On Fri, Apr 27, 2012 at 11:13 AM, Lothar Waßmann <LW@xxxxxxxxxxxxxxxxxxx> wrote: > Hi, > > Richard Zhao writes: >> On Fri, Apr 27, 2012 at 11:18:31AM +0200, Lothar Waßmann wrote: >> > Hi, >> > >> > Richard Zhao writes: >> > > device_prep_dma_cyclic may be call in audio trigger function which is >> > > atomic context, so we make it atomic too. >> > > >> > > - change channel0 lock to spinlock. >> > > - Use polling to wait for channel0 finish running. >> > > >> > > Signed-off-by: Lothar Waßmann <LW@xxxxxxxxxxxxxxxxxxx> >> > > >> > Actually I didn't sign off the patch that I posted, because I wanted >> > to wait for more comments first. >> I send it out with slight modifications because the series highly >> depend on it. Will you take it over or let me put it in next version? >> Both are ok to me. >> > I think you should keep it as part of your sound patches and I will > test your final version on our hardware. > I hope we can get a conclusion that the prep_slave_sg() can be called in atomic context or not. My patch "add DMA support to UART" heavily depends on it. Huang Shijie > > Lothar Waßmann > -- > ___________________________________________________________ > > Ka-Ro electronics GmbH | Pascalstraße 22 | D - 52076 Aachen > Phone: +49 2408 1402-0 | Fax: +49 2408 1402-10 > Geschäftsführer: Matthias Kaussen > Handelsregistereintrag: Amtsgericht Aachen, HRB 4996 > > www.karo-electronics.de | info@xxxxxxxxxxxxxxxxxxx > ___________________________________________________________ > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
