From: Alan Cox <gnomes@lxorguk.ukuu.org.uk>
To: "Andreas Färber" <afaerber@suse.de>
Cc: linux-arm-kernel@lists.infradead.org, mp-cs@actions-semi.com,
"Thomas Liau" <thomas.liau@actions-semi.com>,
张东风 <zhangdf@actions-semi.com>, 刘炜 <liuwei@actions-semi.com>,
张天益 <tyzhang@actions-semi.com>,
96boards@ucrobotics.com, support@lemaker.org,
linux-kernel@vger.kernel.org,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
"Jiri Slaby" <jslaby@suse.com>,
linux-serial@vger.kernel.org
Subject: Re: [PATCH v4 16/28] tty: serial: owl: Implement console driver
Date: Tue, 6 Jun 2017 14:34:07 +0100 [thread overview]
Message-ID: <20170606143407.56d15c3c@lxorguk.ukuu.org.uk> (raw)
In-Reply-To: <20170606005426.26446-17-afaerber@suse.de>
> +
> +static void owl_uart_set_termios(struct uart_port *port,
> + struct ktermios *termios,
> + struct ktermios *old)
> +{
> + struct owl_uart_port *owl_port = to_owl_uart_port(port);
> + unsigned int baud;
> + u32 ctl;
> + unsigned long flags;
> +
> + spin_lock_irqsave(&port->lock, flags);
> +
> + /* We don't support modem control lines. */
> + termios->c_cflag &= ~(HUPCL | CMSPAR);
> + termios->c_cflag |= CLOCAL;
CLOCAL and HUPCL are software not hardware properties so are probably
best not forced (it'll confuse some apps if you do)
> +
> + /* We don't support BREAK character recognition. */
> + termios->c_iflag &= ~(IGNBRK | BRKINT);
Ditto these
You do clear CMSPAR which is right if not supported but then later on we
have:
> + if (termios->c_cflag & PARENB) {
> + if (termios->c_cflag & CMSPAR) {
> + if (termios->c_cflag & PARODD)
> + ctl |= OWL_UART_CTL_PRS_MARK;
> + else
> + ctl |= OWL_UART_CTL_PRS_SPACE;
> + } else if (termios->c_cflag & PARODD)
> + ctl |= OWL_UART_CTL_PRS_ODD;
> + else
> + ctl |= OWL_UART_CTL_PRS_EVEN;
> + } else
> + ctl |= OWL_UART_CTL_PRS_NONE;
Which seems to indicate you do support CMSPAR so shouldn't be clearing it.
> +
> + if (termios->c_cflag & CRTSCTS)
> + ctl |= OWL_UART_CTL_AFE;
> + else
> + ctl &= ~OWL_UART_CTL_AFE;
> +
> + owl_uart_write(port, ctl, OWL_UART_CTL);
> +
> + baud = uart_get_baud_rate(port, termios, old, 9600, 3200000);
> + owl_uart_change_baudrate(owl_port, baud);
You should re-encode the resulting baud rate into the termios
/* Don't rewrite B0 */
if (tty_termios_baud_rate(termios))
tty_termios_encode_baud_rate(termios, baud, baud);
next prev parent reply other threads:[~2017-06-06 13:35 UTC|newest]
Thread overview: 99+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-06 0:53 [PATCH v4 00/28] ARM: Initial Actions Semi S500 and S900 enablement Andreas Färber
2017-06-06 0:53 ` [PATCH v4 01/28] dt-bindings: Add vendor prefix for Actions Semi Andreas Färber
2017-06-18 18:46 ` Andreas Färber
2017-06-06 0:54 ` [PATCH v4 02/28] dt-bindings: arm: Document Actions Semi S500 Andreas Färber
2017-06-18 18:48 ` Andreas Färber
2017-06-06 0:54 ` [PATCH v4 03/28] dt-bindings: timer: Document Owl timer Andreas Färber
2017-06-18 20:18 ` Andreas Färber
2017-06-06 0:54 ` [PATCH v4 04/28] clocksource: Add " Andreas Färber
2017-06-06 16:33 ` Daniel Lezcano
2017-06-18 20:43 ` Andreas Färber
2017-06-19 13:53 ` Daniel Lezcano
2017-06-19 14:31 ` Andreas Färber
2017-06-21 11:57 ` Daniel Lezcano
2017-06-06 0:54 ` [PATCH v4 05/28] clocksource: owl: Add S900 support Andreas Färber
2017-06-06 16:34 ` Daniel Lezcano
2017-06-18 20:50 ` Andreas Färber
2017-06-06 0:54 ` [PATCH v4 06/28] ARM: Prepare Actions Semi S500 Andreas Färber
2017-06-18 21:21 ` Andreas Färber
2017-07-01 21:41 ` [PATCH] ARM: owl: Drop custom machine Andreas Färber
2017-06-06 0:54 ` [PATCH v4 07/28] ARM64: Prepare Actions Semi S900 Andreas Färber
2017-06-11 13:04 ` Andreas Färber
2017-06-06 0:54 ` [PATCH v4 08/28] dt-bindings: serial: Document Actions Semi Owl UARTs Andreas Färber
2017-06-06 0:54 ` [PATCH v4 09/28] tty: serial: Add Actions Semi Owl UART earlycon Andreas Färber
2017-06-18 21:45 ` Andreas Färber
2017-06-19 1:16 ` Greg Kroah-Hartman
2017-06-19 1:24 ` Andreas Färber
2017-06-19 1:46 ` [PATCH v5 07/26] dt-bindings: serial: Document Actions Semi Owl UARTs Andreas Färber
2017-06-19 1:46 ` [PATCH v5 08/26] tty: serial: Add Actions Semi Owl UART earlycon Andreas Färber
2017-06-19 2:12 ` [PATCH v4 09/28] " Greg Kroah-Hartman
2017-06-19 2:26 ` Andreas Färber
2017-06-06 0:54 ` [PATCH v4 10/28] Documentation: kernel-parameters: Document owl earlycon Andreas Färber
2017-06-06 0:54 ` [PATCH v4 11/28] ARM: dts: Add Actions Semi S500 and LeMaker Guitar Andreas Färber
2017-06-18 22:10 ` Andreas Färber
2017-06-19 1:08 ` [PATCH v5 10/27] " Andreas Färber
2017-06-19 2:01 ` Andreas Färber
2017-06-06 0:54 ` [PATCH v4 12/28] dt-bindings: Add vendor prefix for uCRobotics Andreas Färber
2017-06-18 22:19 ` Andreas Färber
2017-06-06 0:54 ` [PATCH v4 13/28] dt-bindings: arm: Document Actions Semi S900 Andreas Färber
2017-06-18 22:29 ` Andreas Färber
2017-06-06 0:54 ` [PATCH v4 14/28] ARM64: dts: Add Actions Semi S900 and Bubblegum-96 Andreas Färber
2017-06-18 22:40 ` Andreas Färber
2017-06-06 0:54 ` [PATCH v4 15/28] MAINTAINERS: Add Actions Semi Owl section Andreas Färber
2017-06-18 22:49 ` Andreas Färber
2017-06-19 2:44 ` [PATCH v5 13/26] " Andreas Färber
2017-06-26 6:56 ` 答复: " 张天益
2017-06-06 0:54 ` [PATCH v4 16/28] tty: serial: owl: Implement console driver Andreas Färber
2017-06-06 13:34 ` Alan Cox [this message]
2017-07-02 20:27 ` Andreas Färber
2017-06-07 14:37 ` Andy Shevchenko
2017-07-02 22:36 ` Andreas Färber
2017-06-06 0:54 ` [PATCH v4 17/28] ARM64: dts: actions: s900-bubblegum-96: Add fake uart5 clock Andreas Färber
2017-09-05 21:29 ` Andreas Färber
2017-06-06 0:54 ` [PATCH v4 18/28] ARM: dts: s500-guitar-bb-rev-b: Add fake uart3 clock Andreas Färber
2017-09-05 21:37 ` Andreas Färber
2017-06-06 0:54 ` [PATCH v4 19/28] dt-bindings: arm: cpus: Add S500 enable-method Andreas Färber
2017-06-19 2:09 ` Andreas Färber
2017-06-06 0:54 ` [PATCH v4 20/28] ARM: owl: Implement CPU enable-method for S500 Andreas Färber
2017-06-19 2:11 ` Andreas Färber
2017-06-21 8:16 ` Arnd Bergmann
2017-06-21 10:25 ` Arnd Bergmann
2017-06-21 16:48 ` Andreas Färber
2017-06-21 18:02 ` Arnd Bergmann
2017-06-29 15:07 ` Arnd Bergmann
2017-06-29 15:22 ` Andreas Färber
2017-06-29 15:50 ` Arnd Bergmann
2017-07-01 21:29 ` [PATCH] ARM: owl: smp: Drop bogus holding pen Andreas Färber
2017-07-03 12:35 ` Arnd Bergmann
2017-07-01 4:42 ` 答复: [PATCH v4 20/28] ARM: owl: Implement CPU enable-method for S500 刘炜
2017-07-01 19:56 ` Andreas Färber
2017-07-03 8:13 ` 刘炜
2017-07-04 23:32 ` [PATCH] ARM: owl: smp: Drop owl_secondary_boot() Andreas Färber
2017-07-05 2:36 ` Florian Fainelli
2017-07-06 17:17 ` Andreas Färber
2017-07-06 17:38 ` Alexandre Belloni
2017-07-06 19:47 ` Florian Fainelli
2017-07-07 7:34 ` Gregory CLEMENT
2017-07-07 17:32 ` Florian Fainelli
2017-07-06 17:39 ` Mark Rutland
2017-07-06 21:16 ` Florian Fainelli
2017-07-09 21:55 ` Andreas Färber
2017-07-10 4:27 ` Florian Fainelli
2017-06-06 0:54 ` [PATCH v4 21/28] ARM: dts: s500: Set CPU enable-method Andreas Färber
2017-06-19 2:09 ` Andreas Färber
2017-06-06 0:54 ` [PATCH v4 22/28] dt-bindings: power: Add Owl SPS power domains Andreas Färber
2017-06-19 3:36 ` [PATCH v5 20/26] " Andreas Färber
2017-06-19 3:57 ` Andreas Färber
2017-06-06 0:54 ` [PATCH v4 23/28] soc: actions: Add Owl SPS Andreas Färber
2017-06-19 3:40 ` [PATCH v5 21/26] " Andreas Färber
2017-06-19 3:59 ` Andreas Färber
2017-06-06 0:54 ` [PATCH v4 24/28] MAINTAINERS: Update Actions Semi section with SPS Andreas Färber
2017-06-19 3:44 ` [PATCH v5 22/26] " Andreas Färber
2017-06-19 4:00 ` Andreas Färber
2017-06-06 0:54 ` [PATCH v4 25/28] ARM: dts: s500: Add SPS node Andreas Färber
2017-06-19 4:01 ` Andreas Färber
2017-06-06 0:54 ` [PATCH v4 26/28] ARM: dts: s500: Set power domains for CPU2 and CPU3 Andreas Färber
2017-07-27 20:58 ` Andreas Färber
2017-06-06 0:54 ` [PATCH v4 27/28] soc: actions: owl-sps: Factor out owl_sps_set_pg() for power-gating Andreas Färber
2017-06-19 4:12 ` Andreas Färber
2017-06-06 0:54 ` [PATCH v4 28/28] ARM: owl: smp: Implement SPS power-gating for CPU2 and CPU3 Andreas Färber
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