[PATCH v2 0/6] Add StarFive JHB100 PECI support

From: Changhuang Liang

Date: Mon Sep 28 2026 - 04:16:42 EST


Add PECI controller driver for StarFive JHB100 SoC. The driver
supports PECI protocol communication for CPU thermal management.

This series has been tested on the JHB100 EVB1 board.

Changes since v1:

PATCH 1:
- Add Conor's "Reviewed-by" tag.

PATCH 2:
- Remove PECI write command support.

PATCH 3:
- Update the 0x83 completion code definition to PECI_CC_RESP_IN_PROGRESS

PATCH 5:
- Update commit message
- Set GNR's minimum PECI revision to 0x42

PATCH6:
- Update commit message
- Set GNR's minimum PECI revision to 0x42
- Remove the redundant !priv->gen_info->read_thresholds check in update_thresholds()

v1: https://lore.kernel.org/all/20260903133408.110847-1-changhuang.liang@xxxxxxxxxxxxxxxx/

Changhuang Liang (6):
dt-bindings: peci: Add StarFive JHB100 PECI controller
peci: controller: Add StarFive JHB100 PECI driver
peci: Add support for PECI CC 0x83 retry condition
peci: cpu: Add Intel Granite Rapids support
hwmon: (peci/cputemp) Add support for Granite Rapids (GNR)
hwmon: (peci/dimmtemp) Add support for Granite Rapids (GNR)

.../bindings/peci/starfive,jhb100-peci.yaml | 57 +++
MAINTAINERS | 8 +
drivers/hwmon/peci/cputemp.c | 21 +
drivers/hwmon/peci/dimmtemp.c | 33 +-
drivers/peci/controller/Kconfig | 17 +
drivers/peci/controller/Makefile | 1 +
drivers/peci/controller/peci-starfive.c | 376 ++++++++++++++++++
drivers/peci/cpu.c | 4 +
drivers/peci/request.c | 2 +
9 files changed, 515 insertions(+), 4 deletions(-)
create mode 100644 Documentation/devicetree/bindings/peci/starfive,jhb100-peci.yaml
create mode 100644 drivers/peci/controller/peci-starfive.c

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2.25.1