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Date: Wed, 11 Nov 2009 12:37:13 +0100 From: Albin Tonnerre <albin.tonnerre@...e-electrons.com> To: akpm@...ux-foundation.org Cc: linux-kernel@...r.kernel.org, haavard.skinnemoen@...el.com, avictor.za@...il.com Subject: Re: [PATCH v2] Add poll_get_char and poll_put_char uart_ops to atmel_serial. Andrew, could you please pick this up ? It got: Acked-by: Haavard Skinnemoen <haavard.skinnemoen@...el.com> Acked-by: Andrew Victor <linux@...im.org.za> Regards, Albin On Mon, 07 Sep 2009 11:52 +0200, Albin Tonnerre wrote : > This patch allows using KGDB over the console with the atmel_serial > driver. > > Signed-off-by: Albin Tonnerre <albin.tonnerre@...e-electrons.com> > --- > changes: Use register access macros instead of __raw_readl/writel > > drivers/serial/atmel_serial.c | 22 ++++++++++++++++++++++ > 1 files changed, 22 insertions(+), 0 deletions(-) > > diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c > index 607d43a..c562883 100644 > --- a/drivers/serial/atmel_serial.c > +++ b/drivers/serial/atmel_serial.c > @@ -1213,6 +1213,24 @@ static int atmel_verify_port(struct uart_port *port, struct serial_struct *ser) > return ret; > } > > +#ifdef CONFIG_CONSOLE_POLL > +static int atmel_poll_get_char(struct uart_port *port) > +{ > + while (!(UART_GET_CSR(port) & ATMEL_US_RXRDY)) > + barrier(); > + > + return UART_GET_CHAR(port); > +} > + > +static void atmel_poll_put_char(struct uart_port *port, unsigned char ch) > +{ > + while (!(UART_GET_CSR(port) & ATMEL_US_TXRDY)) > + barrier(); > + > + UART_PUT_CHAR(port, ch); > +} > +#endif > + > static struct uart_ops atmel_pops = { > .tx_empty = atmel_tx_empty, > .set_mctrl = atmel_set_mctrl, > @@ -1232,6 +1250,10 @@ static struct uart_ops atmel_pops = { > .config_port = atmel_config_port, > .verify_port = atmel_verify_port, > .pm = atmel_serial_pm, > +#ifdef CONFIG_CONSOLE_POLL > + .poll_get_char = atmel_poll_get_char, > + .poll_put_char = atmel_poll_put_char, > +#endif > }; > > /* -- Albin Tonnerre, Free Electrons Kernel, drivers and embedded Linux development, consulting, training and support. http://free-electrons.com -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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