On Wed, 2013-06-26 at 08:43 +0200, Jiri Slaby wrote:
> On 06/26/2013 05:58 AM, Darren Hart wrote:
> > Subject: [PATCH] pch_uart: Use DMI interface for board detection
> >
> > Use the DMI interface rather than manually matching DMI strings.
> >
> > Signed-off-by: Darren Hart <dvhart@xxxxxxxxxxxxxxx>
> > ---
> > drivers/tty/serial/pch_uart.c | 71
> > +++++++++++++++++++++++++++++--------------
> > 1 file changed, 49 insertions(+), 22 deletions(-)
> >
> > diff --git a/drivers/tty/serial/pch_uart.c
> > b/drivers/tty/serial/pch_uart.c
> > index 572d481..271cc73 100644
> > --- a/drivers/tty/serial/pch_uart.c
> > +++ b/drivers/tty/serial/pch_uart.c
> > @@ -373,35 +373,62 @@ static const struct file_operations port_regs_ops
> > = {
> > };
> > #endif /* CONFIG_DEBUG_FS */
> >
> > +static struct dmi_system_id __initdata pch_uart_dmi_table[] = {
> > + {
> > + .ident = "CM-iTC",
> > + {
> > + DMI_MATCH(DMI_BOARD_NAME, "CM-iTC"),
> > + },
> > + (void *)CMITC_UARTCLK,
> > + },
> > + {
> > + .ident = "FRI2",
> > + {
> > + DMI_MATCH(DMI_BIOS_VERSION, "FRI2"),
> > + },
> > + (void *)FRI2_64_UARTCLK,
> > + },
> > + {
> > + .ident = "Fish River Island II",
> > + {
> > + DMI_MATCH(DMI_PRODUCT_NAME, "Fish River Island II"),
> > + },
> > + (void *)FRI2_48_UARTCLK,
> > + },
> > + {
> > + .ident = "COMe-mTT",
> > + {
> > + DMI_MATCH(DMI_BOARD_NAME, "COMe-mTT"),
> > + },
> > + (void *)NTC1_UARTCLK,
> > + },
> > + {
> > + .ident = "nanoETXexpress-TT",
> > + {
> > + DMI_MATCH(DMI_BOARD_NAME, "nanoETXexpress-TT"),
> > + },
> > + (void *)NTC1_UARTCLK,
> > + },
> > + {
> > + .ident = "MinnowBoard",
> > + {
> > + DMI_MATCH(DMI_BOARD_NAME, "MinnowBoard"),
> > + },
> > + (void *)MINNOW_UARTCLK,
> > + },
> > +};
> > +
> > /* Return UART clock, checking for board specific clocks. */
> > static int pch_uart_get_uartclk(void)
> > {
> > - const char *cmp;
> > + const struct dmi_system_id *d;
> >
> > if (user_uartclk)
> > return user_uartclk;
> >
> > - cmp = dmi_get_system_info(DMI_BOARD_NAME);
> > - if (cmp && strstr(cmp, "CM-iTC"))
> > - return CMITC_UARTCLK;
> > -
> > - cmp = dmi_get_system_info(DMI_BIOS_VERSION);
> > - if (cmp && strnstr(cmp, "FRI2", 4))
> > - return FRI2_64_UARTCLK;
> > -
> > - cmp = dmi_get_system_info(DMI_PRODUCT_NAME);
> > - if (cmp && strstr(cmp, "Fish River Island II"))
> > - return FRI2_48_UARTCLK;
> > -
> > - /* Kontron COMe-mTT10 (nanoETXexpress-TT) */
> > - cmp = dmi_get_system_info(DMI_BOARD_NAME);
> > - if (cmp && (strstr(cmp, "COMe-mTT") ||
> > - strstr(cmp, "nanoETXexpress-TT")))
> > - return NTC1_UARTCLK;
> > -
> > - cmp = dmi_get_system_info(DMI_BOARD_NAME);
> > - if (cmp && strstr(cmp, "MinnowBoard"))
> > - return MINNOW_UARTCLK;
> > + d = dmi_first_match(pch_uart_dmi_table);
> > + if (d)
> > + return (int)d->driver_data;
>
> This and the (void *) casts above will generate a warning on 64bit,
> right? We need to go through long here...
>
You can't actually use this driver on 64 bit as there is no hardware,
but yes, I can clean that up just on principle. Thank you for pointing
that out.
--
Darren Hart
Intel Open Source Technology Center
Yocto Project - Technical Lead - Linux Kernel
--
To unsubscribe from this list: send the line "unsubscribe linux-serial" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
