From patchwork Thu Oct 25 18:05:12 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Ville Syrjala X-Patchwork-Id: 1646381 Return-Path: X-Original-To: patchwork-dri-devel@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by patchwork2.kernel.org (Postfix) with ESMTP id 53215DF2AB for ; Thu, 25 Oct 2012 18:14:39 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2C629A0A45 for ; Thu, 25 Oct 2012 11:14:39 -0700 (PDT) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTP id 2A9B5A0A2C for ; Thu, 25 Oct 2012 11:06:29 -0700 (PDT) Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga101.jf.intel.com with ESMTP; 25 Oct 2012 11:06:29 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.80,648,1344236400"; d="scan'208";a="210833041" Received: from stinkbox.fi.intel.com (HELO stinkbox) ([10.237.72.168]) by orsmga001.jf.intel.com with SMTP; 25 Oct 2012 11:06:26 -0700 Received: by stinkbox (sSMTP sendmail emulation); Thu, 25 Oct 2012 21:06:26 +0300 From: ville.syrjala@linux.intel.com To: dri-devel@lists.freedesktop.org Subject: [PATCH 09/51] drm: Allow signed values for range properties Date: Thu, 25 Oct 2012 21:05:12 +0300 Message-Id: <1351188354-24233-10-git-send-email-ville.syrjala@linux.intel.com> X-Mailer: git-send-email 1.7.8.6 In-Reply-To: <1351188354-24233-1-git-send-email-ville.syrjala@linux.intel.com> References: <1351188354-24233-1-git-send-email-ville.syrjala@linux.intel.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces+patchwork-dri-devel=patchwork.kernel.org@lists.freedesktop.org Errors-To: dri-devel-bounces+patchwork-dri-devel=patchwork.kernel.org@lists.freedesktop.org From: Ville Syrjälä Treat a range property as signed when the unsigned minimum value is larger than the unsigned maximum value. Signed-off-by: Ville Syrjälä --- drivers/gpu/drm/drm_crtc.c | 17 ++++++++++++++--- 1 files changed, 14 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index ddd7252..8ee7e45 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -3207,14 +3207,25 @@ int drm_mode_connector_update_edid_property(struct drm_connector *connector, } EXPORT_SYMBOL(drm_mode_connector_update_edid_property); -static bool drm_property_change_is_valid(struct drm_property *property, +static bool range_property_is_signed(const struct drm_property *property) +{ + return property->values[0] > property->values[1]; +} + +static bool drm_property_change_is_valid(const struct drm_property *property, uint64_t value) { if (property->flags & DRM_MODE_PROP_IMMUTABLE) return false; if (property->flags & DRM_MODE_PROP_RANGE) { - if (value < property->values[0] || value > property->values[1]) - return false; + if (range_property_is_signed(property)) { + if ((int64_t)value < (int64_t)property->values[0] || + (int64_t)value > (int64_t)property->values[1]) + return false; + } else { + if (value < property->values[0] || value > property->values[1]) + return false; + } return true; } else if (property->flags & DRM_MODE_PROP_BITMASK) { int i;