linux-kernel - [PATCH 1/2] dt-bindings: spmi: document binding for the Mediatek SPMI controller

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Message-ID: <1598002260-12724-2-git-send-email-hsin-hsiung.wang@mediatek.com>
Date:   Fri, 21 Aug 2020 17:30:59 +0800
From:   Hsin-Hsiung Wang <hsin-hsiung.wang@...iatek.com>
To:     Stephen Boyd <sboyd@...nel.org>, Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>
CC:     Hsin-Hsiung Wang <hsin-hsiung.wang@...iatek.com>,
        <linux-arm-msm@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <srv_heupstream@...iatek.com>
Subject: [PATCH 1/2] dt-bindings: spmi: document binding for the Mediatek SPMI controller

This adds documentation for the SPMI controller found on Mediatek SoCs.

Signed-off-by: Hsin-Hsiung Wang <hsin-hsiung.wang@...iatek.com>
---
 .../devicetree/bindings/spmi/spmi-mtk-pmif.txt     | 33 ++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/spmi/spmi-mtk-pmif.txt

diff --git a/Documentation/devicetree/bindings/spmi/spmi-mtk-pmif.txt b/Documentation/devicetree/bindings/spmi/spmi-mtk-pmif.txt
new file mode 100644
index 0000000..75a0eeb
--- /dev/null
+++ b/Documentation/devicetree/bindings/spmi/spmi-mtk-pmif.txt
@@ -0,0 +1,33 @@
+Mediatek SPMI Controller
+
+This document describes the binding for the MediaTek SPMI controller.
+
+On MediaTek SoCs the PMIC is connected via SPMI and the controller allows
+for multiple SoCs to control a single SPMI master.
+
+Required properties:
+- compatible : "mediatek,mt6873-spmi".
+- reg-names  : must contain:
+     "pmif" - pmif registers
+     "spmimst" - spmi controller registers
+- reg: Must contain an entry for each entry in reg-names.
+- clock-names: Must include the following entries:
+  "pmif_sys_ck": pmif system clock
+  "pmif_tmr_ck": pmif timer clock
+  "spmimst_clk_mux": spmi master clk mux
+- clocks: Must contain an entry for each entry in clock-names.
+
+Example:
+
+	spmi: spmi@...27000 {
+		compatible = "mediatek,mt6873-spmi";
+		reg = <0 0x10027000 0 0x000e00>,
+		      <0 0x10029000 0 0x000100>;
+		reg-names = "pmif", "spmimst";
+		clocks = <&infracfg CLK_INFRA_PMIC_AP>,
+			 <&infracfg CLK_INFRA_PMIC_TMR>,
+			 <&topckgen CLK_TOP_SPMI_MST_SEL>;
+		clock-names = "pmif_sys_ck",
+			      "pmif_tmr_ck",
+			      "spmimst_clk_mux";
+	};
-- 
2.6.4