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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTA3MDA4OSBTYWx0ZWRfX5+TmHl9iakix H23jiKdXMuBWxiUqr+HAqKN6tgdFs2T/7MR6Wp2hZ9S1FlyIjLSNHtcn1a8TVdhLppbhgc/+rsO NE6Qcn5cYvR9wawN347aPF6+bpqZjgBhhuO1rCEdzF2lWAhBodwkeyOmZEX/DKDnkE4aRJxWdZ8 YQNgN4HDkxEieYjmEQxK3YGzeO9iOH/uNbnxNurh5EeFyuQjwLUqe42VLySCcPGEL1q749r8haw 9pLSSYZnIk91pJnPkMgVrMi39zFpRiRBXOF4uzUbsKJunUA5jYBmvpT6O8J9lrkXLRoDnAwJ8Cx Up+sm3vuZTxFvk4/7ZbkOC6R9pk+8eVQhbhcyAInISDVBJqDgPm+yBA42LAxAq7sewM/TJJtYIt Q8kmOYrfJbqskL2DAsDBt6ItyXUX/gOd+693Fwa8FkNOSyI8W+M5kAZNs7QXaUc/WvzgNPStIMo 1mEhOeorJgBcznNebSA== X-Authority-Analysis: v=2.4 cv=INwPywvG c=1 sm=1 tr=0 ts=695e3c55 cx=c_pps a=Oh5Dbbf/trHjhBongsHeRQ==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=IkcTkHD0fZMA:10 a=vUbySO9Y5rIA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=EUspDBNiAAAA:8 a=fCEnOBaRacVBP-F0Y58A:9 a=QEXdDO2ut3YA:10 a=_Vgx9l1VpLgwpw_dHYaR:22 X-Proofpoint-ORIG-GUID: 9LqyBWJQRE53GuylXij0L1pIh3lSmkPv X-Proofpoint-GUID: 9LqyBWJQRE53GuylXij0L1pIh3lSmkPv X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2026-01-07_01,2026-01-06_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 spamscore=0 impostorscore=0 lowpriorityscore=0 malwarescore=0 priorityscore=1501 adultscore=0 clxscore=1015 suspectscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2512120000 definitions=main-2601070089 Hi Konrad, On 1/7/2026 4:16 PM, Konrad Dybcio wrote: > On 1/7/26 10:24 AM, Praveen Talari wrote: >> Hi >> >> On 1/7/2026 12:52 PM, Dmitry Baryshkov wrote: >>> On Wed, 7 Jan 2026 at 09:06, Praveen Talari >>> wrote: >>>> >>>> Hi Dmistry, >>>> >>>> On 1/7/2026 12:24 PM, Dmitry Baryshkov wrote: >>>>> On Wed, 7 Jan 2026 at 08:48, Praveen Talari >>>>> wrote: >>>>>> >>>>>> A regression in linux-next causes Bluetooth functionality to fail during >>>>> >>>>> linux-next is an ephemeral thing. Please reference the exact commit. >>>>> >>>>>> bootup on the RB2 platform, preventing proper BT initialization. However, >>>>>> BT works correctly after bootup completes. >>>>>> >>>>>> The issue occurs when runtime PM is enabled and uart_add_one_port() is >>>>>> called before wakeup IRQ setup. The uart_add_one_port() call activates the >>>>>> device through runtime PM, which configures GPIOs to their default state. >>>>>> When wakeup IRQ registration happens afterward, it conflicts with these >>>>>> GPIO settings, causing state corruption that breaks Bluetooth >>>>>> functionality. >>>>> >>>>> How does it "conflict with GPIO settings", what is "state corruption"? >>>> >>>> I mean the issue occurs because the GPIO state is being altered during >>>> the wakeup source registration process.. >>> >>> Altered how? >> >> During the runtime resume of devices, GPIOs are configured to QUP mode. However, when registering the wakeup IRQ using dev_pm_set_dedicated_wake_irq(), these GPIOs are reset back to FUNC mode, which impacts the RX GPIO and leads to Bluetooth failures > > "QUP mode" and "FUNC mode" are tough to swallow even for an insider.. How > about: > > "qup_x" and "gpio" pinmux functions Yes, you are right. I am talking about "qup_x" and "gpio" pinmux functions Thanks, Praveen Talari > > ? > > Konrad