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platform/x86: ayaneo-ec: Add Ayaneo Embedded Controller platform driver

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Recent Ayaneo devices feature an ACPI mapped Embedded Controller (EC)
with standard addresses across models that provides access to fan
speed, fan control, battery charge limits, and controller power
controls. Introduce a new driver stub that will handle these driver
features.

Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev>
Link: https://patch.msgid.link/20251119174505.597218-2-lkml@antheas.dev
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
This commit is contained in:
Antheas Kapenekakis 2025-11-19 18:45:00 +01:00 committed by Ilpo Järvinen
parent a9b0869720
commit 70a4a815d9
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GPG Key ID: 59AC4F6153E5CE31
4 changed files with 109 additions and 0 deletions
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6
MAINTAINERS
View File

@ -4187,6 +4187,12 @@ W: https://ez.analog.com/linux-software-drivers
F: Documentation/devicetree/bindings/pwm/adi,axi-pwmgen.yaml
F: drivers/pwm/pwm-axi-pwmgen.c
AYANEO PLATFORM EC DRIVER
M: Antheas Kapenekakis <lkml@antheas.dev>
L: platform-driver-x86@vger.kernel.org
S: Maintained
F: drivers/platform/x86/ayaneo-ec.c
AZ6007 DVB DRIVER
M: Mauro Carvalho Chehab <mchehab@kernel.org>
L: linux-media@vger.kernel.org

10
drivers/platform/x86/Kconfig
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@ -311,6 +311,16 @@ config ASUS_TF103C_DOCK
If you have an Asus TF103C tablet say Y or M here, for a generic x86
distro config say M here.
config AYANEO_EC
tristate "Ayaneo EC platform control"
depends on DMI
help
Enables support for the platform EC of Ayaneo devices. This
includes fan control, fan speed, charge limit, magic
module detection, and controller power control.
If you have an Ayaneo device, say Y or M here.
config MERAKI_MX100
tristate "Cisco Meraki MX100 Platform Driver"
depends on GPIOLIB

3
drivers/platform/x86/Makefile
View File

@ -39,6 +39,9 @@ obj-$(CONFIG_ASUS_TF103C_DOCK) += asus-tf103c-dock.o
obj-$(CONFIG_EEEPC_LAPTOP) += eeepc-laptop.o
obj-$(CONFIG_EEEPC_WMI) += eeepc-wmi.o
# Ayaneo
obj-$(CONFIG_AYANEO_EC) += ayaneo-ec.o
# Cisco/Meraki
obj-$(CONFIG_MERAKI_MX100) += meraki-mx100.o

90
drivers/platform/x86/ayaneo-ec.c Normal file
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@ -0,0 +1,90 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Platform driver for the Embedded Controller (EC) of Ayaneo devices. Handles
* hwmon (fan speed, fan control), battery charge limits, and magic module
* control (connected modules, controller disconnection).
*
* Copyright (C) 2025 Antheas Kapenekakis <lkml@antheas.dev>
*/
#include <linux/dmi.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/platform_device.h>
struct ayaneo_ec_quirk {
};
struct ayaneo_ec_platform_data {
struct platform_device *pdev;
struct ayaneo_ec_quirk *quirks;
};
static const struct ayaneo_ec_quirk quirk_ayaneo3 = {
};
static const struct dmi_system_id dmi_table[] = {
{
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR, "AYANEO"),
DMI_EXACT_MATCH(DMI_BOARD_NAME, "AYANEO 3"),
},
.driver_data = (void *)&quirk_ayaneo3,
},
{},
};
static int ayaneo_ec_probe(struct platform_device *pdev)
{
const struct dmi_system_id *dmi_entry;
struct ayaneo_ec_platform_data *data;
dmi_entry = dmi_first_match(dmi_table);
if (!dmi_entry)
return -ENODEV;
data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
data->pdev = pdev;
data->quirks = dmi_entry->driver_data;
platform_set_drvdata(pdev, data);
return 0;
}
static struct platform_driver ayaneo_platform_driver = {
.driver = {
.name = "ayaneo-ec",
},
.probe = ayaneo_ec_probe,
};
static struct platform_device *ayaneo_platform_device;
static int __init ayaneo_ec_init(void)
{
ayaneo_platform_device =
platform_create_bundle(&ayaneo_platform_driver,
ayaneo_ec_probe, NULL, 0, NULL, 0);
return PTR_ERR_OR_ZERO(ayaneo_platform_device);
}
static void __exit ayaneo_ec_exit(void)
{
platform_device_unregister(ayaneo_platform_device);
platform_driver_unregister(&ayaneo_platform_driver);
}
MODULE_DEVICE_TABLE(dmi, dmi_table);
module_init(ayaneo_ec_init);
module_exit(ayaneo_ec_exit);
MODULE_AUTHOR("Antheas Kapenekakis <lkml@antheas.dev>");
MODULE_DESCRIPTION("Ayaneo Embedded Controller (EC) platform features");
MODULE_LICENSE("GPL");