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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2017-02-24 14:35:55 +0200
committerChanwoo Choi <cw00.choi@samsung.com>2017-03-22 18:29:46 +0900
commit8cb2cbae45ae46b1e1be16950670d5c5d4408474 (patch)
tree89c51bfb02568a4e3d749281fb6089bfb41677b2 /drivers/extcon/extcon-intel-int3496.c
parent90400c5884b89a5db232049721ef4dc1ab2f1f1c (diff)
extcon: int3496: Add GPIO ACPI mapping table
In order to make GPIO ACPI library stricter prepare users of gpiod_get_index() to correctly behave when there no mapping is provided by firmware. Here we add explicit mapping between _CRS GpioIo() resources and their names used in the driver. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Diffstat (limited to 'drivers/extcon/extcon-intel-int3496.c')
-rw-r--r--drivers/extcon/extcon-intel-int3496.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/extcon/extcon-intel-int3496.c b/drivers/extcon/extcon-intel-int3496.c
index 81713bf7487e..22a529eb1b1a 100644
--- a/drivers/extcon/extcon-intel-int3496.c
+++ b/drivers/extcon/extcon-intel-int3496.c
@@ -45,6 +45,17 @@ static const unsigned int int3496_cable[] = {
EXTCON_NONE,
};
+static const struct acpi_gpio_params id_gpios = { INT3496_GPIO_USB_ID, 0, false };
+static const struct acpi_gpio_params vbus_gpios = { INT3496_GPIO_VBUS_EN, 0, false };
+static const struct acpi_gpio_params mux_gpios = { INT3496_GPIO_USB_MUX, 0, false };
+
+static const struct acpi_gpio_mapping acpi_int3496_default_gpios[] = {
+ { "id-gpios", &id_gpios, 1 },
+ { "vbus-gpios", &vbus_gpios, 1 },
+ { "mux-gpios", &mux_gpios, 1 },
+ { },
+};
+
static void int3496_do_usb_id(struct work_struct *work)
{
struct int3496_data *data =
@@ -83,6 +94,13 @@ static int int3496_probe(struct platform_device *pdev)
struct int3496_data *data;
int ret;
+ ret = acpi_dev_add_driver_gpios(ACPI_COMPANION(dev),
+ acpi_int3496_default_gpios);
+ if (ret) {
+ dev_err(dev, "can't add GPIO ACPI mapping\n");
+ return ret;
+ }
+
data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
@@ -154,6 +172,8 @@ static int int3496_remove(struct platform_device *pdev)
devm_free_irq(&pdev->dev, data->usb_id_irq, data);
cancel_delayed_work_sync(&data->work);
+ acpi_dev_remove_driver_gpios(ACPI_COMPANION(&pdev->dev));
+
return 0;
}

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