From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kevin Hilman Subject: Re: [PATCH 1/3] DSS PM_WKEN to refill DMA Date: Wed, 13 Jan 2010 15:47:15 -0800 Message-ID: <877hrlftz0.fsf@deeprootsystems.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mail-fx0-f225.google.com ([209.85.220.225]:33942 "EHLO mail-fx0-f225.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753835Ab0AMXrW (ORCPT ); Wed, 13 Jan 2010 18:47:22 -0500 Received: by fxm25 with SMTP id 25so797681fxm.21 for ; Wed, 13 Jan 2010 15:47:20 -0800 (PST) In-Reply-To: (Kishore Y.'s message of "Tue\, 22 Dec 2009 15\:07\:50 +0530") Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: "Y, Kishore" Cc: "Tomi Valkeinen (tomi.valkeinen@nokia.com)" , "linux-omap@vger.kernel.org" "Y, Kishore" writes: > From: Subramani Venkatesh > > Currently, DSS doesnot wakeup when there is a DMA request. > DSS wake up event must be enabled so that the DMA request to refill > the FIFO will wake up the CORE domain. > > Signed-off-by: Subramani Venkatesh Adding this one to pm-fixes queue for 2.6.33-rc. The rest of this series needs to go upstream via Tomi's DSS2 tree. Kevin > --- > arch/arm/mach-omap2/pm34xx.c | 5 +++++ > 1 files changed, 5 insertions(+), 0 deletions(-) > > diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c > index 81ed252..2d11b80 100644 > --- a/arch/arm/mach-omap2/pm34xx.c > +++ b/arch/arm/mach-omap2/pm34xx.c > @@ -726,6 +726,11 @@ static void __init prcm_setup_regs(void) > prm_write_mod_reg(0, OMAP3430_IVA2_MOD, PM_WKDEP); > prm_write_mod_reg(0, MPU_MOD, PM_WKDEP); > prm_write_mod_reg(0, OMAP3430_DSS_MOD, PM_WKDEP); > + > + /* Enable PM_WKEN to support DSS LPR */ > + prm_write_mod_reg(OMAP3430_PM_WKEN_DSS_EN_DSS, > + OMAP3430_DSS_MOD, PM_WKEN); > + > prm_write_mod_reg(0, OMAP3430_NEON_MOD, PM_WKDEP); > prm_write_mod_reg(0, OMAP3430_CAM_MOD, PM_WKDEP); > prm_write_mod_reg(0, OMAP3430_PER_MOD, PM_WKDEP); > -- > 1.5.4.3 > > > Regards, > Kishore Y