[PATCH v5 0/4] Added QCOM RPMH Power Domain Driver

Aswin Murugan aswin.murugan at oss.qualcomm.com
Mon Oct 27 12:33:08 CET 2025


This patch series adds support for the Qualcomm RPMH power domain
driver, responsible for managing power domains on Qualcomm SoCs.
The driver is ported from the Linux kernel and adapted for
U-Boot to enable proper power domain control on SA8775P platform.

Signed-off-by: Aswin Murugan <aswin.murugan at oss.qualcomm.com>
---
Changes in v5:
- As part of "qcom_rpmhpd" driver removal change did in v4, the rpmh_write() in drivers/power/domain/qcom-rpmhpd.c
  should be passed with pd->dev as first argument to align with it.
- Added (ulong) casting in rpmhpd_match_table to address the warning. 

Changes in v4:
- Added all soc entries in power domain linux driver to drivers/power/domain/qcom-rpmhpd.c and
  stubbed it
- Removed "qcom_rpmhpd" driver & unused members of struct rpmhpd in drivers/power/domain/qcom-rpmhpd.c
- Moved the "soc: qcom: cmd-db" change before the "power-domain" change
- Link to v3: https://lore.kernel.org/u-boot/20250702180133.1889709-1-aswin.murugan@oss.qualcomm.com/

Changes in v3:
- Removed OF_LIVE_SA8775P config in arch/arm/mach-snapdragon/Kconfig & configs/qcs9100_defconfig,
  since there is no SA8775p specific fixups are done
- Link to v2: https://lore.kernel.org/u-boot/20250702171335.1811080-1-aswin.murugan@oss.qualcomm.com/

Changes in v2:
- Added ARCH_SNAPDRAGON dependency to QCOM_POWER_DOMAIN in drivers/power/domain/Kconfig
- In drivers/power/domain/qcom-rpmhpd.c, the un-supported power domains are handled with warning
- Power domain fixups have been removed since they are now managed by drivers/power/domain/qcom-rpmhpd.c
- Link to v1: https://lore.kernel.org/u-boot/20250626112441.143064-1-aswin.murugan@oss.qualcomm.com/
---

Aswin Murugan (4):
  soc: qcom: cmd-db: Add cmd_db_read_slave_id() & cmd_db_read_aux_data()
    functions
  power-domain: Add QCOM RPMH Power Domain Driver Support
  mach-snapdragon: fixup power-domains
  configs: qcom: Add QCOM_POWER_DOMAIN config

 arch/arm/mach-snapdragon/of_fixup.c |  31 ----
 configs/qcom_defconfig              |   1 +
 drivers/power/domain/Kconfig        |   8 +
 drivers/power/domain/Makefile       |   1 +
 drivers/power/domain/qcom-rpmhpd.c  | 278 ++++++++++++++++++++++++++++
 drivers/soc/qcom/cmd-db.c           |  45 +++++
 include/soc/qcom/cmd-db.h           |   2 +
 7 files changed, 335 insertions(+), 31 deletions(-)
 create mode 100644 drivers/power/domain/qcom-rpmhpd.c

-- 
2.34.1



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