linux-kernel - [PATCH v2 4/7] tty: serial: meson: introduce separate uart

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Message-ID: <20230705181833.16137-5-ddrokosov@sberdevices.ru>
Date:   Wed, 5 Jul 2023 21:18:30 +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 4/7] tty: serial: meson: introduce separate uart_data for S4 SoC family

In order to use the correct devname value for the S4 SoC family, it
is imperative that we implement separate uart_data. Unlike the legacy
g12a architecture, the S4 architecture should employ the use of 'ttyS'
devname.

Signed-off-by: Dmitry Rokosov <ddrokosov@...rdevices.ru>
---
 drivers/tty/serial/meson_uart.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/serial/meson_uart.c b/drivers/tty/serial/meson_uart.c
index ad0748a10db7..6a63184b8091 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_s4_uart_data = {
+	.uart_driver = &MESON_UART_DRIVER(ttyS),
+	.has_xtal_div2 = true,
+};
+
 static const struct of_device_id meson_uart_dt_match[] = {
 	{ .compatible = "amlogic,meson6-uart" },
 	{ .compatible = "amlogic,meson8-uart" },
@@ -829,7 +834,7 @@ static const struct of_device_id meson_uart_dt_match[] = {
 	},
 	{
 		.compatible = "amlogic,meson-s4-uart",
-		.data = (void *)&meson_g12a_uart_data,
+		.data = (void *)&meson_s4_uart_data,
 	},
 	{ /* sentinel */ },
 };
-- 
2.36.0