From: Sascha Hauer <s.hauer@pengutronix.de>
To: linux-arm-kernel@lists.infradead.org
Cc: devicetree@vger.kernel.org, Kevin Hilman <khilman@kernel.org>,
linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org,
kernel@pengutronix.de, Matthias Brugger <matthias.bgg@gmail.com>,
Sascha Hauer <s.hauer@pengutronix.de>
Subject: [PATCH 2/5] dt-bindings: soc: Add documentation for the MediaTek SCPSYS unit
Date: Wed, 20 May 2015 16:18:57 +0200 [thread overview]
Message-ID: <1432131540-2523-3-git-send-email-s.hauer@pengutronix.de> (raw)
In-Reply-To: <1432131540-2523-1-git-send-email-s.hauer@pengutronix.de>
This adds documentation for the MediaTek SCPSYS unit found in MT8173 SoCs.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
.../devicetree/bindings/soc/mediatek/scpsys.txt | 34 ++++++++++++++++++++++
1 file changed, 34 insertions(+)
create mode 100644 Documentation/devicetree/bindings/soc/mediatek/scpsys.txt
diff --git a/Documentation/devicetree/bindings/soc/mediatek/scpsys.txt b/Documentation/devicetree/bindings/soc/mediatek/scpsys.txt
new file mode 100644
index 0000000..87f2091
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/mediatek/scpsys.txt
@@ -0,0 +1,34 @@
+MediaTek SCPSYS
+===============
+
+The System Control Processor System (SCPSYS) has several power management
+related tasks in the system. The tasks include thermal measurement, dynamic
+voltage frequency scaling (DVFS), interrupt filter and lowlevel sleep control.
+The System Power Manager (SPM) inside the SCPSYS is for the MTCMOS power
+domain control.
+
+The driver implements the Generic PM domain bindings described in
+power/power_domain.txt. It provides the power domains defined in
+include/dt-bindings/power/mt8173-power.h.
+
+Required properties:
+- compatible: Must be "mediatek,mt8173-scpsys"
+- #power-domain-cells: Must be 1
+- reg: Address range of the SCPSYS unit
+- infracfg: must contain a phandle to the infracfg controller
+
+Example:
+
+ scpsys: scpsys@10006000 {
+ #power-domain-cells = <1>;
+ compatible = "mediatek,mt8173-scpsys";
+ reg = <0 0x10006000 0 0x1000>;
+ infracfg = <&infracfg>;
+ };
+
+Example consumer:
+
+ afe: mt8173-afe-pcm@11220000 {
+ compatible = "mediatek,mt8173-afe-pcm";
+ power-domains = <&scpsys MT8173_POWER_DOMAIN_AUDIO>;
+ };
--
2.1.4
next prev parent reply other threads:[~2015-05-20 14:19 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-20 14:18 [PATCH v3] Mediatek SCPSYS power domain support Sascha Hauer
2015-05-20 14:18 ` [PATCH 1/5] soc: mediatek: Add infracfg misc driver support Sascha Hauer
2015-05-21 8:09 ` Paul Bolle
2015-05-20 14:18 ` Sascha Hauer [this message]
2015-05-20 14:18 ` [PATCH 3/5] soc: Mediatek: Add SCPSYS power domain driver Sascha Hauer
2015-05-21 8:22 ` Paul Bolle
2015-06-09 8:42 ` Sascha Hauer
2015-05-20 14:18 ` [PATCH 4/5] ARM64: MediaTek: Add generic pm domain support Sascha Hauer
2015-05-20 14:19 ` [PATCH 5/5] ARM64: MediaTek MT8173: Add SCPSYS device node Sascha Hauer
2015-05-21 14:32 ` Daniel Kurtz
2015-05-21 15:34 ` Matthias Brugger
2015-05-21 17:49 ` Sascha Hauer
2015-05-22 2:41 ` James Liao
2015-05-22 4:19 ` Daniel Kurtz
2015-05-22 5:40 ` James Liao
2015-05-22 6:12 ` Daniel Kurtz
-- strict thread matches above, loose matches on Subject: below --
2015-06-09 8:46 [PATCH v4] Mediatek SCPSYS power domain support Sascha Hauer
2015-06-09 8:47 ` [PATCH 2/5] dt-bindings: soc: Add documentation for the MediaTek SCPSYS unit Sascha Hauer
2015-05-11 19:23 [PATCH v2] Mediatek SCPSYS power domain support Sascha Hauer
2015-05-11 19:23 ` [PATCH 2/5] dt-bindings: soc: Add documentation for the MediaTek SCPSYS unit Sascha Hauer
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