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authorLinus Torvalds <torvalds@linux-foundation.org>2021-07-05 14:08:24 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-07-05 14:08:24 -0700
commitc932ed0adb09a7fa6d6649ee04dd78c83ab07ada (patch)
tree02b055bd7b350e7aca9104a9c69330896bb6382b /drivers/staging/greybus
parenta16d8644bad461bb073b92e812080ea6715ddf2b (diff)
parent15279ebe99d7c6142d9f1a6ae4ded66c0f168678 (diff)
Merge tag 'tty-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty / serial updates from Greg KH: "Here is the big set of tty and serial driver patches for 5.14-rc1. A bit more than normal, but nothing major, lots of cleanups. Highlights are: - lots of tty api cleanups and mxser driver cleanups from Jiri - build warning fixes - various serial driver updates - coding style cleanups - various tty driver minor fixes and updates - removal of broken and disable r3964 line discipline (finally!) All of these have been in linux-next for a while with no reported issues" * tag 'tty-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (227 commits) serial: mvebu-uart: remove unused member nb from struct mvebu_uart arm64: dts: marvell: armada-37xx: Fix reg for standard variant of UART dt-bindings: mvebu-uart: fix documentation serial: mvebu-uart: correctly calculate minimal possible baudrate serial: mvebu-uart: do not allow changing baudrate when uartclk is not available serial: mvebu-uart: fix calculation of clock divisor tty: make linux/tty_flip.h self-contained serial: Prefer unsigned int to bare use of unsigned serial: 8250: 8250_omap: Fix possible interrupt storm on K3 SoCs serial: qcom_geni_serial: use DT aliases according to DT bindings Revert "tty: serial: Add UART driver for Cortina-Access platform" tty: serial: Add UART driver for Cortina-Access platform MAINTAINERS: add me back as mxser maintainer mxser: Documentation, fix typos mxser: Documentation, make the docs up-to-date mxser: Documentation, remove traces of callout device mxser: introduce mxser_16550A_or_MUST helper mxser: rename flags to old_speed in mxser_set_serial_info mxser: use port variable in mxser_set_serial_info mxser: access info->MCR under info->slock ...
Diffstat (limited to 'drivers/staging/greybus')
-rw-r--r--drivers/staging/greybus/uart.c22
1 files changed, 4 insertions, 18 deletions
diff --git a/drivers/staging/greybus/uart.c b/drivers/staging/greybus/uart.c
index b1e63f7798b0..73f01ed1e5b7 100644
--- a/drivers/staging/greybus/uart.c
+++ b/drivers/staging/greybus/uart.c
@@ -440,7 +440,7 @@ static int gb_tty_write(struct tty_struct *tty, const unsigned char *buf,
return count;
}
-static int gb_tty_write_room(struct tty_struct *tty)
+static unsigned int gb_tty_write_room(struct tty_struct *tty)
{
struct gb_tty *gb_tty = tty->driver_data;
unsigned long flags;
@@ -457,11 +457,11 @@ static int gb_tty_write_room(struct tty_struct *tty)
return room;
}
-static int gb_tty_chars_in_buffer(struct tty_struct *tty)
+static unsigned int gb_tty_chars_in_buffer(struct tty_struct *tty)
{
struct gb_tty *gb_tty = tty->driver_data;
unsigned long flags;
- int chars;
+ unsigned int chars;
spin_lock_irqsave(&gb_tty->write_lock, flags);
chars = kfifo_len(&gb_tty->write_fifo);
@@ -494,21 +494,7 @@ static void gb_tty_set_termios(struct tty_struct *tty,
(termios->c_cflag & PARODD ? 1 : 2) +
(termios->c_cflag & CMSPAR ? 2 : 0) : 0;
- switch (termios->c_cflag & CSIZE) {
- case CS5:
- newline.data_bits = 5;
- break;
- case CS6:
- newline.data_bits = 6;
- break;
- case CS7:
- newline.data_bits = 7;
- break;
- case CS8:
- default:
- newline.data_bits = 8;
- break;
- }
+ newline.data_bits = tty_get_char_size(termios->c_cflag);
/* FIXME: needs to clear unsupported bits in the termios */
gb_tty->clocal = ((termios->c_cflag & CLOCAL) != 0);

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