On Fri, May 27, 2011 at 07:04:03PM -0700, Kukjin Kim wrote:
> From: Boojin Kim <boojin....@samsung.com>
> 
> This patch fixes the way of comparison for handling of two or more
> clock sources for UART.
> 
> For example, if just only one clock source is defined even though
> there are two clock sources for UART, the serial driver does not
> set proper clock up. Of course, it is problem.
> 
> So this patch changes the condition of comparison to avoid useless
> setup clock and adds a flag 'NO_NEED_CHECK_CLKSRC' which means
> selection of source clock is not required.
> 
> In addition, since the Exynos4210 has only one clock source for UART
> this patch adds the flag into its common_init_uarts().
> 
> Signed-off-by: Boojin Kim <boojin....@samsung.com>
> Cc: Greg Kroah-Hartman <g...@kroah.com>
> Signed-off-by: Kukjin Kim <kgene....@samsung.com>
> ---
>  arch/arm/mach-exynos4/init.c                     |    1 +
>  arch/arm/plat-samsung/include/plat/regs-serial.h |    2 ++
>  drivers/tty/serial/s5pv210.c                     |    4 ++--
>  3 files changed, 5 insertions(+), 2 deletions(-)

Is this needed in older kernels as well (like .39)?

thanks,

greg k-h
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