From patchwork Wed Oct 12 12:02:26 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vinod Polimera X-Patchwork-Id: 614584 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 41248C433FE for ; Wed, 12 Oct 2022 12:02:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229577AbiJLMC4 (ORCPT ); Wed, 12 Oct 2022 08:02:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51496 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229502AbiJLMCz (ORCPT ); Wed, 12 Oct 2022 08:02:55 -0400 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4DC53A4BA1; Wed, 12 Oct 2022 05:02:54 -0700 (PDT) Received: from pps.filterd (m0279862.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 29C8dR0O004438; Wed, 12 Oct 2022 12:02:52 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : in-reply-to : references; s=qcppdkim1; bh=WMiXTUhsANyKwtU1kgDcixY5iL4SEDlcQ33BndswIII=; b=e2VvSsgXg4tGLs3zRdqgZYB9Bx1xBsuhcqOWzan805Xgc3XeznyWCRiDL2iGhJimCyHQ nUvxypeE9VbiS1tXF6BssTO+/Wa6rBlY1ZY2+L/xDSm2oKqrrHhoa9G/2eAQ0XhipiGS ef+8tL53XYq85s046x0jHu9R1EX3ITXL2X6RojqLf8tsoZ9tvfH9uluSb2tKuG/P4Na/ +RhtVul0an7OIxqaF19gbmy+xEByDyXBuETshHZvyYrz/OADQqSpMycKTIWxXvApPuud 1g8QVmwaieBA4aE3ZuUdKAdhdvQnvNYeCRzAclfcy0PSw0LLKPxQsNpjJXJDzGlnsTqr tw== Received: from apblrppmta02.qualcomm.com (blr-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.18.19]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3k5t8r0kng-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 12 Oct 2022 12:02:51 +0000 Received: from pps.filterd (APBLRPPMTA02.qualcomm.com [127.0.0.1]) by APBLRPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTP id 29CC2lOY026862; Wed, 12 Oct 2022 12:02:48 GMT Received: from pps.reinject (localhost [127.0.0.1]) by APBLRPPMTA02.qualcomm.com (PPS) with ESMTPS id 3k3jpu0t1n-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Wed, 12 Oct 2022 12:02:48 +0000 Received: from APBLRPPMTA02.qualcomm.com (APBLRPPMTA02.qualcomm.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 29CC2l8E026838; Wed, 12 Oct 2022 12:02:47 GMT Received: from vpolimer-linux.qualcomm.com (vpolimer-linux.qualcomm.com [10.204.67.235]) by APBLRPPMTA02.qualcomm.com (PPS) with ESMTP id 29CC2lgX026832; Wed, 12 Oct 2022 12:02:47 +0000 Received: by vpolimer-linux.qualcomm.com (Postfix, from userid 463814) id 8AD713D2E; Wed, 12 Oct 2022 17:32:46 +0530 (IST) From: Vinod Polimera To: dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, devicetree@vger.kernel.org Cc: Vinod Polimera , linux-kernel@vger.kernel.org, robdclark@gmail.com, dianders@chromium.org, swboyd@chromium.org, quic_kalyant@quicinc.com, dmitry.baryshkov@linaro.org, quic_khsieh@quicinc.com, quic_vproddut@quicinc.com, quic_bjorande@quicinc.com, quic_aravindh@quicinc.com, quic_abhinavk@quicinc.com, quic_sbillaka@quicinc.com Subject: [PATCH v8 02/15] drm: add helper functions to retrieve old and new crtc Date: Wed, 12 Oct 2022 17:32:26 +0530 Message-Id: <1665576159-3749-3-git-send-email-quic_vpolimer@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1665576159-3749-1-git-send-email-quic_vpolimer@quicinc.com> References: <1665576159-3749-1-git-send-email-quic_vpolimer@quicinc.com> X-QCInternal: smtphost X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: SPayHr8r0yd0B1cy9U_b5Ruo9JZjlfiv X-Proofpoint-ORIG-GUID: SPayHr8r0yd0B1cy9U_b5Ruo9JZjlfiv X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.895,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2022-10-12_06,2022-10-12_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 adultscore=0 impostorscore=0 phishscore=0 clxscore=1015 suspectscore=0 spamscore=0 mlxlogscore=679 lowpriorityscore=0 malwarescore=0 priorityscore=1501 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2209130000 definitions=main-2210120079 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Add new helper functions, drm_atomic_get_old_crtc_for_encoder and drm_atomic_get_new_crtc_for_encoder to retrieve the corresponding crtc for the encoder. Signed-off-by: Sankeerth Billakanti Signed-off-by: Vinod Polimera Reviewed-by: Douglas Anderson --- drivers/gpu/drm/drm_atomic.c | 60 ++++++++++++++++++++++++++++++++++++++++++++ include/drm/drm_atomic.h | 7 ++++++ 2 files changed, 67 insertions(+) diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index f197f59..941fd6d 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -985,6 +985,66 @@ drm_atomic_get_new_connector_for_encoder(struct drm_atomic_state *state, EXPORT_SYMBOL(drm_atomic_get_new_connector_for_encoder); /** + * drm_atomic_get_old_crtc_for_encoder - Get old crtc for an encoder + * @state: Atomic state + * @encoder: The encoder to fetch the crtc state for + * + * This function finds and returns the crtc that was connected to @encoder + * as specified by the @state. + * + * Returns: The old crtc connected to @encoder, or NULL if the encoder is + * not connected. + */ +struct drm_crtc * +drm_atomic_get_old_crtc_for_encoder(struct drm_atomic_state *state, + struct drm_encoder *encoder) +{ + struct drm_connector *connector; + struct drm_connector_state *conn_state; + + connector = drm_atomic_get_old_connector_for_encoder(state, encoder); + if (!connector) + return NULL; + + conn_state = drm_atomic_get_old_connector_state(state, connector); + if (!conn_state) + return NULL; + + return conn_state->crtc; +} +EXPORT_SYMBOL(drm_atomic_get_old_crtc_for_encoder); + +/** + * drm_atomic_get_new_crtc_for_encoder - Get new crtc for an encoder + * @state: Atomic state + * @encoder: The encoder to fetch the crtc state for + * + * This function finds and returns the crtc that will be connected to @encoder + * as specified by the @state. + * + * Returns: The new crtc connected to @encoder, or NULL if the encoder is + * not connected. + */ +struct drm_crtc * +drm_atomic_get_new_crtc_for_encoder(struct drm_atomic_state *state, + struct drm_encoder *encoder) +{ + struct drm_connector *connector; + struct drm_connector_state *conn_state; + + connector = drm_atomic_get_new_connector_for_encoder(state, encoder); + if (!connector) + return NULL; + + conn_state = drm_atomic_get_new_connector_state(state, connector); + if (!conn_state) + return NULL; + + return conn_state->crtc; +} +EXPORT_SYMBOL(drm_atomic_get_new_crtc_for_encoder); + +/** * drm_atomic_get_connector_state - get connector state * @state: global atomic state object * @connector: connector to get state object for diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h index 10b1990..fdbd656 100644 --- a/include/drm/drm_atomic.h +++ b/include/drm/drm_atomic.h @@ -528,6 +528,13 @@ struct drm_connector * drm_atomic_get_new_connector_for_encoder(struct drm_atomic_state *state, struct drm_encoder *encoder); +struct drm_crtc * +drm_atomic_get_old_crtc_for_encoder(struct drm_atomic_state *state, + struct drm_encoder *encoder); +struct drm_crtc * +drm_atomic_get_new_crtc_for_encoder(struct drm_atomic_state *state, + struct drm_encoder *encoder); + /** * drm_atomic_get_existing_crtc_state - get CRTC state, if it exists * @state: global atomic state object