From mboxrd@z Thu Jan 1 00:00:00 1970 From: santosh shilimkar Subject: Re: [PATCH] arm: omap2: Kconfig: select TWD and global timer on AM43xx devices Date: Fri, 13 Nov 2015 08:39:50 -0800 Message-ID: <56461256.5050209@oracle.com> References: <1447351566-2328-1-git-send-email-balbi@ti.com> <5645DC3A.4050504@ti.com> <5645E096.1030600@free.fr> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <5645E096.1030600@free.fr> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Mason , Grygorii Strashko , Felipe Balbi , Tony Lindgren Cc: Linux OMAP , Russell King , Linux ARM Kernel Mailing List , Santosh Shilimkar List-Id: linux-omap@vger.kernel.org On 11/13/2015 5:07 AM, Mason wrote: > On 13/11/2015 13:48, Grygorii Strashko wrote: >> On 11/12/2015 08:06 PM, Felipe Balbi wrote: >>> Make sure to tell the kernel that AM437x has >>> TWD and global timers. >>> >>> Signed-off-by: Felipe Balbi >>> --- >>> >>> Hi Tony, >>> >>> now that all dependencies are in place, we can >>> finally enable twd and global_timer for AM437x. >>> Is AM437x SMP SOC ? Is TWD on AM437x works in low power states ? Probably I haven't followed the recent updates, but does the TWD supports C3STOP on UP systems ? The broadcast code was SMP only in past, and TWD use to die in low power state on past OMAP SOCs. If either of these are still the issue then TWD shouldn't be used. Regards, Santosh From mboxrd@z Thu Jan 1 00:00:00 1970 From: santosh.shilimkar@oracle.com (santosh shilimkar) Date: Fri, 13 Nov 2015 08:39:50 -0800 Subject: [PATCH] arm: omap2: Kconfig: select TWD and global timer on AM43xx devices In-Reply-To: <5645E096.1030600@free.fr> References: <1447351566-2328-1-git-send-email-balbi@ti.com> <5645DC3A.4050504@ti.com> <5645E096.1030600@free.fr> Message-ID: <56461256.5050209@oracle.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 11/13/2015 5:07 AM, Mason wrote: > On 13/11/2015 13:48, Grygorii Strashko wrote: >> On 11/12/2015 08:06 PM, Felipe Balbi wrote: >>> Make sure to tell the kernel that AM437x has >>> TWD and global timers. >>> >>> Signed-off-by: Felipe Balbi >>> --- >>> >>> Hi Tony, >>> >>> now that all dependencies are in place, we can >>> finally enable twd and global_timer for AM437x. >>> Is AM437x SMP SOC ? Is TWD on AM437x works in low power states ? Probably I haven't followed the recent updates, but does the TWD supports C3STOP on UP systems ? The broadcast code was SMP only in past, and TWD use to die in low power state on past OMAP SOCs. If either of these are still the issue then TWD shouldn't be used. Regards, Santosh