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extcon: int3496: Add support for binding to plain platform devices

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On some X86 Android tablets the DSTD lack the INT3496 ACPI device,
while also not handling micro USB port ID pin events inside the DSDT
(instead the forked factory image kernel has things hardcoded).

The new drivers/platform/x86/x86-android-tablets.c module manually
instantiates an intel-int3496 device for these tablets.

Add support to the extcon-intel-int3496 driver to bind to devices
without an ACPI companion and export a normal platform_device
modalias for automatic module loading.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
This commit is contained in:
Hans de Goede 2021-12-28 18:01:40 +01:00 committed by Chanwoo Choi
parent 12514f668c
commit c26aef6d39
1 changed files with 13 additions and 4 deletions
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17
drivers/extcon/extcon-intel-int3496.c
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@ -91,10 +91,12 @@ static int int3496_probe(struct platform_device *pdev)
struct int3496_data *data;
int ret;
ret = devm_acpi_dev_add_driver_gpios(dev, acpi_int3496_default_gpios);
if (ret) {
dev_err(dev, "can't add GPIO ACPI mapping\n");
return ret;
if (has_acpi_companion(dev)) {
ret = devm_acpi_dev_add_driver_gpios(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);
@ -165,12 +167,19 @@ static const struct acpi_device_id int3496_acpi_match[] = {
};
MODULE_DEVICE_TABLE(acpi, int3496_acpi_match);
static const struct platform_device_id int3496_ids[] = {
{ .name = "intel-int3496" },
{},
};
MODULE_DEVICE_TABLE(platform, int3496_ids);
static struct platform_driver int3496_driver = {
.driver = {
.name = "intel-int3496",
.acpi_match_table = int3496_acpi_match,
},
.probe = int3496_probe,
.id_table = int3496_ids,
};
module_platform_driver(int3496_driver);