* Re: [PATCH v7 08/20] PM / devfreq: exynos: Add the detailed correlation between sub-blocks and power line
@ 2016-04-06 10:14 MyungJoo Ham
0 siblings, 0 replies; 2+ messages in thread
From: MyungJoo Ham @ 2016-04-06 10:14 UTC (permalink / raw)
To: 최찬우, 박경민,
크쉬시토프,
kgene
Cc: rjw, robh+dt, pawel.moll, mark.rutland, ijc+devicetree, galak,
linux, linux.amoon, m.reichl, tjakobi, 대인기,
linux-kernel, linux-pm, linux-samsung-soc, linux-arm-kernel,
devicetree
>
> 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>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
^ permalink raw reply [flat|nested] 2+ messages in thread
* [PATCH v7 08/20] PM / devfreq: exynos: Add the detailed correlation between sub-blocks and power line
2016-03-31 9:05 [PATCH v7 00/20] PM / devferq: Add generic exynos bus frequency driver and new passive governor Chanwoo Choi
@ 2016-03-31 9:05 ` Chanwoo Choi
0 siblings, 0 replies; 2+ messages in thread
From: Chanwoo Choi @ 2016-03-31 9:05 UTC (permalink / raw)
To: myungjoo.ham, kyungmin.park, k.kozlowski, kgene
Cc: rjw, robh+dt, pawel.moll, mark.rutland, ijc+devicetree, galak,
linux, linux.amoon, m.reichl, tjakobi, inki.dae, cw00.choi,
linux-kernel, linux-pm, linux-samsung-soc, linux-arm-kernel,
devicetree
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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