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  1. 31 10月, 2015 2 次提交
  3. 28 10月, 2015 2 次提交
    • R
      of: add config option to enable building of all dtbs · 1b7c501b
      由 Rob Herring 提交于 
      Enable building all dtb files when CONFIG_OF_ALL_DTBS is enabled. The dtbs
are not really dependent on a platform being enabled or any other kernel
config, so for testing coverage it is convenient to build all of the dtbs.

In order to only build dtbs, this option can be used by creating an
allno.config file containing:
CONFIG_COMPILE_TEST=y
CONFIG_OF=y
CONFIG_OF_ALL_DTBS=y

And then running:
make KCONFIG_ALLCONFIG=1 allnoconfig
make dtbs

While building the dtbs themselves don't need a cross compiler, the
scripts dependency does need one. This can be hacked around by
commenting out "subdir-y += mod" in scripts/Makefile.
Signed-off-by: NRob Herring <robh@kernel.org>
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Grant Likely <grant.likely@linaro.org>
      1b7c501b
    • M
      of/fdt: fix error checking for earlycon address · 3f5ceec9
      由 Masahiro Yamada 提交于 
      fdt_translate_address() returns OF_BAD_ADDR on error.  It is defined as
a u64 value, so the variable "addr" should be defined as u64 as well.

Fixes: fb11ffe7 ("of/fdt: add FDT serial scanning for earlycon")
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: NRob Herring <robh@kernel.org>
      3f5ceec9
  5. 22 10月, 2015 4 次提交
    • J
      of/overlay: add missing of_node_put · 001cf504
      由 Julia Lawall 提交于 
      for_each_child_of_node performs an of_node_get on each iteration, so
a break out of the loop requires an of_node_put.

A simplified version of the semantic patch that fixes this problem is as
follows (http://coccinelle.lip6.fr):

// <smpl>
@@
expression root,e;
local idexpression child;
@@

 for_each_child_of_node(root, child) {
   ... when != of_node_put(child)
       when != e = child
(
   return child;
|
+  of_node_put(child);
?  return ...;
)
   ...
 }
// </smpl>
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: NRob Herring <robh@kernel.org>
      001cf504
    • J
      of/platform: add missing of_node_put · 7fad948a
      由 Julia Lawall 提交于 
      for_each_child_of_node performs an of_node_get on each iteration, so
a break out of the loop requires an of_node_put.

A simplified version of the semantic patch that fixes this problem is as
follows (http://coccinelle.lip6.fr):

// <smpl>
@@
local idexpression n;
expression root,e;
@@

 for_each_child_of_node(root,n) {
   ...
(
   of_node_put(n);
|
   e = n
|
+  of_node_put(n);
?  break;
)
   ...
 }
... when != n
// </smpl>
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: NRob Herring <robh@kernel.org>
      7fad948a
    • J
      of/irq: add missing of_node_put · 8363ccb9
      由 Julia Lawall 提交于 
      for_each_matching_node performs an of_node_get on each iteration, so
a break out of the loop requires an of_node_put.

A simplified version of the semantic patch that fixes this problem is as
follows (http://coccinelle.lip6.fr):

// <smpl>
@@
local idexpression n;
expression e;
identifier l;
@@

 for_each_matching_node(n,...) {
   ...
(
   of_node_put(n);
|
   e = n
|
+  of_node_put(n);
?  goto l;
)
   ...
 }
...
l: ... when != n
// </smpl>

Besides the issue found by the semantic patch, this code also stores the
device_node value in a list, which requires an of_node_get, and then cleans
up the list on exit from the function, which requires an of_node_put.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: NRob Herring <robh@kernel.org>
      8363ccb9
    • J
      of/unittest: add missing of_node_put · 855ff287
      由 Julia Lawall 提交于 
      for_each_child_of_node performs an of_node_get on each iteration, so
a break out of the loop requires an of_node_put.

A simplified version of the semantic patch that fixes this problem is as
follows (http://coccinelle.lip6.fr):

// <smpl>
@@
expression root,e;
local idexpression child;
@@

 for_each_child_of_node(root, child) {
   ... when != of_node_put(child)
       when != e = child
(
   return child;
|
+  of_node_put(child);
?  return ...;
)
   ...
 }
// </smpl>

Combine the puts into code at the end of the function, for conciseness.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: NRob Herring <robh@kernel.org>
      855ff287
  7. 14 10月, 2015 4 次提交
    • J
      of/irq: make of_irq_find_parent static · 52493d44
      由 Jonas Gorski 提交于 
      of_irq_find_parent has no users outside of of_irq.c, so it does not make
sense to expose it in of_irq.h. Therefore remove the prototype and dummy
implmeentation and make the function static instead.
Signed-off-by: NJonas Gorski <jogo@openwrt.org>
Signed-off-by: NRob Herring <robh@kernel.org>
      52493d44
    • S
      of/fdt: fix aliases with baudrate in earlycon · 6296ad9e
      由 Stefan Agner 提交于 
      Many boards use an alias in the stdout-path specification along
with console options after a colon (e.g. serial0:115200n8). When
using earlycon, this specification currently does not work. While
fdt_path_offset supports alias resolution, it does not remove the
console options by itself. Use the fdt_path_offset_namelen variant
and provide the length of the alias to enable aliases with console
options in the stdout-path.
Signed-off-by: NStefan Agner <stefan@agner.ch>
Signed-off-by: NRob Herring <robh@kernel.org>
      6296ad9e
    • P
      PCI: of: Ignore resources with failed translation · f134f251
      由 Pavel Fedin 提交于 
      This patch allows PCI host controller to function even if part of resources
is unusable for some reason. An example is non-LPAE kernel on a machine
which has some 64-bit resources. Unusable resources will be just skipped
instead of a complete failure.
Signed-off-by: NPavel Fedin <p.fedin@samsung.com>
Signed-off-by: NRob Herring <robh@kernel.org>
      f134f251
    • P
      PCI: of: Add 64-bit address recognition without LPAE support · 4af97106
      由 Pavel Fedin 提交于 
      If non-LPAE kernel is booted up on a machine with 64-bit PCI resources,
PCI controller probe fails with:

PCI host bridge /pcie@10000000 ranges:
   IO 0x3eff0000..0x3effffff -> 0x00000000
  MEM 0x10000000..0x3efeffff -> 0x10000000
  MEM 0x8000000000..0xffffffffff -> 0x8000000000
pci-host-generic 3f000000.pcie: resource collision: [mem 0x00000000-0xffffffff] conflicts with /pl011@9000000 [mem 0x09000000-0x09000fff]
pci-host-generic: probe of 3f000000.pcie failed with error -16

This happens because res->start assignment in of_pci_range_to_resource()
truncates the upper part of the address, because res->start is of
phys_addr_t type, which is 32-bit on non-LPAE kernels.

This patch adds explicit recognition of 64-bit resources, preventing from
potential problems when e. g. 0x8000001234 would be converted to
0x00001234.
Signed-off-by: NPavel Fedin <p.fedin@samsung.com>
Signed-off-by: NRob Herring <robh@kernel.org>
      4af97106
  9. 25 9月, 2015 1 次提交
    • R
      of_mdio: fix MDIO phy device refcounting · f018ae7a
      由 Russell King 提交于 
      bus_find_device() is defined as:

 * This is similar to the bus_for_each_dev() function above, but it
 * returns a reference to a device that is 'found' for later use, as
 * determined by the @match callback.

and it does indeed return a reference-counted pointer to the device:

        while ((dev = next_device(&i)))
                if (match(dev, data) && get_device(dev))
                                        ^^^^^^^^^^^^^^^
                        break;
        klist_iter_exit(&i);
        return dev;

What that means is that when we're done with the struct device, we must
drop that reference.  Neither of_phy_connect() nor of_phy_attach() did
this when phy_connect_direct() or phy_attach_direct() failed.

With our previous patch, phy_connect_direct() and phy_attach_direct()
take a new refcount on the phy device when successful, so we can drop
our local reference immediatley after these functions, whether or not
they succeeded.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      f018ae7a
  11. 18 9月, 2015 3 次提交
  13. 01 9月, 2015 1 次提交
  15. 27 8月, 2015 1 次提交
  17. 26 8月, 2015 2 次提交
  19. 24 8月, 2015 1 次提交
  21. 30 7月, 2015 1 次提交
  23. 27 7月, 2015 2 次提交
  25. 22 7月, 2015 1 次提交
    • S
      of_mdio: add new DT property 'managed' to specify the PHY management type · 4cba5c21
      由 Stas Sergeev 提交于 
      Currently the PHY management type is selected by the MAC driver arbitrary.
The decision is based on the presence of the "fixed-link" node and on a
will of the driver's authors.
This caused a regression recently, when mvneta driver suddenly started
to use the in-band status for auto-negotiation on fixed links.
It appears the auto-negotiation may not work when expected by the MAC driver.
Sebastien Rannou explains:
<< Yes, I confirm that my HW does not generate an in-band status. AFAIK, it's
a PHY that aggregates 4xSGMIIs to 1xQSGMII ; the MAC side of the PHY (with
inband status) is connected to the switch through QSGMII, and in this context
we are on the media side of the PHY. >>
https://lkml.org/lkml/2015/7/10/206

This patch introduces the new string property 'managed' that allows
the user to set the management type explicitly.
The supported values are:
"auto" - default. Uses either MDIO or nothing, depending on the presence
of the fixed-link node
"in-band-status" - use in-band status
Signed-off-by: NStas Sergeev <stsp@users.sourceforge.net>

CC: Rob Herring <robh+dt@kernel.org>
CC: Pawel Moll <pawel.moll@arm.com>
CC: Mark Rutland <mark.rutland@arm.com>
CC: Ian Campbell <ijc+devicetree@hellion.org.uk>
CC: Kumar Gala <galak@codeaurora.org>
CC: Florian Fainelli <f.fainelli@gmail.com>
CC: Grant Likely <grant.likely@linaro.org>
CC: devicetree@vger.kernel.org
CC: linux-kernel@vger.kernel.org
CC: netdev@vger.kernel.org
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      4cba5c21
  27. 01 7月, 2015 1 次提交
  29. 30 6月, 2015 1 次提交
  31. 23 6月, 2015 2 次提交
  33. 22 6月, 2015 1 次提交
  35. 19 6月, 2015 1 次提交
    • R
      dt/fdt: add empty versions of early_init_dt_*_memory_arch · aefc7ec2
      由 Rob Herring 提交于 
      With the addition of commit 0166dc11 (of: make CONFIG_OF user
selectable), architectures which don't enable memblock and don't
have their own early_init_dt_*_memory_arch implementations will break
when CONFIG_OF is enabled.

Really, we should have better separation of CONFIG_OF and
CONFIG_OF_EARLY_FLATTREE, but doing that will require quite a bit of
shuffling of architecture code. That will have to wait for another day.
Signed-off-by: NRob Herring <robh@kernel.org>
Cc: Grant Likely <grant.likely@linaro.org>
      aefc7ec2
  37. 10 6月, 2015 1 次提交
  39. 05 6月, 2015 4 次提交
  41. 04 6月, 2015 2 次提交
  43. 02 6月, 2015 1 次提交
  45. 01 6月, 2015 1 次提交