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Mon, 15 Mar 2021 01:35:00 -0700 (PDT) From: Neil Armstrong To: gregkh@linuxfoundation.org Cc: devicetree@vger.kernel.org, linux-serial@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org, Neil Armstrong Subject: [PATCH 1/3] dt-bindings: serial: amlogic, meson-uart: add amlogic, uart-fifosize property Date: Mon, 15 Mar 2021 09:34:57 +0100 Message-Id: <20210315083459.359773-2-narmstrong@baylibre.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210315083459.359773-1-narmstrong@baylibre.com> References: <20210315083459.359773-1-narmstrong@baylibre.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210315_083507_893752_DA31E139 X-CRM114-Status: UNSURE ( 9.88 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org On most of the Amlogic SoCs, the first UART controller in the "Everything-Else" power domain has 128bytes of RX & TX FIFO, so add an optional property to describe a different FIFO size from the other ports (64bytes). Signed-off-by: Neil Armstrong Reviewed-by: Martin Blumenstingl --- .../devicetree/bindings/serial/amlogic,meson-uart.yaml | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml index 75ebc9952a99..e0a742112783 100644 --- a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml +++ b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml @@ -55,6 +55,12 @@ properties: - const: pclk - const: baud + + amlogic,uart-fifosize: + description: The fifo size supported by the UART channel. + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [64, 128] + required: - compatible - reg