From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f66.google.com ([74.125.82.66]:43840 "EHLO mail-wm0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751178AbdLYCW4 (ORCPT ); Sun, 24 Dec 2017 21:22:56 -0500 Received: by mail-wm0-f66.google.com with SMTP id n138so30520681wmg.2 for ; Sun, 24 Dec 2017 18:22:55 -0800 (PST) From: Javier Martinez Canillas To: linux-kernel@vger.kernel.org Cc: James Ettle , Hans de Goede , Azhar Shaikh , Javier Martinez Canillas , Jason Gunthorpe , linux-integrity@vger.kernel.org, Peter Huewe , Jarkko Sakkinen Subject: [PATCH v2 0/3] tpm: fix PS/2 devices not working on Braswell systems due CLKRUN enabled Date: Mon, 25 Dec 2017 03:22:48 +0100 Message-Id: <20171225022251.6464-1-javierm@redhat.com> Sender: linux-integrity-owner@vger.kernel.org List-ID: Hello, Commit 5e572cab92f0 ("tpm: Enable CLKRUN protocol for Braswell systems") added logic in the TPM TIS driver to disable the Low Pin Count CLKRUN signal during TPM transactions. Unfortunately this breaks other devices that are attached to the LPC bus like for example PS/2 mouse and keyboards. The bug was reported to the Fedora kernel [0] and the kernel bugzilla [1]. This issue and the propossed solution were discussed in this [2] thread, and the reporter (Jame Ettle) confirmed that his system works again after the fix in this series. The patches are based on top or Jarkko Sakkinen's linux-tpmdd [3] tree. Changes since v1: - Add collected tags - Drop patch that fixed a bug in the error path since was already fixed. [0]: https://bugzilla.redhat.com/show_bug.cgi?id=1498987 [1]: https://bugzilla.kernel.org/show_bug.cgi?id=197287 [2]: https://patchwork.kernel.org/patch/10119417/ [3]: git.infradead.org/users/jjs/linux-tpmdd.git Best regards, Javier Javier Martinez Canillas (3): tpm: delete the TPM_TIS_CLK_ENABLE flag tpm: follow coding style for variable declaration in tpm_tis_core_init() tpm: only attempt to disable the LPC CLKRUN if is already enabled drivers/char/tpm/tpm_tis.c | 15 --------------- drivers/char/tpm/tpm_tis_core.c | 17 +++++++++++++---- drivers/char/tpm/tpm_tis_core.h | 1 - 3 files changed, 13 insertions(+), 20 deletions(-) -- 2.14.3