[PATCH v3 04/10] serial: mps2-uart: add MPS2 UART driver

From: vladimir.murzin@arm•com (Vladimir Murzin)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH v3 04/10] serial: mps2-uart: add MPS2 UART driver
Date: Tue, 16 Feb 2016 15:09:58 +0000	[thread overview]
Message-ID: <56C33BC6.1040801@arm.com> (raw)
In-Reply-To: <20160216110217.3de7c007@lxorguk.ukuu.org.uk>

On 16/02/16 11:02, One Thousand Gnomes wrote:
> 
>> +static void mps2_uart_set_termios(struct uart_port *port,
>> +	struct ktermios *new, struct ktermios *old)
> 
> Not that I care much but you might not want to call it "new". People get
> upset when their syntax aware editors get confused by C++ keywords 8)

Just renamed it to have cpp suffix and looks like my editor falls under
that category :)

> 
>> +{
>> +	unsigned long flags;
>> +	unsigned int baud, bauddiv;
>> +
>> +	new->c_cflag &= ~(CRTSCTS | CMSPAR);
>> +	new->c_cflag &= ~CSIZE;
>> +	new->c_cflag |= CS8;
>> +	new->c_cflag &= ~PARENB;
>> +	new->c_cflag &= ~CSTOPB;
>> +
>> +	baud = uart_get_baud_rate(port, new, old,
>> +			DIV_ROUND_CLOSEST(port->uartclk, UARTn_BAUDDIV_MASK),
>> +			DIV_ROUND_CLOSEST(port->uartclk, 16));
>> +
>> +	bauddiv = DIV_ROUND_CLOSEST(port->uartclk, baud);
>> +
>> +	spin_lock_irqsave(&port->lock, flags);
>> +
>> +	uart_update_timeout(port, new->c_cflag, baud);
>> +	mps2_uart_write32(port, bauddiv, UARTn_BAUDDIV);
> 
> This should also set the baud bits back in the termios struct
> accordingly. 
> 
> 	if (tty_termios_baud_rate(new))
> 		tty_termios_encode_baud_rate(new, baud, baud);
> 
> 
> Not a big deal and could certainly be a follow up patch after it's merged.

I'll fold it in the next version.

Thanks
Vladimir

> 
> Alan
> 
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel at lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
> 
> 
> 