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[174.29.1.49]) by smtp.gmail.com with ESMTPSA id 5614622812f47-56905736b92sm1019236b6e.8.2026.11.09.19.13.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 Nov 2026 19:13:23 -0800 (PST) From: James Hilliard Date: Mon, 09 Nov 2026 20:12:58 -0700 Subject: [PATCH v9 09/11] 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: <20261109-submit-h616-uart-fifo-v1-v9-9-3f03961dae8a@gmail.com> References: <20261109-submit-h616-uart-fifo-v1-v9-0-3f03961dae8a@gmail.com> In-Reply-To: <20261109-submit-h616-uart-fifo-v1-v9-0-3f03961dae8a@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. The receive thresholds follow the standard DesignWare FIFO-relative mapping, while the 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