[PATCH v2] clk: armada-370: fix tclk frequencies

Jason Cooper jason at lakedaemon.net
Thu Oct 17 08:31:59 EDT 2013


Mike,

I going to go ahead a take this through my tree.  I'll hold it off until
my last pull request for the merge window (I'm guessing about a week).
If you object, just let me know before then and I'll drop it.


On Thu, Oct 03, 2013 at 12:05:02PM +0200, Simon Guinot wrote:
> This patch fixes the tclk frequency array for the Armada-370 SoC.
> This bug has been introduced by commit 6b72333d
> ("clk: mvebu: add Armada 370 SoC-centric clock init").
> 
> A wrong tclk frequency affects the following drivers: mvsdio, mvneta,
> i2c-mv64xxx and mvebu-devbus. This list may be incomplete.
> 
> About the mvneta Ethernet driver, note that the tclk frequency is used
> to compute the Rx time coalescence. Then, this bug harms the coalescence
> configuration and also degrades the networking performances with the
> default values.
> 
> Signed-off-by: Simon Guinot <simon.guinot at sequanux.org>
> Cc: Andrew Lunn <andrew at lunn.ch>
> Cc: Gregory CLEMENT <gregory.clement at free-electrons.com>
> Cc: Sebastian Hesselbarth <sebastian.hesselbarth at gmail.com>
> Cc: Jason Cooper <jason at lakedaemon.net>
> Cc: stable at vger.kernel.org
> ---
>  drivers/clk/mvebu/armada-370.c |    4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

Applied to mvebu/drivers for v3.13 and flagged for stable going back to
v3.11.  Also added Gregory's Ack.

thx,

Jason.



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