From mboxrd@z Thu Jan 1 00:00:00 1970 From: shawn.lin@rock-chips.com (Shawn Lin) Date: Sat, 27 Aug 2016 23:05:20 +0800 Subject: [PATCH 2/2] arm64: dts: rockchip: add eMMC's power domain support for rk3399 In-Reply-To: <20160827134103.28160-3-xzy.xu@rock-chips.com> References: <20160827134103.28160-1-xzy.xu@rock-chips.com> <20160827134103.28160-3-xzy.xu@rock-chips.com> Message-ID: <2ab8ab94-fa4d-2cd6-5805-a92ac5f9697e@rock-chips.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 2016/8/27 21:41, Ziyuan Xu wrote: > Control power domain for eMMC via genpd to reduce power consumption. > > Signed-off-by: Elaine Zhang > Signed-off-by: Ziyuan Xu > It looks nice to me. But this should be merged after applying that[0] as your patch will break bind/unbind test for sdhci-of-arasan on rk3399 without it[0]. Moreover, Elaine should make sure that upstreamed rockchip power domain stuff would not off pd for emmc, *otherwise*, I should update my patch to make sure we update clkmul every time when doing suspend 2 resume.. [0]: https://patchwork.kernel.org/patch/9300971/ > --- > > arch/arm64/boot/dts/rockchip/rk3399.dtsi | 11 +++++++++++ > 1 file changed, 11 insertions(+) > > diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi > index 32aebc8..71733d4 100644 > --- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi > +++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi > @@ -239,6 +239,7 @@ > #clock-cells = <0>; > phys = <&emmc_phy>; > phy-names = "phy_arasan"; > + power-domains = <&power RK3399_PD_EMMC>; > status = "disabled"; > }; > > @@ -611,6 +612,11 @@ > status = "disabled"; > }; > > + qos_emmc: qos at ffa58000 { > + compatible = "syscon"; > + reg = <0x0 0xffa58000 0x0 0x20>; > + }; > + > qos_hdcp: qos at ffa90000 { > compatible = "syscon"; > reg = <0x0 0xffa90000 0x0 0x20>; > @@ -739,6 +745,11 @@ > }; > > /* These power domains are grouped by VD_LOGIC */ > + pd_emmc at RK3399_PD_EMMC { > + reg = ; > + clocks = <&cru ACLK_EMMC>; > + pm_qos = <&qos_emmc>; > + }; > pd_vio at RK3399_PD_VIO { > reg = ; > #address-cells = <1>; > -- Best Regards Shawn Lin