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authorJens Axboe <axboe@kernel.dk>2018-02-05 12:55:38 -0700
committerJens Axboe <axboe@kernel.dk>2018-02-05 12:55:38 -0700
commit9e05c864993c5442227f83ae1694a737d7a102ed (patch)
treee35b60bb3c0c179f147e9acaad5444f1e5d9117e /drivers/gpio/gpiolib-acpi.c
parent3c15f3f545afa320c5e3822825a9a53c664776b6 (diff)
parent35277995e17919ab838beae765f440674e8576eb (diff)
Merge branch 'master' into test
* master: (688 commits) dt-bindings: mailbox: qcom: Document the APCS clock binding mailbox: qcom: Create APCS child device for clock controller mailbox: qcom: Convert APCS IPC driver to use regmap KVM/SVM: Allow direct access to MSR_IA32_SPEC_CTRL KVM/VMX: Allow direct access to MSR_IA32_SPEC_CTRL KVM/VMX: Emulate MSR_IA32_ARCH_CAPABILITIES KVM/x86: Add IBPB support KVM/x86: Update the reverse_cpuid list to include CPUID_7_EDX pinctrl: remove include file from <linux/device.h> firmware: dmi: handle missing DMI data gracefully firmware: dmi_scan: Fix handling of empty DMI strings firmware: dmi_scan: Drop dmi_initialized firmware: dmi: Optimize dmi_matches Revert "defer call to mem_cgroup_sk_alloc()" soreuseport: fix mem leak in reuseport_add_sock() net: qlge: use memmove instead of skb_copy_to_linear_data net: qed: use correct strncpy() size net: cxgb4: avoid memcpy beyond end of source buffer cls_u32: add missing RCU annotation. r8152: set rx mode early when linking on ...
Diffstat (limited to 'drivers/gpio/gpiolib-acpi.c')
-rw-r--r--drivers/gpio/gpiolib-acpi.c75
1 files changed, 2 insertions, 73 deletions
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index 0ecffd172a80..e2232cbcec8b 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");
@@ -871,12 +810,6 @@ 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;
@@ -1009,11 +942,7 @@ 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;