From 6bb3e8064a856453848165c8a72e2af9d27c596c Mon Sep 17 00:00:00 2001 From: Kunyang_Fan Date: Wed, 16 Jun 2021 13:56:58 +0800 Subject: [PATCH] UBUNTU: ODM: mfd: Add support for IO functions of AAEON devices BugLink: https://bugs.launchpad.net/bugs/1929504 This adds the supports for multiple IO functions of the AAEON x86 devices and makes use of the WMI interface to control the these IO devices including: - GPIO - LED - Watchdog - HWMON It also adds the mfd child device drivers to support the above IO functions. Signed-off-by: Kunyang_Fan Review-by: Kai-Heng Feng Review-by: Chia-Lin Kao (AceLan) Signed-off-by: Chia-Lin Kao (AceLan) Acked-by: Stefan Bader Acked-by: Kleber Sacilotto de Souza Signed-off-by: Andrea Righi --- MAINTAINERS | 12 +++++++ drivers/mfd/Kconfig | 12 +++++++ drivers/mfd/Makefile | 1 + drivers/mfd/mfd-aaeon.c | 77 +++++++++++++++++++++++++++++++++++++++++ 4 files changed, 102 insertions(+) create mode 100644 drivers/mfd/mfd-aaeon.c diff --git a/MAINTAINERS b/MAINTAINERS index 1aabf1c15bb3..e652311f54d5 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -190,6 +190,18 @@ M: Linus Walleij F: Documentation/devicetree/bindings/power/supply/*ab8500* F: drivers/power/supply/*ab8500* +AAEON DEVICE DRIVER WITH WMI INTERFACE +M: Edward Lin +M: Kunyang Fan +M: Frank Hsieh +M: Jacob Wu +S: Supported +F: drivers/gpio/gpio-aaeon.c +F: drivers/hwmon/hwmon-aaeon.c +F: drivers/leds/leds-aaeon.c +F: drivers/mfd/mfd-aaeon.c +F: drivers/watchdog/wdt_aaeon.c + ABI/API L: linux-api@vger.kernel.org F: include/linux/syscalls.h diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index e7a6e45b9fac..51a182e27e89 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -2218,6 +2218,18 @@ config MFD_QCOM_PM8008 under it in the device tree. Additional drivers must be enabled in order to use the functionality of the device. +config MFD_AAEON + tristate "AAEON WMI MFD devices" + depends on ASUS_WMI + depends on UBUNTU_ODM_DRIVERS + help + Say yes here to support mltiple IO devices on Single Board Computers + produced by AAEON. + + This driver leverages the ASUS WMI interface to access device + resources. + + menu "Multimedia Capabilities Port drivers" depends on ARCH_SA1100 diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index c66f07edcd0e..df9cffad0606 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -279,6 +279,7 @@ obj-$(CONFIG_MFD_INTEL_M10_BMC_PMCI) += intel-m10-bmc-pmci.o obj-$(CONFIG_MFD_ATC260X) += atc260x-core.o obj-$(CONFIG_MFD_ATC260X_I2C) += atc260x-i2c.o +obj-$(CONFIG_MFD_AAEON) += mfd-aaeon.o rsmu-i2c-objs := rsmu_core.o rsmu_i2c.o rsmu-spi-objs := rsmu_core.o rsmu_spi.o diff --git a/drivers/mfd/mfd-aaeon.c b/drivers/mfd/mfd-aaeon.c new file mode 100644 index 000000000000..9d2efde53cad --- /dev/null +++ b/drivers/mfd/mfd-aaeon.c @@ -0,0 +1,77 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * UP Board main platform driver and FPGA configuration support + * + * Copyright (c) 2021, AAEON Ltd. + * + * Author: Kunyang_Fan + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#define AAEON_WMI_MGMT_GUID "97845ED0-4E6D-11DE-8A39-0800200C9A66" + +struct aaeon_wmi_priv { + const struct mfd_cell *cells; + size_t ncells; +}; + +static const struct mfd_cell aaeon_mfd_cells[] = { + { .name = "gpio-aaeon" }, + { .name = "hwmon-aaeon"}, + { .name = "leds-aaeon"}, + { .name = "wdt-aaeon"}, +}; + +static const struct aaeon_wmi_priv aaeon_wmi_priv_data = { + .cells = aaeon_mfd_cells, + .ncells = ARRAY_SIZE(aaeon_mfd_cells), +}; + +static int aaeon_wmi_probe(struct wmi_device *wdev, const void *context) +{ + struct aaeon_wmi_priv *priv; + + if (!wmi_has_guid(AAEON_WMI_MGMT_GUID)) { + dev_info(&wdev->dev, "AAEON Management GUID not found\n"); + return -ENODEV; + } + + + priv = (struct aaeon_wmi_priv *)context; + dev_set_drvdata(&wdev->dev, priv); + + return devm_mfd_add_devices(&wdev->dev, 0, priv->cells, + priv->ncells, NULL, 0, NULL); +} + +static const struct wmi_device_id aaeon_wmi_id_table[] = { + { AAEON_WMI_MGMT_GUID, (void *)&aaeon_wmi_priv_data }, + {} +}; + +static struct wmi_driver aaeon_wmi_driver = { + .driver = { + .name = "mfd-aaeon", + }, + .id_table = aaeon_wmi_id_table, + .probe = aaeon_wmi_probe, +}; + +module_wmi_driver(aaeon_wmi_driver); + +MODULE_DEVICE_TABLE(wmi, aaeon_wmi_id_table); +MODULE_AUTHOR("Kunyang Fan "); +MODULE_DESCRIPTION("AAEON Board WMI driver"); +MODULE_LICENSE("GPL v2");