (i = 0; i < drvdata->nr_banks; ++i, ++bank) {
bank->gpio_chip = samsung_gpiolib_chip;
gc = &bank->gpio_chip;
- gc->base = ctrl->base + bank->pin_base;
+ gc->base = drvdata->pin_base + bank->pin_base;
gc->ngpio = bank->nr_pins;
gc->dev = &pdev->dev;
gc->of_node = bank->of_node;
@@ -954,51 +953,70 @@ fail:
static int samsung_gpiolib_unregister(struct platform_device *pdev,
struct samsung_pinctrl_drv_data *drvdata)
{
- struct samsung_pin_ctrl *ctrl = drvdata->ctrl;
- struct samsung_pin_bank *bank = ctrl->pin_banks;
+ struct samsung_pin_bank *bank = drvdata->pin_banks;
int i;
- for (i = 0; i < ctrl->nr_banks; ++i, ++bank)
+ for (i = 0; i < drvdata->nr_banks; ++i, ++bank)
gpiochip_remove(&bank->gpio_chip);
+
return 0;
}
static const struct of_device_id samsung_pinctrl_dt_match[];
/* retrieve the soc specific data */
-static struct samsung_pin_ctrl *samsung_pinctrl_get_soc_data(
- struct samsung_pinctrl_drv_data *d,
- struct platform_device *pdev)
+static const struct samsung_pin_ctrl *
+samsung_pinctrl_get_soc_data(struct samsung_pinctrl_drv_data *d,
+ struct platform_device *pdev)
{
int id;
const struct of_device_id *match;
struct device_node *node = pdev->dev.of_node;
struct device_node *np;
- struct samsung_pin_ctrl *ctrl;
+ const struct samsung_pin_bank_data *bdata;
+ const struct samsung_pin_ctrl *ctrl;
struct samsung_pin_bank *bank;
int i;
id = of_alias_get_id(node, "pinctrl");
if (id < 0) {
dev_err(&pdev->dev, "failed to get alias id\n");
- return NULL;
+ return ERR_PTR(-ENOENT);
}
match = of_match_node(samsung_pinctrl_dt_match, node);
ctrl = (struct samsung_pin_ctrl *)match->data + id;
- bank = ctrl->pin_banks;
- for (i = 0; i < ctrl->nr_banks; ++i, ++bank) {
+ d->suspend = ctrl->suspend;
+ d->resume = ctrl->resume;
+ d->nr_banks = ctrl->nr_banks;
+ d->pin_banks = devm_kcalloc(&pdev->dev, d->nr_banks,
+ sizeof(*d->pin_banks), GFP_KERNEL);
+ if (!d->pin_banks)
+ return ERR_PTR(-ENOMEM);
+
+ bank = d->pin_banks;
+ bdata = ctrl->pin_banks;
+ for (i = 0; i < ctrl->nr_banks; ++i, ++bdata, ++bank) {
+ bank->type = bdata->type;
+ bank->pctl_offset = bdata->pctl_offset;
+ bank->nr_pins = bdata->nr_pins;
+ bank->eint_func = bdata->eint_func;
+ bank->eint_type = bdata->eint_type;
+ bank->eint_mask = bdata->eint_mask;
+ bank->eint_offset = bdata->eint_offset;
+ bank->name = bdata->name;
+
spin_lock_init(&bank->slock);
bank->drvdata = d;
- bank->pin_base = ctrl->nr_pins;
- ctrl->nr_pins += bank->nr_pins;
+ bank->pin_base = d->nr_pins;
+ d->nr_pins += bank->nr_pins;
}
for_each_child_of_node(node, np) {
if (!of_find_property(np, "gpio-controller", NULL))
continue;
- bank = ctrl->pin_banks;
- for (i = 0; i < ctrl->nr_banks; ++i, ++bank) {
+ bank = d->pin_banks;
+ for (i = 0; i < d->nr_banks; ++i, ++bank) {
if (!strcmp(bank->name, np->name)) {
bank->of_node = np;
break;
@@ -1006,8 +1024,8 @@ static struct samsung_pin_ctrl *samsung_pinctrl_get_soc_data(
}
}
- ctrl->base = pin_base;
- pin_base += ctrl->nr_pins;
+ d->pin_base = pin_base;
+ pin_base += d->nr_pins;
return ctrl;
}
@@ -1015,8 +1033,8 @@ static struct samsung_pin_ctrl *samsung_pinctrl_get_soc_data(
static int samsung_pinctrl_probe(struct platform_device *pdev)
{
struct samsung_pinctrl_drv_data *drvdata;
+ const struct samsung_pin_ctrl *ctrl;
struct device *dev = &pdev->dev;
- struct samsung_pin_ctrl *ctrl;
struct resource *res;
int ret;
@@ -1033,11 +1051,10 @@ static int samsung_pinctrl_probe(struct platform_device *pdev)
}
ctrl = samsung_pinctrl_get_soc_data(drvdata, pdev);
- if (!ctrl) {
+ if (IS_ERR(ctrl)) {
dev_err(&pdev->dev, "driver data not available\n");
- return -EINVAL;
+ return PTR_ERR(ctrl);
}
- drvdata->ctrl = ctrl;
drvdata->dev = dev;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -1082,16 +1099,14 @@ static int samsung_pinctrl_probe(struct platform_device *pdev)
static void samsung_pinctrl_suspend_dev(
struct samsung_pinctrl_drv_data *drvdata)
{
- struct samsung_pin_ctrl *ctrl = drvdata->ctrl;
void __iomem *virt_base = drvdata->virt_base;
int i;
- for (i = 0; i < ctrl->nr_banks; i++) {
- struct samsung_pin_bank *bank = &ctrl->pin_banks[i];
+ for (i = 0; i < drvdata->nr_banks; i++) {
+ struct samsung_pin_bank *bank = &drvdata->pin_banks[i];
void __iomem *reg = virt_base + bank->pctl_offset;
-
- u8 *offs = bank->type->reg_offset;
- u8 *widths = bank->type->fld_width;
+ const u8 *offs = bank->type->reg_offset;
+ const u8 *widths = bank->type->fld_width;
enum pincfg_type type;
/* Registers without a powerdown config aren't lost */
@@ -1116,8 +1131,8 @@ static void samsung_pinctrl_suspend_dev(
}
}
- if (ctrl->suspend)
- ctrl->suspend(drvdata);
+ if (drvdata->suspend)
+ drvdata->suspend(drvdata);
}
/**
@@ -1130,19 +1145,17 @@ static void samsung_pinctrl_suspend_dev(
*/
static void samsung_pinctrl_resume_dev(struct samsung_pinctrl_drv_data *drvdata)
{
- struct samsung_pin_ctrl *ctrl = drvdata->ctrl;
void __iomem *virt_base = drvdata->virt_base;
int i;
- if (ctrl->resume)
- ctrl->resume(drvdata);
+ if (drvdata->resume)
+ drvdata->resume(drvdata);
- for (i = 0; i < ctrl->nr_banks; i++) {
- struct samsung_pin_bank *bank = &ctrl->pin_banks[i];
+ for (i = 0; i < drvdata->nr_banks; i++) {
+ struct samsung_pin_bank *bank = &drvdata->pin_banks[i];
void __iomem *reg = virt_base + bank->pctl_offset;
-
- u8 *offs = bank->type->reg_offset;
- u8 *widths = bank->type->fld_width;
+ const u8 *offs = bank->type->reg_offset;
+ const u8 *widths = bank->type->fld_width;
enum pincfg_type type;
/* Registers without a powerdown config aren't lost */
@@ -1218,6 +1231,8 @@ static const struct of_device_id samsung_pinctrl_dt_match[] = {
.data = (void *)exynos4210_pin_ctrl },
{ .compatible = "samsung,exynos4x12-pinctrl",
.data = (void *)exynos4x12_pin_ctrl },
+ { .compatible = "samsung,exynos4415-pinctrl",
+ .data = (void *)exynos4415_pin_ctrl },
{ .compatible = "samsung,exynos5250-pinctrl",
.data = (void *)exynos5250_pin_ctrl },
{ .compatible = "samsung,exynos5260-pinctrl",
@@ -1226,6 +1241,8 @@ static const struct of_device_id samsung_pinctrl_dt_match[] = {
.data = (void *)exynos5420_pin_ctrl },
{ .compatible = "samsung,s5pv210-pinctrl",
.data = (void *)s5pv210_pin_ctrl },
+ { .compatible = "samsung,exynos7-pinctrl",
+ .data = (void *)exynos7_pin_ctrl },
#endif
#ifdef CONFIG_PINCTRL_S3C64XX
{ .compatible = "samsung,s3c64xx-pinctrl",
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