From: Neil Armstrong <narmstrong@baylibre.com>
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 <narmstrong@baylibre.com>
Subject: [PATCH 1/3] dt-bindings: serial: amlogic, meson-uart: add amlogic, uart-fifosize property
Date: Mon, 15 Mar 2021 09:34:57 +0100 [thread overview]
Message-ID: <20210315083459.359773-2-narmstrong@baylibre.com> (raw)
In-Reply-To: <20210315083459.359773-1-narmstrong@baylibre.com>
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 <narmstrong@baylibre.com>
---
.../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
--
2.25.1
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next prev parent reply other threads:[~2021-03-15 8:36 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-15 8:34 [PATCH 0/3] tty: serial: meson: add amlogic,uart-fifosize property Neil Armstrong
2021-03-15 8:34 ` Neil Armstrong [this message]
2021-03-23 21:33 ` [PATCH 1/3] dt-bindings: serial: amlogic, meson-uart: add amlogic, uart-fifosize property Martin Blumenstingl
2021-03-24 17:40 ` Rob Herring
2021-03-15 8:34 ` [PATCH 2/3] tty: serial: meson: retrieve port FIFO size from DT Neil Armstrong
2021-03-16 0:26 ` Kevin Hilman
2021-03-23 21:34 ` Martin Blumenstingl
2021-03-15 8:34 ` [PATCH 3/3] arm64: dts: meson: set 128bytes FIFO size on uart A Neil Armstrong
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