* [PATCH] ARM: dts: imx6sx: add pu power domain support @ 2018-01-23 15:12 Anson Huang [not found] ` <1516720343-21933-1-git-send-email-Anson.Huang-3arQi8VN3Tc@public.gmane.org> 0 siblings, 1 reply; 4+ messages in thread From: Anson Huang @ 2018-01-23 15:12 UTC (permalink / raw) To: shawnguo, kernel, fabio.estevam, robh+dt, aisheng.dong, mark.rutland, linux Cc: Linux-imx, linux-arm-kernel, devicetree, linux-kernel Add PU power domain support, GPU is the only module inside PU power domain, and PU power is supplied by LDO_SOC. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> --- arch/arm/boot/dts/imx6sx.dtsi | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/arm/boot/dts/imx6sx.dtsi b/arch/arm/boot/dts/imx6sx.dtsi index fd78793..42ef4c6 100644 --- a/arch/arm/boot/dts/imx6sx.dtsi +++ b/arch/arm/boot/dts/imx6sx.dtsi @@ -188,6 +188,7 @@ <&clks IMX6SX_CLK_GPU>, <&clks IMX6SX_CLK_GPU>; clock-names = "bus", "core", "shader"; + power-domains = <&pd_pu>; }; dma_apbh: dma-apbh@1804000 { @@ -767,6 +768,13 @@ #address-cells = <1>; #size-cells = <0>; + pd_pu: power-domain@1 { + reg = <1>; + #power-domain-cells = <0>; + power-supply = <®_soc>; + clocks = <&clks IMX6SX_CLK_GPU>; + }; + pd_pci: power-domain@3 { reg = <3>; #power-domain-cells = <0>; -- 2.7.4 ^ permalink raw reply related [flat|nested] 4+ messages in thread
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* Re: [PATCH] ARM: dts: imx6sx: add pu power domain support [not found] ` <1516720343-21933-1-git-send-email-Anson.Huang-3arQi8VN3Tc@public.gmane.org> @ 2018-01-25 15:30 ` Dong Aisheng 2018-01-26 6:32 ` Anson Huang 2018-02-05 6:27 ` Shawn Guo 1 sibling, 1 reply; 4+ messages in thread From: Dong Aisheng @ 2018-01-25 15:30 UTC (permalink / raw) To: Anson Huang Cc: shawnguo-DgEjT+Ai2ygdnm+yROfE0A, kernel-bIcnvbaLZ9MEGnE8C9+IrQ, fabio.estevam-3arQi8VN3Tc, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, aisheng.dong-3arQi8VN3Tc, mark.rutland-5wv7dgnIgG8, linux-I+IVW8TIWO2tmTQ+vhA3Yw, Linux-imx-3arQi8VN3Tc, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r, devicetree-u79uwXL29TY76Z2rM5mHXA, linux-kernel-u79uwXL29TY76Z2rM5mHXA On Tue, Jan 23, 2018 at 11:12:23PM +0800, Anson Huang wrote: > Add PU power domain support, GPU is the only > module inside PU power domain, and PU power > is supplied by LDO_SOC. > > Signed-off-by: Anson Huang <Anson.Huang-3arQi8VN3Tc@public.gmane.org> > --- > arch/arm/boot/dts/imx6sx.dtsi | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/arch/arm/boot/dts/imx6sx.dtsi b/arch/arm/boot/dts/imx6sx.dtsi > index fd78793..42ef4c6 100644 > --- a/arch/arm/boot/dts/imx6sx.dtsi > +++ b/arch/arm/boot/dts/imx6sx.dtsi > @@ -188,6 +188,7 @@ > <&clks IMX6SX_CLK_GPU>, > <&clks IMX6SX_CLK_GPU>; > clock-names = "bus", "core", "shader"; > + power-domains = <&pd_pu>; > }; > > dma_apbh: dma-apbh@1804000 { > @@ -767,6 +768,13 @@ > #address-cells = <1>; > #size-cells = <0>; > > + pd_pu: power-domain@1 { > + reg = <1>; > + #power-domain-cells = <0>; > + power-supply = <®_soc>; I wonder we may not need this as it's a non-stop domain just like we did for arm domain, right? Otherwise, the patch looks fine to me. Acked-by: Dong Aisheng <aisheng.dong-3arQi8VN3Tc@public.gmane.org> Regards Dong Aisheng > + clocks = <&clks IMX6SX_CLK_GPU>; > + }; > + > pd_pci: power-domain@3 { > reg = <3>; > #power-domain-cells = <0>; > -- > 2.7.4 > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 4+ messages in thread
* RE: [PATCH] ARM: dts: imx6sx: add pu power domain support 2018-01-25 15:30 ` Dong Aisheng @ 2018-01-26 6:32 ` Anson Huang 0 siblings, 0 replies; 4+ messages in thread From: Anson Huang @ 2018-01-26 6:32 UTC (permalink / raw) To: Dong Aisheng Cc: shawnguo-DgEjT+Ai2ygdnm+yROfE0A, kernel-bIcnvbaLZ9MEGnE8C9+IrQ, Fabio Estevam, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, A.s. Dong, mark.rutland-5wv7dgnIgG8, linux-I+IVW8TIWO2tmTQ+vhA3Yw, dl-linux-imx, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r, devicetree-u79uwXL29TY76Z2rM5mHXA, linux-kernel-u79uwXL29TY76Z2rM5mHXA -----Original Message----- From: Dong Aisheng [mailto:dongas86@gmail.com] Sent: 2018年1月25日 23:30 To: Anson Huang <anson.huang@nxp.com> Cc: shawnguo@kernel.org; kernel@pengutronix.de; Fabio Estevam <fabio.estevam@nxp.com>; robh+dt@kernel.org; A.s. Dong <aisheng.dong@nxp.com>; mark.rutland@arm.com; linux@armlinux.org.uk; dl-linux-imx <linux-imx@nxp.com>; linux-arm-kernel@lists.infradead.org; devicetree@vger.kernel.org; linux-kernel@vger.kernel.org Subject: Re: [PATCH] ARM: dts: imx6sx: add pu power domain support On Tue, Jan 23, 2018 at 11:12:23PM +0800, Anson Huang wrote: > Add PU power domain support, GPU is the only module inside PU power > domain, and PU power is supplied by LDO_SOC. > > Signed-off-by: Anson Huang <Anson.Huang@nxp.com> > --- > arch/arm/boot/dts/imx6sx.dtsi | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/arch/arm/boot/dts/imx6sx.dtsi > b/arch/arm/boot/dts/imx6sx.dtsi index fd78793..42ef4c6 100644 > --- a/arch/arm/boot/dts/imx6sx.dtsi > +++ b/arch/arm/boot/dts/imx6sx.dtsi > @@ -188,6 +188,7 @@ > <&clks IMX6SX_CLK_GPU>, > <&clks IMX6SX_CLK_GPU>; > clock-names = "bus", "core", "shader"; > + power-domains = <&pd_pu>; > }; > > dma_apbh: dma-apbh@1804000 { > @@ -767,6 +768,13 @@ > #address-cells = <1>; > #size-cells = <0>; > > + pd_pu: power-domain@1 { > + reg = <1>; > + #power-domain-cells = <0>; > + power-supply = <®_soc>; I wonder we may not need this as it's a non-stop domain just like we did for arm domain, right? Otherwise, the patch looks fine to me. Acked-by: Dong Aisheng <aisheng.dong@nxp.com> No, this domain can be power gated, there is an internal power gate in GPC, just the input power can NOT be disabled. So there might be some leakage in this domain, but power still can be saved a lot if internal power gate is off. Anson. Regards Dong Aisheng > + clocks = <&clks IMX6SX_CLK_GPU>; > + }; > + > pd_pci: power-domain@3 { > reg = <3>; > #power-domain-cells = <0>; > -- > 2.7.4 > ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] ARM: dts: imx6sx: add pu power domain support [not found] ` <1516720343-21933-1-git-send-email-Anson.Huang-3arQi8VN3Tc@public.gmane.org> 2018-01-25 15:30 ` Dong Aisheng @ 2018-02-05 6:27 ` Shawn Guo 1 sibling, 0 replies; 4+ messages in thread From: Shawn Guo @ 2018-02-05 6:27 UTC (permalink / raw) To: Anson Huang Cc: kernel-bIcnvbaLZ9MEGnE8C9+IrQ, fabio.estevam-3arQi8VN3Tc, robh+dt-DgEjT+Ai2ygdnm+yROfE0A, aisheng.dong-3arQi8VN3Tc, mark.rutland-5wv7dgnIgG8, linux-I+IVW8TIWO2tmTQ+vhA3Yw, Linux-imx-3arQi8VN3Tc, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r, devicetree-u79uwXL29TY76Z2rM5mHXA, linux-kernel-u79uwXL29TY76Z2rM5mHXA On Tue, Jan 23, 2018 at 11:12:23PM +0800, Anson Huang wrote: > Add PU power domain support, GPU is the only > module inside PU power domain, and PU power > is supplied by LDO_SOC. > > Signed-off-by: Anson Huang <Anson.Huang-3arQi8VN3Tc@public.gmane.org> Applied, thanks. -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2018-02-05 6:27 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2018-01-23 15:12 [PATCH] ARM: dts: imx6sx: add pu power domain support Anson Huang [not found] ` <1516720343-21933-1-git-send-email-Anson.Huang-3arQi8VN3Tc@public.gmane.org> 2018-01-25 15:30 ` Dong Aisheng 2018-01-26 6:32 ` Anson Huang 2018-02-05 6:27 ` Shawn Guo
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