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[2001:14ba:a073:af00:264b:feff:fe8b:be8a]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-5a3eee8c91csm2687521e87.19.2026.04.13.07.06.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 13 Apr 2026 07:06:19 -0700 (PDT) From: Dmitry Baryshkov Date: Mon, 13 Apr 2026 17:05:41 +0300 Subject: [PATCH v3 18/21] drm/panel: add devm_drm_panel_add() helper MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260413-waveshare-dsi-touch-v3-18-3aeb53022c32@oss.qualcomm.com> References: <20260413-waveshare-dsi-touch-v3-0-3aeb53022c32@oss.qualcomm.com> In-Reply-To: <20260413-waveshare-dsi-touch-v3-0-3aeb53022c32@oss.qualcomm.com> To: Neil Armstrong , Jessica Zhang , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Cong Yang , Ondrej Jirman , Javier Martinez Canillas , Jagan Teki , Liam Girdwood , Mark Brown , Linus Walleij , Bartosz Golaszewski , Jie Gan Cc: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org X-Mailer: b4 0.15.1 X-Developer-Signature: v=1; a=openpgp-sha256; l=2089; i=dmitry.baryshkov@oss.qualcomm.com; h=from:subject:message-id; bh=rf4el4++6e9jBpjjECUwGqmrfgQoRtn7snVn69MvoWU=; b=owEBbQGS/pANAwAKAYs8ij4CKSjVAcsmYgBp3Pgp36dO9d8sfKpSoa2iQ31yyNO8Ctp8WrrhH LXL4NK7WQyJATMEAAEKAB0WIQRMcISVXLJjVvC4lX+LPIo+Aiko1QUCadz4KQAKCRCLPIo+Aiko 1V0QCACnAkb/uJNfOqLJvZOMdoZDHqS3A+CKkd7WrYSl+1DpW8RrS7lFtt+GehaxZYzcW56jM5u BvUELCsVb4Q/AI4RdseuaZRFDN7hhZ1ZVNKsU3J4xEPBKdazX3fFFnhMjzxVfpCHYTIDFBCNoIQ NhFP52aq9E74NdJTipo6BVBjUGlir4QDFO6emDGGO5Kvq7ObR99dqNLfbjVApJYGhXQeDVyjhkg VvuYhVzBihGipeqVaknv8TNMagcu8VOCGp77OGd54TYCr3X1Pan8faJzNbk7jbNA6jvaDsQRmeE b0hFftgYc5yx5LWiG6lWS3gf3iQtgc8QcFSPUxb35yrLyVzJ X-Developer-Key: i=dmitry.baryshkov@oss.qualcomm.com; a=openpgp; fpr=8F88381DD5C873E4AE487DA5199BF1243632046A X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDEzMDEzOCBTYWx0ZWRfXz4B6tyywEV42 YzlZtSEwboPN3iO0H/Vjnmo+RE+DBWTFp80PuqK0+LLsTYSk85yW+D06GjduX/dKFcx+kUWfXXe g56G6YjkKBvHvnm+qPB4LqPFusMc7O6aMng5aJL4sjqRbKhBY+q3inVjvxuxjdwhC+RVHNbSmGL psCTrI/F8kYZDsszgEiXV7IcybO1MVjjfZ1YQzzKZa7DlLEzd/XaupJRQdory9mwJ5G3VlXbV5M N00ejJogqpvrhBW44MPpm+ecNJCwJomE1mDFfiooctq/CxH00COXlqRY9UPYYc6rTR+wa+j4gcX vGDZjsRVhE0Bn2huTJhHqsR6OuBAJ+KWmALUyozbPsHl1MAVKrSvW2AJNo+nkOxYh9mkF8ZzOdd k77r/Mc7PEQACaOlR1vOSSV1SPOJsvvfX7rl91HAovZjqW5Dzn39nqw4tqERjV7bWhGkCeiwK8L LVGskLy+57FDXtB+THw== X-Proofpoint-GUID: uacQuIApEPzoxi7GzmdafcqddPtYw4J_ X-Authority-Analysis: v=2.4 cv=D7x37PRj c=1 sm=1 tr=0 ts=69dcf85e cx=c_pps a=4ztaESFFfuz8Af0l9swBwA==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=A5OVakUREuEA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=YMgV9FUhrdKAYTUUvYB2:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=VYOP6asi5FRKG1UsDooA:9 a=QEXdDO2ut3YA:10 a=TPnrazJqx2CeVZ-ItzZ-:22 X-Proofpoint-ORIG-GUID: uacQuIApEPzoxi7GzmdafcqddPtYw4J_ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-04-13_03,2026-04-13_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 impostorscore=0 lowpriorityscore=0 adultscore=0 clxscore=1015 bulkscore=0 spamscore=0 malwarescore=0 priorityscore=1501 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604010000 definitions=main-2604130138 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Add devm_drm_panel_add(), devres-managed version of drm_panel_add(). It's not uncommon for the panel drivers to use devres functions for most of the resources. Provide corresponding replacement for drm_panel_add(). Reviewed-by: Linus Walleij Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/drm_panel.c | 23 +++++++++++++++++++++++ include/drm/drm_panel.h | 1 + 2 files changed, 24 insertions(+) diff --git a/drivers/gpu/drm/drm_panel.c b/drivers/gpu/drm/drm_panel.c index d1e6598ea3bc..a6029b699b73 100644 --- a/drivers/gpu/drm/drm_panel.c +++ b/drivers/gpu/drm/drm_panel.c @@ -101,6 +101,29 @@ void drm_panel_remove(struct drm_panel *panel) } EXPORT_SYMBOL(drm_panel_remove); +static void drm_panel_add_release(void *data) +{ + drm_panel_remove(data); +} + +/** + * devm_drm_panel_add - add a panel to the global registry using devres + * @panel: panel to add + * + * Add a panel to the global registry so that it can be looked + * up by display drivers. The panel to be added must have been + * allocated by devm_drm_panel_alloc(). Unlike drm_panel_add() with this + * function there is no need to call drm_panel_remove(), it will be called + * automatically. + */ +int devm_drm_panel_add(struct device *dev, struct drm_panel *panel) +{ + drm_panel_add(panel); + + return devm_add_action_or_reset(dev, drm_panel_add_release, panel); +} +EXPORT_SYMBOL(devm_drm_panel_add); + /** * drm_panel_prepare - power on a panel * @panel: DRM panel diff --git a/include/drm/drm_panel.h b/include/drm/drm_panel.h index 2407bfa60236..1fb9148dd095 100644 --- a/include/drm/drm_panel.h +++ b/include/drm/drm_panel.h @@ -329,6 +329,7 @@ void drm_panel_put(struct drm_panel *panel); void drm_panel_add(struct drm_panel *panel); void drm_panel_remove(struct drm_panel *panel); +int devm_drm_panel_add(struct device *dev, struct drm_panel *panel); void drm_panel_prepare(struct drm_panel *panel); void drm_panel_unprepare(struct drm_panel *panel); -- 2.47.3