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tty: serial: meson: Added S4 SOC compatibility 

Make UART driver compatible with S4 SOC UART. Meanwhile, the S4 SOC
UART uses 12MHz as the clock source for baud rate calculations.

Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Yu Tu <yu.tu@amlogic.com>
Link: https://lore.kernel.org/r/20220422111320.19234-3-yu.tu@amlogic.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Yu Tu 2022-04-22 19:13:20 +08:00 committed by Greg Kroah-Hartman
parent 00a7fa836d
commit 9b92cc5ee2
1 changed files with 8 additions and 0 deletions
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8
drivers/tty/serial/meson_uart.c
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@ -790,11 +790,19 @@ static int meson_uart_remove(struct platform_device *pdev)
return 0;
}
static struct meson_uart_data s4_uart_data = {
.has_xtal_div2 = true,
};
static const struct of_device_id meson_uart_dt_match[] = {
{ .compatible = "amlogic,meson6-uart" },
{ .compatible = "amlogic,meson8-uart" },
{ .compatible = "amlogic,meson8b-uart" },
{ .compatible = "amlogic,meson-gx-uart" },
{
.compatible = "amlogic,meson-s4-uart",
.data = (void *)&s4_uart_data,
},
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(of, meson_uart_dt_match);