linux-kernel - [PATCH 08/13] pmdomain: mediatek: Support power domain always on

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Message-ID: <20250307034454.12243-9-guangjie.song@mediatek.com>
Date: Fri, 7 Mar 2025 11:44:32 +0800
From: Guangjie Song <guangjie.song@...iatek.com>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Matthias Brugger
	<matthias.bgg@...il.com>, AngeloGioacchino Del Regno
	<angelogioacchino.delregno@...labora.com>, Ulf Hansson
	<ulf.hansson@...aro.org>
CC: <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, <linux-mediatek@...ts.infradead.org>,
	<linux-pm@...r.kernel.org>, Guangjie Song <guangjie.song@...iatek.com>,
	<Project_Global_Chrome_Upstream_Group@...iatek.com>
Subject: [PATCH 08/13] pmdomain: mediatek: Support power domain always on

Support power domain always on with MTK_SCPD_ALWAYS_ON.

Signed-off-by: Guangjie Song <guangjie.song@...iatek.com>
---
 drivers/pmdomain/mediatek/mtk-scpsys.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/pmdomain/mediatek/mtk-scpsys.c b/drivers/pmdomain/mediatek/mtk-scpsys.c
index 467c54e24bea..f0a5e1653b5f 100644
--- a/drivers/pmdomain/mediatek/mtk-scpsys.c
+++ b/drivers/pmdomain/mediatek/mtk-scpsys.c
@@ -43,6 +43,7 @@
 #define MTK_SCPD_UFS_RTFF		BIT(9)
 #define MTK_SCPD_RTFF_DELAY		BIT(10)
 #define MTK_SCPD_IRQ_SAFE		BIT(11)
+#define MTK_SCPD_ALWAYS_ON		BIT(12)
 #define MTK_SCPD_CAPS(_scpd, _x)	((_scpd)->data->caps & (_x))
 
 #define SPM_VDE_PWR_CON			0x0210
@@ -900,6 +901,8 @@ static struct scp *init_scp(struct platform_device *pdev,
 			genpd->flags |= GENPD_FLAG_ACTIVE_WAKEUP;
 		if (MTK_SCPD_CAPS(scpd, MTK_SCPD_IRQ_SAFE))
 			genpd->flags |= GENPD_FLAG_IRQ_SAFE;
+		if (MTK_SCPD_CAPS(scpd, MTK_SCPD_ALWAYS_ON))
+			genpd->flags |= GENPD_FLAG_ALWAYS_ON;
 	}
 
 	return scp;
-- 
2.45.2