linux-stable.git/drivers/firmware/google/coreboot_table.h, branch linux-5.4.y

Merge 5.2-rc4 into char-misc-next

2019-06-09T07:11:21+00:00

We want the char/misc driver fixes in here as well.

Signed-off-by: Greg Kroah-Hartman

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 287

2019-06-05T15:36:37+00:00

Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license v2 0 as
  published by the free software foundation this program is
  distributed in the hope that it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 23 file(s).

Signed-off-by: Thomas Gleixner 
Reviewed-by: Alexios Zavras 
Reviewed-by: Allison Randal 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141901.115786599@linutronix.de
Signed-off-by: Greg Kroah-Hartman

firmware: google: coreboot: Drop unnecessary headers

2019-05-24T18:55:04+00:00

These headers aren't used by the files they're included in, so drop
them. The memconsole file uses memremap() though, so include io.h there
so that the include is explicit.

Cc: Wei-Ning Huang 
Cc: Julius Werner 
Cc: Brian Norris 
Cc: Samuel Holland 
Cc: Guenter Roeck 
Signed-off-by: Stephen Boyd 
Reviewed-by: Julius Werner 
Reviewed-by: Samuel Holland 
Signed-off-by: Greg Kroah-Hartman

firmware: google: Add a module_coreboot_driver() macro and use it

2019-05-24T18:55:04+00:00

Remove some boiler plate code we have in three drivers with a single
line each time. This also gets us a free assignment of the driver .owner
field, making these drivers work better as modules.

Cc: Wei-Ning Huang 
Cc: Julius Werner 
Cc: Brian Norris 
Cc: Samuel Holland 
Cc: Guenter Roeck 
Signed-off-by: Stephen Boyd 
Reviewed-by: Julius Werner 
Reviewed-by: Samuel Holland 
Signed-off-by: Greg Kroah-Hartman

firmware: coreboot: Collapse platform drivers into bus core

2018-09-14T13:37:23+00:00

The DT based and ACPI based platform drivers here do the same thing; map
some memory and hand it over to the coreboot bus to populate devices.
The only major difference is that the DT based driver doesn't map the
coreboot table header to figure out how large of a region to map for the
whole coreboot table and it uses of_iomap() instead of ioremap_cache().
A cached or non-cached mapping shouldn't matter here and mapping some
smaller region first before mapping the whole table is just more work
but should be OK. In the end, we can remove two files and combine the
code all in one place making it easier to reason about things.

We leave the old Kconfigs in place for a little while longer but make
them hidden and select the previously hidden config option. This way
users can upgrade without having to know to reselect this config in the
future. Later on we can remove the old hidden configs.

Cc: Wei-Ning Huang 
Cc: Julius Werner 
Cc: Brian Norris 
Cc: Samuel Holland 
Signed-off-by: Stephen Boyd 
Reviewed-by: Julius Werner 
Signed-off-by: Greg Kroah-Hartman

firmware: coreboot: Add coreboot framebuffer driver

2018-04-23T11:37:19+00:00

Register a simplefb framebuffer when the coreboot table contains a
framebuffer entry.

Signed-off-by: Samuel Holland 
Signed-off-by: Greg Kroah-Hartman

firmware: coreboot: Remove unused coreboot_table_find

2018-04-23T11:37:19+00:00

Now that all users of the coreboot_table_find function have been updated
to hang off the coreboot table bus instead, remove it.

Signed-off-by: Samuel Holland 
Signed-off-by: Greg Kroah-Hartman

firmware: coreboot: Expose the coreboot table as a bus

2018-04-23T11:37:19+00:00

This simplifies creating device drivers for hardware or information
described in the coreboot table. It also avoids needing to search
through the table every time a driver is loaded.

Signed-off-by: Samuel Holland 
Signed-off-by: Greg Kroah-Hartman

firmware: google memconsole: Add coreboot support

2017-04-08T16:05:36+00:00

Coreboot (http://www.coreboot.org) allows to save the firmware console
output in a memory buffer. With this patch, the address of this memory
buffer is obtained from coreboot tables on x86 chromebook devices
declaring an ACPI device with name matching GOOGCB00 or BOOT0000.

If the memconsole-coreboot driver is able to find the coreboot table,
the memconsole driver sets the cbmem_console address and initializes the
memconsole sysfs entries.

The coreboot_table-acpi driver is responsible for setting the address of
the coreboot table header when probed. If this address is not yet set
when memconsole-coreboot is probed, then the probe is deferred by
returning -EPROBE_DEFER.

This patch is a rework/split/merge of patches from the chromeos v4.4
kernel tree originally authored by:
 Vadim Bendebury 
 Wei-Ning Huang 
 Yuji Sasaki 
 Duncan Laurie 
 Julius Werner 
 Brian Norris 

Signed-off-by: Thierry Escande 
Signed-off-by: Greg Kroah-Hartman