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Mon, 27 Apr 2026 02:18:48 -0700 (PDT) X-Received: by 2002:a17:90b:37cb:b0:35f:d56d:1c45 with SMTP id 98e67ed59e1d1-3614041bc7cmr38625158a91.12.1777281528337; Mon, 27 Apr 2026 02:18:48 -0700 (PDT) Received: from [10.218.14.97] ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3613f56ecbesm11810292a91.0.2026.04.27.02.18.44 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 27 Apr 2026 02:18:47 -0700 (PDT) Message-ID: Date: Mon, 27 Apr 2026 14:48:42 +0530 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v1] serial: qcom-geni: Avoid probing debug console UART without console support To: Aniket Randive , gregkh@linuxfoundation.org, jirislaby@kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, anup.kulkarni@oss.qualcomm.com, dmitry.baryshkov@oss.qualcomm.com, viken.dadhaniya@oss.qualcomm.com References: <20260413072501.263871-1-aniket.randive@oss.qualcomm.com> Content-Language: en-US From: Praveen Talari In-Reply-To: <20260413072501.263871-1-aniket.randive@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=aqCCzyZV c=1 sm=1 tr=0 ts=69ef29f9 cx=c_pps a=0uOsjrqzRL749jD1oC5vDA==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=IkcTkHD0fZMA:10 a=A5OVakUREuEA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=3WHJM1ZQz_JShphwDgj5:22 a=EUspDBNiAAAA:8 a=8N2UbNoKPs7AJDuX-gEA:9 a=QEXdDO2ut3YA:10 a=mQ_c8vxmzFEMiUWkPHU9:22 X-Proofpoint-GUID: 5FFt-u-DBaX1D4Xz2KTHRfQpgGgc768L X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDI3MDA5OCBTYWx0ZWRfXykOK2TrdWEGD pdEJXkTya2pty3yWLmpB/k51xw37yxTTcV+J/w71aLwOyscnynZ/RZg0kYxiSnAuv98DF7M2vVs UJmRk7RsybCv1j2+DCYgpKh1UDl+jrWnLI/ENNDXUr4Jy7lKMxgf9zAHoT3n1EGBnilru3CHSjj sD5PXka9ZlI7IraJ06vNNcT4RhYlMh8tl6Kk7TFC1wPS3HhVylaIdInm+tEUtaMe8mdAHt8oEnq zyWnAA7TQIA6UDRgJypvmUYoE9aE2PYCtKZu71G9MLzFeOw2Jj6Vd0BPCL1/nC4s5BzUnC0Iecd I3bY8JgTE3YAm2ktHAUQ1xZmHmOJODfpITUdYbyZkvKuTiddwUotPt/16E5ed4FPF60/tufJizy KvTAk4OXA8k71cFt6Lt1Wxw5X+RYSumhRWm0JD9u2UnewCPqH/XrPbpCfw7Nc/AI5f5YKeMPmA3 DlQbmj7lDr3PuXkK9cA== X-Proofpoint-ORIG-GUID: 5FFt-u-DBaX1D4Xz2KTHRfQpgGgc768L 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=2026-04-27_02,2026-04-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 impostorscore=0 phishscore=0 spamscore=0 adultscore=0 suspectscore=0 malwarescore=0 bulkscore=0 clxscore=1015 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604200000 definitions=main-2604270098 On 13-04-2026 12:55, Aniket Randive wrote: > When CONFIG_SERIAL_QCOM_GENI_CONSOLE is disabled, the driver still > advertises the debug UART compatible strings ("qcom,geni-debug-uart" > and "qcom,sa8255p-geni-debug-uart") in its of_match table. This lets the > driver match and probe console UART DT nodes even though console > support is not built. As a result, the console port is never registered > with the UART core and uart_add_one_port() fails with -EINVAL. > > Fix this by only including the debug UART compatible entries in the > match table when CONFIG_SERIAL_QCOM_GENI_CONSOLE is enabled, preventing > the driver from probing console UART nodes when console support is > absent. > > Signed-off-by: Aniket Randive > --- > drivers/tty/serial/qcom_geni_serial.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c > index 9854bb2406e3..b756e0c07c16 100644 > --- a/drivers/tty/serial/qcom_geni_serial.c > +++ b/drivers/tty/serial/qcom_geni_serial.c > @@ -2039,6 +2039,7 @@ static const struct dev_pm_ops qcom_geni_serial_pm_ops = { > }; > > static const struct of_device_id qcom_geni_serial_match_table[] = { > +#if IS_ENABLED(CONFIG_SERIAL_QCOM_GENI_CONSOLE) > { > .compatible = "qcom,geni-debug-uart", > .data = &qcom_geni_console_data, > @@ -2047,6 +2048,7 @@ static const struct of_device_id qcom_geni_serial_match_table[] = { > .compatible = "qcom,sa8255p-geni-debug-uart", > .data = &sa8255p_qcom_geni_console_data, > }, > +#endif > { > .compatible = "qcom,geni-uart", > .data = &qcom_geni_uart_data, Reviewed-by: Praveen Talari Thanks, Praveen Talari