Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754709AbbKXLCA (ORCPT ); Tue, 24 Nov 2015 06:02:00 -0500 Received: from mail-yk0-f177.google.com ([209.85.160.177]:34795 "EHLO mail-yk0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754675AbbKXLBy (ORCPT ); Tue, 24 Nov 2015 06:01:54 -0500 MIME-Version: 1.0 In-Reply-To: <20151124092341.GA2228@odux.rfo.atmel.com> References: <1446825570-30029-1-git-send-email-ludovic.desroches@atmel.com> <1446825570-30029-2-git-send-email-ludovic.desroches@atmel.com> <20151109132305.GC15706@odux.rfo.atmel.com> <20151109144030.GD15706@odux.rfo.atmel.com> <20151109163026.GE15706@odux.rfo.atmel.com> <20151124092341.GA2228@odux.rfo.atmel.com> Date: Tue, 24 Nov 2015 12:01:53 +0100 Message-ID: Subject: Re: [PATCH 1/2] mmc: sdhci: set bus voltage before enabling bus power From: Ulf Hansson To: Ulf Hansson , Nicolas Ferre , Alexandre Belloni , linux-mmc , "linux-kernel@vger.kernel.org" , Jean-Christophe Plagniol-Villard , "linux-arm-kernel@lists.infradead.org" , "devicetree@vger.kernel.org" Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1405 Lines: 36 On 24 November 2015 at 10:23, Ludovic Desroches wrote: > Hi Ulf, > > On Mon, Nov 09, 2015 at 05:30:26PM +0100, Ludovic Desroches wrote: >> On Mon, Nov 09, 2015 at 05:00:46PM +0100, Ulf Hansson wrote: > > [...] > >> > Now, this discussion was interesting, but I forgot what problem you >> > actually where trying to solve? :-) >> >> There is this discussion because of two things: >> - Fixing something I consider as a bug: when I have a VMMC, only >> setting/clearing bit 0. Our controller strictly obeys to the spec and >> check the 'SD Bus Voltage Select' field. Since we put a reserved value >> (000), the Power On is not performed. >> - I was trying to get help to understand what is this 'SD Bus Voltage'. >> For our controller and sdhci_set_power(), it seems to stand for VMMC. >> For me, everything concerning bus voltage is related to VQMMC, so I was >> disappointed. > > Do you plan to take the patch for VMMC? If yes, I will send a new patch > for the device tree (I'll only add vmmc, not vqmmc as discussed); if > not, forget these two patches. > Which patch do you refer to for "VMMC"? Kind regards Uffe -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/