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authorChanwoo Choi <cw00.choi@samsung.com>2015-11-27 07:03:59 +0300
committerMyungJoo Ham <myungjoo.ham@samsung.com>2016-05-03 05:22:06 +0300
commita9d1f4e0cb80b917f68e5b007436d50797c4eeab (patch)
treedfad679ea0d780c9605ca318bc0e3e1e14c10ac9 /Documentation/devicetree/bindings/devfreq
parent19cf91d0f9ddc494217a0abaed91dfbddea7c958 (diff)
downloadlinux-a9d1f4e0cb80b917f68e5b007436d50797c4eeab.tar.xz
PM / devfreq: exynos: Add the detailed correlation for Exynos5422 bus
This patch adds the detailed corrleation between sub-blocks and power line for Exynos5422. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Diffstat (limited to 'Documentation/devicetree/bindings/devfreq')
-rw-r--r--Documentation/devicetree/bindings/devfreq/exynos-bus.txt19
1 files changed, 19 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/devfreq/exynos-bus.txt b/Documentation/devicetree/bindings/devfreq/exynos-bus.txt
index 7dbd4abfca33..d3ec8e676b6b 100644
--- a/Documentation/devicetree/bindings/devfreq/exynos-bus.txt
+++ b/Documentation/devicetree/bindings/devfreq/exynos-bus.txt
@@ -104,6 +104,25 @@ Detailed correlation between sub-blocks and power line according to Exynos SoC:
|--- LCD0
|--- ISP
+- In case of Exynos5422, there are two power line as following:
+ VDD_MIF |--- DREX 0 (parent device, DRAM EXpress controller)
+ |--- DREX 1
+
+ VDD_INT |--- NoC_Core (parent device)
+ |--- G2D
+ |--- G3D
+ |--- DISP1
+ |--- NoC_WCORE
+ |--- GSCL
+ |--- MSCL
+ |--- ISP
+ |--- MFC
+ |--- GEN
+ |--- PERIS
+ |--- PERIC
+ |--- FSYS
+ |--- FSYS2
+
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