Hans de Goede 62a0ec9dc1 PNP: Do not disable devices on suspend when they cannot be re-enabled on resume ... On an Advantech MICA-071 tablet, with a builtin barcode scanner connected to ttyS0, the following message is shown on suspend: serial 00:02: disabled And after suspend/resume trying to use the barcode scanner / ttyS0 shows: serial 00:02: LSR safety check engaged! Indicating that the UARTs io-ports are no longer reachable. This is caused by __pnp_bus_suspend() calling pnp_stop_dev() on the "00:02" pnp device on suspend (this outputs the disabled message). The problem is that pnp_can_write() returns false for the "00:02" pnp device, so after disabling it (disabling its decoding of IO addresses) during suspend, it cannot be re-enabled. Add a pnp_can_write() check to the suspend path and only disable devices which can actually be re-enabled on resume. This fixes the Advantech MICA-071's ttyS0 no longer working after a suspend/resume. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>		2022-11-25 19:36:52 +01:00
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isapnp	proc: remove PDE_DATA() completely	2022-01-22 08:33:37 +02:00
pnpacpi	ACPI: resources: Add wake_capable parameter to acpi_dev_irq_flags	2022-10-04 15:41:12 +02:00
pnpbios	PNPBIOS: remove unused pnpid32_to_pnpid() declaration	2022-09-24 18:07:42 +02:00
base.h
card.c
core.c	PNP: fix name memory leak in pnp_alloc_dev()	2022-11-22 20:37:21 +01:00
driver.c	PNP: Do not disable devices on suspend when they cannot be re-enabled on resume	2022-11-25 19:36:52 +01:00
interface.c
Kconfig
Makefile
manager.c
quirks.c
resource.c	PCI: Remove pci_get_legacy_ide_irq() and asm-generic/pci.h	2022-07-22 17:23:45 -05:00
support.c
system.c