Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752285AbdHIFeW (ORCPT ); Wed, 9 Aug 2017 01:34:22 -0400 Received: from mail-oi0-f48.google.com ([209.85.218.48]:35987 "EHLO mail-oi0-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750873AbdHIFeT (ORCPT ); Wed, 9 Aug 2017 01:34:19 -0400 MIME-Version: 1.0 In-Reply-To: References: From: Baolin Wang Date: Wed, 9 Aug 2017 13:34:18 +0800 Message-ID: Subject: Re: [PATCH v4 0/3] Introduce USB charger support in USB phy To: Felipe Balbi , Greg KH , Sebastian Reichel , Lee Jones , Rob Herring , Mark Rutland Cc: Jun Li , Peter Chen , Mark Brown , John Stultz , NeilBrown , patches@opensource.wolfsonmicro.com, Baolin Wang , Linux PM list , USB , device-mainlining@lists.linuxfoundation.org, LKML , 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: 1847 Lines: 50 Hi Felipe, On 27 July 2017 at 13:14, Baolin Wang wrote: > Currently the Linux kernel does not provide any standard integration of this > feature that integrates the USB subsystem with the system power regulation > provided by PMICs meaning that either vendors must add this in their kernels > or USB gadget devices based on Linux (such as mobile phones) may not behave > as they should. Thus provide a standard USB charger support in USB phy core > for doing this in kernel. > > Now introduce one user with wm831x_power to support and test the usb charger. > In future we will also cnvert below power drivers: > drivers/power/supply/axp288_charger.c > drivers/power/supply/bq24190_charger.c > drivers/power/supply/charger-manager.c > drivers/power/supply/qcom_smbb.c > > Changes since v3: > - Bail out errors when failed to find usb phy for wm831x_power driver. > Changes since v2: > - Add DT binding documentation for wm831x_power driver. > - Change 'usb-phy' as one optional property for wm831x_power driver. > Changes since v1: > - Fix building errors. Do you have any comments about usb charger support in usb phy core? Thanks. > > Baolin Wang (3): > include: uapi: usb: Introduce USB charger type and state definition > usb: phy: Add USB charger support > power: wm831x_power: Support USB charger current limit management > > Documentation/devicetree/bindings/mfd/wm831x.txt | 1 + > drivers/power/supply/wm831x_power.c | 72 ++++++ > drivers/usb/phy/phy.c | 272 ++++++++++++++++++++++ > include/linux/usb/phy.h | 49 ++++ > include/uapi/linux/usb/charger.h | 31 +++ > 5 files changed, 425 insertions(+) > create mode 100644 include/uapi/linux/usb/charger.h > > -- > 1.7.9.5 > -- Baolin.wang Best Regards