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 A28D3C433F5 for ; Tue, 5 Oct 2021 16:00:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8DBD861264 for ; Tue, 5 Oct 2021 16:00:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236397AbhJEQCI (ORCPT ); Tue, 5 Oct 2021 12:02:08 -0400 Received: from marcansoft.com ([212.63.210.85]:44420 "EHLO mail.marcansoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236331AbhJEQCF (ORCPT ); Tue, 5 Oct 2021 12:02:05 -0400 Received: from [127.0.0.1] (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: hector@marcansoft.com) by mail.marcansoft.com (Postfix) with ESMTPSA id 8E61A4246F; Tue, 5 Oct 2021 16:00:06 +0000 (UTC) From: Hector Martin To: linux-arm-kernel@lists.infradead.org Cc: Hector Martin , Marc Zyngier , Rob Herring , Arnd Bergmann , Linus Walleij , Alyssa Rosenzweig , Krzysztof Kozlowski , Greg Kroah-Hartman , Mark Kettenis , Philipp Zabel , "Rafael J. Wysocki" , 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 Subject: [PATCH 5/7] arm64: dts: apple: t8103: Add the UART PMGR tree Date: Wed, 6 Oct 2021 00:59:21 +0900 Message-Id: <20211005155923.173399-6-marcan@marcan.st> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20211005155923.173399-1-marcan@marcan.st> References: <20211005155923.173399-1-marcan@marcan.st> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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(+) 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