From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754119AbaIOLvE (ORCPT ); Mon, 15 Sep 2014 07:51:04 -0400 Received: from www.linutronix.de ([62.245.132.108]:33153 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753980AbaIOLvB (ORCPT ); Mon, 15 Sep 2014 07:51:01 -0400 Message-ID: <5416D2A0.5020407@linutronix.de> Date: Mon, 15 Sep 2014 13:50:56 +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, gregkh@linuxfoundation.org Subject: Re: [PATCH 00/16 v9] omap 8250 based uart + DMA References: <1410377411-26656-1-git-send-email-bigeasy@linutronix.de> <20140912224324.GK18849@atomide.com> In-Reply-To: <20140912224324.GK18849@atomide.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit 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 09/13/2014 12:43 AM, Tony Lindgren wrote: > * Sebastian Andrzej Siewior [140910 12:30]: >> the diff of v8…v9 is small: >> - rebased on top's of Greg's tty-next branch >> - fixed #10 where we might have THRE interrupt enabled for longer than >> needed >> - re-did register setup in #10. Before this "less file" could freeze the >> am335x-evm. > > FYI, looks like merging in your uart_v9 branch for testing > with my hwmod changes now fails to produce RX characters on omap3. > > The device wakes up just fine to the wake-up interrupt, and then > serial8250_handle_irq() gets called, but I'm not seeing anything > in the console getting printed out. It's like all the RX characters > are getting lost instead of just the first one. The RX characters > work fine when the system is running. > > So it seems there's been some kind of regression since v8? I changed the restore function the fix the am335x-evm + less "freeze". And now we have this. So let me search… > Regards, > > Tony > Sebastian