From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1423944AbcFNDCb (ORCPT ); Mon, 13 Jun 2016 23:02:31 -0400 Received: from regular1.263xmail.com ([211.150.99.137]:58070 "EHLO regular1.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1422941AbcFNDC3 (ORCPT ); Mon, 13 Jun 2016 23:02:29 -0400 X-263anti-spam: KSV:0; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-KSVirus-check: 0 X-ABS-CHECKED: 4 X-ADDR-CHECKED: 0 X-RL-SENDER: zhengxing@rock-chips.com X-FST-TO: linux-kernel@vger.kernel.org X-SENDER-IP: 103.29.142.67 X-LOGIN-NAME: zhengxing@rock-chips.com X-UNIQUE-TAG: <2de09374ad48b7e03a1c2af90087e39f> X-ATTACHMENT-NUM: 0 X-DNS-TYPE: 0 Subject: Re: [PATCH] clk: rockchip: add pclk_vio_grf to critical clock on the RK3399 To: Doug Anderson References: <1465724913-14553-1-git-send-email-zhengxing@rock-chips.com> <575E240C.9060502@rock-chips.com> Cc: =?UTF-8?Q?Heiko_St=c3=bcbner?= , elaine zhang , Tao Huang , Brian Norris , Yakir Yang , Michael Turquette , Stephen Boyd , linux-clk , "linux-arm-kernel@lists.infradead.org" , "open list:ARM/Rockchip SoC..." , "linux-kernel@vger.kernel.org" From: Xing Zheng Message-ID: <575F73B1.9000703@rock-chips.com> Date: Tue, 14 Jun 2016 11:02:09 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Doug, On 2016年06月14日 07:46, Doug Anderson wrote: > > Even if it's not much power, it seems like we should still turn it off > and on in the right place. Unless I'm mistaken it should be such a > simple patch provide the clock to the right driver and then get the > clock when appropriate. Yes, I talked with Yakir and we intent to enable/disable the pclk_vio_grf in video drivers, so this patch will be dropped. >> I will refer the latest TRM to update a new patch for always enable these >> GRFs. > Does that mean you're going to make these all critical clocks? That > doesn't sound so great... > > -Doug Maybe, I heard that they are removed in the updated TRM, but I have not got the TRM yet. I will double check it, and it seems that you do not agree to remove these clock... Thanks. -- - Xing Zheng