linux-kernel - Re: [PATCH v3 00/10] pmdomain: samsung: add supoort for Google GS101

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Message-ID: <1731abfc-c7e4-4ff0-a1b3-7d86c8025866@samsung.com>
Date: Fri, 17 Oct 2025 08:43:24 +0200
From: Marek Szyprowski <m.szyprowski@...sung.com>
To: André Draszik <andre.draszik@...aro.org>, Krzysztof
	Kozlowski <krzk@...nel.org>, Alim Akhtar <alim.akhtar@...sung.com>, Rob
	Herring <robh@...nel.org>, Conor Dooley <conor+dt@...nel.org>, Krzysztof
	Kozlowski <krzk+dt@...nel.org>, Ulf Hansson <ulf.hansson@...aro.org>
Cc: Peter Griffin <peter.griffin@...aro.org>, Tudor Ambarus
	<tudor.ambarus@...aro.org>, Will McVicker <willmcvicker@...gle.com>,
	kernel-team@...roid.com, linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
	stable@...r.kernel.org, Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: Re: [PATCH v3 00/10] pmdomain: samsung: add supoort for Google
 GS101

On 16.10.2025 17:58, André Draszik wrote:
> This series adds support for the power domains on Google GS101. It's
> fairly similar to SoCs already supported by this driver, except that
> register acces does not work via plain ioremap() / readl() / writel().
> Instead, the regmap created by the PMU driver must be used (which uses
> Arm SMCC calls under the hood).
>
> The DT update to add the new required properties on gs101 will be
> posted separately.
>
> Signed-off-by: André Draszik <andre.draszik@...aro.org>

Works fine on existing Exynos based boards.

Tested-by: Marek Szyprowski <m.szyprowski@...sung.com>

> ---
> Changes in v3:
> - use additionalProperties, not unevaluatedProperties in patch 2
> - fix path in $id in patch 2 (Rob)
> - drop comment around 'select' in patch 2 (Rob)
> - collect tags
> - Link to v2: https://lore.kernel.org/r/20251009-gs101-pd-v2-0-3f4a6db2af39@linaro.org
>
> Changes in v2:
> - Krzysztof:
>    - move google,gs101-pmu binding into separate file
>    - mark devm_kstrdup_const() patch as fix
>    - use bool for need_early_sync_state
>    - merge patches 8 and 10 from v1 series into one patch
> - collect tags
> - Link to v1: https://lore.kernel.org/r/20251006-gs101-pd-v1-0-f0cb0c01ea7b@linaro.org
>
> ---
> André Draszik (10):
>        dt-bindings: power: samsung: add google,gs101-pd
>        dt-bindings: soc: samsung: exynos-pmu: move gs101-pmu into separate binding
>        dt-bindings: soc: samsung: gs101-pmu: allow power domains as children
>        pmdomain: samsung: plug potential memleak during probe
>        pmdomain: samsung: convert to using regmap
>        pmdomain: samsung: convert to regmap_read_poll_timeout()
>        pmdomain: samsung: don't hardcode offset for registers to 0 and 4
>        pmdomain: samsung: selectively handle enforced sync_state
>        pmdomain: samsung: add support for google,gs101-pd
>        pmdomain: samsung: use dev_err() instead of pr_err()
>
>   .../devicetree/bindings/power/pd-samsung.yaml      |   1 +
>   .../bindings/soc/google/google,gs101-pmu.yaml      | 106 +++++++++++++++++
>   .../bindings/soc/samsung/exynos-pmu.yaml           |  20 ----
>   MAINTAINERS                                        |   1 +
>   drivers/pmdomain/samsung/exynos-pm-domains.c       | 126 +++++++++++++++------
>   5 files changed, 200 insertions(+), 54 deletions(-)
> ---
> base-commit: 58e817956925fdc12c61f1cb86915b82ae1603c1
> change-id: 20251001-gs101-pd-d4dc97d70a84

Best regards
-- 
Marek Szyprowski, PhD
Samsung R&D Institute Poland