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eeepc-laptop: make input device a child of the platform device

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Sysfs showed the ehotk input device as a "virtual" device - lies!
The input device is provided by a physical device, the eeepc platform.

This requires that we move the creation of the input device to come
after platform device is created.  Input initialization is moved from
ehotk_check() [sic] to a new function called eeepc_input_init().  This
brings the input device into line with the other eeepc-laptop devices.

Also, refuse to load if we fail to register the input device.

Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Alan Jenkins 2009-08-28 12:56:36 +00:00 committed by Len Brown
parent 1e7798547f
commit f2a9d5e8a6
1 changed files with 41 additions and 29 deletions
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70
drivers/platform/x86/eeepc-laptop.c
View file

@ -579,7 +579,6 @@ static void cmsg_quirks(void)
static int eeepc_hotk_check(void)
{
const struct key_entry *key;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
int result;
@ -604,31 +603,6 @@ static int eeepc_hotk_check(void)
pr_info("Get control methods supported: 0x%x\n",
ehotk->cm_supported);
}
ehotk->inputdev = input_allocate_device();
if (!ehotk->inputdev) {
pr_info("Unable to allocate input device\n");
return 0;
}
ehotk->inputdev->name = "Asus EeePC extra buttons";
ehotk->inputdev->phys = EEEPC_HOTK_FILE "/input0";
ehotk->inputdev->id.bustype = BUS_HOST;
ehotk->inputdev->getkeycode = eeepc_getkeycode;
ehotk->inputdev->setkeycode = eeepc_setkeycode;
for (key = eeepc_keymap; key->type != KE_END; key++) {
switch (key->type) {
case KE_KEY:
set_bit(EV_KEY, ehotk->inputdev->evbit);
set_bit(key->keycode, ehotk->inputdev->keybit);
break;
}
}
result = input_register_device(ehotk->inputdev);
if (result) {
pr_info("Unable to register input device\n");
input_free_device(ehotk->inputdev);
return 0;
}
} else {
pr_err("Hotkey device not present, aborting\n");
return -EINVAL;
@ -1142,6 +1116,40 @@ static int eeepc_hwmon_init(struct device *dev)
return result;
}
static int eeepc_input_init(struct device *dev)
{
const struct key_entry *key;
int result;
ehotk->inputdev = input_allocate_device();
if (!ehotk->inputdev) {
pr_info("Unable to allocate input device\n");
return -ENOMEM;
}
ehotk->inputdev->name = "Asus EeePC extra buttons";
ehotk->inputdev->dev.parent = dev;
ehotk->inputdev->phys = EEEPC_HOTK_FILE "/input0";
ehotk->inputdev->id.bustype = BUS_HOST;
ehotk->inputdev->getkeycode = eeepc_getkeycode;
ehotk->inputdev->setkeycode = eeepc_setkeycode;
for (key = eeepc_keymap; key->type != KE_END; key++) {
switch (key->type) {
case KE_KEY:
set_bit(EV_KEY, ehotk->inputdev->evbit);
set_bit(key->keycode, ehotk->inputdev->keybit);
break;
}
}
result = input_register_device(ehotk->inputdev);
if (result) {
pr_info("Unable to register input device\n");
input_free_device(ehotk->inputdev);
return result;
}
return 0;
}
static int eeepc_hotk_add(struct acpi_device *device)
{
struct device *dev;
@ -1162,7 +1170,7 @@ static int eeepc_hotk_add(struct acpi_device *device)
result = eeepc_hotk_check();
if (result)
goto fail_check;
goto fail_platform_driver;
eeepc_enable_camera();
/* Register platform stuff */
@ -1192,6 +1200,10 @@ static int eeepc_hotk_add(struct acpi_device *device)
pr_info("Backlight controlled by ACPI video "
"driver\n");
result = eeepc_input_init(dev);
if (result)
goto fail_input;
result = eeepc_hwmon_init(dev);
if (result)
goto fail_hwmon;
@ -1205,6 +1217,8 @@ static int eeepc_hotk_add(struct acpi_device *device)
fail_rfkill:
eeepc_hwmon_exit();
fail_hwmon:
eeepc_input_exit();
fail_input:
eeepc_backlight_exit();
fail_backlight:
sysfs_remove_group(&platform_device->dev.kobj,
@ -1216,8 +1230,6 @@ fail_platform_device2:
fail_platform_device1:
platform_driver_unregister(&platform_driver);
fail_platform_driver:
eeepc_input_exit();
fail_check:
kfree(ehotk);
return result;