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From:   Stanley Chang <stanley_chang@realtek.com>
To:     Thinh Nguyen <Thinh.Nguyen@synopsys.com>
CC:     Stanley Chang <stanley_chang@realtek.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Rob Herring <robh+dt@kernel.org>,
        "Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>,
        Felipe Balbi <balbi@kernel.org>, <linux-usb@vger.kernel.org>,
        <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: [PATCH v4 2/2] dt-bindings: usb: snps,dwc3: Add the compatible name 'snps,dwc3-rtk-soc'
Date:   Tue, 2 May 2023 13:04:47 +0800
Message-ID: <20230502050452.27276-2-stanley_chang@realtek.com>
In-Reply-To: <20230502050452.27276-1-stanley_chang@realtek.com>
References: <20230502050452.27276-1-stanley_chang@realtek.com>
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Add a new compatible name 'snps,dwc3-rtk-soc' of DT for realtek dwc3
core to adjust the global register start address

The RTK DHC SoCs were designed, the global register address offset at
0x8100. The default address offset is constant at DWC3_GLOBALS_REGS_START
(0xc100). Therefore, add the compatible name of device-tree to specify
the SoC custom's global register start address.

Signed-off-by: Stanley Chang <stanley_chang@realtek.com>
---
 v3 to v4 change:
Use the compatible name to specify the global register address offset.
If the compatible name is "snps,dwc3-rtk-soc", then the offset use 0x8100.
Otherwise, the offset is default value 0xc100.

 v2 to v3 change:
1.  Fix the dtschema validation error.

 v1 to v2 change:
1. Change the name of the property "snps,global-regs-starting-offset".
2. Adjust the format of comment.
3. Add initial value of the global_regs_starting_offset
4. Remove the log of dev_info.
---
 Documentation/devicetree/bindings/usb/snps,dwc3.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
index 50edc4da780e..40d9a461ed93 100644
--- a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
+++ b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
@@ -33,6 +33,7 @@ properties:
     contains:
       oneOf:
         - const: snps,dwc3
+        - const: snps,dwc3-rtk-soc
         - const: synopsys,dwc3
           deprecated: true
 
-- 
2.34.1