From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,T_DKIMWL_WL_HIGH, USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 13B0EC04AB5 for ; Mon, 3 Jun 2019 15:37:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CED4121E6D for ; Mon, 3 Jun 2019 15:37:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1559576271; bh=zcP9KtKgAhz3mU5lmAfLMYUlzYRfYyCo6F2EvR1j1zw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=11F9xxs1tcrVCXHYLNUOcdR0vBbCizBzmOwX4Mb25Y7W3CKe8WWMZjitVLSOrAyR9 UldNtumMuIKJ1WvBzwIooLTV3sl54t+XOxFCcTWKK2d/UNYtB0YWXauFUvn7AvFTyS GnsJ6Pp3dzBN6Nt0m5pYsZw6IivUUyRM6z5RQKzI= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728228AbfFCPhv (ORCPT ); Mon, 3 Jun 2019 11:37:51 -0400 Received: from mail.kernel.org ([198.145.29.99]:55120 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727150AbfFCPhu (ORCPT ); Mon, 3 Jun 2019 11:37:50 -0400 Received: from localhost (unknown [223.226.32.210]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 6D7DC21851; Mon, 3 Jun 2019 15:37:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1559576270; bh=zcP9KtKgAhz3mU5lmAfLMYUlzYRfYyCo6F2EvR1j1zw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=lw31aVh04wQTEv/7BJ6nkBiZ5zgifqLpQU/x0ATsCfH40b+ZcENsaEHWo2nm7JN07 wzB4oR54h8ors5pwFLQMd5NDzFoRSph6VbJUKJKu45bS+6ZEYO2+OQX6Szk0kQ/epF 6p5bOIm9qZqTLrTeR7EE5DtJb7/pF2CIJogTQPP8= Date: Mon, 3 Jun 2019 21:04:40 +0530 From: Vinod Koul To: Bjorn Andersson Cc: Andy Gross , David Brown , Rob Herring , Mark Rutland , Doug Anderson , Arun Kumar Neelakantam , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v8 2/4] soc: qcom: Add AOSS QMP driver Message-ID: <20190603153440.GT15118@vkoul-mobl> References: <20190531030057.18328-1-bjorn.andersson@linaro.org> <20190531030057.18328-3-bjorn.andersson@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190531030057.18328-3-bjorn.andersson@linaro.org> User-Agent: Mutt/1.11.3 (2019-02-01) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 30-05-19, 20:00, Bjorn Andersson wrote: > The Always On Subsystem (AOSS) Qualcomm Messaging Protocol (QMP) driver > is used to communicate with the AOSS for certain side-channel requests, > that are not available through the RPMh interface. > > The communication is a very simple synchronous mechanism of messages > being written in message RAM and a doorbell in the AOSS is rung. As the > AOSS has processed the message length is cleared and an interrupt is > fired by the AOSS as acknowledgment. > > The driver exposes the QDSS clock as a clock and the low-power state > associated with the remoteprocs in the system as a set of power-domains. Reviewed-by: Vinod Koul -- ~Vinod