linux-kernel - [RFT PATCH v3 1/4] ARM: dts: exynos: add unit address to DWC3 node wrapper in Exynos5250

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Message-Id: <20230127212713.267014-1-krzysztof.kozlowski@linaro.org>
Date:   Fri, 27 Jan 2023 22:27:10 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     replicant@...osl.org, phone-devel@...r.kernel.org,
        ~postmarketos/upstreaming@...ts.sr.ht,
        Martin Jücker <martin.juecker@...il.com>,
        Henrik Grimler <henrik@...mler.se>,
        Sam Protsenko <semen.protsenko@...aro.org>,
        Chanho Park <chanho61.park@...sung.com>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [RFT PATCH v3 1/4] ARM: dts: exynos: add unit address to DWC3 node wrapper in Exynos5250

Neither simple-bus bindings nor dtc W=1 accept device nodes in soc@ node
which do not have unit address.  Therefore usethe address space
of child device (actual DWC3 Controller) as the wrapper's address to
fix:

  exynos5250-smdk5250.dtb: soc: usb3: {'compatible': ['samsung,exynos5250-dwusb3'],
    ... } should not be valid under {'type': 'object'}

  exynos5250.dtsi:638.16-653.5: Warning (simple_bus_reg): /soc/usb3: missing or empty reg/ranges property

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

---

Changes since v1:
1. Use ranges with values and drop reg from usb-wrapper node.
2. Keep "usb" as wrapper's node name.
---
 arch/arm/boot/dts/exynos5250.dtsi | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index 97e89859ba3d..a5db4ac213d5 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -635,17 +635,17 @@ i2s2: i2s@...70000 {
 			#sound-dai-cells = <1>;
 		};
 
-		usbdrd: usb3 {
+		usbdrd: usb@...00000 {
 			compatible = "samsung,exynos5250-dwusb3";
 			clocks = <&clock CLK_USB3>;
 			clock-names = "usbdrd30";
 			#address-cells = <1>;
 			#size-cells = <1>;
-			ranges;
+			ranges = <0x0 0x12000000 0x10000>;
 
-			usbdrd_dwc3: usb@...00000 {
+			usbdrd_dwc3: usb@0 {
 				compatible = "snps,dwc3";
-				reg = <0x12000000 0x10000>;
+				reg = <0x0 0x10000>;
 				interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
 				phys = <&usbdrd_phy 0>, <&usbdrd_phy 1>;
 				phy-names = "usb2-phy", "usb3-phy";
-- 
2.34.1