linux-kernel - [PATCH v2] dt-bindings: serial: samsung: add exynos7870-uart compatible

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Message-Id: <20250219-exynos7870-uart-v2-1-c8c67f3a936c@disroot.org>
Date: Wed, 19 Feb 2025 00:22:43 +0530
From: Kaustabh Chakraborty <kauschluss@...root.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Jiri Slaby <jirislaby@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: Krzysztof Kozlowski <krzk@...nel.org>, linux-kernel@...r.kernel.org, 
 linux-serial@...r.kernel.org, devicetree@...r.kernel.org, 
 Kaustabh Chakraborty <kauschluss@...root.org>
Subject: [PATCH v2] dt-bindings: serial: samsung: add exynos7870-uart
 compatible

Document the compatible string for Exynos7870's UART driver. The
devicetree property samsung,uart-fifosize must be mandatory, as the
driver enquires about the FIFO sizes. This feature makes it compatible
with Exynos8895's UART.

Signed-off-by: Kaustabh Chakraborty <kauschluss@...root.org>
---
This patch series is a part of Exynos7870 upstreaming.
---
Changes in v2:
- Modify UART compatible to now fallback Exynos8895 UART.
- Remove the UART driver patch, no longer needed.
- Link to v1: https://lore.kernel.org/r/20250204-exynos7870-uart-v1-0-06be6aa96284@disroot.org
---
 Documentation/devicetree/bindings/serial/samsung_uart.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/serial/samsung_uart.yaml b/Documentation/devicetree/bindings/serial/samsung_uart.yaml
index 070eba9f19d3e039090c58a82f93d02eed58ab84..83d9986d8e98a2a55615d15383c9c7fc89f5b52f 100644
--- a/Documentation/devicetree/bindings/serial/samsung_uart.yaml
+++ b/Documentation/devicetree/bindings/serial/samsung_uart.yaml
@@ -42,6 +42,10 @@ properties:
               - samsung,exynosautov9-uart
               - samsung,exynosautov920-uart
           - const: samsung,exynos850-uart
+      - items:
+          - enum:
+              - samsung,exynos7870-uart
+          - const: samsung,exynos8895-uart
 
   reg:
     maxItems: 1

---
base-commit: e5d3fd687aac5eceb1721fa92b9f49afcf4c3717
change-id: 20250203-exynos7870-uart-62f64cea2489

Best regards,
-- 
Kaustabh Chakraborty <kauschluss@...root.org>