Public bug reported: Due to a known silicon limitation, the following sequence is needed while initialing the PCIE device on a certain devices with ASMedia chipset involved:
1. 'hot reset' assert 2. 2nd PCIe reset' assert 3. Asmedia 'hot reset' deassert 4. PT21 GPIO13 2nd PCIe reset' deassert. In certain caes, the WIFI link training failed while system resumes from suspend. This can be reproduced with suspend/resume stress test. $ checkbox-cli run com.canonical.certification::stress- suspend-30-cycles-with-reboots-automated The proposed fixes are: * https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/commit/?id=17509e53b97baaefeb287b98d3358da8a6e1c199 - This FW include this LP ticket issue fix * https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/commit/?id=324cc56975d7b5a375259a49667c24f2f5a4c8fe - The FW is to support new China regulatory support. ** Affects: hwe-next Importance: Undecided Status: New ** Affects: linux-firmware (Ubuntu) Importance: Undecided Status: New ** Tags: oem-priority originate-from-2046433 somerville ** Description changed: Due to a known silicon limitation, the following sequence is needed while initialing the PCIE device on a certain devices with ASMedia chipset involved: 1. 'hot reset' assert 2. 2nd PCIe reset' assert 3. Asmedia 'hot reset' deassert 4. PT21 GPIO13 2nd PCIe reset' deassert. In certain caes, the WIFI link training failed while system resumes from suspend. This can be reproduced with suspend/resume stress test. $ checkbox-cli run com.canonical.certification::stress- suspend-30-cycles-with-reboots-automated + + The proposed fixes are: + + * https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/commit/?id=17509e53b97baaefeb287b98d3358da8a6e1c199 + - This FW include this LP ticket issue fix + * https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/commit/?id=324cc56975d7b5a375259a49667c24f2f5a4c8fe + - The FW is to support new China regulatory support. ** Tags added: oem-priority originate-from-2046433 somerville -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-firmware in Ubuntu. https://bugs.launchpad.net/bugs/2048977 Title: WCN6856 Wi-FI Unavailable and no function during suspend stress Status in HWE Next: New Status in linux-firmware package in Ubuntu: New Bug description: Due to a known silicon limitation, the following sequence is needed while initialing the PCIE device on a certain devices with ASMedia chipset involved: 1. 'hot reset' assert 2. 2nd PCIe reset' assert 3. Asmedia 'hot reset' deassert 4. PT21 GPIO13 2nd PCIe reset' deassert. In certain caes, the WIFI link training failed while system resumes from suspend. This can be reproduced with suspend/resume stress test. $ checkbox-cli run com.canonical.certification::stress- suspend-30-cycles-with-reboots-automated The proposed fixes are: * https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/commit/?id=17509e53b97baaefeb287b98d3358da8a6e1c199 - This FW include this LP ticket issue fix * https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/commit/?id=324cc56975d7b5a375259a49667c24f2f5a4c8fe - The FW is to support new China regulatory support. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/2048977/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
