From: Henry Chen <henryc.chen@mediatek.com>
To: Viresh Kumar <vireshk@kernel.org>,
Stephen Boyd <sboyd@kernel.org>, Rob Herring <robh+dt@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
Ulf Hansson <ulf.hansson@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>,
James Liao <jamesjj.liao@mediatek.com>,
Kees Cook <keescook@chromium.org>,
Weiyi Lu <weiyi.lu@mediatek.com>,
linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org,
Henry Chen <henryc.chen@mediatek.com>,
Fan Chen <fan.chen@mediatek.com>,
devicetree@vger.kernel.org, linux-mediatek@lists.infradead.org,
linux-arm-kernel@lists.infradead.org
Subject: [RFC RESEND PATCH 1/7] dt-bindings: soc: Add DVFSRC driver bindings
Date: Wed, 2 Jan 2019 22:09:52 +0800 [thread overview]
Message-ID: <1546438198-1677-2-git-send-email-henryc.chen@mediatek.com> (raw)
In-Reply-To: <1546438198-1677-1-git-send-email-henryc.chen@mediatek.com>
Document the binding for enabling DVFSRC on MediaTek SoC.
Signed-off-by: Henry Chen <henryc.chen@mediatek.com>
---
.../devicetree/bindings/soc/mediatek/dvfsrc.txt | 26 ++++++++++++++++++++++
include/dt-bindings/soc/mtk,dvfsrc.h | 18 +++++++++++++++
2 files changed, 44 insertions(+)
create mode 100644 Documentation/devicetree/bindings/soc/mediatek/dvfsrc.txt
create mode 100644 include/dt-bindings/soc/mtk,dvfsrc.h
diff --git a/Documentation/devicetree/bindings/soc/mediatek/dvfsrc.txt b/Documentation/devicetree/bindings/soc/mediatek/dvfsrc.txt
new file mode 100644
index 0000000..402c885
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/mediatek/dvfsrc.txt
@@ -0,0 +1,26 @@
+MediaTek DVFSRC Driver
+
+The Dynamic Voltage and Frequency Scaling Resource Collector (DVFSRC) is a
+HW module which is used to collect all the requests from both software and
+hardware and turn into the decision of minimum operating voltage and minimum
+DRAM frequency to fulfill those requests.
+
+Required Properties:
+- compatible: Should be one of the following
+ - "mediatek,mt8183-dvfsrc": For MT8183 SoC
+- reg: Address range of the DVFSRC unit
+- dram_type: Refer to <include/dt-bindings/soc/mtk,dvfsrc.h> for the
+ different dram type support.
+- clock-names: Must include the following entries:
+ "dvfsrc": DVFSRC module clock
+- clocks: Must contain an entry for each entry in clock-names.
+
+Example:
+
+ dvfsrc_top@10012000 {
+ compatible = "mediatek,mt8183-dvfsrc";
+ reg = <0 0x10012000 0 0x1000>;
+ clocks = <&infracfg CLK_INFRA_DVFSRC>;
+ clock-names = "dvfsrc";
+ dram_type = <MT8183_DVFSRC_OPP_LP4>;
+ };
diff --git a/include/dt-bindings/soc/mtk,dvfsrc.h b/include/dt-bindings/soc/mtk,dvfsrc.h
new file mode 100644
index 0000000..60b3497
--- /dev/null
+++ b/include/dt-bindings/soc/mtk,dvfsrc.h
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright (c) 2018 MediaTek Inc.
+ */
+
+#ifndef _DT_BINDINGS_POWER_MTK_DVFSRC_H
+#define _DT_BINDINGS_POWER_MTK_DVFSRC_H
+
+#define MT8183_DVFSRC_OPP_LP4 0
+#define MT8183_DVFSRC_OPP_LP4X 1
+#define MT8183_DVFSRC_OPP_LP3 2
+
+#define MT8183_DVFSRC_LEVEL_1 1
+#define MT8183_DVFSRC_LEVEL_2 2
+#define MT8183_DVFSRC_LEVEL_3 3
+#define MT8183_DVFSRC_LEVEL_4 4
+
+#endif /* _DT_BINDINGS_POWER_MTK_DVFSRC_H */
--
1.9.1
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next prev parent reply other threads:[~2019-01-02 14:11 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-02 14:09 [RFC RESEND PATCH 0/7] Add driver for dvfsrc and add support for active state of scpsys on mt8183 Henry Chen
2019-01-02 14:09 ` Henry Chen [this message]
2019-01-11 16:09 ` [RFC RESEND PATCH 1/7] dt-bindings: soc: Add DVFSRC driver bindings Rob Herring
2019-02-18 4:55 ` Henry Chen
2019-03-20 8:52 ` Nicolas Boichat
2019-01-02 14:09 ` [RFC RESEND PATCH 2/7] dt-bindings: soc: Add opp table on scpsys bindings Henry Chen
2019-01-03 18:45 ` Rob Herring
2019-01-07 11:04 ` Henry Chen
2019-01-02 14:09 ` [RFC RESEND PATCH 3/7] soc: mediatek: add support for the performance state Henry Chen
2019-01-03 22:57 ` Stephen Boyd
2019-01-07 11:06 ` Henry Chen
2019-01-02 14:09 ` [RFC RESEND PATCH 4/7] arm64: dts: mt8183: add performance state support of scpsys Henry Chen
2019-01-03 4:47 ` Viresh Kumar
2019-01-03 14:16 ` Henry Chen
2019-01-02 14:09 ` [RFC RESEND PATCH 5/7] soc: mediatek: add header for mediatek SIP interface Henry Chen
2019-01-02 14:09 ` [RFC RESEND PATCH 6/7] soc: mediatek: add MT8183 dvfsrc support Henry Chen
2019-01-03 23:08 ` Stephen Boyd
2019-01-07 11:09 ` Henry Chen
2019-01-10 0:38 ` Stephen Boyd
2019-01-02 14:09 ` [RFC RESEND PATCH 7/7] arm64: dts: mt8183: add dvfsrc related nodes Henry Chen
2019-01-03 4:48 ` [RFC RESEND PATCH 0/7] Add driver for dvfsrc and add support for active state of scpsys on mt8183 Viresh Kumar
2019-01-03 14:31 ` Henry Chen
2019-01-03 22:53 ` Stephen Boyd
2019-01-07 11:04 ` Henry Chen
2019-01-07 16:34 ` Georgi Djakov
2019-01-09 3:08 ` Henry Chen
2019-01-10 9:39 ` Georgi Djakov
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