From: Sean Rhodes <sean@starlabs.systems>
To: tzungbi@kernel.org
Cc: hansg@kernel.org, ilpo.jarvinen@linux.intel.com,
corentin.chary@gmail.com, luke@ljones.dev,
denis.benato@linux.dev, prasanth.ksr@dell.com,
jorge.lopez2@hp.com, mpearson-lenovo@squebb.ca,
derekjohn.clark@gmail.com, josh@joshuagrisham.com,
briannorris@chromium.org, jwerner@chromium.org,
tzimmermann@suse.de, javierm@redhat.com, kees@kernel.org,
u.kleine-koenig@baylibre.com, mst@redhat.com,
chenhuacai@kernel.org, wenst@chromium.org,
florian.fainelli@broadcom.com, titouan.ameline@gmail.com,
oliver@liuxiaozhen.dev, linux-kernel@vger.kernel.org,
platform-driver-x86@vger.kernel.org, Dell.Client.Kernel@dell.com,
chrome-platform@lists.linux.dev,
Sean Rhodes <sean@starlabs.systems>
Subject: [PATCH v7 1/3] firmware: Move firmware attributes class helper
Date: Fri, 17 Jul 2026 09:50:01 +0100 [thread overview]
Message-ID: <20260717085003.369496-2-sean@starlabs.systems> (raw)
In-Reply-To: <20260717085003.369496-1-sean@starlabs.systems>
Move the firmware attributes class helper from drivers/platform/x86 to
drivers/firmware and expose its class declaration through a public Linux
header.
The helper is not x86-specific. Keeping it in firmware lets coreboot
firmware drivers use the standard firmware-attributes ABI without living
under platform/x86.
Reviewed-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Reviewed-by: Derek J. Clark <derekjohn.clark@gmail.com>
Tested-by: Oliver Lin <oliver@liuxiaozhen.dev>
Signed-off-by: Sean Rhodes <sean@starlabs.systems>
---
MAINTAINERS | 8 ++++++++
drivers/firmware/Kconfig | 3 +++
drivers/firmware/Makefile | 1 +
.../x86 => firmware}/firmware_attributes_class.c | 2 +-
drivers/platform/x86/Kconfig | 3 ---
drivers/platform/x86/Makefile | 2 --
drivers/platform/x86/asus-armoury.c | 2 +-
drivers/platform/x86/dell/dell-wmi-sysman/sysman.c | 2 +-
drivers/platform/x86/hp/hp-bioscfg/bioscfg.c | 2 +-
drivers/platform/x86/lenovo/think-lmi.c | 2 +-
drivers/platform/x86/lenovo/wmi-other.c | 2 +-
drivers/platform/x86/samsung-galaxybook.c | 2 +-
.../linux/firmware_attributes.h | 6 +++---
13 files changed, 22 insertions(+), 15 deletions(-)
rename drivers/{platform/x86 => firmware}/firmware_attributes_class.c (94%)
rename drivers/platform/x86/firmware_attributes_class.h => include/linux/firmware_attributes.h (60%)
diff --git a/MAINTAINERS b/MAINTAINERS
index f37a81950e25..07bdba98b1b1 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -10114,6 +10114,14 @@ F: include/linux/firewire.h
F: include/uapi/linux/firewire*.h
F: tools/firewire/
+FIRMWARE ATTRIBUTES CLASS
+M: Hans de Goede <hansg@kernel.org>
+M: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
+L: platform-driver-x86@vger.kernel.org
+S: Maintained
+F: drivers/firmware/firmware_attributes_class.c
+F: include/linux/firmware_attributes.h
+
FIRMWARE FRAMEWORK FOR ARMV8-A
M: Sudeep Holla <sudeep.holla@kernel.org>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig
index 12dc70254842..78a239f8bbef 100644
--- a/drivers/firmware/Kconfig
+++ b/drivers/firmware/Kconfig
@@ -8,6 +8,9 @@ menu "Firmware Drivers"
source "drivers/firmware/arm_scmi/Kconfig"
+config FW_ATTR_CLASS
+ tristate
+
config ARM_SCPI_PROTOCOL
tristate "ARM System Control and Power Interface (SCPI) Message Protocol"
depends on ARM || ARM64 || COMPILE_TEST
diff --git a/drivers/firmware/Makefile b/drivers/firmware/Makefile
index 4ddec2820c96..385b6e8b7fc6 100644
--- a/drivers/firmware/Makefile
+++ b/drivers/firmware/Makefile
@@ -16,6 +16,7 @@ obj-$(CONFIG_FIRMWARE_MEMMAP) += memmap.o
obj-$(CONFIG_MTK_ADSP_IPC) += mtk-adsp-ipc.o
obj-$(CONFIG_RASPBERRYPI_FIRMWARE) += raspberrypi.o
obj-$(CONFIG_FW_CFG_SYSFS) += qemu_fw_cfg.o
+obj-$(CONFIG_FW_ATTR_CLASS) += firmware_attributes_class.o
obj-$(CONFIG_SYSFB) += sysfb.o
obj-$(CONFIG_SYSFB_SIMPLEFB) += sysfb_simplefb.o
obj-$(CONFIG_TH1520_AON_PROTOCOL) += thead,th1520-aon.o
diff --git a/drivers/platform/x86/firmware_attributes_class.c b/drivers/firmware/firmware_attributes_class.c
similarity index 94%
rename from drivers/platform/x86/firmware_attributes_class.c
rename to drivers/firmware/firmware_attributes_class.c
index 736e96c186d9..503ecc288086 100644
--- a/drivers/platform/x86/firmware_attributes_class.c
+++ b/drivers/firmware/firmware_attributes_class.c
@@ -3,7 +3,7 @@
/* Firmware attributes class helper module */
#include <linux/module.h>
-#include "firmware_attributes_class.h"
+#include <linux/firmware_attributes.h>
const struct class firmware_attributes_class = {
.name = "firmware-attributes",
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index b54b5212b204..beed14c38b54 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -926,9 +926,6 @@ config DASHARO_ACPI
source "drivers/platform/x86/x86-android-tablets/Kconfig"
-config FW_ATTR_CLASS
- tristate
-
config INTEL_IMR
bool "Intel Isolated Memory Region support"
depends on X86_INTEL_QUARK && IOSF_MBI
diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
index 872ac3842391..cab20a4145e3 100644
--- a/drivers/platform/x86/Makefile
+++ b/drivers/platform/x86/Makefile
@@ -63,8 +63,6 @@ obj-$(CONFIG_X86_PLATFORM_DRIVERS_HP) += hp/
# Hewlett Packard Enterprise
obj-$(CONFIG_UV_SYSFS) += uv_sysfs.o
-obj-$(CONFIG_FW_ATTR_CLASS) += firmware_attributes_class.o
-
# IBM Thinkpad (before 2005)
obj-$(CONFIG_IBM_RTL) += ibm_rtl.o
obj-$(CONFIG_SENSORS_HDAPS) += hdaps.o
diff --git a/drivers/platform/x86/asus-armoury.c b/drivers/platform/x86/asus-armoury.c
index 495dc1e31d40..93fac0d464d2 100644
--- a/drivers/platform/x86/asus-armoury.c
+++ b/drivers/platform/x86/asus-armoury.c
@@ -34,7 +34,7 @@
#include <linux/sysfs.h>
#include "asus-armoury.h"
-#include "firmware_attributes_class.h"
+#include <linux/firmware_attributes.h>
#define ASUS_NB_WMI_EVENT_GUID "0B3CBB35-E3C2-45ED-91C2-4C5A6D195D1C"
diff --git a/drivers/platform/x86/dell/dell-wmi-sysman/sysman.c b/drivers/platform/x86/dell/dell-wmi-sysman/sysman.c
index ab46a023cc34..85670be01647 100644
--- a/drivers/platform/x86/dell/dell-wmi-sysman/sysman.c
+++ b/drivers/platform/x86/dell/dell-wmi-sysman/sysman.c
@@ -16,7 +16,7 @@
#include <linux/sysfs.h>
#include <linux/wmi.h>
#include "dell-wmi-sysman.h"
-#include "../../firmware_attributes_class.h"
+#include <linux/firmware_attributes.h>
#define MAX_TYPES 4
#include <linux/nls.h>
diff --git a/drivers/platform/x86/hp/hp-bioscfg/bioscfg.c b/drivers/platform/x86/hp/hp-bioscfg/bioscfg.c
index 27fd6cd21529..44314ae4e5e3 100644
--- a/drivers/platform/x86/hp/hp-bioscfg/bioscfg.c
+++ b/drivers/platform/x86/hp/hp-bioscfg/bioscfg.c
@@ -14,7 +14,7 @@
#include <linux/string.h>
#include <linux/wmi.h>
#include "bioscfg.h"
-#include "../../firmware_attributes_class.h"
+#include <linux/firmware_attributes.h>
#include <linux/nls.h>
#include <linux/errno.h>
diff --git a/drivers/platform/x86/lenovo/think-lmi.c b/drivers/platform/x86/lenovo/think-lmi.c
index e215e86e3db7..a56f152b5f28 100644
--- a/drivers/platform/x86/lenovo/think-lmi.c
+++ b/drivers/platform/x86/lenovo/think-lmi.c
@@ -20,7 +20,7 @@
#include <linux/types.h>
#include <linux/dmi.h>
#include <linux/wmi.h>
-#include "../firmware_attributes_class.h"
+#include <linux/firmware_attributes.h>
#include "think-lmi.h"
static bool debug_support;
diff --git a/drivers/platform/x86/lenovo/wmi-other.c b/drivers/platform/x86/lenovo/wmi-other.c
index fbb32bf404f2..e9a2c4684e5f 100644
--- a/drivers/platform/x86/lenovo/wmi-other.c
+++ b/drivers/platform/x86/lenovo/wmi-other.c
@@ -50,7 +50,7 @@
#include "wmi-capdata.h"
#include "wmi-events.h"
#include "wmi-helpers.h"
-#include "../firmware_attributes_class.h"
+#include <linux/firmware_attributes.h>
#define LENOVO_OTHER_MODE_GUID "DC2A8805-3A8C-41BA-A6F7-092E0089CD3B"
diff --git a/drivers/platform/x86/samsung-galaxybook.c b/drivers/platform/x86/samsung-galaxybook.c
index 6382af0b106c..74b8c887dd79 100644
--- a/drivers/platform/x86/samsung-galaxybook.c
+++ b/drivers/platform/x86/samsung-galaxybook.c
@@ -28,7 +28,7 @@
#include <linux/uuid.h>
#include <linux/workqueue.h>
#include <acpi/battery.h>
-#include "firmware_attributes_class.h"
+#include <linux/firmware_attributes.h>
#define DRIVER_NAME "samsung-galaxybook"
diff --git a/drivers/platform/x86/firmware_attributes_class.h b/include/linux/firmware_attributes.h
similarity index 60%
rename from drivers/platform/x86/firmware_attributes_class.h
rename to include/linux/firmware_attributes.h
index d27abe54fcf9..d4026ba1fcc2 100644
--- a/drivers/platform/x86/firmware_attributes_class.h
+++ b/include/linux/firmware_attributes.h
@@ -2,11 +2,11 @@
/* Firmware attributes class helper module */
-#ifndef FW_ATTR_CLASS_H
-#define FW_ATTR_CLASS_H
+#ifndef _LINUX_FIRMWARE_ATTRIBUTES_H
+#define _LINUX_FIRMWARE_ATTRIBUTES_H
#include <linux/device/class.h>
extern const struct class firmware_attributes_class;
-#endif /* FW_ATTR_CLASS_H */
+#endif /* _LINUX_FIRMWARE_ATTRIBUTES_H */
--
2.53.0
next prev parent reply other threads:[~2026-07-17 8:50 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-17 8:50 [PATCH v7 0/3] firmware: Add coreboot CFR firmware attributes driver Sean Rhodes
2026-07-17 8:50 ` Sean Rhodes [this message]
2026-07-18 2:22 ` [PATCH v7 1/3] firmware: Move firmware attributes class helper Derek J. Clark
2026-07-17 8:50 ` [PATCH v7 2/3] firmware: Rename google firmware directory to coreboot Sean Rhodes
2026-07-18 0:39 ` Julius Werner
2026-07-17 8:50 ` [PATCH v7 3/3] firmware: coreboot: Add CFR firmware attributes driver Sean Rhodes
2026-07-20 6:48 ` Tzung-Bi Shih
2026-07-21 9:14 ` Ilpo Järvinen
2026-07-21 9:56 ` Ilpo Järvinen
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