From mboxrd@z Thu Jan 1 00:00:00 1970 From: a0131647 Subject: Re: [RFC/RFT PATCH 0/2] SERIAL: OMAP: Remove idle handling from driver Date: Fri, 15 Feb 2013 19:12:23 +0530 Message-ID: <511E3B3F.1000609@ti.com> References: <1360929970-31934-1-git-send-email-santosh.shilimkar@ti.com> <511E323E.3050104@ti.com> <20130215130745.GC16558@arwen.pp.htv.fi> <20130215130842.GD16558@arwen.pp.htv.fi> Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from arroyo.ext.ti.com ([192.94.94.40]:38645 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1161381Ab3BONmd (ORCPT ); Fri, 15 Feb 2013 08:42:33 -0500 In-Reply-To: <20130215130842.GD16558@arwen.pp.htv.fi> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: balbi@ti.com Cc: Santosh Shilimkar , linux-omap@vger.kernel.org, khilman@deeprootsystems.com, paul@pwsan.com, tony@atomide.com, vaibhav.bedia@ti.com, linux@arm.linux.org.uk, linux-arm-kernel@lists.infradead.org Hi, On Friday 15 February 2013 06:38 PM, Felipe Balbi wrote: > On Fri, Feb 15, 2013 at 03:07:45PM +0200, Felipe Balbi wrote: >> On Fri, Feb 15, 2013 at 06:33:58PM +0530, a0131647 wrote: >>> Hi, >>> On Friday 15 February 2013 05:36 PM, Santosh Shilimkar wrote: >>>> OMAP UART IP needs manual idle modes based on state of the >>>> IP. Currently this is handled by the driver with function pointers >>>> implemented in platform code. >>>> >>>> This however breaks in case of device tree because of missing >>>> idle handling. >>>> >>>> The series tries to address the issue >>>> >>>> Patches has been tested on OMAP4 and OMAP5 devices where the console >>>> slugishness was observed without idle mode handling. CPUIDLE and >>>> suspend tested ok on these devices. >>>> >>>> Need help in testing on OMAP2, OMAP3 and AM3XXX devices. >>>> >>> Tested this series on omap3630 beagle board for: >>> 1. Retention in idle and suspend. >>> 2. Off mode in idle and suspend. >>> >>> Tested-by: Sourav Poddar >> try setting autosuspend_delay to -1 > Also try DT boot and try to wakeup from echo mem> /sys/power/state by > sending data through UART console. > Suspend/resume with dt is not functional with the current mainline. ~Sourav