From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932141AbaIIHdt (ORCPT ); Tue, 9 Sep 2014 03:33:49 -0400 Received: from www.linutronix.de ([62.245.132.108]:50124 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755322AbaIIHdr (ORCPT ); Tue, 9 Sep 2014 03:33:47 -0400 Message-ID: <540EAD56.8090304@linutronix.de> Date: Tue, 09 Sep 2014 09:33:42 +0200 From: Sebastian Andrzej Siewior User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Icedove/31.0 MIME-Version: 1.0 To: Tony Lindgren CC: linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, balbi@ti.com, Greg Kroah-Hartman Subject: Re: [PATCH v8 00/18] 8250-core based serial driver for OMAP + DMA References: <1409943773-7874-1-git-send-email-bigeasy@linutronix.de> <20140908174020.GI3238@atomide.com> <20140908175510.GK3238@atomide.com> In-Reply-To: <20140908175510.GK3238@atomide.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 09/08/2014 07:55 PM, Tony Lindgren wrote: > * Tony Lindgren [140908 10:41]: >> * Sebastian Andrzej Siewior [140905 12:03]: >>> This is my complete queue fo the omap serial driver based on the 8250 core >>> code. I played with it on beagle bone, am335x-evm and dra7xx including DMA. >>> The runtime-pm pieces look now bug-compatible with the omap-serial driver. >>> Besides the runtime-om improvement I also fixed a few corner cases for the >>> TX-DMA problem. The DMA fixes (in edma and omap-dma) were dropped and the >>> problem has been in 8250-dma via patch #13. >>> >>> The whole queue is available at >>> git://git.breakpoint.cc/bigeasy/linux.git uart_v8 >> >> Gave the above branch a quick try, but it again does not idle for >> my omap3 test cases. It seems that now the cm_idlest1_core sdma >> bit is blocking deeper idle states. Is that the correct branch >> to use? > > Never mind. User error. I forgot to apply my own patch for force > idling the UARTs for the omap hwmod. And the sdma bit clears if > I do sleep 5 before attempting to read the sysfs entry.. Okay. There is also this "uart_v8_hacks" branch where I splitted out the hacks I had like the pstore one or the force idle for instance. > Regards, > > Tony Sebastian From mboxrd@z Thu Jan 1 00:00:00 1970 From: bigeasy@linutronix.de (Sebastian Andrzej Siewior) Date: Tue, 09 Sep 2014 09:33:42 +0200 Subject: [PATCH v8 00/18] 8250-core based serial driver for OMAP + DMA In-Reply-To: <20140908175510.GK3238@atomide.com> References: <1409943773-7874-1-git-send-email-bigeasy@linutronix.de> <20140908174020.GI3238@atomide.com> <20140908175510.GK3238@atomide.com> Message-ID: <540EAD56.8090304@linutronix.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 09/08/2014 07:55 PM, Tony Lindgren wrote: > * Tony Lindgren [140908 10:41]: >> * Sebastian Andrzej Siewior [140905 12:03]: >>> This is my complete queue fo the omap serial driver based on the 8250 core >>> code. I played with it on beagle bone, am335x-evm and dra7xx including DMA. >>> The runtime-pm pieces look now bug-compatible with the omap-serial driver. >>> Besides the runtime-om improvement I also fixed a few corner cases for the >>> TX-DMA problem. The DMA fixes (in edma and omap-dma) were dropped and the >>> problem has been in 8250-dma via patch #13. >>> >>> The whole queue is available at >>> git://git.breakpoint.cc/bigeasy/linux.git uart_v8 >> >> Gave the above branch a quick try, but it again does not idle for >> my omap3 test cases. It seems that now the cm_idlest1_core sdma >> bit is blocking deeper idle states. Is that the correct branch >> to use? > > Never mind. User error. I forgot to apply my own patch for force > idling the UARTs for the omap hwmod. And the sdma bit clears if > I do sleep 5 before attempting to read the sysfs entry.. Okay. There is also this "uart_v8_hacks" branch where I splitted out the hacks I had like the pstore one or the force idle for instance. > Regards, > > Tony Sebastian