[RFC PATCH 10/10] arm64: dts: rockchip: Enable dmc and dfi nodes on gru.
From: Enric Balletbo i Serra <hidden>
Date: 2018-05-14 21:16:53
Also in:
dri-devel, linux-clk, linux-devicetree, linux-pm, linux-rockchip, lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
From: Lin Huang <redacted> Enable the DMC (Dynamic Memory Controller) and the DFI (DDR PHY Interface) nodes on gru/kevin boards so we can support DDR DVFS. Signed-off-by: Lin Huang <redacted> Signed-off-by: Enric Balletbo i Serra <redacted> --- arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi | 21 ++++++++++++++++++++ arch/arm64/boot/dts/rockchip/rk3399.dtsi | 2 +- 2 files changed, 22 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi
index 18f546f2dfd1..ba2cfdd082b8 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi@@ -525,6 +525,12 @@ extcon = <&usbc_extcon0>, <&usbc_extcon1>; }; +&dmc_opp_table { + opp04 { + opp-suspend; + }; +}; + /* * Set some suspend operating points to avoid OVP in suspend *
@@ -600,6 +606,10 @@ <400000000>; }; +&display_subsystem { + devfreq = <&dmc>; +}; + &emmc_phy { status = "okay"; };
@@ -766,6 +776,17 @@ ap_i2c_audio: &i2c8 { status = "okay"; }; +&dfi { + status = "okay"; +}; + +&dmc { + status = "okay"; + center-supply = <&ppvar_centerlogic>; + upthreshold = <25>; + downdifferential = <15>; +}; + &sdhci { /* * Signal integrity isn't great at 200 MHz and 150 MHz (DDR) gives the
diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
index e012cc8ae3d4..518c742293fc 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi@@ -160,7 +160,7 @@ }; }; - display-subsystem { + display_subsystem: display-subsystem { compatible = "rockchip,display-subsystem"; ports = <&vopl_out>, <&vopb_out>; };
--
2.17.0