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path: root/drivers/pinctrl/sh-pfc/pinctrl.c
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Diffstat (limited to 'drivers/pinctrl/sh-pfc/pinctrl.c')
-rw-r--r--drivers/pinctrl/sh-pfc/pinctrl.c59
1 files changed, 35 insertions, 24 deletions
diff --git a/drivers/pinctrl/sh-pfc/pinctrl.c b/drivers/pinctrl/sh-pfc/pinctrl.c
index 3e49bf0eac25..ef5cf5d8298f 100644
--- a/drivers/pinctrl/sh-pfc/pinctrl.c
+++ b/drivers/pinctrl/sh-pfc/pinctrl.c
@@ -25,6 +25,10 @@
#include "core.h"
+struct sh_pfc_pin_config {
+ u32 type;
+};
+
struct sh_pfc_pinctrl {
struct pinctrl_dev *pctl;
struct pinctrl_desc pctl_desc;
@@ -32,6 +36,7 @@ struct sh_pfc_pinctrl {
struct sh_pfc *pfc;
struct pinctrl_pin_desc *pins;
+ struct sh_pfc_pin_config *configs;
};
static int sh_pfc_get_groups_count(struct pinctrl_dev *pctldev)
@@ -148,30 +153,30 @@ static void sh_pfc_func_disable(struct pinctrl_dev *pctldev, unsigned selector,
spin_unlock_irqrestore(&pfc->lock, flags);
}
-static int sh_pfc_reconfig_pin(struct sh_pfc *pfc, unsigned offset,
+static int sh_pfc_reconfig_pin(struct sh_pfc_pinctrl *pmx, unsigned offset,
int new_type)
{
- struct sh_pfc_pin *pin = sh_pfc_get_pin(pfc, offset);
+ struct sh_pfc *pfc = pmx->pfc;
+ int idx = sh_pfc_get_pin_index(pfc, offset);
+ struct sh_pfc_pin_config *cfg = &pmx->configs[idx];
+ struct sh_pfc_pin *pin = &pfc->info->pins[idx];
unsigned int mark = pin->enum_id;
unsigned long flags;
- int pinmux_type;
int ret = -EINVAL;
spin_lock_irqsave(&pfc->lock, flags);
- pinmux_type = pin->flags & PINMUX_FLAG_TYPE;
-
/*
* See if the present config needs to first be de-configured.
*/
- switch (pinmux_type) {
+ switch (cfg->type) {
case PINMUX_TYPE_GPIO:
break;
case PINMUX_TYPE_OUTPUT:
case PINMUX_TYPE_INPUT:
case PINMUX_TYPE_INPUT_PULLUP:
case PINMUX_TYPE_INPUT_PULLDOWN:
- sh_pfc_config_mux(pfc, mark, pinmux_type, GPIO_CFG_FREE);
+ sh_pfc_config_mux(pfc, mark, cfg->type, GPIO_CFG_FREE);
break;
default:
goto err;
@@ -189,8 +194,7 @@ static int sh_pfc_reconfig_pin(struct sh_pfc *pfc, unsigned offset,
if (sh_pfc_config_mux(pfc, mark, new_type, GPIO_CFG_REQ) != 0)
goto err;
- pin->flags &= ~PINMUX_FLAG_TYPE;
- pin->flags |= new_type;
+ cfg->type = new_type;
ret = 0;
@@ -206,22 +210,21 @@ static int sh_pfc_gpio_request_enable(struct pinctrl_dev *pctldev,
{
struct sh_pfc_pinctrl *pmx = pinctrl_dev_get_drvdata(pctldev);
struct sh_pfc *pfc = pmx->pfc;
- struct sh_pfc_pin *pin = sh_pfc_get_pin(pfc, offset);
+ int idx = sh_pfc_get_pin_index(pfc, offset);
+ struct sh_pfc_pin_config *cfg = &pmx->configs[idx];
unsigned long flags;
- int ret, pinmux_type;
+ int ret;
spin_lock_irqsave(&pfc->lock, flags);
- pinmux_type = pin->flags & PINMUX_FLAG_TYPE;
-
- switch (pinmux_type) {
+ switch (cfg->type) {
case PINMUX_TYPE_GPIO:
case PINMUX_TYPE_INPUT:
case PINMUX_TYPE_OUTPUT:
break;
case PINMUX_TYPE_FUNCTION:
default:
- pr_err("Unsupported mux type (%d), bailing...\n", pinmux_type);
+ pr_err("Unsupported mux type (%d), bailing...\n", cfg->type);
ret = -ENOTSUPP;
goto err;
}
@@ -240,15 +243,14 @@ static void sh_pfc_gpio_disable_free(struct pinctrl_dev *pctldev,
{
struct sh_pfc_pinctrl *pmx = pinctrl_dev_get_drvdata(pctldev);
struct sh_pfc *pfc = pmx->pfc;
- struct sh_pfc_pin *pin = sh_pfc_get_pin(pfc, offset);
+ int idx = sh_pfc_get_pin_index(pfc, offset);
+ struct sh_pfc_pin_config *cfg = &pmx->configs[idx];
+ struct sh_pfc_pin *pin = &pfc->info->pins[idx];
unsigned long flags;
- int pinmux_type;
spin_lock_irqsave(&pfc->lock, flags);
- pinmux_type = pin->flags & PINMUX_FLAG_TYPE;
-
- sh_pfc_config_mux(pfc, pin->enum_id, pinmux_type, GPIO_CFG_FREE);
+ sh_pfc_config_mux(pfc, pin->enum_id, cfg->type, GPIO_CFG_FREE);
spin_unlock_irqrestore(&pfc->lock, flags);
}
@@ -260,7 +262,7 @@ static int sh_pfc_gpio_set_direction(struct pinctrl_dev *pctldev,
struct sh_pfc_pinctrl *pmx = pinctrl_dev_get_drvdata(pctldev);
int type = input ? PINMUX_TYPE_INPUT : PINMUX_TYPE_OUTPUT;
- return sh_pfc_reconfig_pin(pmx->pfc, offset, type);
+ return sh_pfc_reconfig_pin(pmx, offset, type);
}
static const struct pinmux_ops sh_pfc_pinmux_ops = {
@@ -279,9 +281,10 @@ static int sh_pfc_pinconf_get(struct pinctrl_dev *pctldev, unsigned _pin,
{
struct sh_pfc_pinctrl *pmx = pinctrl_dev_get_drvdata(pctldev);
struct sh_pfc *pfc = pmx->pfc;
- struct sh_pfc_pin *pin = sh_pfc_get_pin(pfc, _pin);
+ int idx = sh_pfc_get_pin_index(pfc, _pin);
+ struct sh_pfc_pin_config *cfg = &pmx->configs[idx];
- *config = pin->flags & PINMUX_FLAG_TYPE;
+ *config = cfg->type;
return 0;
}
@@ -295,7 +298,7 @@ static int sh_pfc_pinconf_set(struct pinctrl_dev *pctldev, unsigned pin,
if (config >= PINMUX_FLAG_TYPE)
return -EINVAL;
- return sh_pfc_reconfig_pin(pmx->pfc, pin, config);
+ return sh_pfc_reconfig_pin(pmx, pin, config);
}
static void sh_pfc_pinconf_dbg_show(struct pinctrl_dev *pctldev,
@@ -351,17 +354,25 @@ static int sh_pfc_map_pins(struct sh_pfc *pfc, struct sh_pfc_pinctrl *pmx)
if (unlikely(!pmx->pins))
return -ENOMEM;
+ pmx->configs = devm_kzalloc(pfc->dev,
+ sizeof(*pmx->configs) * pfc->info->nr_pins,
+ GFP_KERNEL);
+ if (unlikely(!pmx->configs))
+ return -ENOMEM;
+
for (i = 0, nr_pins = 0; i < nr_ranges; ++i) {
const struct pinmux_range *range = &ranges[i];
unsigned int number;
for (number = range->begin; number <= range->end;
number++, nr_pins++) {
+ struct sh_pfc_pin_config *cfg = &pmx->configs[nr_pins];
struct pinctrl_pin_desc *pin = &pmx->pins[nr_pins];
struct sh_pfc_pin *info = &pfc->info->pins[nr_pins];
pin->number = number;
pin->name = info->name;
+ cfg->type = PINMUX_TYPE_GPIO;
}
}