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Wed, 19 Nov 2025 16:58:51 -0800 (PST) From: "Kevin Hilman (TI.com)" Date: Wed, 19 Nov 2025 16:58:46 -0800 Subject: [PATCH RFC v4 2/2] pmdomain: arm_scmi: add support for domain hierarchies Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251119-pmdomain-hierarchy-onecell-v4-2-f25a1d5022f8@baylibre.com> References: <20251119-pmdomain-hierarchy-onecell-v4-0-f25a1d5022f8@baylibre.com> In-Reply-To: <20251119-pmdomain-hierarchy-onecell-v4-0-f25a1d5022f8@baylibre.com> To: Ulf Hansson , Rob Herring , Krzysztof Kozlowski Cc: devicetree@vger.kernel.org, linux-pm@vger.kernel.org, arm-scmi@vger.kernel.org, linux-kernel@vger.kernel.org, Kevin Hilman X-Mailer: b4 0.15-dev-a6db3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1331; i=khilman@baylibre.com; h=from:subject:message-id; bh=Vg3Dfytm6mN+l/mw3VTkFpkman7sIJ6vOYXNpDQ8C3o=; 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Signed-off-by: Kevin Hilman (TI.com) --- drivers/pmdomain/arm/scmi_pm_domain.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/pmdomain/arm/scmi_pm_domain.c b/drivers/pmdomain/arm/s= cmi_pm_domain.c index 8fe1c0a501c9..a36bb50c7cf6 100644 --- a/drivers/pmdomain/arm/scmi_pm_domain.c +++ b/drivers/pmdomain/arm/scmi_pm_domain.c @@ -41,7 +41,7 @@ static int scmi_pd_power_off(struct generic_pm_domain *do= main) =20 static int scmi_pm_domain_probe(struct scmi_device *sdev) { - int num_domains, i; + int num_domains, i, ret; struct device *dev =3D &sdev->dev; struct device_node *np =3D dev->of_node; struct scmi_pm_domain *scmi_pd; @@ -110,7 +110,14 @@ static int scmi_pm_domain_probe(struct scmi_device *sd= ev) =20 dev_set_drvdata(dev, scmi_pd_data); =20 - return of_genpd_add_provider_onecell(np, scmi_pd_data); + ret =3D of_genpd_add_provider_onecell(np, scmi_pd_data); + if (ret) + return ret; + + /* check for (optional) subdomain mapping with power-domain-map */ + of_genpd_add_subdomain_map(np, scmi_pd_data); + + return ret; } =20 static void scmi_pm_domain_remove(struct scmi_device *sdev) --=20 2.51.0