From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0B825C433FE for ; Tue, 5 Oct 2021 20:25:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EE9056142A for ; Tue, 5 Oct 2021 20:25:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235675AbhJEU1S (ORCPT ); Tue, 5 Oct 2021 16:27:18 -0400 Received: from sibelius.xs4all.nl ([83.163.83.176]:58948 "EHLO sibelius.xs4all.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235545AbhJEU1S (ORCPT ); Tue, 5 Oct 2021 16:27:18 -0400 Received: from localhost (bloch.sibelius.xs4all.nl [local]) by bloch.sibelius.xs4all.nl (OpenSMTPD) with ESMTPA id 37e863b1; Tue, 5 Oct 2021 22:25:24 +0200 (CEST) Date: Tue, 5 Oct 2021 22:25:24 +0200 (CEST) From: Mark Kettenis To: Hector Martin Cc: linux-arm-kernel@lists.infradead.org, marcan@marcan.st, maz@kernel.org, robh+dt@kernel.org, arnd@kernel.org, linus.walleij@linaro.org, alyssa@rosenzweig.io, krzk@kernel.org, gregkh@linuxfoundation.org, p.zabel@pengutronix.de, rafael@kernel.org, devicetree@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-serial@vger.kernel.org In-Reply-To: <20211005155923.173399-6-marcan@marcan.st> (message from Hector Martin on Wed, 6 Oct 2021 00:59:21 +0900) Subject: Re: [PATCH 5/7] arm64: dts: apple: t8103: Add the UART PMGR tree References: <20211005155923.173399-1-marcan@marcan.st> <20211005155923.173399-6-marcan@marcan.st> Message-ID: Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org > From: Hector Martin > Date: Wed, 6 Oct 2021 00:59:21 +0900 > Content-Type: text/plain; charset="us-ascii" > > Note that the UART driver does not currently support runtime-pm, so this > effectively always keeps the UART0 device on. However, this does clockgate > all the other UARTs, as those are not currently instantiated. > > Signed-off-by: Hector Martin > --- > arch/arm64/boot/dts/apple/t8103.dtsi | 116 +++++++++++++++++++++++++++ > 1 file changed, 116 insertions(+) Reviewed-by: Mark Kettenis > diff --git a/arch/arm64/boot/dts/apple/t8103.dtsi b/arch/arm64/boot/dts/apple/t8103.dtsi > index 9f60f9e48ea0..63056ddc7ef7 100644 > --- a/arch/arm64/boot/dts/apple/t8103.dtsi > +++ b/arch/arm64/boot/dts/apple/t8103.dtsi > @@ -122,6 +122,7 @@ serial0: serial@235200000 { > */ > clocks = <&clkref>, <&clkref>; > clock-names = "uart", "clk_uart_baud0"; > + power-domains = <&ps_uart0>; > status = "disabled"; > }; > > @@ -131,5 +132,120 @@ aic: interrupt-controller@23b100000 { > interrupt-controller; > reg = <0x2 0x3b100000 0x0 0x8000>; > }; > + > + pmgr: power-management@23b700000 { > + compatible = "apple,t8103-pmgr", "apple,pmgr", "syscon", "simple-mfd"; > + #address-cells = <1>; > + #size-cells = <0>; > + > + reg = <0x2 0x3b700000 0x0 0x14000>; > + > + ps_sio_busif: power-controller@1c0 { > + compatible = "apple,t8103-pmgr-pwrstate", "apple,pmgr-pwrstate"; > + reg = <0x1c0>; > + #power-domain-cells = <0>; > + #reset-cells = <0>; > + apple,domain-name = "sio_busif"; > + }; > + > + ps_sio: power-controller@1c8 { > + compatible = "apple,t8103-pmgr-pwrstate", "apple,pmgr-pwrstate"; > + reg = <0x1c8>; > + #power-domain-cells = <0>; > + #reset-cells = <0>; > + apple,domain-name = "sio"; > + power-domains = <&ps_sio_busif>; > + }; > + > + ps_uart_p: power-controller@220 { > + compatible = "apple,t8103-pmgr-pwrstate", "apple,pmgr-pwrstate"; > + reg = <0x220>; > + #power-domain-cells = <0>; > + #reset-cells = <0>; > + apple,domain-name = "uart_p"; > + power-domains = <&ps_sio>; > + }; > + > + ps_uart0: power-controller@270 { > + compatible = "apple,t8103-pmgr-pwrstate", "apple,pmgr-pwrstate"; > + reg = <0x270>; > + #power-domain-cells = <0>; > + #reset-cells = <0>; > + apple,domain-name = "uart0"; > + power-domains = <&ps_uart_p>; > + }; > + > + ps_uart1: power-controller@278 { > + compatible = "apple,t8103-pmgr-pwrstate", "apple,pmgr-pwrstate"; > + reg = <0x278>; > + #power-domain-cells = <0>; > + #reset-cells = <0>; > + apple,domain-name = "uart1"; > + power-domains = <&ps_uart_p>; > + }; > + > + ps_uart2: power-controller@280 { > + compatible = "apple,t8103-pmgr-pwrstate", "apple,pmgr-pwrstate"; > + reg = <0x280>; > + #power-domain-cells = <0>; > + #reset-cells = <0>; > + apple,domain-name = "uart2"; > + power-domains = <&ps_uart_p>; > + }; > + > + ps_uart3: power-controller@288 { > + compatible = "apple,t8103-pmgr-pwrstate", "apple,pmgr-pwrstate"; > + reg = <0x288>; > + #power-domain-cells = <0>; > + #reset-cells = <0>; > + apple,domain-name = "uart3"; > + power-domains = <&ps_uart_p>; > + }; > + > + ps_uart4: power-controller@290 { > + compatible = "apple,t8103-pmgr-pwrstate", "apple,pmgr-pwrstate"; > + reg = <0x290>; > + #power-domain-cells = <0>; > + #reset-cells = <0>; > + apple,domain-name = "uart4"; > + power-domains = <&ps_uart_p>; > + }; > + > + ps_uart5: power-controller@298 { > + compatible = "apple,t8103-pmgr-pwrstate", "apple,pmgr-pwrstate"; > + reg = <0x298>; > + #power-domain-cells = <0>; > + #reset-cells = <0>; > + apple,domain-name = "uart5"; > + power-domains = <&ps_uart_p>; > + }; > + > + ps_uart6: power-controller@2a0 { > + compatible = "apple,t8103-pmgr-pwrstate", "apple,pmgr-pwrstate"; > + reg = <0x2a0>; > + #power-domain-cells = <0>; > + #reset-cells = <0>; > + apple,domain-name = "uart6"; > + power-domains = <&ps_uart_p>; > + }; > + > + ps_uart7: power-controller@2a8 { > + compatible = "apple,t8103-pmgr-pwrstate", "apple,pmgr-pwrstate"; > + reg = <0x2a8>; > + #power-domain-cells = <0>; > + #reset-cells = <0>; > + apple,domain-name = "uart7"; > + power-domains = <&ps_uart_p>; > + }; > + > + ps_uart8: power-controller@2b0 { > + compatible = "apple,t8103-pmgr-pwrstate", "apple,pmgr-pwrstate"; > + reg = <0x2b0>; > + #power-domain-cells = <0>; > + #reset-cells = <0>; > + apple,domain-name = "uart8"; > + power-domains = <&ps_uart_p>; > + }; > + }; > }; > }; > -- > 2.33.0 > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel >