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[v2,2/2] arm64: dts: rockchip: add eMMC's power domain support for rk3399

Message ID 20160908064905.18080-3-xzy.xu@rock-chips.com (mailing list archive)
State New, archived
Headers show

Commit Message

ziyuan Sept. 8, 2016, 6:49 a.m. UTC 
Control power domain for eMMC via genpd to reduce power consumption.

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Ziyuan Xu <xzy.xu@rock-chips.com>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>

---

Changes in v2:
- add Shawn's review-tag and Doug's review-tag

 arch/arm64/boot/dts/rockchip/rk3399.dtsi | 11 +++++++++++
 1 file changed, 11 insertions(+)
diff mbox

Patch

diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
index b65c193..064f87b 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
@@ -269,6 +269,7 @@ 
 		#clock-cells = <0>;
 		phys = <&emmc_phy>;
 		phy-names = "phy_arasan";
+		power-domains = <&power RK3399_PD_EMMC>;
 		status = "disabled";
 	};
 
@@ -690,6 +691,11 @@ 
 		status = "disabled";
 	};
 
+	qos_emmc: qos@ffa58000 {
+		compatible = "syscon";
+		reg = <0x0 0xffa58000 0x0 0x20>;
+	};
+
 	qos_gmac: qos@ffa5c000 {
 		compatible = "syscon";
 		reg = <0x0 0xffa5c000 0x0 0x20>;
@@ -823,6 +829,11 @@ 
 			};
 
 			/* These power domains are grouped by VD_LOGIC */
+			pd_emmc@RK3399_PD_EMMC {
+				reg = <RK3399_PD_EMMC>;
+				clocks = <&cru ACLK_EMMC>;
+				pm_qos = <&qos_emmc>;
+			};
 			pd_gmac@RK3399_PD_GMAC {
 				reg = <RK3399_PD_GMAC>;
 				clocks = <&cru ACLK_GMAC>;