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Message-Id: <20250820-gpd_fan-v7-0-10c8058f4dba@uniontech.com>
Date: Wed, 20 Aug 2025 17:50:37 +0800
From: Cryolitia PukNgae via B4 Relay <devnull+cryolitia.uniontech.com@...nel.org>
To: Jean Delvare <jdelvare@...e.com>, Guenter Roeck <linux@...ck-us.net>,
Jonathan Corbet <corbet@....net>,
Cryolitia PukNgae <cryolitia@...ontech.com>
Cc: linux-kernel@...r.kernel.org, linux-hwmon@...r.kernel.org,
linux-doc@...r.kernel.org, Celeste Liu <CoelacanthusHex@...il.com>,
Yao Zi <ziyao@...root.org>, Derek John Clark <derekjohn.clark@...il.com>,
WangYuli <wangyuli@...ontech.com>, Jun Zhan <zhanjun@...ontech.com>,
niecheng1@...ontech.com, guanwentao@...ontech.com,
Marcin Strągowski <marcin@...agowski.com>,
someone5678 <someone5678.dev@...il.com>,
Justin Weiss <justin@...tinweiss.com>,
Antheas Kapenekakis <lkml@...heas.dev>, command_block <mtf@...me>,
derjohn <himself@...john.de>, Crashdummyy <crashdummy1337@...ton.me>
Subject: [PATCH RESEND v7 0/2] hwmon: add GPD devices sensor driver
Sensors driver for GPD Handhelds that expose fan reading and control
via hwmon sysfs.
Shenzhen GPD Technology Co., Ltd. manufactures a series of handheld
devices. This driver implements these functions through x86 port-mapped
IO.
Tested-by: Marcin Strągowski <marcin@...agowski.com>
Tested-by: someone5678 <someone5678.dev@...il.com>
Tested-by: Justin Weiss <justin@...tinweiss.com>
Tested-by: Antheas Kapenekakis <lkml@...heas.dev>
Tested-by: command_block <mtf@...me>
Tested-by: derjohn <himself@...john.de>
Tested-by: Crashdummyy <crashdummy1337@...ton.me>
Signed-off-by: Cryolitia PukNgae <cryolitia@...ontech.com>
---
Additional explanation: Based on the concerns in the previous version
of the discussion about placing the driver in the x86 subsystem or the
hwmon subsystem, I currently do not see any intention from GPD to
integrate battery management into EC, and would prefer to keep the
driver in the hwmon subsystem until the hardware manufacturers actually
make something practical.
---
Changes in v7:
- Add support for GPD Duo
- Change email from cryolitia@...il.com to cryolitia@...ontech.com
- Link to v6: https://lore.kernel.org/r/CAGwozwG13swYjCB6_Wm2h8a2CdHxam+2y=g1m42pynkKqqdDLg@mail.gmail.com
Changes in v6:
- fix: nullptr and label followed by a declaration
- cleanup: clean up code and rename some function
- format code
- dmi: add 2025 new GPD devices
- Link to v5: https://lore.kernel.org/r/20250211-gpd_fan-v5-0-608f4255f0e1@gmail.com
Changes in v5:
- Rebase on kernel 6.13
- Remove all value-cache related code
- Clean up code
- Link to v4: https://lore.kernel.org/r/20240718-gpd_fan-v4-0-116e5431a9fe@gmail.com
Changes in v4:
- Apply suggest by Krzysztof Kozlowski, thanks!
- Link to v3: https://lore.kernel.org/r/20240717-gpd_fan-v3-0-8d7efb1263b7@gmail.com
Changes in v3:
- Re-arrange code, thanks to Krzysztof Kozlowski, Guenter Roeck, Yao Zi!
- Link to v2: https://lore.kernel.org/r/20240717-gpd_fan-v2-0-f7b7e6b9f21b@gmail.com
Changes in v2:
- Improved documentation, thanks to Randy Dunlap!
- Link to v1: https://lore.kernel.org/r/20240716-gpd_fan-v1-0-34051dd71a06@gmail.com
---
Cryolitia PukNgae (2):
hwmon: add GPD devices sensor driver
hwmon: document: add gpd-fan
Documentation/hwmon/gpd-fan.rst | 71 ++++
Documentation/hwmon/index.rst | 1 +
MAINTAINERS | 7 +
drivers/hwmon/Kconfig | 10 +
drivers/hwmon/Makefile | 1 +
drivers/hwmon/gpd-fan.c | 753 ++++++++++++++++++++++++++++++++++++++++
6 files changed, 843 insertions(+)
---
base-commit: b19a97d57c15643494ac8bfaaa35e3ee472d41da
change-id: 20240716-gpd_fan-57f30923c884
Best regards,
--
Cryolitia PukNgae <cryolitia@...ontech.com>
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