tty: serial: meson: Add a new compatible string for the G12A SoC

Amlogic Meson G12A (and later) SoCs also have the "divide XTAL by 2" bit
as the S4 UART controllers. Add a new compatible string for these SoCs
and enable the has_xtal_div2 flag for them.

Tested-by: Christian Hewitt <christianshewitt@gmail.com>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20230307222651.2106615-3-martin.blumenstingl@googlemail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/meson_uart.c b/drivers/tty/serial/meson_uart.c
index 74110017988a8b65aa16f6afafec297c5faf7377..2501db5a7aaf7aded590f7e96f66f794a2d60363 100644 (file)
--- a/drivers/tty/serial/meson_uart.c
+++ b/drivers/tty/serial/meson_uart.c
@@ -779,7 +779,7 @@ static int meson_uart_remove(struct platform_device *pdev)
        return 0;
 }
 
-static struct meson_uart_data s4_uart_data = {
+static struct meson_uart_data meson_g12a_uart_data = {
        .has_xtal_div2 = true,
 };
 
@@ -788,9 +788,13 @@ static const struct of_device_id meson_uart_dt_match[] = {
        { .compatible = "amlogic,meson8-uart" },
        { .compatible = "amlogic,meson8b-uart" },
        { .compatible = "amlogic,meson-gx-uart" },
+       {
+               .compatible = "amlogic,meson-g12a-uart",
+               .data = (void *)&meson_g12a_uart_data,
+       },
        {
                .compatible = "amlogic,meson-s4-uart",
-               .data = (void *)&s4_uart_data,
+               .data = (void *)&meson_g12a_uart_data,
        },
        { /* sentinel */ },
 };