linux-kernel - [PATCH v3 4/5] soc: rockchip: power-domain: Add GENPD_FLAG_RPM_ALWAYS

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1728368130-37213-5-git-send-email-shawn.lin@rock-chips.com>
Date: Tue,  8 Oct 2024 14:15:29 +0800
From: Shawn Lin <shawn.lin@...k-chips.com>
To: Rob Herring <robh+dt@...nel.org>,
	"James E . J . Bottomley" <James.Bottomley@...senPartnership.com>,
	"Martin K . Petersen" <martin.petersen@...cle.com>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Heiko Stuebner <heiko@...ech.de>
Cc: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
	Alim Akhtar <alim.akhtar@...sung.com>,
	Avri Altman <avri.altman@....com>,
	Bart Van Assche <bvanassche@....org>,
	YiFeng Zhao <zyf@...k-chips.com>,
	Liang Chen <cl@...k-chips.com>,
	linux-scsi@...r.kernel.org,
	linux-rockchip@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-pm@...r.kernel.org,
	Shawn Lin <shawn.lin@...k-chips.com>
Subject: [PATCH v3 4/5] soc: rockchip: power-domain: Add GENPD_FLAG_RPM_ALWAYS_ON support

If low level driver claims to keep its own power domain always on,
let pd driver respect the flag of GENPD_FLAG_RPM_ALWAYS_ON.

Signed-off-by: Shawn Lin <shawn.lin@...k-chips.com>
---

Changes in v3: None
Changes in v2: None

 drivers/pmdomain/rockchip/pm-domains.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/pmdomain/rockchip/pm-domains.c b/drivers/pmdomain/rockchip/pm-domains.c
index cb0f938..b2bb458 100644
--- a/drivers/pmdomain/rockchip/pm-domains.c
+++ b/drivers/pmdomain/rockchip/pm-domains.c
@@ -621,6 +621,9 @@ static int rockchip_pd_power_off(struct generic_pm_domain *domain)
 {
 	struct rockchip_pm_domain *pd = to_rockchip_pd(domain);
 
+	if (pd->genpd.flags & GENPD_FLAG_RPM_ALWAYS_ON)
+		return 0;
+
 	return rockchip_pd_power(pd, false);
 }
 
-- 
2.7.4