linux-kernel - [PATCH 1/3] serial: 8250_fintek.c: Finish support for the F81865

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Message-Id: <20220311070203.18159-1-twoerner@gmail.com>
Date:   Fri, 11 Mar 2022 02:02:00 -0500
From:   Trevor Woerner <twoerner@...il.com>
To:     linux-kernel@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jirislaby@...nel.org>
Cc:     linux-serial@...r.kernel.org
Subject: [PATCH 1/3] serial: 8250_fintek.c: Finish support for the F81865

This driver only partially supports the F81865 device. The UART portions
of this SuperIO chip behave exactly like the UART of the F81866, except
that the F81866 has 128-byte FIFOs whereas the F81865 has 16-byte FIFOs.
Therefore fill out the support for the F81865 in the places where it is
missing.

Tested at 1500000 baud on the iEi NANO-PV-D5251-R10 board.

Signed-off-by: Trevor Woerner <twoerner@...il.com>
---
 drivers/tty/serial/8250/8250_fintek.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/tty/serial/8250/8250_fintek.c b/drivers/tty/serial/8250/8250_fintek.c
index 251f0018ae8c..d9f0e546b1a1 100644
--- a/drivers/tty/serial/8250/8250_fintek.c
+++ b/drivers/tty/serial/8250/8250_fintek.c
@@ -316,6 +316,7 @@ static void fintek_8250_set_termios(struct uart_port *port,
 		break;
 	case CHIP_ID_F81966:
 	case CHIP_ID_F81866:
+	case CHIP_ID_F81865:
 		reg = F81866_UART_CLK;
 		break;
 	default:
@@ -363,6 +364,7 @@ static void fintek_8250_set_termios_handler(struct uart_8250_port *uart)
 	case CHIP_ID_F81216H:
 	case CHIP_ID_F81966:
 	case CHIP_ID_F81866:
+	case CHIP_ID_F81865:
 		uart->port.set_termios = fintek_8250_set_termios;
 		break;
 
-- 
2.34.1.75.gabe6bb3905