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-rw-r--r--drivers/gpio/gpiolib-acpi.c75
-rw-r--r--drivers/pinctrl/intel/pinctrl-cherryview.c59
2 files changed, 22 insertions, 112 deletions
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index eb4528c87c0b..b77c544bf7e2 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -58,58 +58,6 @@ static int acpi_gpiochip_find(struct gpio_chip *gc, void *data)
return ACPI_HANDLE(gc->parent) == data;
}
-#ifdef CONFIG_PINCTRL
-/**
- * acpi_gpiochip_pin_to_gpio_offset() - translates ACPI GPIO to Linux GPIO
- * @gdev: GPIO device
- * @pin: ACPI GPIO pin number from GpioIo/GpioInt resource
- *
- * Function takes ACPI GpioIo/GpioInt pin number as a parameter and
- * translates it to a corresponding offset suitable to be passed to a
- * GPIO controller driver.
- *
- * Typically the returned offset is same as @pin, but if the GPIO
- * controller uses pin controller and the mapping is not contiguous the
- * offset might be different.
- */
-static int acpi_gpiochip_pin_to_gpio_offset(struct gpio_device *gdev, int pin)
-{
- struct gpio_pin_range *pin_range;
-
- /* If there are no ranges in this chip, use 1:1 mapping */
- if (list_empty(&gdev->pin_ranges))
- return pin;
-
- list_for_each_entry(pin_range, &gdev->pin_ranges, node) {
- const struct pinctrl_gpio_range *range = &pin_range->range;
- int i;
-
- if (range->pins) {
- for (i = 0; i < range->npins; i++) {
- if (range->pins[i] == pin)
- return range->base + i - gdev->base;
- }
- } else {
- if (pin >= range->pin_base &&
- pin < range->pin_base + range->npins) {
- unsigned gpio_base;
-
- gpio_base = range->base - gdev->base;
- return gpio_base + pin - range->pin_base;
- }
- }
- }
-
- return -EINVAL;
-}
-#else
-static inline int acpi_gpiochip_pin_to_gpio_offset(struct gpio_device *gdev,
- int pin)
-{
- return pin;
-}
-#endif
-
/**
* acpi_get_gpiod() - Translate ACPI GPIO pin to GPIO descriptor usable with GPIO API
* @path: ACPI GPIO controller full path name, (e.g. "\\_SB.GPO1")
@@ -125,7 +73,6 @@ static struct gpio_desc *acpi_get_gpiod(char *path, int pin)
struct gpio_chip *chip;
acpi_handle handle;
acpi_status status;
- int offset;
status = acpi_get_handle(NULL, path, &handle);
if (ACPI_FAILURE(status))
@@ -135,11 +82,7 @@ static struct gpio_desc *acpi_get_gpiod(char *path, int pin)
if (!chip)
return ERR_PTR(-EPROBE_DEFER);
- offset = acpi_gpiochip_pin_to_gpio_offset(chip->gpiodev, pin);
- if (offset < 0)
- return ERR_PTR(offset);
-
- return gpiochip_get_desc(chip, offset);
+ return gpiochip_get_desc(chip, pin);
}
static irqreturn_t acpi_gpio_irq_handler(int irq, void *data)
@@ -216,10 +159,6 @@ static acpi_status acpi_gpiochip_request_interrupt(struct acpi_resource *ares,
if (!handler)
return AE_OK;
- pin = acpi_gpiochip_pin_to_gpio_offset(chip->gpiodev, pin);
- if (pin < 0)
- return AE_BAD_PARAMETER;
-
desc = gpiochip_request_own_desc(chip, pin, "ACPI:Event");
if (IS_ERR(desc)) {
dev_err(chip->parent, "Failed to request GPIO\n");
@@ -852,12 +791,6 @@ acpi_gpio_adr_space_handler(u32 function, acpi_physical_address address,
struct gpio_desc *desc;
bool found;
- pin = acpi_gpiochip_pin_to_gpio_offset(chip->gpiodev, pin);
- if (pin < 0) {
- status = AE_BAD_PARAMETER;
- goto out;
- }
-
mutex_lock(&achip->conn_lock);
found = false;
@@ -990,11 +923,7 @@ static struct gpio_desc *acpi_gpiochip_parse_own_gpio(
if (ret < 0)
return ERR_PTR(ret);
- ret = acpi_gpiochip_pin_to_gpio_offset(chip->gpiodev, gpios[0]);
- if (ret < 0)
- return ERR_PTR(ret);
-
- desc = gpiochip_get_desc(chip, ret);
+ desc = gpiochip_get_desc(chip, gpios[0]);
if (IS_ERR(desc))
return desc;
diff --git a/drivers/pinctrl/intel/pinctrl-cherryview.c b/drivers/pinctrl/intel/pinctrl-cherryview.c
index bdedb6325c72..aa6c9f569c2b 100644
--- a/drivers/pinctrl/intel/pinctrl-cherryview.c
+++ b/drivers/pinctrl/intel/pinctrl-cherryview.c
@@ -131,10 +131,8 @@ struct chv_gpio_pinrange {
* @ngroups: Number of groups
* @functions: All functions in this community
* @nfunctions: Number of functions
- * @ngpios: Number of GPIOs in this community
* @gpio_ranges: An array of GPIO ranges in this community
* @ngpio_ranges: Number of GPIO ranges
- * @ngpios: Total number of GPIOs in this community
* @nirqs: Total number of IRQs this community can generate
*/
struct chv_community {
@@ -147,7 +145,6 @@ struct chv_community {
size_t nfunctions;
const struct chv_gpio_pinrange *gpio_ranges;
size_t ngpio_ranges;
- size_t ngpios;
size_t nirqs;
acpi_adr_space_type acpi_space_id;
};
@@ -399,7 +396,6 @@ static const struct chv_community southwest_community = {
.nfunctions = ARRAY_SIZE(southwest_functions),
.gpio_ranges = southwest_gpio_ranges,
.ngpio_ranges = ARRAY_SIZE(southwest_gpio_ranges),
- .ngpios = ARRAY_SIZE(southwest_pins),
/*
* Southwest community can benerate GPIO interrupts only for the
* first 8 interrupts. The upper half (8-15) can only be used to
@@ -489,7 +485,6 @@ static const struct chv_community north_community = {
.npins = ARRAY_SIZE(north_pins),
.gpio_ranges = north_gpio_ranges,
.ngpio_ranges = ARRAY_SIZE(north_gpio_ranges),
- .ngpios = ARRAY_SIZE(north_pins),
/*
* North community can generate GPIO interrupts only for the first
* 8 interrupts. The upper half (8-15) can only be used to trigger
@@ -538,7 +533,6 @@ static const struct chv_community east_community = {
.npins = ARRAY_SIZE(east_pins),
.gpio_ranges = east_gpio_ranges,
.ngpio_ranges = ARRAY_SIZE(east_gpio_ranges),
- .ngpios = ARRAY_SIZE(east_pins),
.nirqs = 16,
.acpi_space_id = 0x93,
};
@@ -665,7 +659,6 @@ static const struct chv_community southeast_community = {
.nfunctions = ARRAY_SIZE(southeast_functions),
.gpio_ranges = southeast_gpio_ranges,
.ngpio_ranges = ARRAY_SIZE(southeast_gpio_ranges),
- .ngpios = ARRAY_SIZE(southeast_pins),
.nirqs = 16,
.acpi_space_id = 0x94,
};
@@ -1253,21 +1246,14 @@ static struct pinctrl_desc chv_pinctrl_desc = {
.owner = THIS_MODULE,
};
-static unsigned chv_gpio_offset_to_pin(struct chv_pinctrl *pctrl,
- unsigned offset)
-{
- return pctrl->community->pins[offset].number;
-}
-
static int chv_gpio_get(struct gpio_chip *chip, unsigned offset)
{
struct chv_pinctrl *pctrl = gpiochip_get_data(chip);
- int pin = chv_gpio_offset_to_pin(pctrl, offset);
unsigned long flags;
u32 ctrl0, cfg;
raw_spin_lock_irqsave(&chv_lock, flags);
- ctrl0 = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0));
+ ctrl0 = readl(chv_padreg(pctrl, offset, CHV_PADCTRL0));
raw_spin_unlock_irqrestore(&chv_lock, flags);
cfg = ctrl0 & CHV_PADCTRL0_GPIOCFG_MASK;
@@ -1281,14 +1267,13 @@ static int chv_gpio_get(struct gpio_chip *chip, unsigned offset)
static void chv_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
{
struct chv_pinctrl *pctrl = gpiochip_get_data(chip);
- unsigned pin = chv_gpio_offset_to_pin(pctrl, offset);
unsigned long flags;
void __iomem *reg;
u32 ctrl0;
raw_spin_lock_irqsave(&chv_lock, flags);
- reg = chv_padreg(pctrl, pin, CHV_PADCTRL0);
+ reg = chv_padreg(pctrl, offset, CHV_PADCTRL0);
ctrl0 = readl(reg);
if (value)
@@ -1304,12 +1289,11 @@ static void chv_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
static int chv_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
{
struct chv_pinctrl *pctrl = gpiochip_get_data(chip);
- unsigned pin = chv_gpio_offset_to_pin(pctrl, offset);
u32 ctrl0, direction;
unsigned long flags;
raw_spin_lock_irqsave(&chv_lock, flags);
- ctrl0 = readl(chv_padreg(pctrl, pin, CHV_PADCTRL0));
+ ctrl0 = readl(chv_padreg(pctrl, offset, CHV_PADCTRL0));
raw_spin_unlock_irqrestore(&chv_lock, flags);
direction = ctrl0 & CHV_PADCTRL0_GPIOCFG_MASK;
@@ -1345,7 +1329,7 @@ static void chv_gpio_irq_ack(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct chv_pinctrl *pctrl = gpiochip_get_data(gc);
- int pin = chv_gpio_offset_to_pin(pctrl, irqd_to_hwirq(d));
+ int pin = irqd_to_hwirq(d);
u32 intr_line;
raw_spin_lock(&chv_lock);
@@ -1362,7 +1346,7 @@ static void chv_gpio_irq_mask_unmask(struct irq_data *d, bool mask)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct chv_pinctrl *pctrl = gpiochip_get_data(gc);
- int pin = chv_gpio_offset_to_pin(pctrl, irqd_to_hwirq(d));
+ int pin = irqd_to_hwirq(d);
u32 value, intr_line;
unsigned long flags;
@@ -1407,8 +1391,7 @@ static unsigned chv_gpio_irq_startup(struct irq_data *d)
if (irqd_get_trigger_type(d) == IRQ_TYPE_NONE) {
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct chv_pinctrl *pctrl = gpiochip_get_data(gc);
- unsigned offset = irqd_to_hwirq(d);
- int pin = chv_gpio_offset_to_pin(pctrl, offset);
+ unsigned pin = irqd_to_hwirq(d);
irq_flow_handler_t handler;
unsigned long flags;
u32 intsel, value;
@@ -1426,7 +1409,7 @@ static unsigned chv_gpio_irq_startup(struct irq_data *d)
if (!pctrl->intr_lines[intsel]) {
irq_set_handler_locked(d, handler);
- pctrl->intr_lines[intsel] = offset;
+ pctrl->intr_lines[intsel] = pin;
}
raw_spin_unlock_irqrestore(&chv_lock, flags);
}
@@ -1439,8 +1422,7 @@ static int chv_gpio_irq_type(struct irq_data *d, unsigned type)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct chv_pinctrl *pctrl = gpiochip_get_data(gc);
- unsigned offset = irqd_to_hwirq(d);
- int pin = chv_gpio_offset_to_pin(pctrl, offset);
+ unsigned pin = irqd_to_hwirq(d);
unsigned long flags;
u32 value;
@@ -1486,7 +1468,7 @@ static int chv_gpio_irq_type(struct irq_data *d, unsigned type)
value &= CHV_PADCTRL0_INTSEL_MASK;
value >>= CHV_PADCTRL0_INTSEL_SHIFT;
- pctrl->intr_lines[value] = offset;
+ pctrl->intr_lines[value] = pin;
if (type & IRQ_TYPE_EDGE_BOTH)
irq_set_handler_locked(d, handle_edge_irq);
@@ -1576,12 +1558,12 @@ static int chv_gpio_probe(struct chv_pinctrl *pctrl, int irq)
const struct chv_gpio_pinrange *range;
struct gpio_chip *chip = &pctrl->chip;
bool need_valid_mask = !dmi_check_system(chv_no_valid_mask);
- int ret, i, offset;
- int irq_base;
+ const struct chv_community *community = pctrl->community;
+ int ret, i, irq_base;
*chip = chv_gpio_chip;
- chip->ngpio = pctrl->community->ngpios;
+ chip->ngpio = community->pins[community->npins - 1].number + 1;
chip->label = dev_name(pctrl->dev);
chip->parent = pctrl->dev;
chip->base = -1;
@@ -1593,30 +1575,29 @@ static int chv_gpio_probe(struct chv_pinctrl *pctrl, int irq)
return ret;
}
- for (i = 0, offset = 0; i < pctrl->community->ngpio_ranges; i++) {
- range = &pctrl->community->gpio_ranges[i];
- ret = gpiochip_add_pin_range(chip, dev_name(pctrl->dev), offset,
- range->base, range->npins);
+ for (i = 0; i < community->ngpio_ranges; i++) {
+ range = &community->gpio_ranges[i];
+ ret = gpiochip_add_pin_range(chip, dev_name(pctrl->dev),
+ range->base, range->base,
+ range->npins);
if (ret) {
dev_err(pctrl->dev, "failed to add GPIO pin range\n");
return ret;
}
-
- offset += range->npins;
}
/* Do not add GPIOs that can only generate GPEs to the IRQ domain */
- for (i = 0; i < pctrl->community->npins; i++) {
+ for (i = 0; i < community->npins; i++) {
const struct pinctrl_pin_desc *desc;
u32 intsel;
- desc = &pctrl->community->pins[i];
+ desc = &community->pins[i];
intsel = readl(chv_padreg(pctrl, desc->number, CHV_PADCTRL0));
intsel &= CHV_PADCTRL0_INTSEL_MASK;
intsel >>= CHV_PADCTRL0_INTSEL_SHIFT;
- if (need_valid_mask && intsel >= pctrl->community->nirqs)
+ if (need_valid_mask && intsel >= community->nirqs)
clear_bit(i, chip->irq.valid_mask);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-19 07:52:42 +0000