linux-kernel - [PATCH 0/3] tty: serial: meson: add amlogic,uart-fifosize property

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Message-Id: <20210518075833.3736038-1-narmstrong@baylibre.com>
Date:   Tue, 18 May 2021 09:58:30 +0200
From:   Neil Armstrong <narmstrong@...libre.com>
To:     gregkh@...uxfoundation.org, jirislaby@...nel.org
Cc:     linux-serial@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Neil Armstrong <narmstrong@...libre.com>
Subject: [PATCH 0/3] tty: serial: meson: add amlogic,uart-fifosize property

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).

This adds a property in the bindings, reads the property from the driver and updates
the DT with the new property.

Changes since v2:
- removed spurious blank line from bindings

Changes since v1:
- switched to a more generic "fifo-size"

Neil Armstrong (3):
  dt-bindings: serial: amlogic,meson-uart: add fifo-size property
  tty: serial: meson: retrieve port FIFO size from DT
  arm64: dts: meson: set 128bytes FIFO size on uart A

 .../devicetree/bindings/serial/amlogic,meson-uart.yaml       | 5 +++++
 arch/arm64/boot/dts/amlogic/meson-axg.dtsi                   | 1 +
 arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi            | 1 +
 arch/arm64/boot/dts/amlogic/meson-gx.dtsi                    | 1 +
 drivers/tty/serial/meson_uart.c                              | 5 ++++-
 5 files changed, 12 insertions(+), 1 deletion(-)

-- 
2.25.1