linux-kernel - [PATCH v2 10/19] PM / devfreq: exynos: Add the detailed correlation between sub-blocks and power line

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Date:	Wed, 09 Dec 2015 13:08:02 +0900
From:	Chanwoo Choi <cw00.choi@...sung.com>
To:	myungjoo.ham@...sung.com, k.kozlowski@...sung.com, kgene@...nel.org
Cc:	kyungmin.park@...sung.com, robh+dt@...nel.org, pawel.moll@....com,
	mark.rutland@....com, ijc+devicetree@...lion.org.uk,
	galak@...eaurora.org, linux@....linux.org.uk,
	tjakobi@...h.uni-bielefeld.de, linux.amoon@...il.com,
	cw00.choi@...sung.com, linux-kernel@...r.kernel.org,
	linux-pm@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
	devicetree@...r.kernel.org
Subject: [PATCH v2 10/19] PM / devfreq: exynos: Add the detailed correlation
 between sub-blocks and power line

This patch adds the detailed corrleation between sub-blocks and power line
for Exynos3250, Exynos4210 and Exynos4x12.

Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com>
---
 .../devicetree/bindings/devfreq/exynos-bus.txt     | 51 ++++++++++++++++++++++
 1 file changed, 51 insertions(+)

diff --git a/Documentation/devicetree/bindings/devfreq/exynos-bus.txt b/Documentation/devicetree/bindings/devfreq/exynos-bus.txt
index c4fdc70f8eac..ed639c4f6466 100644
--- a/Documentation/devicetree/bindings/devfreq/exynos-bus.txt
+++ b/Documentation/devicetree/bindings/devfreq/exynos-bus.txt
@@ -33,6 +33,57 @@ Optional properties for only parent bus device:
 - exynos,saturation-ratio: the percentage value which is used to calibrate
                    the performance count againt total cycle count.
 
+Detailed correlation between sub-blocks and power line according to Exynos SoC:
+- In case of Exynos3250, there are two power line as following:
+	VDD_MIF |--- DMC
+
+	VDD_INT |--- LEFTBUS (parent device)
+		|--- PERIL
+		|--- MFC
+		|--- G3D
+		|--- RIGHTBUS
+		|--- PERIR
+		|--- FSYS
+		|--- LCD0
+		|--- PERIR
+		|--- ISP
+		|--- CAM
+
+- In case of Exynos4210, there is one power line as following:
+	VDD_INT |--- DMC (parent device)
+		|--- LEFTBUS
+		|--- PERIL
+		|--- MFC(L)
+		|--- G3D
+		|--- TV
+		|--- LCD0
+		|--- RIGHTBUS
+		|--- PERIR
+		|--- MFC(R)
+		|--- CAM
+		|--- FSYS
+		|--- GPS
+		|--- LCD0
+		|--- LCD1
+
+- In case of Exynos4x12, there are two power line as following:
+	VDD_MIF |--- DMC
+
+	VDD_INT |--- LEFTBUS (parent device)
+		|--- PERIL
+		|--- MFC(L)
+		|--- G3D
+		|--- TV
+		|--- IMAGE
+		|--- RIGHTBUS
+		|--- PERIR
+		|--- MFC(R)
+		|--- CAM
+		|--- FSYS
+		|--- GPS
+		|--- LCD0
+		|--- ISP
+
 Example1:
 	Show the AXI buses of Exynos3250 SoC. Exynos3250 divides the buses to
 	power line (regulator). The MIF (Memory Interface) AXI bus is used to
-- 
1.9.1

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