in the second case, a pull-down resistor is needed on the rail.
Hardware that supports open drain or open source or both, can implement a
-special callback in the gpio_chip: .set_single_ended() that takes an enum flag
-telling whether to configure the line as open drain, open source or push-pull.
-This will happen in response to the GPIO_OPEN_DRAIN or GPIO_OPEN_SOURCE flag
-set in the machine file, or coming from other hardware descriptions.
+special callback in the gpio_chip: .set_config() that takes a generic
+pinconf packed value telling whether to configure the line as open drain,
+open source or push-pull. This will happen in response to the
+GPIO_OPEN_DRAIN or GPIO_OPEN_SOURCE flag set in the machine file, or coming
+from other hardware descriptions.
If this state can not be configured in hardware, i.e. if the GPIO hardware does
not support open drain/open source in hardware, the GPIO library will instead
return 0;
}
+static int bcm_kona_gpio_set_config(struct gpio_chip *chip, unsigned gpio,
+ unsigned long config)
+{
+ u32 debounce;
+
+ if (pinconf_to_config_param(config) != PIN_CONFIG_INPUT_DEBOUNCE)
+ return -ENOTSUPP;
+
+ debounce = pinconf_to_config_argument(config);
+ return bcm_kona_gpio_set_debounce(chip, gpio, debounce);
+}
+
static const struct gpio_chip template_chip = {
.label = "bcm-kona-gpio",
.owner = THIS_MODULE,
.get = bcm_kona_gpio_get,
.direction_output = bcm_kona_gpio_direction_output,
.set = bcm_kona_gpio_set,
- .set_debounce = bcm_kona_gpio_set_debounce,
+ .set_config = bcm_kona_gpio_set_config,
.to_irq = bcm_kona_gpio_to_irq,
.base = 0,
};
return dln2_gpio_set_direction(chip, offset, DLN2_GPIO_DIRECTION_OUT);
}
-static int dln2_gpio_set_debounce(struct gpio_chip *chip, unsigned offset,
- unsigned debounce)
+static int dln2_gpio_set_config(struct gpio_chip *chip, unsigned offset,
+ unsigned long config)
{
struct dln2_gpio *dln2 = gpiochip_get_data(chip);
- __le32 duration = cpu_to_le32(debounce);
+ __le32 duration;
+ if (pinconf_to_config_param(config) != PIN_CONFIG_INPUT_DEBOUNCE)
+ return -ENOTSUPP;
+
+ duration = cpu_to_le32(pinconf_to_config_argument(config));
return dln2_transfer_tx(dln2->pdev, DLN2_GPIO_SET_DEBOUNCE,
&duration, sizeof(duration));
}
dln2->gpio.get_direction = dln2_gpio_get_direction;
dln2->gpio.direction_input = dln2_gpio_direction_input;
dln2->gpio.direction_output = dln2_gpio_direction_output;
- dln2->gpio.set_debounce = dln2_gpio_set_debounce;
+ dln2->gpio.set_config = dln2_gpio_set_config;
platform_set_drvdata(pdev, dln2);
return 0;
}
+static int dwapb_gpio_set_config(struct gpio_chip *gc, unsigned offset,
+ unsigned long config)
+{
+ u32 debounce;
+
+ if (pinconf_to_config_param(config) != PIN_CONFIG_INPUT_DEBOUNCE)
+ return -ENOTSUPP;
+
+ debounce = pinconf_to_config_argument(config);
+ return dwapb_gpio_set_debounce(gc, offset, debounce);
+}
+
static irqreturn_t dwapb_irq_handler_mfd(int irq, void *dev_id)
{
u32 worked;
/* Only port A support debounce */
if (pp->idx == 0)
- port->gc.set_debounce = dwapb_gpio_set_debounce;
+ port->gc.set_config = dwapb_gpio_set_config;
if (pp->irq)
dwapb_configure_irqs(gpio, port, pp);
EP93XX_GPIO_BANK("H", 0x40, 0x44, 56, false),
};
-static int ep93xx_gpio_set_debounce(struct gpio_chip *chip,
- unsigned offset, unsigned debounce)
+static int ep93xx_gpio_set_config(struct gpio_chip *chip, unsigned offset,
+ unsigned long config)
{
int gpio = chip->base + offset;
int irq = gpio_to_irq(gpio);
+ u32 debounce;
+
+ if (pinconf_to_config_param(config) != PIN_CONFIG_INPUT_DEBOUNCE)
+ return -ENOTSUPP;
if (irq < 0)
return -EINVAL;
+ debounce = pinconf_to_config_argument(config);
ep93xx_gpio_int_debounce(irq, debounce ? true : false);
return 0;
gc->base = bank->base;
if (bank->has_debounce) {
- gc->set_debounce = ep93xx_gpio_set_debounce;
+ gc->set_config = ep93xx_gpio_set_config;
gc->to_irq = ep93xx_gpio_to_irq;
}
static int f7188x_gpio_direction_out(struct gpio_chip *chip,
unsigned offset, int value);
static void f7188x_gpio_set(struct gpio_chip *chip, unsigned offset, int value);
-static int f7188x_gpio_set_single_ended(struct gpio_chip *gc,
- unsigned offset,
- enum single_ended_mode mode);
+static int f7188x_gpio_set_config(struct gpio_chip *chip, unsigned offset,
+ unsigned long config);
#define F7188X_GPIO_BANK(_base, _ngpio, _regbase) \
{ \
.get = f7188x_gpio_get, \
.direction_output = f7188x_gpio_direction_out, \
.set = f7188x_gpio_set, \
- .set_single_ended = f7188x_gpio_set_single_ended, \
+ .set_config = f7188x_gpio_set_config, \
.base = _base, \
.ngpio = _ngpio, \
.can_sleep = true, \
superio_exit(sio->addr);
}
-static int f7188x_gpio_set_single_ended(struct gpio_chip *chip,
- unsigned offset,
- enum single_ended_mode mode)
+static int f7188x_gpio_set_config(struct gpio_chip *chip, unsigned offset,
+ unsigned long config)
{
int err;
+ enum pin_config_param param = pinconf_to_config_param(config);
struct f7188x_gpio_bank *bank = gpiochip_get_data(chip);
struct f7188x_sio *sio = bank->data->sio;
u8 data;
- if (mode != LINE_MODE_OPEN_DRAIN &&
- mode != LINE_MODE_PUSH_PULL)
+ if (param != PIN_CONFIG_DRIVE_OPEN_DRAIN &&
+ param != PIN_CONFIG_DRIVE_PUSH_PULL)
return -ENOTSUPP;
err = superio_enter(sio->addr);
superio_select(sio->addr, SIO_LD_GPIO);
data = superio_inb(sio->addr, gpio_out_mode(bank->regbase));
- if (mode == LINE_MODE_OPEN_DRAIN)
+ if (param == PIN_CONFIG_DRIVE_OPEN_DRAIN)
data &= ~BIT(offset);
else
data |= BIT(offset);
return 0;
}
-static int lp873x_gpio_set_single_ended(struct gpio_chip *gc,
- unsigned int offset,
- enum single_ended_mode mode)
+static int lp873x_gpio_set_config(struct gpio_chip *gc, unsigned offset,
+ unsigned long config)
{
struct lp873x_gpio *gpio = gpiochip_get_data(gc);
- switch (mode) {
- case LINE_MODE_OPEN_DRAIN:
+ switch (pinconf_to_config_param(config)) {
+ case PIN_CONFIG_DRIVE_OPEN_DRAIN:
return regmap_update_bits(gpio->lp873->regmap,
LP873X_REG_GPO_CTRL,
BIT(offset * BITS_PER_GPO +
LP873X_GPO_CTRL_OD),
BIT(offset * BITS_PER_GPO +
LP873X_GPO_CTRL_OD));
- case LINE_MODE_PUSH_PULL:
+
+ case PIN_CONFIG_DRIVE_PUSH_PULL:
return regmap_update_bits(gpio->lp873->regmap,
LP873X_REG_GPO_CTRL,
BIT(offset * BITS_PER_GPO +
.direction_output = lp873x_gpio_direction_output,
.get = lp873x_gpio_get,
.set = lp873x_gpio_set,
- .set_single_ended = lp873x_gpio_set_single_ended,
+ .set_config = lp873x_gpio_set_config,
.base = -1,
.ngpio = 2,
.can_sleep = true,
return ret;
}
-static int max77620_gpio_set_debounce(struct gpio_chip *gc,
+static int max77620_gpio_set_debounce(struct max77620_gpio *mgpio,
unsigned int offset,
unsigned int debounce)
{
- struct max77620_gpio *mgpio = gpiochip_get_data(gc);
u8 val;
int ret;
dev_err(mgpio->dev, "CNFG_GPIO_OUT update failed: %d\n", ret);
}
-static int max77620_gpio_set_single_ended(struct gpio_chip *gc,
- unsigned int offset,
- enum single_ended_mode mode)
+static int max77620_gpio_set_config(struct gpio_chip *gc, unsigned int offset,
+ unsigned long config)
{
struct max77620_gpio *mgpio = gpiochip_get_data(gc);
- switch (mode) {
- case LINE_MODE_OPEN_DRAIN:
+ switch (pinconf_to_config_param(config)) {
+ case PIN_CONFIG_DRIVE_OPEN_DRAIN:
return regmap_update_bits(mgpio->rmap, GPIO_REG_ADDR(offset),
MAX77620_CNFG_GPIO_DRV_MASK,
MAX77620_CNFG_GPIO_DRV_OPENDRAIN);
- case LINE_MODE_PUSH_PULL:
+ case PIN_CONFIG_DRIVE_PUSH_PULL:
return regmap_update_bits(mgpio->rmap, GPIO_REG_ADDR(offset),
MAX77620_CNFG_GPIO_DRV_MASK,
MAX77620_CNFG_GPIO_DRV_PUSHPULL);
+ case PIN_CONFIG_INPUT_DEBOUNCE:
+ return max77620_gpio_set_debounce(mgpio, offset,
+ pinconf_to_config_argument(config));
default:
break;
}
mgpio->gpio_chip.direction_input = max77620_gpio_dir_input;
mgpio->gpio_chip.get = max77620_gpio_get;
mgpio->gpio_chip.direction_output = max77620_gpio_dir_output;
- mgpio->gpio_chip.set_debounce = max77620_gpio_set_debounce;
mgpio->gpio_chip.set = max77620_gpio_set;
- mgpio->gpio_chip.set_single_ended = max77620_gpio_set_single_ended;
+ mgpio->gpio_chip.set_config = max77620_gpio_set_config;
mgpio->gpio_chip.to_irq = max77620_gpio_to_irq;
mgpio->gpio_chip.ngpio = MAX77620_GPIO_NR;
mgpio->gpio_chip.can_sleep = 1;
static int men_z127_set_single_ended(struct gpio_chip *gc,
unsigned offset,
- enum single_ended_mode mode)
+ enum pin_config_param param)
{
struct men_z127_gpio *priv = gpiochip_get_data(gc);
u32 od_en;
- if (mode != LINE_MODE_OPEN_DRAIN &&
- mode != LINE_MODE_PUSH_PULL)
- return -ENOTSUPP;
-
spin_lock(&gc->bgpio_lock);
od_en = readl(priv->reg_base + MEN_Z127_ODER);
- if (mode == LINE_MODE_OPEN_DRAIN)
+ if (param == PIN_CONFIG_DRIVE_OPEN_DRAIN)
od_en |= BIT(offset);
else
- /* Implicitly LINE_MODE_PUSH_PULL */
+ /* Implicitly PIN_CONFIG_DRIVE_PUSH_PULL */
od_en &= ~BIT(offset);
writel(od_en, priv->reg_base + MEN_Z127_ODER);
return 0;
}
+static int men_z127_set_config(struct gpio_chip *gc, unsigned offset,
+ unsigned long config)
+{
+ enum pin_config_param param = pinconf_to_config_param(config);
+
+ switch (param) {
+ case PIN_CONFIG_DRIVE_OPEN_DRAIN:
+ case PIN_CONFIG_DRIVE_PUSH_PULL:
+ return men_z127_set_single_ended(gc, offset, param);
+
+ case PIN_CONFIG_INPUT_DEBOUNCE:
+ return men_z127_debounce(gc, offset,
+ pinconf_to_config_argument(config));
+
+ default:
+ break;
+ }
+
+ return -ENOTSUPP;
+}
+
static int men_z127_probe(struct mcb_device *mdev,
const struct mcb_device_id *id)
{
if (ret)
goto err_unmap;
- men_z127_gpio->gc.set_debounce = men_z127_debounce;
- men_z127_gpio->gc.set_single_ended = men_z127_set_single_ended;
+ men_z127_gpio->gc.set_config = men_z127_set_config;
ret = gpiochip_add_data(&men_z127_gpio->gc, men_z127_gpio);
if (ret) {
return 0;
}
+static int mrfld_gpio_set_config(struct gpio_chip *chip, unsigned int offset,
+ unsigned long config)
+{
+ u32 debounce;
+
+ if (pinconf_to_config_param(config) != PIN_CONFIG_INPUT_DEBOUNCE)
+ return -ENOTSUPP;
+
+ debounce = pinconf_to_config_argument(config);
+ return mrfld_gpio_set_debounce(chip, offset, debounce);
+}
+
static void mrfld_irq_ack(struct irq_data *d)
{
struct mrfld_gpio *priv = irq_data_get_irq_chip_data(d);
priv->chip.get = mrfld_gpio_get;
priv->chip.set = mrfld_gpio_set;
priv->chip.get_direction = mrfld_gpio_get_direction;
- priv->chip.set_debounce = mrfld_gpio_set_debounce;
+ priv->chip.set_config = mrfld_gpio_set_config;
priv->chip.base = gpio_base;
priv->chip.ngpio = MRFLD_NGPIO;
priv->chip.can_sleep = false;
return 0;
}
+static int omap_gpio_set_config(struct gpio_chip *chip, unsigned offset,
+ unsigned long config)
+{
+ u32 debounce;
+
+ if (pinconf_to_config_param(config) != PIN_CONFIG_INPUT_DEBOUNCE)
+ return -ENOTSUPP;
+
+ debounce = pinconf_to_config_argument(config);
+ return omap_gpio_debounce(chip, offset, debounce);
+}
+
static void omap_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
{
struct gpio_bank *bank;
bank->chip.direction_input = omap_gpio_input;
bank->chip.get = omap_gpio_get;
bank->chip.direction_output = omap_gpio_output;
- bank->chip.set_debounce = omap_gpio_debounce;
+ bank->chip.set_config = omap_gpio_set_config;
bank->chip.set = omap_gpio_set;
if (bank->is_mpuio) {
bank->chip.label = "mpuio";
return !(ret & BIT(pos));
}
-static int tc3589x_gpio_set_single_ended(struct gpio_chip *chip,
- unsigned int offset,
- enum single_ended_mode mode)
+static int tc3589x_gpio_set_config(struct gpio_chip *chip, unsigned int offset,
+ unsigned long config)
{
struct tc3589x_gpio *tc3589x_gpio = gpiochip_get_data(chip);
struct tc3589x *tc3589x = tc3589x_gpio->tc3589x;
unsigned int pos = offset % 8;
int ret;
- switch(mode) {
- case LINE_MODE_OPEN_DRAIN:
+ switch (pinconf_to_config_param(config)) {
+ case PIN_CONFIG_DRIVE_OPEN_DRAIN:
/* Set open drain mode */
ret = tc3589x_set_bits(tc3589x, odmreg, BIT(pos), 0);
if (ret)
return ret;
/* Enable open drain/source mode */
return tc3589x_set_bits(tc3589x, odereg, BIT(pos), BIT(pos));
- case LINE_MODE_OPEN_SOURCE:
+ case PIN_CONFIG_DRIVE_OPEN_SOURCE:
/* Set open source mode */
ret = tc3589x_set_bits(tc3589x, odmreg, BIT(pos), BIT(pos));
if (ret)
return ret;
/* Enable open drain/source mode */
return tc3589x_set_bits(tc3589x, odereg, BIT(pos), BIT(pos));
- case LINE_MODE_PUSH_PULL:
+ case PIN_CONFIG_DRIVE_PUSH_PULL:
/* Disable open drain/source mode */
return tc3589x_set_bits(tc3589x, odereg, BIT(pos), 0);
default:
.direction_output = tc3589x_gpio_direction_output,
.direction_input = tc3589x_gpio_direction_input,
.get_direction = tc3589x_gpio_get_direction,
- .set_single_ended = tc3589x_gpio_set_single_ended,
+ .set_config = tc3589x_gpio_set_config,
.can_sleep = true,
};
return 0;
}
+static int tegra_gpio_set_config(struct gpio_chip *chip, unsigned int offset,
+ unsigned long config)
+{
+ u32 debounce;
+
+ if (pinconf_to_config_param(config) != PIN_CONFIG_INPUT_DEBOUNCE)
+ return -ENOTSUPP;
+
+ debounce = pinconf_to_config_argument(config);
+ return tegra_gpio_set_debounce(chip, offset, debounce);
+}
+
static int tegra_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
{
struct tegra_gpio_info *tgi = gpiochip_get_data(chip);
platform_set_drvdata(pdev, tgi);
if (config->debounce_supported)
- tgi->gc.set_debounce = tegra_gpio_set_debounce;
+ tgi->gc.set_config = tegra_gpio_set_config;
tgi->bank_info = devm_kzalloc(&pdev->dev, tgi->bank_count *
sizeof(*tgi->bank_info), GFP_KERNEL);
return 0;
}
-static int tps65218_gpio_set_single_ended(struct gpio_chip *gc,
- unsigned offset,
- enum single_ended_mode mode)
+static int tps65218_gpio_set_config(struct gpio_chip *gc, unsigned offset,
+ unsigned long config)
{
struct tps65218_gpio *tps65218_gpio = gpiochip_get_data(gc);
struct tps65218 *tps65218 = tps65218_gpio->tps65218;
+ enum pin_config_param param = pinconf_to_config_param(config);
switch (offset) {
case 0:
case 2:
/* GPO1 is hardwired to be open drain */
- if (mode == LINE_MODE_OPEN_DRAIN)
+ if (param == PIN_CONFIG_DRIVE_OPEN_DRAIN)
return 0;
return -ENOTSUPP;
case 1:
/* GPO2 is push-pull by default, can be set as open drain. */
- if (mode == LINE_MODE_OPEN_DRAIN)
+ if (param == PIN_CONFIG_DRIVE_OPEN_DRAIN)
return tps65218_clear_bits(tps65218,
TPS65218_REG_CONFIG1,
TPS65218_CONFIG1_GPO2_BUF,
TPS65218_PROTECT_L1);
- if (mode == LINE_MODE_PUSH_PULL)
+ if (param == PIN_CONFIG_DRIVE_PUSH_PULL)
return tps65218_set_bits(tps65218,
TPS65218_REG_CONFIG1,
TPS65218_CONFIG1_GPO2_BUF,
.direction_input = tps65218_gpio_input,
.get = tps65218_gpio_get,
.set = tps65218_gpio_set,
- .set_single_ended = tps65218_gpio_set_single_ended,
+ .set_config = tps65218_gpio_set_config,
.can_sleep = true,
.ngpio = 3,
.base = -1,
return 0;
}
-static int vx855gpio_set_single_ended(struct gpio_chip *gpio,
- unsigned int nr,
- enum single_ended_mode mode)
+static int vx855gpio_set_config(struct gpio_chip *gpio, unsigned int nr,
+ unsigned long config)
{
+ enum pin_config_param param = pinconf_to_config_param(config);
+
/* The GPI cannot be single-ended */
if (nr < NR_VX855_GPI)
return -EINVAL;
/* The GPO's are push-pull */
if (nr < NR_VX855_GPInO) {
- if (mode != LINE_MODE_PUSH_PULL)
+ if (param != PIN_CONFIG_DRIVE_PUSH_PULL)
return -ENOTSUPP;
return 0;
}
/* The GPIO's are open drain */
- if (mode != LINE_MODE_OPEN_DRAIN)
+ if (param != PIN_CONFIG_DRIVE_OPEN_DRAIN)
return -ENOTSUPP;
return 0;
c->direction_output = vx855gpio_direction_output;
c->get = vx855gpio_get;
c->set = vx855gpio_set;
- c->set_single_ended = vx855gpio_set_single_ended;
+ c->set_config = vx855gpio_set_config,
c->dbg_show = NULL;
c->base = 0;
c->ngpio = NR_VX855_GP;
regmap_update_bits(wg->regmap, to_reg(gpio, CTRL_OUT), 1, 0);
}
-static int wcove_gpio_set_single_ended(struct gpio_chip *chip,
- unsigned int gpio,
- enum single_ended_mode mode)
+static int wcove_gpio_set_config(struct gpio_chip *chip, unsigned int gpio,
+ unsigned long config)
{
struct wcove_gpio *wg = gpiochip_get_data(chip);
- switch (mode) {
- case LINE_MODE_OPEN_DRAIN:
+ switch (pinconf_to_config_param(config)) {
+ case PIN_CONFIG_DRIVE_OPEN_DRAIN:
return regmap_update_bits(wg->regmap, to_reg(gpio, CTRL_OUT),
CTLO_DRV_MASK, CTLO_DRV_OD);
- case LINE_MODE_PUSH_PULL:
+ case PIN_CONFIG_DRIVE_PUSH_PULL:
return regmap_update_bits(wg->regmap, to_reg(gpio, CTRL_OUT),
CTLO_DRV_MASK, CTLO_DRV_CMOS);
default:
wg->chip.get_direction = wcove_gpio_get_direction;
wg->chip.get = wcove_gpio_get;
wg->chip.set = wcove_gpio_set;
- wg->chip.set_single_ended = wcove_gpio_set_single_ended,
+ wg->chip.set_config = wcove_gpio_set_config,
wg->chip.base = -1;
wg->chip.ngpio = WCOVE_VGPIO_NUM;
wg->chip.can_sleep = true;
WM831X_IRQ_GPIO_1 + offset);
}
-static int wm831x_gpio_set_debounce(struct gpio_chip *chip, unsigned offset,
+static int wm831x_gpio_set_debounce(struct wm831x *wm831x, unsigned offset,
unsigned debounce)
{
- struct wm831x_gpio *wm831x_gpio = gpiochip_get_data(chip);
- struct wm831x *wm831x = wm831x_gpio->wm831x;
int reg = WM831X_GPIO1_CONTROL + offset;
int ret, fn;
return wm831x_set_bits(wm831x, reg, WM831X_GPN_FN_MASK, fn);
}
-static int wm831x_set_single_ended(struct gpio_chip *chip,
- unsigned int offset,
- enum single_ended_mode mode)
+static int wm831x_set_config(struct gpio_chip *chip, unsigned int offset,
+ unsigned long config)
{
struct wm831x_gpio *wm831x_gpio = gpiochip_get_data(chip);
struct wm831x *wm831x = wm831x_gpio->wm831x;
int reg = WM831X_GPIO1_CONTROL + offset;
- switch (mode) {
- case LINE_MODE_OPEN_DRAIN:
+ switch (pinconf_to_config_param(config)) {
+ case PIN_CONFIG_DRIVE_OPEN_DRAIN:
return wm831x_set_bits(wm831x, reg,
WM831X_GPN_OD_MASK, WM831X_GPN_OD);
- case LINE_MODE_PUSH_PULL:
+ case PIN_CONFIG_DRIVE_PUSH_PULL:
return wm831x_set_bits(wm831x, reg,
WM831X_GPN_OD_MASK, 0);
+ case PIN_CONFIG_INPUT_DEBOUNCE:
+ return wm831x_gpio_set_debounce(wm831x, offset,
+ pinconf_to_config_argument(config));
default:
break;
}
.direction_output = wm831x_gpio_direction_out,
.set = wm831x_gpio_set,
.to_irq = wm831x_gpio_to_irq,
- .set_debounce = wm831x_gpio_set_debounce,
- .set_single_ended = wm831x_set_single_ended,
+ .set_config = wm831x_set_config,
.dbg_show = wm831x_gpio_dbg_show,
.can_sleep = true,
};
wm8994_set_bits(wm8994, WM8994_GPIO_1 + offset, WM8994_GPN_LVL, value);
}
-static int wm8994_gpio_set_single_ended(struct gpio_chip *chip,
- unsigned int offset,
- enum single_ended_mode mode)
+static int wm8994_gpio_set_config(struct gpio_chip *chip, unsigned int offset,
+ unsigned long config)
{
struct wm8994_gpio *wm8994_gpio = gpiochip_get_data(chip);
struct wm8994 *wm8994 = wm8994_gpio->wm8994;
- switch (mode) {
- case LINE_MODE_OPEN_DRAIN:
+ switch (pinconf_to_config_param(config)) {
+ case PIN_CONFIG_DRIVE_OPEN_DRAIN:
return wm8994_set_bits(wm8994, WM8994_GPIO_1 + offset,
WM8994_GPN_OP_CFG_MASK,
WM8994_GPN_OP_CFG);
- case LINE_MODE_PUSH_PULL:
+ case PIN_CONFIG_DRIVE_PUSH_PULL:
return wm8994_set_bits(wm8994, WM8994_GPIO_1 + offset,
WM8994_GPN_OP_CFG_MASK, 0);
default:
.get = wm8994_gpio_get,
.direction_output = wm8994_gpio_direction_out,
.set = wm8994_gpio_set,
- .set_single_ended = wm8994_gpio_set_single_ended,
+ .set_config = wm8994_gpio_set_config,
.to_irq = wm8994_gpio_to_irq,
.dbg_show = wm8994_gpio_dbg_show,
.can_sleep = true,
}
EXPORT_SYMBOL_GPL(gpiochip_generic_free);
+/**
+ * gpiochip_generic_config() - apply configuration for a pin
+ * @chip: the gpiochip owning the GPIO
+ * @offset: the offset of the GPIO to apply the configuration
+ * @config: the configuration to be applied
+ */
+int gpiochip_generic_config(struct gpio_chip *chip, unsigned offset,
+ unsigned long config)
+{
+ return pinctrl_gpio_set_config(chip->gpiodev->base + offset, config);
+}
+EXPORT_SYMBOL_GPL(gpiochip_generic_config);
+
#ifdef CONFIG_PINCTRL
/**
}
EXPORT_SYMBOL_GPL(gpiod_direction_input);
+static int gpio_set_drive_single_ended(struct gpio_chip *gc, unsigned offset,
+ enum pin_config_param mode)
+{
+ unsigned long config = { PIN_CONF_PACKED(mode, 0) };
+
+ return gc->set_config ? gc->set_config(gc, offset, config) : -ENOTSUPP;
+}
+
static int _gpiod_direction_output_raw(struct gpio_desc *desc, int value)
{
struct gpio_chip *gc = desc->gdev->chip;
if (test_bit(FLAG_OPEN_DRAIN, &desc->flags)) {
/* First see if we can enable open drain in hardware */
- if (gc->set_single_ended) {
- ret = gc->set_single_ended(gc, gpio_chip_hwgpio(desc),
- LINE_MODE_OPEN_DRAIN);
- if (!ret)
- goto set_output_value;
- }
+ ret = gpio_set_drive_single_ended(gc, gpio_chip_hwgpio(desc),
+ PIN_CONFIG_DRIVE_OPEN_DRAIN);
+ if (!ret)
+ goto set_output_value;
/* Emulate open drain by not actively driving the line high */
if (val)
return gpiod_direction_input(desc);
}
else if (test_bit(FLAG_OPEN_SOURCE, &desc->flags)) {
- if (gc->set_single_ended) {
- ret = gc->set_single_ended(gc, gpio_chip_hwgpio(desc),
- LINE_MODE_OPEN_SOURCE);
- if (!ret)
- goto set_output_value;
- }
+ ret = gpio_set_drive_single_ended(gc, gpio_chip_hwgpio(desc),
+ PIN_CONFIG_DRIVE_OPEN_SOURCE);
+ if (!ret)
+ goto set_output_value;
/* Emulate open source by not actively driving the line low */
if (!val)
return gpiod_direction_input(desc);
} else {
- /* Make sure to disable open drain/source hardware, if any */
- if (gc->set_single_ended)
- gc->set_single_ended(gc,
- gpio_chip_hwgpio(desc),
- LINE_MODE_PUSH_PULL);
+ gpio_set_drive_single_ended(gc, gpio_chip_hwgpio(desc),
+ PIN_CONFIG_DRIVE_PUSH_PULL);
}
set_output_value:
int gpiod_set_debounce(struct gpio_desc *desc, unsigned debounce)
{
struct gpio_chip *chip;
+ unsigned long config;
VALIDATE_DESC(desc);
chip = desc->gdev->chip;
- if (!chip->set || !chip->set_debounce) {
+ if (!chip->set || !chip->set_config) {
gpiod_dbg(desc,
- "%s: missing set() or set_debounce() operations\n",
+ "%s: missing set() or set_config() operations\n",
__func__);
return -ENOTSUPP;
}
- return chip->set_debounce(chip, gpio_chip_hwgpio(desc), debounce);
+ config = pinconf_to_config_packed(PIN_CONFIG_INPUT_DEBOUNCE, debounce);
+ return chip->set_config(chip, gpio_chip_hwgpio(desc), config);
}
EXPORT_SYMBOL_GPL(gpiod_set_debounce);
return 0;
}
+static int mtk_gpio_set_config(struct gpio_chip *chip, unsigned offset,
+ unsigned long config)
+{
+ u32 debounce;
+
+ if (pinconf_to_config_param(config) != PIN_CONFIG_INPUT_DEBOUNCE)
+ return -ENOTSUPP;
+
+ debounce = pinconf_to_config_argument(config);
+ return mtk_gpio_set_debounce(chip, offset, debounce);
+}
+
static const struct gpio_chip mtk_gpio_chip = {
.owner = THIS_MODULE,
.request = gpiochip_generic_request,
.get = mtk_gpio_get,
.set = mtk_gpio_set,
.to_irq = mtk_gpio_to_irq,
- .set_debounce = mtk_gpio_set_debounce,
+ .set_config = mtk_gpio_set_config,
.of_gpio_n_cells = 2,
};
return ret;
}
+static int amd_gpio_set_config(struct gpio_chip *gc, unsigned offset,
+ unsigned long config)
+{
+ u32 debounce;
+
+ if (pinconf_to_config_param(config) != PIN_CONFIG_INPUT_DEBOUNCE)
+ return -ENOTSUPP;
+
+ debounce = pinconf_to_config_argument(config);
+ return amd_gpio_set_debounce(gc, offset, debounce);
+}
+
#ifdef CONFIG_DEBUG_FS
static void amd_gpio_dbg_show(struct seq_file *s, struct gpio_chip *gc)
{
gpio_dev->gc.direction_output = amd_gpio_direction_output;
gpio_dev->gc.get = amd_gpio_get_value;
gpio_dev->gc.set = amd_gpio_set_value;
- gpio_dev->gc.set_debounce = amd_gpio_set_debounce;
+ gpio_dev->gc.set_config = amd_gpio_set_config;
gpio_dev->gc.dbg_show = amd_gpio_dbg_show;
gpio_dev->gc.base = 0;
return !!(value & BIT(offset));
}
-static int sx150x_gpio_set_single_ended(struct gpio_chip *chip,
- unsigned int offset,
- enum single_ended_mode mode)
-{
- struct sx150x_pinctrl *pctl = gpiochip_get_data(chip);
- int ret;
-
- switch (mode) {
- case LINE_MODE_PUSH_PULL:
- if (pctl->data->model != SX150X_789 ||
- sx150x_pin_is_oscio(pctl, offset))
- return 0;
-
- ret = regmap_write_bits(pctl->regmap,
- pctl->data->pri.x789.reg_drain,
- BIT(offset), 0);
- break;
-
- case LINE_MODE_OPEN_DRAIN:
- if (pctl->data->model != SX150X_789 ||
- sx150x_pin_is_oscio(pctl, offset))
- return -ENOTSUPP;
-
- ret = regmap_write_bits(pctl->regmap,
- pctl->data->pri.x789.reg_drain,
- BIT(offset), BIT(offset));
- break;
- default:
- ret = -ENOTSUPP;
- break;
- }
-
- return ret;
-}
-
static int __sx150x_gpio_set(struct sx150x_pinctrl *pctl, unsigned int offset,
int value)
{
break;
case PIN_CONFIG_DRIVE_OPEN_DRAIN:
- ret = sx150x_gpio_set_single_ended(&pctl->gpio,
- pin, LINE_MODE_OPEN_DRAIN);
+ if (pctl->data->model != SX150X_789 ||
+ sx150x_pin_is_oscio(pctl, pin))
+ return -ENOTSUPP;
+
+ ret = regmap_write_bits(pctl->regmap,
+ pctl->data->pri.x789.reg_drain,
+ BIT(pin), BIT(pin));
if (ret < 0)
return ret;
break;
case PIN_CONFIG_DRIVE_PUSH_PULL:
- ret = sx150x_gpio_set_single_ended(&pctl->gpio,
- pin, LINE_MODE_PUSH_PULL);
+ if (pctl->data->model != SX150X_789 ||
+ sx150x_pin_is_oscio(pctl, pin))
+ return 0;
+
+ ret = regmap_write_bits(pctl->regmap,
+ pctl->data->pri.x789.reg_drain,
+ BIT(pin), 0);
if (ret < 0)
return ret;
pctl->gpio.direction_output = sx150x_gpio_direction_output;
pctl->gpio.get = sx150x_gpio_get;
pctl->gpio.set = sx150x_gpio_set;
- pctl->gpio.set_single_ended = sx150x_gpio_set_single_ended;
+ pctl->gpio.set_config = gpiochip_generic_config;
pctl->gpio.parent = dev;
#ifdef CONFIG_OF_GPIO
pctl->gpio.of_node = dev->of_node;
gb_gpio_set_value_operation(ggc, (u8)offset, !!value);
}
-static int gb_gpio_set_debounce(struct gpio_chip *chip, unsigned offset,
- unsigned debounce)
+static int gb_gpio_set_config(struct gpio_chip *chip, unsigned offset,
+ unsigned long config)
{
struct gb_gpio_controller *ggc = gpio_chip_to_gb_gpio_controller(chip);
- u16 usec;
+ u32 debounce;
+ if (pinconf_to_config_param(config) != PIN_CONFIG_INPUT_DEBOUNCE)
+ return -ENOTSUPP;
+
+ debounce = pinconf_to_config_argument(config);
if (debounce > U16_MAX)
return -EINVAL;
- usec = (u16)debounce;
- return gb_gpio_set_debounce_operation(ggc, (u8)offset, usec);
+ return gb_gpio_set_debounce_operation(ggc, (u8)offset, (u16)debounce);
}
static int gb_gpio_controller_setup(struct gb_gpio_controller *ggc)
gpio->direction_output = gb_gpio_direction_output;
gpio->get = gb_gpio_get;
gpio->set = gb_gpio_set;
- gpio->set_debounce = gb_gpio_set_debounce;
+ gpio->set_config = gb_gpio_set_config;
gpio->to_irq = gb_gpio_to_irq;
gpio->base = -1; /* Allocate base dynamically */
gpio->ngpio = ggc->line_max + 1;
return 0;
}
-static int cp210x_gpio_set_single_ended(struct gpio_chip *gc, unsigned int gpio,
- enum single_ended_mode mode)
+static int cp210x_gpio_set_config(struct gpio_chip *gc, unsigned int gpio,
+ unsigned long config)
{
struct usb_serial *serial = gpiochip_get_data(gc);
struct cp210x_serial_private *priv = usb_get_serial_data(serial);
+ enum pin_config_param param = pinconf_to_config_param(config);
/* Succeed only if in correct mode (this can't be set at runtime) */
- if ((mode == LINE_MODE_PUSH_PULL) && (priv->gpio_mode & BIT(gpio)))
+ if ((param == PIN_CONFIG_DRIVE_PUSH_PULL) &&
+ (priv->gpio_mode & BIT(gpio)))
return 0;
- if ((mode == LINE_MODE_OPEN_DRAIN) && !(priv->gpio_mode & BIT(gpio)))
+ if ((param == PIN_CONFIG_DRIVE_OPEN_DRAIN) &&
+ !(priv->gpio_mode & BIT(gpio)))
return 0;
return -ENOTSUPP;
priv->gc.direction_output = cp210x_gpio_direction_output;
priv->gc.get = cp210x_gpio_get;
priv->gc.set = cp210x_gpio_set;
- priv->gc.set_single_ended = cp210x_gpio_set_single_ended;
+ priv->gc.set_config = cp210x_gpio_set_config;
priv->gc.owner = THIS_MODULE;
priv->gc.parent = &serial->interface->dev;
priv->gc.base = -1;
#include <linux/irqdomain.h>
#include <linux/lockdep.h>
#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinconf-generic.h>
struct gpio_desc;
struct of_phandle_args;
#ifdef CONFIG_GPIOLIB
-/**
- * enum single_ended_mode - mode for single ended operation
- * @LINE_MODE_PUSH_PULL: normal mode for a GPIO line, drive actively high/low
- * @LINE_MODE_OPEN_DRAIN: set line to be open drain
- * @LINE_MODE_OPEN_SOURCE: set line to be open source
- */
-enum single_ended_mode {
- LINE_MODE_PUSH_PULL,
- LINE_MODE_OPEN_DRAIN,
- LINE_MODE_OPEN_SOURCE,
-};
-
/**
* struct gpio_chip - abstract a GPIO controller
* @label: a functional name for the GPIO device, such as a part
* @get: returns value for signal "offset", 0=low, 1=high, or negative error
* @set: assigns output value for signal "offset"
* @set_multiple: assigns output values for multiple signals defined by "mask"
- * @set_debounce: optional hook for setting debounce time for specified gpio in
- * interrupt triggered gpio chips
- * @set_single_ended: optional hook for setting a line as open drain, open
- * source, or non-single ended (restore from open drain/source to normal
- * push-pull mode) this should be implemented if the hardware supports
- * open drain or open source settings. The GPIOlib will otherwise try
- * to emulate open drain/source by not actively driving lines high/low
- * if a consumer request this. The driver may return -ENOTSUPP if e.g.
- * it supports just open drain but not open source and is called
- * with LINE_MODE_OPEN_SOURCE as mode argument.
+ * @set_config: optional hook for all kinds of settings. Uses the same
+ * packed config format as generic pinconf.
* @to_irq: optional hook supporting non-static gpio_to_irq() mappings;
* implementation may not sleep
* @dbg_show: optional routine to show contents in debugfs; default code
void (*set_multiple)(struct gpio_chip *chip,
unsigned long *mask,
unsigned long *bits);
- int (*set_debounce)(struct gpio_chip *chip,
- unsigned offset,
- unsigned debounce);
- int (*set_single_ended)(struct gpio_chip *chip,
- unsigned offset,
- enum single_ended_mode mode);
-
+ int (*set_config)(struct gpio_chip *chip,
+ unsigned offset,
+ unsigned long config);
int (*to_irq)(struct gpio_chip *chip,
unsigned offset);
int gpiochip_generic_request(struct gpio_chip *chip, unsigned offset);
void gpiochip_generic_free(struct gpio_chip *chip, unsigned offset);
+int gpiochip_generic_config(struct gpio_chip *chip, unsigned offset,
+ unsigned long config);
#ifdef CONFIG_PINCTRL
#ifndef __LINUX_PINCTRL_PINCONF_GENERIC_H
#define __LINUX_PINCTRL_PINCONF_GENERIC_H
-/*
- * You shouldn't even be able to compile with these enums etc unless you're
- * using generic pin config. That is why this is defined out.
- */
-#ifdef CONFIG_GENERIC_PINCONF
-
/**
* enum pin_config_param - possible pin configuration parameters
* @PIN_CONFIG_BIAS_BUS_HOLD: the pin will be set to weakly latch so that it
PIN_CONFIG_MAX = 0xFF,
};
-#ifdef CONFIG_DEBUG_FS
-#define PCONFDUMP(a, b, c, d) { .param = a, .display = b, .format = c, \
- .has_arg = d }
-
-struct pin_config_item {
- const enum pin_config_param param;
- const char * const display;
- const char * const format;
- bool has_arg;
-};
-#endif /* CONFIG_DEBUG_FS */
-
/*
* Helpful configuration macro to be used in tables etc.
*/
return PIN_CONF_PACKED(param, argument);
}
+#ifdef CONFIG_GENERIC_PINCONF
+
+#ifdef CONFIG_DEBUG_FS
+#define PCONFDUMP(a, b, c, d) { \
+ .param = a, .display = b, .format = c, .has_arg = d \
+ }
+
+struct pin_config_item {
+ const enum pin_config_param param;
+ const char * const display;
+ const char * const format;
+ bool has_arg;
+};
+#endif /* CONFIG_DEBUG_FS */
+
#ifdef CONFIG_OF
#include <linux/device.h>
projects / linux-2.6-block.git / commitdiff