linux-kernel - [PATCH 3/6] dt-bindings: serial: samsung: add specific compatible for Tesla FSD

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Message-Id: <20231205092229.19135-4-krzysztof.kozlowski@linaro.org>
Date:   Tue,  5 Dec 2023 10:22:26 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Andi Shyti <andi.shyti@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jirislaby@...nel.org>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Guenter Roeck <linux@...ck-us.net>, linux-fsd@...la.com,
        linux-i2c@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-pwm@...r.kernel.org, linux-serial@...r.kernel.org,
        linux-watchdog@...r.kernel.org
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH 3/6] dt-bindings: serial: samsung: add specific compatible for Tesla FSD

Tesla FSD is a derivative of Samsung Exynos SoC, thus just like the
others it reuses several devices from older designs.  Historically we
kept the old (block's) compatible only.  This works fine and there is no
bug here, however guidelines expressed in
Documentation/devicetree/bindings/writing-bindings.rst state that:
1. Compatibles should be specific.
2. We should add new compatibles in case of bugs or features.

Add Tesla FSD compatible specific to be used with an existing fallback.

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

---

I propose to take the patch through Samsung SoC (me). See cover letter
for explanation.
---
 Documentation/devicetree/bindings/serial/samsung_uart.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/serial/samsung_uart.yaml b/Documentation/devicetree/bindings/serial/samsung_uart.yaml
index e32c1b462836..4b6fc82c2edf 100644
--- a/Documentation/devicetree/bindings/serial/samsung_uart.yaml
+++ b/Documentation/devicetree/bindings/serial/samsung_uart.yaml
@@ -29,6 +29,7 @@ properties:
       - items:
           - enum:
               - samsung,exynos7-uart
+              - tesla,fsd-uart
           - const: samsung,exynos4210-uart
       - items:
           - enum:
-- 
2.34.1