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Bluetooth: hci_intel: Add GPIO ACPI mapping table

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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: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Andy Shevchenko 2017-06-06 17:47:18 +03:00 committed by Marcel Holtmann
parent fda7057f4b
commit 4a59d433c9
1 changed files with 14 additions and 0 deletions
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14
drivers/bluetooth/hci_intel.c
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@ -1205,9 +1205,19 @@ static const struct dev_pm_ops intel_pm_ops = {
SET_RUNTIME_PM_OPS(intel_suspend_device, intel_resume_device, NULL)
};
static const struct acpi_gpio_params reset_gpios = { 0, 0, false };
static const struct acpi_gpio_params host_wake_gpios = { 1, 0, false };
static const struct acpi_gpio_mapping acpi_hci_intel_gpios[] = {
{ "reset-gpios", &reset_gpios, 1 },
{ "host-wake-gpios", &host_wake_gpios, 1 },
{ },
};
static int intel_probe(struct platform_device *pdev)
{
struct intel_device *idev;
int ret;
idev = devm_kzalloc(&pdev->dev, sizeof(*idev), GFP_KERNEL);
if (!idev)
@ -1217,6 +1227,10 @@ static int intel_probe(struct platform_device *pdev)
idev->pdev = pdev;
ret = devm_acpi_dev_add_driver_gpios(&pdev->dev, acpi_hci_intel_gpios);
if (ret)
dev_dbg(&pdev->dev, "Unable to add GPIO mapping table\n");
idev->reset = devm_gpiod_get(&pdev->dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(idev->reset)) {
dev_err(&pdev->dev, "Unable to retrieve gpio\n");