From: Jiri Slaby <jslaby@suse.cz>
To: gregkh@linuxfoundation.org
Cc: linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org,
Jiri Slaby <jslaby@suse.cz>,
Laxman Dewangan <ldewangan@nvidia.com>,
Thierry Reding <thierry.reding@gmail.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
linux-tegra@vger.kernel.org
Subject: [PATCH 2/5] tty: serial: make use of UART_LCR_WLEN() + tty_get_char_size()
Date: Thu, 24 Feb 2022 10:55:55 +0100 [thread overview]
Message-ID: <20220224095558.30929-2-jslaby@suse.cz> (raw)
In-Reply-To: <20220224095558.30929-1-jslaby@suse.cz>
Having a generic UART_LCR_WLEN() macro and the tty_get_char_size()
helper, we can remove all those repeated switch-cases in drivers.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Laxman Dewangan <ldewangan@nvidia.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Cc: linux-tegra@vger.kernel.org
---
drivers/tty/serial/8250/8250_omap.c | 16 +---------------
drivers/tty/serial/8250/8250_port.c | 16 +---------------
drivers/tty/serial/jsm/jsm_cls.c | 16 +---------------
drivers/tty/serial/jsm/jsm_neo.c | 16 +---------------
drivers/tty/serial/omap-serial.c | 16 +---------------
drivers/tty/serial/pxa.c | 16 +---------------
drivers/tty/serial/serial-tegra.c | 22 ++++------------------
drivers/tty/serial/vr41xx_siu.c | 15 +--------------
8 files changed, 11 insertions(+), 122 deletions(-)
diff --git a/drivers/tty/serial/8250/8250_omap.c b/drivers/tty/serial/8250/8250_omap.c
index 73e5f1dbd075..ac8bfa042391 100644
--- a/drivers/tty/serial/8250/8250_omap.c
+++ b/drivers/tty/serial/8250/8250_omap.c
@@ -357,21 +357,7 @@ static void omap_8250_set_termios(struct uart_port *port,
unsigned char cval = 0;
unsigned int baud;
- switch (termios->c_cflag & CSIZE) {
- case CS5:
- cval = UART_LCR_WLEN5;
- break;
- case CS6:
- cval = UART_LCR_WLEN6;
- break;
- case CS7:
- cval = UART_LCR_WLEN7;
- break;
- default:
- case CS8:
- cval = UART_LCR_WLEN8;
- break;
- }
+ cval = UART_LCR_WLEN(tty_get_char_size(termios->c_cflag));
if (termios->c_cflag & CSTOPB)
cval |= UART_LCR_STOP;
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c
index 863f38e036a7..8642f02e4f05 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -2590,21 +2590,7 @@ static unsigned char serial8250_compute_lcr(struct uart_8250_port *up,
{
unsigned char cval;
- switch (c_cflag & CSIZE) {
- case CS5:
- cval = UART_LCR_WLEN5;
- break;
- case CS6:
- cval = UART_LCR_WLEN6;
- break;
- case CS7:
- cval = UART_LCR_WLEN7;
- break;
- default:
- case CS8:
- cval = UART_LCR_WLEN8;
- break;
- }
+ cval = UART_LCR_WLEN(tty_get_char_size(c_cflag));
if (c_cflag & CSTOPB)
cval |= UART_LCR_STOP;
diff --git a/drivers/tty/serial/jsm/jsm_cls.c b/drivers/tty/serial/jsm/jsm_cls.c
index b507a2cec926..b280da50290c 100644
--- a/drivers/tty/serial/jsm/jsm_cls.c
+++ b/drivers/tty/serial/jsm/jsm_cls.c
@@ -737,21 +737,7 @@ static void cls_param(struct jsm_channel *ch)
if (ch->ch_c_cflag & CSTOPB)
lcr |= UART_LCR_STOP;
- switch (ch->ch_c_cflag & CSIZE) {
- case CS5:
- lcr |= UART_LCR_WLEN5;
- break;
- case CS6:
- lcr |= UART_LCR_WLEN6;
- break;
- case CS7:
- lcr |= UART_LCR_WLEN7;
- break;
- case CS8:
- default:
- lcr |= UART_LCR_WLEN8;
- break;
- }
+ lcr |= UART_LCR_WLEN(tty_get_char_size(ch->ch_c_cflag));
ier = readb(&ch->ch_cls_uart->ier);
uart_lcr = readb(&ch->ch_cls_uart->lcr);
diff --git a/drivers/tty/serial/jsm/jsm_neo.c b/drivers/tty/serial/jsm/jsm_neo.c
index c6f927a76c3b..c4fd31de04b4 100644
--- a/drivers/tty/serial/jsm/jsm_neo.c
+++ b/drivers/tty/serial/jsm/jsm_neo.c
@@ -1008,21 +1008,7 @@ static void neo_param(struct jsm_channel *ch)
if (ch->ch_c_cflag & CSTOPB)
lcr |= UART_LCR_STOP;
- switch (ch->ch_c_cflag & CSIZE) {
- case CS5:
- lcr |= UART_LCR_WLEN5;
- break;
- case CS6:
- lcr |= UART_LCR_WLEN6;
- break;
- case CS7:
- lcr |= UART_LCR_WLEN7;
- break;
- case CS8:
- default:
- lcr |= UART_LCR_WLEN8;
- break;
- }
+ lcr |= UART_LCR_WLEN(tty_get_char_size(ch->ch_c_cflag));
ier = readb(&ch->ch_neo_uart->ier);
uart_lcr = readb(&ch->ch_neo_uart->lcr);
diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index 7074670cf81d..8d5ffa196097 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -808,21 +808,7 @@ serial_omap_set_termios(struct uart_port *port, struct ktermios *termios,
unsigned long flags;
unsigned int baud, quot;
- switch (termios->c_cflag & CSIZE) {
- case CS5:
- cval = UART_LCR_WLEN5;
- break;
- case CS6:
- cval = UART_LCR_WLEN6;
- break;
- case CS7:
- cval = UART_LCR_WLEN7;
- break;
- default:
- case CS8:
- cval = UART_LCR_WLEN8;
- break;
- }
+ cval = UART_LCR_WLEN(tty_get_char_size(termios->c_cflag));
if (termios->c_cflag & CSTOPB)
cval |= UART_LCR_STOP;
diff --git a/drivers/tty/serial/pxa.c b/drivers/tty/serial/pxa.c
index 5d7b7e56661f..e80ba8e10407 100644
--- a/drivers/tty/serial/pxa.c
+++ b/drivers/tty/serial/pxa.c
@@ -430,21 +430,7 @@ serial_pxa_set_termios(struct uart_port *port, struct ktermios *termios,
unsigned int baud, quot;
unsigned int dll;
- switch (termios->c_cflag & CSIZE) {
- case CS5:
- cval = UART_LCR_WLEN5;
- break;
- case CS6:
- cval = UART_LCR_WLEN6;
- break;
- case CS7:
- cval = UART_LCR_WLEN7;
- break;
- default:
- case CS8:
- cval = UART_LCR_WLEN8;
- break;
- }
+ cval = UART_LCR_WLEN(tty_get_char_size(termios->c_cflag));
if (termios->c_cflag & CSTOPB)
cval |= UART_LCR_STOP;
diff --git a/drivers/tty/serial/serial-tegra.c b/drivers/tty/serial/serial-tegra.c
index b6223fab0687..d942ab152f5a 100644
--- a/drivers/tty/serial/serial-tegra.c
+++ b/drivers/tty/serial/serial-tegra.c
@@ -1277,6 +1277,7 @@ static void tegra_uart_set_termios(struct uart_port *u,
unsigned int baud;
unsigned long flags;
unsigned int lcr;
+ unsigned char char_bits;
int symb_bit = 1;
struct clk *parent_clk = clk_get_parent(tup->uart_clk);
unsigned long parent_clk_rate = clk_get_rate(parent_clk);
@@ -1316,25 +1317,10 @@ static void tegra_uart_set_termios(struct uart_port *u,
}
}
+ char_bits = tty_get_char_size(termios->c_cflag);
+ symb_bit += char_bits;
lcr &= ~UART_LCR_WLEN8;
- switch (termios->c_cflag & CSIZE) {
- case CS5:
- lcr |= UART_LCR_WLEN5;
- symb_bit += 5;
- break;
- case CS6:
- lcr |= UART_LCR_WLEN6;
- symb_bit += 6;
- break;
- case CS7:
- lcr |= UART_LCR_WLEN7;
- symb_bit += 7;
- break;
- default:
- lcr |= UART_LCR_WLEN8;
- symb_bit += 8;
- break;
- }
+ lcr |= UART_LCR_WLEN(char_bits);
/* Stop bits */
if (termios->c_cflag & CSTOPB) {
diff --git a/drivers/tty/serial/vr41xx_siu.c b/drivers/tty/serial/vr41xx_siu.c
index 6b303af5ee54..e0bf003ca3a1 100644
--- a/drivers/tty/serial/vr41xx_siu.c
+++ b/drivers/tty/serial/vr41xx_siu.c
@@ -504,20 +504,7 @@ static void siu_set_termios(struct uart_port *port, struct ktermios *new,
unsigned long flags;
c_cflag = new->c_cflag;
- switch (c_cflag & CSIZE) {
- case CS5:
- lcr = UART_LCR_WLEN5;
- break;
- case CS6:
- lcr = UART_LCR_WLEN6;
- break;
- case CS7:
- lcr = UART_LCR_WLEN7;
- break;
- default:
- lcr = UART_LCR_WLEN8;
- break;
- }
+ lcr = UART_LCR_WLEN(tty_get_char_size(c_cflag));
if (c_cflag & CSTOPB)
lcr |= UART_LCR_STOP;
--
2.35.1
next parent reply other threads:[~2022-02-24 9:56 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20220224095517.30872-1-jslaby@suse.cz>
[not found] ` <20220224095558.30929-1-jslaby@suse.cz>
2022-02-24 9:55 ` Jiri Slaby [this message]
2022-02-24 16:38 ` [PATCH 2/5] tty: serial: make use of UART_LCR_WLEN() + tty_get_char_size() Thierry Reding
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20220224095558.30929-2-jslaby@suse.cz \
--to=jslaby@suse.cz \
--cc=gregkh@linuxfoundation.org \
--cc=jonathanh@nvidia.com \
--cc=ldewangan@nvidia.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-serial@vger.kernel.org \
--cc=linux-tegra@vger.kernel.org \
--cc=thierry.reding@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox