Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755754AbbDUPdF (ORCPT ); Tue, 21 Apr 2015 11:33:05 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:57163 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755435AbbDUPc6 (ORCPT ); Tue, 21 Apr 2015 11:32:58 -0400 From: Luis Henriques To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Daniel Martin , Benjamin Tissoires , Dmitry Torokhov , Luis Henriques Subject: [PATCH 3.16.y-ckt 026/144] Input: synaptics - query min dimensions for fw v8.1 Date: Tue, 21 Apr 2015 16:30:11 +0100 Message-Id: <1429630329-21748-27-git-send-email-luis.henriques@canonical.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1429630329-21748-1-git-send-email-luis.henriques@canonical.com> References: <1429630329-21748-1-git-send-email-luis.henriques@canonical.com> X-Extended-Stable: 3.16 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2136 Lines: 53 3.16.7-ckt10 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Daniel Martin commit ac097930f0730a9b777737de2b51e0fc49d2be7a upstream. Query the min dimensions even if the check SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 7 fails, but we know that the firmware version 8.1 is safe. With that we don't need quirks for post-2013 models anymore as they expose correct min and max dimensions. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=91541 Signed-off-by: Daniel Martin re-order the tests to check SYN_CAP_MIN_DIMENSIONS even on FW 8.1 Signed-off-by: Benjamin Tissoires Acked-by: Hans de Goede Signed-off-by: Dmitry Torokhov Signed-off-by: Luis Henriques --- drivers/input/mouse/synaptics.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c index 9240d6fa0c6d..9273eaf3e93e 100644 --- a/drivers/input/mouse/synaptics.c +++ b/drivers/input/mouse/synaptics.c @@ -365,8 +365,14 @@ static int synaptics_resolution(struct psmouse *psmouse) } } - if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 7 && - SYN_CAP_MIN_DIMENSIONS(priv->ext_cap_0c)) { + if (SYN_CAP_MIN_DIMENSIONS(priv->ext_cap_0c) && + (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 7 || + /* + * Firmware v8.1 does not report proper number of extended + * capabilities, but has been proven to report correct min + * coordinates. + */ + SYN_ID_FULL(priv->identity) == 0x801)) { if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MIN_COORDS, resp)) { psmouse_warn(psmouse, "device claims to have min coordinates query, but I'm not able to read it.\n"); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/