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Date: Mon, 25 Oct 2021 23:47:16 +0900 From: Hector Martin <marcan@...can.st> To: linux-arm-kernel@...ts.infradead.org Cc: Hector Martin <marcan@...can.st>, Marc Zyngier <maz@...nel.org>, Rob Herring <robh+dt@...nel.org>, Arnd Bergmann <arnd@...nel.org>, Linus Walleij <linus.walleij@...aro.org>, Alyssa Rosenzweig <alyssa@...enzweig.io>, Krzysztof Kozlowski <krzk@...nel.org>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Mark Kettenis <mark.kettenis@...all.nl>, Philipp Zabel <p.zabel@...gutronix.de>, "Rafael J. Wysocki" <rafael@...nel.org>, Johan Hovold <johan@...nel.org>, devicetree@...r.kernel.org, linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org, linux-serial@...r.kernel.org, Mark Kettenis <kettenis@...nbsd.org> Subject: [PATCH v2 6/8] arm64: dts: apple: t8103: Add the UART PMGR tree 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. Reviewed-by: Mark Kettenis <kettenis@...nbsd.org> Signed-off-by: Hector Martin <marcan@...can.st> --- 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..1d0fac1747c7 100644 --- a/arch/arm64/boot/dts/apple/t8103.dtsi +++ b/arch/arm64/boot/dts/apple/t8103.dtsi @@ -122,6 +122,7 @@ serial0: serial@...200000 { */ clocks = <&clkref>, <&clkref>; clock-names = "uart", "clk_uart_baud0"; + power-domains = <&ps_uart0>; status = "disabled"; }; @@ -131,5 +132,120 @@ aic: interrupt-controller@...100000 { interrupt-controller; reg = <0x2 0x3b100000 0x0 0x8000>; }; + + pmgr: power-management@...700000 { + 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>; + label = "sio_busif"; + }; + + ps_sio: power-controller@1c8 { + compatible = "apple,t8103-pmgr-pwrstate", "apple,pmgr-pwrstate"; + reg = <0x1c8>; + #power-domain-cells = <0>; + #reset-cells = <0>; + label = "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>; + label = "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>; + label = "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>; + label = "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>; + label = "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>; + label = "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>; + label = "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>; + label = "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>; + label = "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>; + label = "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>; + label = "uart8"; + power-domains = <&ps_uart_p>; + }; + }; }; }; -- 2.33.0
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