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Message-ID: <20080220103446.1621c81f@dhcp-252-066.norway.atmel.com> Date: Wed, 20 Feb 2008 10:34:46 +0100 From: Haavard Skinnemoen <hskinnemoen@...el.com> To: Atsushi Nemoto <anemo@....ocn.ne.jp> Cc: david-b@...bell.net, spi-devel-general@...ts.sourceforge.net, linux-kernel@...r.kernel.org Subject: Re: atmel_spi clock polarity On Wed, 20 Feb 2008 14:21:09 +0900 (JST) Atsushi Nemoto <anemo@....ocn.ne.jp> wrote: > On Mon, 18 Feb 2008 15:31:58 +0100, Haavard Skinnemoen <hskinnemoen@...el.com> wrote: > > > Anyway, I will try your patch in a few days. > > > > Ok, thanks. If it works, that would be great, but given your > > description above I'm not sure if I dare hope for it. > > Unfortunately it did not work. The clock state did not change by > writing MR register. Ok, thanks for testing. In that case, I think the best fix is to let NPCS0 stay selected permanently in MR and overwrite CSR0 with to the new slave's settings before asserting CS. But that's a more complicated change, and I don't know how it will affect the AT91RM9200 special cases. So I suggest we merge your patch for 2.6.25, and try to optimize it for 2.6.26. David, do you want me to pass on the patch with my signoff or just ask Andrew to add my Acked-by to the patch already in mm? Haavard -- 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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