From cc6a0e315a68e5db85bea347b0c5b0fe4a9a5904 Mon Sep 17 00:00:00 2001 From: Mika Westerberg Date: Thu, 19 Apr 2018 13:08:37 +0300 Subject: [PATCH] ACPI / scan: Initialize watchdog before PNP At least on one Dell system the PNP motherboard resources device includes resources used by WDAT table. Since PNP gets initialized before WDAT it results following error and no watchdog: platform wdat_wdt: failed to claim resource 3: [io 0x046a-0x046c] ACPI: watchdog: Device creation failed: -16 Now, the PNP system driver is already accustomed with the situation that it cannot reserve all those motherboard resources because drivers using those might have reserved them already. In addition putting WDAT table resources under motherboard resources device makes sense in general. Fix this by initializing WDAT right before PNP. This allows WDAT to reserve all its resources and still keeps PNP system driver happy. Reported-by: Shubhrata.Priyadarsh@dell.com Reported-by: Takashi Iwai Signed-off-by: Mika Westerberg Acked-by: Guenter Roeck Signed-off-by: Rafael J. Wysocki --- drivers/acpi/scan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index cc234e6a6297..970dd87d347c 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -2166,10 +2166,10 @@ int __init acpi_scan_init(void) acpi_cmos_rtc_init(); acpi_container_init(); acpi_memory_hotplug_init(); + acpi_watchdog_init(); acpi_pnp_init(); acpi_int340x_thermal_init(); acpi_amba_init(); - acpi_watchdog_init(); acpi_init_lpit(); acpi_scan_add_handler(&generic_device_handler);