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[2001:14ba:a0c3:3a00:264b:feff:fe8b:be8a]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-54b095a21b0sm1251697e87.243.2025.03.31.22.11.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 31 Mar 2025 22:11:59 -0700 (PDT) From: Dmitry Baryshkov Date: Tue, 01 Apr 2025 08:11:36 +0300 Subject: [PATCH 4/7] drm/bridge: analogic_dp: drop panel_lock Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250401-panel-return-void-v1-4-93e1be33dc8d@oss.qualcomm.com> References: <20250401-panel-return-void-v1-0-93e1be33dc8d@oss.qualcomm.com> In-Reply-To: <20250401-panel-return-void-v1-0-93e1be33dc8d@oss.qualcomm.com> To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Jessica Zhang Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1985; i=dmitry.baryshkov@oss.qualcomm.com; h=from:subject:message-id; bh=ljnxHNh77aJKTn5PBnRyQ46dmjys7Q6lroI6kcr2K88=; b=owEBbQGS/pANAwAKAYs8ij4CKSjVAcsmYgBn63WQ9JDhpO2O3km+J66d3OvjPxAK1AuTTf1XK 9nMcbqhsXqJATMEAAEKAB0WIQRMcISVXLJjVvC4lX+LPIo+Aiko1QUCZ+t1kAAKCRCLPIo+Aiko 1d2jCACvEOox/CQElqeioCPPoLsvAIxMwsML921E+NqK2RDDDcNofLsW12QfFmN4lf9xy3tbJ2h 021oWlZ6tZF0FEUMjYqCe6OgIOaDaOCH2M1x0QVRLzVYOPzh/IAZeVGMA0VCtwylSfD17NqvK91 vJ39nQupM51Yiq1BrM8jXCQG0hHmAfK8L5gpjSbL2Rxz6usoM1fbhtZdzKad+RJb7xsS9+W0DWu wljR/PcNZNKEiZDd5L15P74eNEgh1BAVP3UYCUOWxSJphSs4oHFSKi/KpT23St7eLsPh/S+MR+/ H8xy5QoBR5qqJgTmEQF3iU9JXnBFdY7sXLZmSeGl7g9YrCPQ X-Developer-Key: i=dmitry.baryshkov@oss.qualcomm.com; a=openpgp; fpr=8F88381DD5C873E4AE487DA5199BF1243632046A X-Proofpoint-ORIG-GUID: iMTuo-_TY0CiLpoII72vYc62Gnpk-hHw X-Proofpoint-GUID: iMTuo-_TY0CiLpoII72vYc62Gnpk-hHw X-Authority-Analysis: v=2.4 cv=MPlgmNZl c=1 sm=1 tr=0 ts=67eb75a3 cx=c_pps a=HLyN3IcIa5EE8TELMZ618Q==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=XR8D0OoHHMoA:10 a=EUspDBNiAAAA:8 a=KfGKz8IhEdz9gtDduwEA:9 a=QEXdDO2ut3YA:10 a=bTQJ7kPSJx9SKPbeHEYW:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1095,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-04-01_01,2025-03-27_02,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 malwarescore=0 suspectscore=0 phishscore=0 spamscore=0 clxscore=1015 bulkscore=0 mlxlogscore=999 impostorscore=0 mlxscore=0 adultscore=0 priorityscore=1501 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2502280000 definitions=main-2504010033 The analogix_dp_prepare_panel() function is called from bridge's atomic_pre_enable() and atomic_post_disable() callbacks, which can not happen simultaneously. Drop the useless mutex. Signed-off-by: Dmitry Baryshkov Reviewed-by: Neil Armstrong Tested-by: Damon Ding --- drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 5 ----- drivers/gpu/drm/bridge/analogix/analogix_dp_core.h | 2 -- 2 files changed, 7 deletions(-) diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/g= pu/drm/bridge/analogix/analogix_dp_core.c index 704c6169116eb2601d2ad02dc7294455ceff5460..1ec4d277fe6bb03ad9eb8451ae2= af5ad5ada0978 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c @@ -974,14 +974,11 @@ static int analogix_dp_prepare_panel(struct analogix_= dp_device *dp, if (!dp->plat_data->panel) return 0; =20 - mutex_lock(&dp->panel_lock); - if (prepare) ret =3D drm_panel_prepare(dp->plat_data->panel); else ret =3D drm_panel_unprepare(dp->plat_data->panel); =20 - mutex_unlock(&dp->panel_lock); return ret; } =20 @@ -1523,8 +1520,6 @@ analogix_dp_probe(struct device *dev, struct analogix= _dp_plat_data *plat_data) dp->dev =3D &pdev->dev; dp->dpms_mode =3D DRM_MODE_DPMS_OFF; =20 - mutex_init(&dp->panel_lock); - /* * platform dp driver need containor_of the plat_data to get * the driver private data, so we need to store the point of diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h b/drivers/g= pu/drm/bridge/analogix/analogix_dp_core.h index b679d5b71d276f458d905c936160f107225bc6c5..2b54120ba4a3ef55af518a0629a= 5c8469f275a0f 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h @@ -169,8 +169,6 @@ struct analogix_dp_device { bool fast_train_enable; bool psr_supported; =20 - struct mutex panel_lock; - struct analogix_dp_plat_data *plat_data; }; =20 --=20 2.39.5