Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S938542AbcLOQa5 (ORCPT ); Thu, 15 Dec 2016 11:30:57 -0500 Received: from mail-wm0-f50.google.com ([74.125.82.50]:37911 "EHLO mail-wm0-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758037AbcLOQay (ORCPT ); Thu, 15 Dec 2016 11:30:54 -0500 From: Axel Haslam To: broonie@kernel.org, lgirdwood@gmail.com, khilman@baylibre.com, nsekhar@ti.com, david@lechnology.com, robh+dt@kernel.org Cc: linux-kernel@vger.kernel.org, Axel Haslam Subject: [PATCHv4 0/2] regulator: handling of error conditions for usb drivers Date: Thu, 15 Dec 2016 17:29:53 +0100 Message-Id: <20161215162955.3940-1-ahaslam@baylibre.com> X-Mailer: git-send-email 2.9.3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1183 Lines: 38 Some usb drivers rely on external power switches/regulators for the port vbus, and some of these drivers are still using a plain gpio to control the enable and over current indicator pins. To make these drivers more generic, we can use a regulator to handle vbus, and send and over current event, but we are missing a way to transmit the over current pin status, which the usb layer may poll at any time. These patches extend the fixed regulator driver to handle an optional over current gpio pin. Changes v3.1 -> 4 * register irq after regulator (Mark) Changes v3 -> 3.1 * added Acked-by for DT bindings Changes v2 -> v3 * dropped merged patch to add new API * rebased on top of regulator-next Changes v1->v2 * add new API to get error status instead of extending events (Mark) * use gpiod for fixed regulator: This spears us extra platform data and bindings Axel Haslam (2): regulator: fixed: dt: Allow an optional over current pin regulator: fixed: Handle optional overcurrent pin .../bindings/regulator/fixed-regulator.txt | 2 + drivers/regulator/fixed.c | 56 ++++++++++++++++++++++ 2 files changed, 58 insertions(+) -- 2.9.3