serial: 8250_pci: Fintek products S3 patch
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- v3 Latest1 patch 0 repliesNew
Changes in v3 from the cover letter
1. due to cleanup code patch is applied, this patch is following branch tty_testing fbf47635315ab308c9b58a1ea0906e711a9228de.
Patches in v3 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/1 | serial: 8250_pci: port failed after wakeup from S3drivers/ | +50 | 0 replies |
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Cover letter [PATCH V3 0/1] serial: 8250_pci: Fintek products S3 patch
The patch works for Fintek F81504/F81508/F81512 PCI to Serial Port IC. Serial port of this IC will failed after wakeup from S3(STR).
It's due to this PCI device's configuration space from 0x40 to 0x40 + max_port * 0x08 should be re-configured when the system wakeup from S3(STR). If had no re-configure after S3, It's will all zero. It's will make uart function disabled.
We move all initialization from pci_fintek_setup() to pci_fintek_init() and set it to pci_serial_quirks struct .init section. It's will re-init this device when system wakeup from pciserial_resume_ports().
V3 changelog
1. due to cleanup code patch is applied, this patch is following branch tty_testing fbf47635315ab308c9b58a1ea0906e711a9228de.
V2 changelog (old)
1. swap pci_fintek_setup() / pci_fintek_init() location in source code to make diff more readable
V1 changelog (old)
1. Initial version, including 2 patches, one is cleanup code, another is fix S3 bug.
Peter Hung (1):
serial: 8250_pci: port failed after wakeup from S3
drivers/tty/serial/8250/8250_pci.c | 114 ++++++++++++++++--------------------- 1 file changed, 50 insertions(+), 64 deletions(-)
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1.9.1