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@xxxxxxxxxxxxxxx>
---
drivers/bluetooth/hci_intel.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/drivers/bluetooth/hci_intel.c b/drivers/bluetooth/hci_intel.c
index fa5099986f1b..851bee82df2a 100644
--- a/drivers/bluetooth/hci_intel.c
+++ b/drivers/bluetooth/hci_intel.c
@@ -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");
--
2.11.0
--
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