linux-kernel - [PATCH v2 2/3] hwmon: Add support for SPD5118 compliant temperature sensors

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Date: Thu, 30 May 2024 15:39:36 -0700
From: Guenter Roeck <linux@...ck-us.net>
To: linux-hwmon@...r.kernel.org
Cc: devicetree@...r.kernel.org,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	linux-kernel@...r.kernel.org,
	Armin Wolf <W_Armin@....de>,
	Thomas Weißschuh <linux@...ssschuh.net>,
	René Rebe <rene@...ctcode.de>,
	Guenter Roeck <linux@...ck-us.net>
Subject: [PATCH v2 2/3] hwmon: Add support for SPD5118 compliant temperature sensors

Add support for SPD5118 (Jedec JESD300-5B.01) compliant temperature
sensors. Such sensors are typically found on DDR5 memory modules.

The first patch of the series adds SPD5118 devicetree bindings. The second
patch adds support for SPD5118 temperature sensors. The third patch adds
support for suspend/resume.

Note: The driver introduced with this patch series does not currently
support accessing the SPD5118 EEPROM, or accessing SPD5118 compatible chips
in I3C mode.

v2: Drop PEC support; it only applies to I3C mode.
    Update documentation
    Add suspend/resume support 

----------------------------------------------------------------
Guenter Roeck (3):
      dt-bindings: hwmon: jedec,spd5118: Add bindings
      hwmon: Add support for SPD5118 compliant temperature sensors
      hwmon: (spd5118) Add suspend/resume support

 .../devicetree/bindings/hwmon/jedec,spd5118.yaml   |  48 ++
 Documentation/hwmon/index.rst                      |   1 +
 Documentation/hwmon/spd5118.rst                    |  56 +++
 drivers/hwmon/Kconfig                              |  12 +
 drivers/hwmon/Makefile                             |   1 +
 drivers/hwmon/spd5118.c                            | 510 +++++++++++++++++++++
 6 files changed, 628 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/hwmon/jedec,spd5118.yaml
 create mode 100644 Documentation/hwmon/spd5118.rst
 create mode 100644 drivers/hwmon/spd5118.c