From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752000AbaEZJVt (ORCPT ); Mon, 26 May 2014 05:21:49 -0400 Received: from arroyo.ext.ti.com ([192.94.94.40]:59723 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751882AbaEZJVq (ORCPT ); Mon, 26 May 2014 05:21:46 -0400 From: George Cherian To: , , CC: , , , , George Cherian Subject: [PATCH v6 0/5] Add support for SW babble Control Date: Mon, 26 May 2014 14:50:07 +0530 Message-ID: <1401096012-6895-1-git-send-email-george.cherian@ti.com> X-Mailer: git-send-email 1.8.3.1 MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Series add support for SW babble control logic found in new silicon versions of AM335x. Runtime differentiation of silicon version is done by checking the BABBLE_CTL register. For newer silicon the register default value read is 0x4 and for older versions its 0x0. Patch 1 -> Handle Babble only if MUSB is in HOST mode Patch 2 -> Convert recover work to delayed work. Patch 3 -> usb_phy_vbus_(off/_on) are NOPs for am335x PHY so use usb_phy(_shutdown/_init) in musb_platform_reset() Patch 4 -> Add return value for musb_platform_reset() in prepration to support SW babble_ctrl Patch 5 -> Add and Enable sw babble control for newer silicon v5 -> v6 : Squash patch 5 and 6 form v5 to avoid build warnings. v4 -> v5 : Added a debug print before resetting MUSB. changed a musb_readb to dsps_readb introduced in Patch#5 of v4. v3 -> v4 : Fixes an issue in gagdet mode - BUS RESET should not be handled as a BABBLE. Added a check for the same.(Patch #1) Enable sw babble control properly (Patch #6) v2 -> v3 : Modify musb_platform_reset() to return zero on success. George Cherian (5): usb: musb: core: Handle Babble condition only in HOST mode usb: musb: core: Convert babble recover work to delayed work usb: musb: dsps: Call usb_phy(_shutdown/_init) during musb_platform_reset() usb: musb: core: Convert the musb_platform_reset to have a return value. usb: musb: dsps: Add the sw_babble_control() and Enable for newer silicon drivers/usb/musb/musb_core.c | 27 ++++++++------ drivers/usb/musb/musb_core.h | 12 +++--- drivers/usb/musb/musb_dsps.c | 88 ++++++++++++++++++++++++++++++++++++++++++-- drivers/usb/musb/musb_regs.h | 7 ++++ 4 files changed, 114 insertions(+), 20 deletions(-) -- 1.8.3.1