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[2001:14ba:a073:af00:264b:feff:fe8b:be8a]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-5a28530cf9esm2108092e87.82.2026.03.22.18.21.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 22 Mar 2026 18:21:11 -0700 (PDT) From: Dmitry Baryshkov Date: Mon, 23 Mar 2026 03:20:59 +0200 Subject: [PATCH 3/3] soc: qcom: ocmem: return -EPROBE_DEFER is ocmem is not available 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: <20260323-ocmem-v1-3-ad9bcae44763@oss.qualcomm.com> References: <20260323-ocmem-v1-0-ad9bcae44763@oss.qualcomm.com> In-Reply-To: <20260323-ocmem-v1-0-ad9bcae44763@oss.qualcomm.com> To: Bjorn Andersson , Konrad Dybcio , Stephen Boyd , Georgi Djakov , Rob Clark , Brian Masney Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1061; i=dmitry.baryshkov@oss.qualcomm.com; h=from:subject:message-id; bh=UEe0vwuO9QTMhJ+apyvAG1ylenYlKwpsikwaza6PkzQ=; b=owEBbQGS/pANAwAKAYs8ij4CKSjVAcsmYgBpwJV6wZQG9IeCuG02S5X/96bqTli4qchnKjM43 gUpxPr3hUeJATMEAAEKAB0WIQRMcISVXLJjVvC4lX+LPIo+Aiko1QUCacCVegAKCRCLPIo+Aiko 1XTwB/0aDfenlYeLU7IKUGA4rc/scQgvSdTYjBLWtAhcPrvouPi+h6ORgGEiPe4EhH7bZD3mNux nm9ecVUVSNvXSvRosvOJnvhj94iBBSDp8lvINCU/ZOzRWLET76TyBXxZNBPN5QLP1mZcuBqyxbk Yu/yG+CFca/7ZG2BnpW0gMqjbD9/2sVvAxzv6IBKg0QzAazhmolXsGCuLWvcZun1OdN9moSxfYO rQEskzTaJ27YaanoLa66wslKgsRGNMY+jh+x6UPZ6HLxP7EylaRzeXyezNrLv+ydyyVHi4JYrx8 sEvRFvhRd+DjPEZ8RPRd+UYGKIVAPoq+BN+Qg2vYWH3bIC89 X-Developer-Key: i=dmitry.baryshkov@oss.qualcomm.com; a=openpgp; fpr=8F88381DD5C873E4AE487DA5199BF1243632046A X-Proofpoint-ORIG-GUID: G4jNG9gSSZG03MIwMipYYcHIpn7ZJGuZ X-Authority-Analysis: v=2.4 cv=ZPDaWH7b c=1 sm=1 tr=0 ts=69c0958b cx=c_pps a=qKBjSQ1v91RyAK45QCPf5w==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=Um2Pa8k9VHT-vaBCBUpS:22 a=EUspDBNiAAAA:8 a=L7hVWDwwpjkKPWMWytsA:9 a=QEXdDO2ut3YA:10 a=NFOGd7dJGGMPyQGDc5-O:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzIzMDAwOCBTYWx0ZWRfX1LprHrzVaC32 7OVI7iJywUhXKs8xMVHQfuSoTaA1Igneh0NdOtsh0KU2eQZECCcl7nc4TMNuy9I3ZqS0pop8PGc ukCrHcWHHn55KYpQum43baivqYt86lr9EavMrXa/MFcLNib4RHVmDKBp6VodnCyAKWaaauxnrfy gsCs1TQi2LBy5xpxPKd/D+6KhOImIyHJv5pJ2VXw4dVad3GVl0HYh8TPNB4qlBt7S9vf8X/RNMM dS7elmR9Z4752FdGGJi38zC+sGQWjoKpNxxse7ZlrHYDUrPhnpEvSXBPL8ApYiELOV2jus3dzsR Z7BH2Fl88df3Anm12epn7R3JHs2fxLazpQuuZmOQj1kPOcN8W6ApDBvKdRvBbBJDx1KewwupfkI H6IH/1wz7LcHwOLGeXgRLJjrdPHdEGOtV9ks8vSmze3KofBdHMR/muwcbMRwCcX5VZolblTOQAV toGPygOL0u8WRAbWI3w== X-Proofpoint-GUID: G4jNG9gSSZG03MIwMipYYcHIpn7ZJGuZ 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=2026-03-22_07,2026-03-20_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 priorityscore=1501 bulkscore=0 clxscore=1015 impostorscore=0 adultscore=0 lowpriorityscore=0 suspectscore=0 malwarescore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603230008 If OCMEM is declared in DT, it is expected that it is present and handled by the driver. The GPU driver will ignore -ENODEV error, which typically means that OCMEM isn't defined in DT. Let ocmem return -EPROBE_DEFER if it supposed to be used, but it is not probed (yet). Fixes: 88c1e9404f1d ("soc: qcom: add OCMEM driver") Signed-off-by: Dmitry Baryshkov Reviewed-by: Konrad Dybcio --- drivers/soc/qcom/ocmem.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/soc/qcom/ocmem.c b/drivers/soc/qcom/ocmem.c index d57baa9cfa03..c35a98984acc 100644 --- a/drivers/soc/qcom/ocmem.c +++ b/drivers/soc/qcom/ocmem.c @@ -203,10 +203,9 @@ struct ocmem *of_get_ocmem(struct device *dev) =20 ocmem =3D platform_get_drvdata(pdev); put_device(&pdev->dev); - if (!ocmem) { - dev_err(dev, "Cannot get ocmem\n"); - return ERR_PTR(-ENODEV); - } + if (!ocmem) + return ERR_PTR(dev_err_probe(dev, -EPROBE_DEFER, "Cannot get ocmem\n")); + return ocmem; } EXPORT_SYMBOL_GPL(of_get_ocmem); --=20 2.47.3