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[174.29.1.49]) by smtp.gmail.com with ESMTPSA id 586e51a60fabf-4a921353dcfsm7809249fac.0.2026.11.02.11.55.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Nov 2026 11:55:30 -0800 (PST) From: James Hilliard Date: Mon, 02 Nov 2026 12:55:21 -0700 Subject: [PATCH v6 6/8] dt-bindings: serial: snps-dw-apb-uart: add Allwinner A523 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20261102-submit-h616-uart-fifo-v1-v6-6-25afcb346b0c@gmail.com> References: <20261102-submit-h616-uart-fifo-v1-v6-0-25afcb346b0c@gmail.com> In-Reply-To: <20261102-submit-h616-uart-fifo-v1-v6-0-25afcb346b0c@gmail.com> To: Andy Shevchenko , =?utf-8?q?Ilpo_J=C3=A4rvinen?= , Greg Kroah-Hartman , Jiri Slaby , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland Cc: linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, James Hilliard , Krzysztof Kozlowski X-Mailer: b4 0.15.2 The A523 UART integration has different FIFO depths across its controllers and reports each controller's depth in the FIFO Clock Control register. Its receive thresholds are fractions of that depth, and its optional register layout differs from the generic DesignWare integration. Add a compatible for this integration, also used by A527 and T527, with snps,dw-apb-uart as a fallback. Acked-by: Krzysztof Kozlowski Signed-off-by: James Hilliard --- Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml b/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml index fc1289073241..ea6ce99178e3 100644 --- a/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml +++ b/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml @@ -61,6 +61,7 @@ properties: - items: - enum: - allwinner,sun50i-h616-uart + - allwinner,sun55i-a523-uart - anlogic,dr1v90-uart - brcm,bcm11351-dw-apb-uart - brcm,bcm21664-dw-apb-uart -- 2.53.0