From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pascal JEAN Subject: [PATCH 1/2] sc16is7xx: fix RTS/CTS implementation Date: Wed, 27 Jul 2016 22:58:42 +0200 Message-ID: <1469653123-21867-2-git-send-email-epsilonrt@gmail.com> References: <1469653123-21867-1-git-send-email-epsilonrt@gmail.com> Return-path: In-Reply-To: <1469653123-21867-1-git-send-email-epsilonrt@gmail.com> Sender: linux-kernel-owner@vger.kernel.org To: gregkh@linuxfoundation.org Cc: jslaby@suse.com, linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org, Pascal JEAN List-Id: linux-serial@vger.kernel.org Signed-off-by: Pascal JEAN --- drivers/tty/serial/sc16is7xx.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c index f36e6df..3e65079 100644 --- a/drivers/tty/serial/sc16is7xx.c +++ b/drivers/tty/serial/sc16is7xx.c @@ -511,16 +511,18 @@ static int sc16is7xx_set_baud(struct uart_port *port, int baud) /* Enable enhanced features */ regcache_cache_bypass(s->regmap, true); - sc16is7xx_port_write(port, SC16IS7XX_EFR_REG, - SC16IS7XX_EFR_ENABLE_BIT); + sc16is7xx_port_update(port, SC16IS7XX_EFR_REG, + SC16IS7XX_EFR_ENABLE_BIT, + SC16IS7XX_EFR_ENABLE_BIT); + sc16is7xx_port_update(port, SC16IS7XX_MCR_REG, + SC16IS7XX_MCR_CLKSEL_BIT, + prescaler); + sc16is7xx_port_update(port, SC16IS7XX_EFR_REG, + SC16IS7XX_EFR_ENABLE_BIT, 0); regcache_cache_bypass(s->regmap, false); /* Put LCR back to the normal mode */ sc16is7xx_port_write(port, SC16IS7XX_LCR_REG, lcr); - sc16is7xx_port_update(port, SC16IS7XX_MCR_REG, - SC16IS7XX_MCR_CLKSEL_BIT, - prescaler); /* Open the LCR divisors for configuration */ sc16is7xx_port_write(port, SC16IS7XX_LCR_REG, @@ -817,9 +819,9 @@ static unsigned int sc16is7xx_tx_empty(struct uart_port *port) static unsigned int sc16is7xx_get_mctrl(struct uart_port *port) { /* DCD and DSR are not wired and CTS/RTS is handled automatically - * so just indicate DSR and CAR asserted + * so just indicate all inputs asserted */ - return TIOCM_DSR | TIOCM_CAR; + return TIOCM_DSR | TIOCM_CAR | TIOCM_RI | TIOCM_CTS; } static void sc16is7xx_set_mctrl(struct uart_port *port, unsigned int mctrl) -- 2.7.4