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[v4,8/9] ARM: dts: Add the support for exynos busfreq on Exynos4412-based TRATS2 board

Message ID 1421286657-4720-9-git-send-email-cw00.choi@samsung.com (mailing list archive)
State New, archived
Headers show

Commit Message

Chanwoo Choi Jan. 15, 2015, 1:50 a.m. UTC 
This patch adds the Exynos4412 memory-bus node which includes the regulator
and devfreq-event phandle. The devfreq-event phandle is used for the
governor of devfreq device and provide the current usage state of
MIF (Memory Interface) / INT (Internal) memory bus group.

Cc: Kukjin Kim <kgene@kernel.org>
Cc: Myungjoo Ham <myungjoo.ham@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
---
 arch/arm/boot/dts/exynos4412-trats2.dts | 12 ++++++++++++
 1 file changed, 12 insertions(+)
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Patch

diff --git a/arch/arm/boot/dts/exynos4412-trats2.dts b/arch/arm/boot/dts/exynos4412-trats2.dts
index bee0eed..21ba25e 100644
--- a/arch/arm/boot/dts/exynos4412-trats2.dts
+++ b/arch/arm/boot/dts/exynos4412-trats2.dts
@@ -917,6 +917,18 @@ 
 	};
 };
 
+&memory_bus_mif {
+	devfreq-events = <&ppmu_dmc0_3>, <&ppmu_dmc1_3>;
+	vdd-mem-supply = <&buck1_reg>;
+	status = "okay";
+};
+
+&memory_bus_int {
+	devfreq-events = <&ppmu_leftbus_3>, <&ppmu_rightbus_3>;
+	vdd-mem-supply = <&buck3_reg>;
+	status = "okay";
+};
+
 &pinctrl_0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&sleep0>;