[PATCH v5 0/4] ASoC: qcom and pinctrl: add LPASS LPR voting and Hawi LPASS LPI TLMM

[Prasad Kumpatla <prasad.kumpatla@oss.qualcomm.com>]

This series adds support for LPASS low-power resource (LPR) voting
through PRM and introduces LPASS LPI TLMM pinctrl support for newer
platforms such as Hawi.

On such platforms, LPASS requires LPR resource voting via PRM to keep
the subsystem active. This is handled by adding a new clock ID and
support for PARAM_ID_RSC_CPU_LPR in q6prm.

Additionally, a new LPASS LPI TLMM block is introduced, requiring a
dedicated DT binding and pinctrl driver.

Dependencies and merge strategy
===============================

The series introduces a new clock identifier, LPASS_HW_LPR_VOTE, in
qcom,q6dsp-lpass-ports.h. This clock ID is consumed both by the ASoC
LPASS LPR voting support and by the Hawi LPASS LPI DT binding.

As a result, the DT binding header update introducing
LPASS_HW_LPR_VOTE is the only cross-subsystem dependency in this
series.

The intended merge strategy is:

  1. Merge the LPASS_HW_LPR_VOTE definition in
     qcom,q6dsp-lpass-ports.h.

  2. Merge the ASoC LPASS LPR voting support via the ASoC tree.

  3. Merge the Hawi LPASS LPI DT binding and pinctrl driver via the
     pinctrl tree.

Apart from the shared DT binding header update, the ASoC and pinctrl
changes are independent and do not introduce additional build-time
dependencies between the two subsystems.

Changes in v5:
	- Keep LPASS_HW_LPR_VOTE addition separate from removal of the unused
	  Q6AFE_MAX_CLK_ID define and move the cleanup to a follow-up patch.
	- Clarify dependency on LPASS_HW_LPR_VOTE and document the intended
	  merge strategy in the cover letter.
	- Link to v4: https://lore.kernel.org/linux-arm-msm/20260720130511.493295-1-prasad.kumpatla@oss.qualcomm.com/

changes in v4:
	- Addressed Krzysztof comments, Drop Q6AFE_MAX_CLK_ID from the bindings
	  since it is not used in-tree.
	- Link to v3: https://lore.kernel.org/linux-arm-msm/20260715133243.3170821-1-prasad.kumpatla@oss.qualcomm.com/

Changes in v3:
	- Drop the mutex cleanup patch from this series. Since this change
	  is not required for Hawi enablement, keep the current series 
	  focused on LPASS LPR voting and LPASS LPI TLMM support, and 
	  address the cleanup in a dedicated follow-up series.
	 - As Srini suggested changed LPR_CPU_SS_SLEEP_DISABLED to LPR_CPU_SS_SLEEP_DISABLE in patch#2.
	 - Link to v2: https://lore.kernel.org/all/20260713184549.929569-1-prasad.kumpatla@oss.qualcomm.com/

Changes in v2:
	- Add mutex cleanup devm-managed in LPASS LPI Pinctrl. 
	- Addressed Bart Comments related to newline and readability.
	- Link to v1: https://lore.kernel.org/linux-arm-msm/20260708114924.1069239-1-prasad.kumpatla@oss.qualcomm.com/

Prasad Kumpatla (4):
  ASoC: dt-bindings: qcom: add LPASS LPR vote clock ID
  ASoC: qcom: q6prm: add support for LPASS LPR resource voting
  dt-bindings: pinctrl: qcom,hawi-lpass-lpi-pinctrl: Add Hawi LPI
    pinctrl
  pinctrl: qcom: hawi-lpass-lpi: add Hawi LPASS LPI TLMM

 .../pinctrl/qcom,hawi-lpass-lpi-pinctrl.yaml  | 109 ++++++++
 drivers/pinctrl/qcom/Kconfig                  |  10 +
 drivers/pinctrl/qcom/Makefile                 |   1 +
 drivers/pinctrl/qcom/pinctrl-hawi-lpass-lpi.c | 244 ++++++++++++++++++
 drivers/pinctrl/qcom/pinctrl-lpass-lpi.h      |  17 ++
 .../sound/qcom,q6dsp-lpass-ports.h            |   1 +
 sound/soc/qcom/qdsp6/q6dsp-lpass-clocks.c     |   2 +-
 sound/soc/qcom/qdsp6/q6prm-clocks.c           |   2 +
 sound/soc/qcom/qdsp6/q6prm.c                  |  16 +-
 sound/soc/qcom/qdsp6/q6prm.h                  |   1 +
 10 files changed, 399 insertions(+), 4 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/pinctrl/qcom,hawi-lpass-lpi-pinctrl.yaml
 create mode 100644 drivers/pinctrl/qcom/pinctrl-hawi-lpass-lpi.c


base-commit: 290aaf24a551d5a0dce037e3fab30820f9113a10
prerequisite-patch-id: b466b07ba380317b33b3ef98e3789c4a51aa96c1
-- 
2.34.1