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Subject[PATCH v6 09/21] PM / devfreq: exynos: Add the detailed correlation between sub-blocks and power line
Date
This patch adds the detailed corrleation between sub-blocks and power line
for Exynos3250, Exynos4210 and Exynos4x12.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.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 03f13d38f1a1..b098fa2ba5d4 100644
--- a/Documentation/devicetree/bindings/devfreq/exynos-bus.txt
+++ b/Documentation/devicetree/bindings/devfreq/exynos-bus.txt
@@ -53,6 +53,57 @@ Optional properties only for parent bus device:
- exynos,voltage-tolerance: the percentage value for bus voltage tolerance
which is used to calculate the max voltage.

+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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