From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S943070AbcJ0Ojz (ORCPT ); Thu, 27 Oct 2016 10:39:55 -0400 Received: from arroyo.ext.ti.com ([198.47.19.12]:59812 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755428AbcJ0NwH (ORCPT ); Thu, 27 Oct 2016 09:52:07 -0400 Subject: Re: [PATCH] drivers: mfd: ti_am335x_tscadc: increase ADC ref clock to 24MHz To: Lee Jones References: <20161024060226.4170-1-mugunthanvnm@ti.com> CC: , Tony Lindgren , Jonathan Cameron , Vignesh R , , , , Sekhar Nori , Peter Ujfalusi , John Syne From: Mugunthan V N Message-ID: Date: Thu, 27 Oct 2016 16:50:24 +0530 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.3.0 MIME-Version: 1.0 In-Reply-To: <20161024060226.4170-1-mugunthanvnm@ti.com> Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Monday 24 October 2016 11:32 AM, Mugunthan V N wrote: > Increase ADC reference clock from 3MHz to 24MHz so that the > sampling rates goes up from 100K samples per second to 800K > samples per second on AM335x and AM437x SoC. > > Also increase opendelay for touchscreen configuration to > equalize the increase in ADC reference clock frequency, > which results in the same amount touch events reported via > evtest on AM335x GP EVM. > > Signed-off-by: Mugunthan V N Found issues with touchscreen usage with GUI on my AM335x GP EVM. Fixed with change the "ti,charge-delay" DT property based on change in ADC clocks. Will be sending v2 patch soon. Regards Mugunthan V N