linux-kernel - [PATCH v2 5/7] tty: serial: meson: add independent uart

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Date:   Wed, 5 Jul 2023 21:18:31 +0300
From:   Dmitry Rokosov <ddrokosov@...rdevices.ru>
To:     <gregkh@...uxfoundation.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
        <neil.armstrong@...aro.org>, <jbrunet@...libre.com>,
        <jirislaby@...nel.org>, <khilman@...libre.com>,
        <martin.blumenstingl@...glemail.com>
CC:     <kelvin.zhang@...ogic.com>, <xianwei.zhao@...ogic.com>,
        <kernel@...rdevices.ru>, <rockosov@...il.com>,
        <linux-amlogic@...ts.infradead.org>,
        <linux-serial@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        Dmitry Rokosov <ddrokosov@...rdevices.ru>
Subject: [PATCH v2 5/7] tty: serial: meson: add independent uart_data for A1 SoC family

Implement separate uart_data to ensure proper devname value for the A1
SoC family. Use 'ttyS' devname, as required by the A1 architecture,
instead of the legacy gx architecture.

Signed-off-by: Dmitry Rokosov <ddrokosov@...rdevices.ru>
---
 drivers/tty/serial/meson_uart.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/tty/serial/meson_uart.c b/drivers/tty/serial/meson_uart.c
index 6a63184b8091..84cf10b0ca5c 100644
--- a/drivers/tty/serial/meson_uart.c
+++ b/drivers/tty/serial/meson_uart.c
@@ -818,6 +818,11 @@ static struct meson_uart_data meson_g12a_uart_data = {
 	.has_xtal_div2 = true,
 };
 
+static struct meson_uart_data meson_a1_uart_data = {
+	.uart_driver = &MESON_UART_DRIVER(ttyS),
+	.has_xtal_div2 = false,
+};
+
 static struct meson_uart_data meson_s4_uart_data = {
 	.uart_driver = &MESON_UART_DRIVER(ttyS),
 	.has_xtal_div2 = true,
@@ -836,6 +841,10 @@ static const struct of_device_id meson_uart_dt_match[] = {
 		.compatible = "amlogic,meson-s4-uart",
 		.data = (void *)&meson_s4_uart_data,
 	},
+	{
+		.compatible = "amlogic,meson-a1-uart",
+		.data = (void *)&meson_a1_uart_data,
+	},
 	{ /* sentinel */ },
 };
 MODULE_DEVICE_TABLE(of, meson_uart_dt_match);
-- 
2.36.0