From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751385Ab3LIXvR (ORCPT ); Mon, 9 Dec 2013 18:51:17 -0500 Received: from mga02.intel.com ([134.134.136.20]:45379 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751168Ab3LIXvL (ORCPT ); Mon, 9 Dec 2013 18:51:11 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.93,861,1378882800"; d="scan'208";a="421949711" From: David Cohen To: balbi@ti.com, gregkh@linuxfoundation.org Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, mina86@mina86.com, stern@rowland.harvard.edu, David Cohen Subject: [PATCH v7 0/5] add gadget quirk to adapt f_fs for DWC3 Date: Mon, 9 Dec 2013 15:55:33 -0800 Message-Id: <1386633338-10919-1-git-send-email-david.a.cohen@linux.intel.com> X-Mailer: git-send-email 1.8.4.2 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, These patches are a proposal to add gadget quirks in an immediate objective to adapt f_fs when using DWC3 controller. But the quirk solution is generic and can be used by other controllers to adapt gadget functions to their non-standard restrictions. This change is necessary to make Android's adbd service to work on Intel Merrifield with f_fs instead of out-of-tree android gadget. This new patch set was tested and validated in my environment: - Intel Merrifield was able to use DWC3/f_fs with adbd service (it wasn't before). Changes from v6 to v7: - Downgraded patch set version to v5 as per Felipe Balbi request, with some changes: - usb_ep_align_maxpacketsize() macro was change to usp_ep_align_maybe() in order to check gadget->quirk_ep_out_aligned_size internally. - updated patch 4/5 to use new macro usp_ep_align_maybe() and to fix following compilation warning: $ drivers/usb/gadget/f_fs.c: In function 'ffs_epfile_io': $ drivers/usb/gadget/f_fs.c:857:124: warning: comparison of distinct pointer types lacks a cast [enabled by default] --- David Cohen (3): usb: gadget: move bitflags to the end of usb_gadget struct usb: gadget: add quirk_ep_out_aligned_size field to struct usb_gadget usb: dwc3: set gadget's quirk ep_out_align_size Michal Nazarewicz (2): usb: gadget: f_fs: remove loop from I/O function usb: f_fs: check quirk to pad epout buf size when not aligned to maxpacketsize drivers/usb/dwc3/gadget.c | 6 +++ drivers/usb/gadget/f_fs.c | 115 +++++++++++++++++++++++---------------------- include/linux/usb/gadget.h | 39 +++++++++++---- 3 files changed, 94 insertions(+), 66 deletions(-) -- 1.8.4.2