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linux/drivers/acpi
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Hans de Goede e94254219f ACPI / LPSS: Add missing prv_offset setting for byt/cht PWM devices 
commit fdcb613d49 upstream.

The LPSS PWM device on on Bay Trail and Cherry Trail devices has a set
of private registers at offset 0x800, the current lpss_device_desc for
them already sets the LPSS_SAVE_CTX flag to have these saved/restored
over device-suspend, but the current lpss_device_desc was not setting
the prv_offset field, leading to the regular device registers getting
saved/restored instead.

This is causing the PWM controller to no longer work, resulting in a black
screen,  after a suspend/resume on systems where the firmware clears the
APB clock and reset bits at offset 0x804.

This commit fixes this by properly setting prv_offset to 0x800 for
the PWM devices.

Fixes: e1c7481797 ("ACPI / LPSS: Add Intel BayTrail ACPI mode PWM")
Fixes: 1bfbd8eb8a ("ACPI / LPSS: Add ACPI IDs for Intel Braswell")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Rafael J . Wysocki <rjw@rjwysocki.net>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
[bwh: Backported to 3.16:
 - Drop changes for Braswell
 - Adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
History 2018-11-20 18:05:11 +00:00
..
acpica ACPICA: Dispatcher: Update thread ID for recursive method calls 2016-06-15 21:29:30 +01:00
apei ACPI: APEI / ERST: Fix missing error handling in erst_reader() 2018-03-03 15:52:01 +00:00
ac.c Revert "ACPI / AC: Remove AC's proc directory." 2014-07-07 01:13:46 +02:00
acpi_cmos_rtc.c ACPI / RTC: Fix CMOS RTC opregion handler accesses to wrong addresses 2014-10-05 13:40:59 -07:00
acpi_extlog.c ACPI: Clean up acpi_os_map/unmap_memory() to eliminate __iomem. 2014-05-27 18:13:08 +02:00
acpi_ipmi.c ACPI / IPMI: Cleanup coding styles 2013-09-30 19:46:13 +02:00
acpi_lpss.c ACPI / LPSS: Add missing prv_offset setting for byt/cht PWM devices 2018-11-20 18:05:11 +00:00
acpi_memhotplug.c ACPI / scan: always register memory hotplug scan handler 2014-05-30 16:04:36 +02:00
acpi_pad.c ACPI / PAD: Use time_before() for time comparison 2014-05-27 01:38:23 +02:00
acpi_platform.c ACPI: Do not create a platform_device for IOAPIC/IOxAPIC 2017-07-18 18:40:24 +01:00
acpi_pnp.c serial: 8250: bind to ALi Fast Infrared Controller (ALI5123) 2015-09-28 10:21:41 +01:00
acpi_processor.c ACPI / processor: Avoid reserving IO regions too early 2016-08-22 22:38:07 +01:00
battery.c Revert "ACPI / battery: fix wrong value of capacity_now reported when fully charged" 2014-10-05 13:40:59 -07:00
battery.h ACPI / battery: move some ACPI_BATTERY_* definitions to header 2014-03-19 01:57:46 +01:00
bgrt.c acpi: bgrt: fix build error due to attribute change 2013-08-22 08:34:39 -07:00
blacklist.c ACPI / blacklist: Add dmi_enable_osi_linux quirk for Asus EEE PC 1015PX 2014-05-08 00:35:50 +02:00
bus.c ACPI / init: Switch over platform to the ACPI mode later 2015-07-15 10:01:26 +01:00
button.c ACPI / button: Add ACPI Button event via netlink routine 2014-03-19 02:06:15 +01:00
cm_sbs.c ACPI: Revert "ACPI: Remove CONFIG_ACPI_PROCFS_POWER and cm_sbsc.c" 2014-05-06 01:52:09 +02:00
container.c ACPI / hotplug: Generate online uevents for ACPI containers 2014-10-05 13:41:02 -07:00
custom_method.c ACPI: Clean up inclusions of ACPI header files 2013-12-07 01:03:14 +01:00
debugfs.c ACPI: Clean up inclusions of ACPI header files 2013-12-07 01:03:14 +01:00
device_pm.c ACPI / PM: Add missing pm_generic_complete() invocation 2015-07-15 10:00:25 +01:00
dock.c ACPI / dock: Drop dock_device_ids[] table 2014-04-07 14:11:35 +02:00
ec.c Revert "ACPI / EC: Add support to disallow QR_EC to be issued before completing previous QR_EC" 2017-10-12 15:28:15 +01:00
ec_sys.c ACPI / EC: Mark the function acpi_ec_add_debugfs() as static in ec_sys.c 2014-01-06 00:13:22 +01:00
event.c ACPI: Clean up inclusions of ACPI header files 2013-12-07 01:03:14 +01:00
fan.c ACPI / fan: do nothing in suspend and poweroff callback 2014-02-20 21:42:09 +01:00
glue.c ACPI / scan: Add bind/unbind callbacks to struct acpi_scan_handler 2014-02-11 00:35:46 +01:00
hed.c ACPI: Clean up inclusions of ACPI header files 2013-12-07 01:03:14 +01:00
internal.h ACPI / scan: always register ACPI LPSS scan handler 2014-05-30 16:04:36 +02:00
Kconfig ACPI / proc: Do not say when /proc interfaces will be deleted in Kconfig 2014-05-10 13:51:36 +02:00
Makefile ACPI: Fix incompatibility with mcount-based function graph tracing 2017-07-18 18:40:25 +01:00
numa.c ACPI / numa: Use __weak, not the gcc-specific version 2014-02-03 10:39:43 -07:00
nvs.c ACPI: Clean up acpi_os_map/unmap_memory() to eliminate __iomem. 2014-05-27 18:13:08 +02:00
osl.c ACPI: Use correct IRQ when uninstalling ACPI interrupt handler 2015-12-13 17:48:55 +00:00
pci_irq.c ACPI / PCI: Do not call ISA-specific code if ISA is not supported 2014-02-20 21:37:42 +01:00
pci_link.c ACPI: Remove duplicate definitions of PREFIX 2014-03-19 02:01:57 +01:00
pci_root.c Merge branches 'acpi-cleanup', 'acpi-thermal', 'acpi-pci', 'acpi-lpss' and 'acpi-button' 2014-03-20 13:20:47 +01:00
pci_slot.c ACPI / PCI: Include appropriate header file in pci_slot.c 2014-01-06 00:13:22 +01:00
power.c ACPI / power: Avoid maybe-uninitialized warning 2017-07-18 18:40:37 +01:00
proc.c ACPI / proc: remove unneeded NULL check 2014-02-05 01:06:21 +01:00
processor_core.c Merge branches 'acpi-processor' and 'pnp' 2014-04-01 22:09:50 +02:00
processor_driver.c ACPI / processor: Fix STARTING/DYING action in acpi_cpu_soft_notify() 2014-05-16 16:36:03 +02:00
processor_idle.c cpuidle: ACPI: do not overwrite name and description of C0 2015-04-27 16:16:35 +01:00
processor_perflib.c ACPI / processor: use acpi_evaluate_ost() to replace open-coded version 2014-02-21 00:27:47 +01:00
processor_thermal.c ACPI: correct minor typos 2013-12-07 01:38:45 +01:00
processor_throttling.c ACPI / processor: Avoid reserving IO regions too early 2016-08-22 22:38:07 +01:00
reboot.c Revert "ACPI: ignore FADT reset-reg-sup flag" 2012-04-20 11:19:35 -07:00
resource.c ACPI / PNP: Reserve ACPI resources at the fs_initcall_sync stage 2015-07-15 10:01:34 +01:00
sbs.c ACPI / battery: move some ACPI_BATTERY_* definitions to header 2014-03-19 01:57:46 +01:00
sbshc.c ACPI: sbshc: remove raw pointer from printk() message 2018-03-03 15:52:34 +00:00
sbshc.h ACPI: SBS: Ignore alarms coming from unknown devices 2007-12-14 15:14:06 -05:00
scan.c ACPI / scan: Annotate physical_node_lock in acpi_scan_is_offline() 2015-05-06 10:36:22 +01:00
sleep.c PM / sleep: trace events for suspend/resume 2014-06-07 00:18:07 +02:00
sleep.h ACPI: Drop power resources driver 2013-01-17 14:11:06 +01:00
sysfs.c ACPI / sysfs: fix error code in get_status() 2016-08-22 22:37:54 +01:00
tables.c ACPI: use kstrto*() instead of simple_strto*() 2014-06-17 14:01:56 +02:00
thermal.c Merge back earlier ACPI thermal material. 2014-05-29 13:28:14 +02:00
utils.c ACPI: add dynamic_debug support 2014-05-26 14:38:57 +02:00
video.c ACPI / video: Load the module even if ACPI is disabled 2015-03-18 15:07:02 +00:00
video_detect.c ACPI / video: Add Dell Inspiron 5737 to the blacklist 2014-07-07 23:38:10 +02:00
wakeup.c ACPI: Clean up inclusions of ACPI header files 2013-12-07 01:03:14 +01:00