From 3ec2ff37230e1c961d4b0d0118dd23c46b5bcdbb Mon Sep 17 00:00:00 2001
From: Jiri Slaby <jslaby@suse.cz>
Date: Thu, 10 Jun 2021 11:02:47 +0200
Subject: tty: make use of tty_get_{char,frame}_size
In the previous patch, we introduced tty_get_char_size() and
tty_get_frame_size() for computing character and frame sizes,
respectively. Here, we make use of them in various tty drivers where
applicable.
The stats look nice: 12 insertions, 169 deletions.
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: David Lin <dtwlin@gmail.com>
Cc: Johan Hovold <johan@kernel.org>
Cc: Alex Elder <elder@kernel.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
Cc: Oliver Neukum <oneukum@suse.com>
Acked-by: Alex Elder <elder@kernel.org>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20210610090247.2593-4-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/tty/serial/stm32-usart.c | 32 +-------------------------------
1 file changed, 1 insertion(+), 31 deletions(-)
(limited to 'drivers/tty/serial/stm32-usart.c')
diff --git a/drivers/tty/serial/stm32-usart.c b/drivers/tty/serial/stm32-usart.c
index cd6adb979df9..ef793b3b4591 100644
--- a/drivers/tty/serial/stm32-usart.c
+++ b/drivers/tty/serial/stm32-usart.c
@@ -718,36 +718,6 @@ static void stm32_usart_shutdown(struct uart_port *port)
free_irq(port->irq, port);
}
-static unsigned int stm32_usart_get_databits(struct ktermios *termios)
-{
- unsigned int bits;
-
- tcflag_t cflag = termios->c_cflag;
-
- switch (cflag & CSIZE) {
- /*
- * CSIZE settings are not necessarily supported in hardware.
- * CSIZE unsupported configurations are handled here to set word length
- * to 8 bits word as default configuration and to print debug message.
- */
- case CS5:
- bits = 5;
- break;
- case CS6:
- bits = 6;
- break;
- case CS7:
- bits = 7;
- break;
- /* default including CS8 */
- default:
- bits = 8;
- break;
- }
-
- return bits;
-}
-
static void stm32_usart_set_termios(struct uart_port *port,
struct ktermios *termios,
struct ktermios *old)
@@ -805,7 +775,7 @@ static void stm32_usart_set_termios(struct uart_port *port,
if (cflag & CSTOPB)
cr2 |= USART_CR2_STOP_2B;
- bits = stm32_usart_get_databits(termios);
+ bits = tty_get_char_size(cflag);
stm32_port->rdr_mask = (BIT(bits) - 1);
if (cflag & PARENB) {
--
cgit