From patchwork Thu Jun 28 13:13:13 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= X-Patchwork-Id: 10493921 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id EFB35603EE for ; Thu, 28 Jun 2018 13:14:28 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DC7812A04A for ; Thu, 28 Jun 2018 13:14:28 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D05C12A06F; Thu, 28 Jun 2018 13:14:28 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 885762A052 for ; Thu, 28 Jun 2018 13:14:28 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id DA4386ED93; Thu, 28 Jun 2018 13:13:51 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6B1E26ED8E; Thu, 28 Jun 2018 13:13:48 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 28 Jun 2018 06:13:48 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.51,283,1526367600"; d="scan'208";a="68047578" Received: from stinkbox.fi.intel.com (HELO stinkbox) ([10.237.72.174]) by fmsmga001.fm.intel.com with SMTP; 28 Jun 2018 06:13:45 -0700 Received: by stinkbox (sSMTP sendmail emulation); Thu, 28 Jun 2018 16:13:45 +0300 From: Ville Syrjala To: dri-devel@lists.freedesktop.org Date: Thu, 28 Jun 2018 16:13:13 +0300 Message-Id: <20180628131315.14156-8-ville.syrjala@linux.intel.com> X-Mailer: git-send-email 2.16.4 In-Reply-To: <20180628131315.14156-1-ville.syrjala@linux.intel.com> References: <20180628131315.14156-1-ville.syrjala@linux.intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v2 7/9] drm: Add drm_connector_has_possible_encoder() X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: intel-gfx@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP From: Ville Syrjälä Add a small helper for checking whether a connector and encoder are associated with each other. Signed-off-by: Ville Syrjälä --- drivers/gpu/drm/drm_connector.c | 23 +++++++++++++++++++++++ include/drm/drm_connector.h | 3 +++ 2 files changed, 26 insertions(+) diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index 186febcf4e55..84ff2fcdcb55 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -331,6 +331,29 @@ int drm_mode_connector_attach_encoder(struct drm_connector *connector, } EXPORT_SYMBOL(drm_mode_connector_attach_encoder); +/** + * drm_connector_has_possible_encoder - check if the connector and encoder are assosicated with each other + * @connector: the connector + * @encoder: the encoder + * + * Returns: + * True if @encoder is one of the possible encoders for @connector. + */ +bool drm_connector_has_possible_encoder(struct drm_connector *connector, + struct drm_encoder *encoder) +{ + struct drm_encoder *enc; + int i; + + drm_connector_for_each_possible_encoder(connector, enc, i) { + if (enc == encoder) + return true; + } + + return false; +} +EXPORT_SYMBOL(drm_connector_has_possible_encoder); + static void drm_mode_remove(struct drm_connector *connector, struct drm_display_mode *mode) { diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index 8de3a3aa516a..9c59485fec36 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -1181,6 +1181,9 @@ struct drm_connector * drm_connector_list_iter_next(struct drm_connector_list_iter *iter); void drm_connector_list_iter_end(struct drm_connector_list_iter *iter); +bool drm_connector_has_possible_encoder(struct drm_connector *connector, + struct drm_encoder *encoder); + /** * drm_for_each_connector_iter - connector_list iterator macro * @connector: &struct drm_connector pointer used as cursor