linux-kernel - [PATCH v3 2/9] ARM: dts: r9a06g032: Add dependency to sysctrl in the PCI bridge

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Message-Id: <20221207162435.1001782-3-herve.codina@bootlin.com>
Date:   Wed,  7 Dec 2022 17:24:28 +0100
From:   Herve Codina <herve.codina@...tlin.com>
To:     Geert Uytterhoeven <geert+renesas@...der.be>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Herve Codina <herve.codina@...tlin.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Magnus Damm <magnus.damm@...il.com>,
        Gareth Williams <gareth.williams.jx@...esas.com>
Cc:     linux-renesas-soc@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>
Subject: [PATCH v3 2/9] ARM: dts: r9a06g032: Add dependency to sysctrl in the PCI bridge

In r9a06g032 (RZ/N1 SoC family), the USB hosts are impacted by
the h2mode setting. This setting will be done at sysctrl level
and must not be done while USB hosts are running.

Express this dependency using 'depends-on' property.

Signed-off-by: Herve Codina <herve.codina@...tlin.com>
---
 arch/arm/boot/dts/r9a06g032.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/r9a06g032.dtsi b/arch/arm/boot/dts/r9a06g032.dtsi
index 563024c9a4ae..401c88bcdd51 100644
--- a/arch/arm/boot/dts/r9a06g032.dtsi
+++ b/arch/arm/boot/dts/r9a06g032.dtsi
@@ -125,6 +125,7 @@ pci_usb: pci@...30000 {
 				 <&sysctrl R9A06G032_CLK_PCI_USB>;
 			clock-names = "hclkh", "hclkpm", "pciclk";
 			power-domains = <&sysctrl>;
+			depends-on = <&sysctrl>;
 			reg = <0x40030000 0xc00>,
 			      <0x40020000 0x1100>;
 			interrupts = <GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>;
-- 
2.38.1