From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751298AbeDYHyE (ORCPT ); Wed, 25 Apr 2018 03:54:04 -0400 Received: from mx07-00178001.pphosted.com ([62.209.51.94]:40353 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751069AbeDYHyC (ORCPT ); Wed, 25 Apr 2018 03:54:02 -0400 From: Philippe Cornu To: Archit Taneja , Andrzej Hajda , Laurent Pinchart , David Airlie , Rob Herring , "Mark Rutland" , , , CC: Yannick Fertre , Philippe Cornu , Benjamin Gaignard , Alexandre Torgue Subject: [PATCH v2 0/2] drm/bridge: sii902x: add optional power supplies Date: Wed, 25 Apr 2018 09:53:12 +0200 Message-ID: <20180425075314.19137-1-philippe.cornu@st.com> X-Mailer: git-send-email 2.15.1 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.129.5.66] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-04-25_02:,, signatures=0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patchset adds optional power supplies to the sii902x drm bridge driver. Version 2: - merge avcc12 & cvcc12 to a single vcc12 supply as suggested by Laurent Pinchart (see discussion details in https://patchwork.freedesktop.org/patch/216058/) - improve error messages following Laurent Pinchart comments. - note about power consumption: as sii902x input IOs are not "io safe", it is important to enable/disable voltage regulators during probe/remove phases to avoid damages. Then, the only way to improve the power consumption is to add the sii902x standy mode. My actual platform is not an handheld device so power consumption is not critical. But in the future, it could be nice to add the standby mode, paying attention to wake-up events (hdmi cable plug)... Version 1: - Initial commit Philippe Cornu (2): dt-bindings/display/bridge: sii902x: add optional power supplies drm/bridge: sii902x: add optional power supplies .../devicetree/bindings/display/bridge/sii902x.txt | 2 ++ drivers/gpu/drm/bridge/sii902x.c | 38 +++++++++++++++++++--- 2 files changed, 36 insertions(+), 4 deletions(-) -- 2.15.1