mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2026-09-22 09:34:56 +02:00
Manivannan Sadhasivam
d0833f2d44
[ Upstream commit55f3aa0695] ath12k_pci_soc_global_reset() tries to reset the device by writing to the PCIE_SOC_GLOBAL_RESET register. But it doesn't do a read-back to ensure that the write gets flushed to the device before the delay. This may lead to the delay on the host to be insufficient, if the posted write doesn't reach the device before the delay. So add a read-back after writing to the PCIE_SOC_GLOBAL_RESET register and before the delay. Compile tested only. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.6-01243-QCAHKSWPL_SILICONZ-1 Fixes:d889913205("wifi: ath12k: driver for Qualcomm Wi-Fi 7 devices") Reported-by: Alex Williamson <alex@shazbot.org> Closes: https://lore.kernel.org/linux-pci/20260622160822.09350246@shazbot.org Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com> Reviewed-by: Baochen Qiang <baochen.qiang@oss.qualcomm.com> Reviewed-by: Raj Kumar Bhagat <raj.bhagat@oss.qualcomm.com> Tested-by: Raj Kumar Bhagat <raj.bhagat@oss.qualcomm.com> Link: https://patch.msgid.link/20260623141649.41087-2-manivannan.sadhasivam@oss.qualcomm.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.