Skip to content

K
Kernel

openeuler / Kernel
1 年多 前同步成功

通知 8
Star 0
Fork 0
K
Kernel
切换分支/标签
  1. 12 6月, 2013 1 次提交
  3. 02 5月, 2013 1 次提交
  5. 17 4月, 2013 2 次提交
  7. 04 4月, 2013 2 次提交
  9. 13 2月, 2013 3 次提交
  11. 09 2月, 2013 1 次提交
  13. 06 2月, 2013 1 次提交
    • S
      of: Output devicetree alias names in uevent · ced4eec9
      由 Stepan Moskovchenko 提交于 
      In some situations, userspace may want to resolve a
device by function and logical number (ie, "serial0")
rather than by the base address or full device path. Being
able to resolve a device by alias frees userspace from the
burden of otherwise having to maintain a mapping between
device addresses and their logical assignments on each
platform when multiple instances of the same hardware block
are present in the system.

Although the uevent device attribute contains devicetree
compatible information and the full device path, the uevent
does not list the alises that may have been defined for the
device.
Signed-off-by: NStepan Moskovchenko <stepanm@codeaurora.org>
[grant.likely: Removed OF_ALIAS_N field; I don't think it's needed]
[grant.likely: Added #ifndef _LINUX_OF_PRIVATE_H wrapper]
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
      ced4eec9
  15. 28 1月, 2013 1 次提交
    • T
      OF: Fixup resursive locking code paths · 28d0e36b
      由 Thomas Gleixner 提交于 
      There is no real reason to use a rwlock for devtree_lock. It even
could be a mutex, but unfortunately it's locked from cpu hotplug
paths which can't schedule :(

So it needs to become a raw lock on rt as well.  The devtree_lock would
be the only user of a raw_rw_lock, so we are better off cleaning up the
recursive locking paths which allows us to convert devtree_lock to a
read_lock.

Here we do the standard thing of introducing __foo() as the "raw"
version of foo(), so that we can take better control of the locking.
The "raw" versions are not exported and are for internal use within
the file itself.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: NRob Herring <rob.herring@calxeda.com>
      28d0e36b
  17. 21 1月, 2013 1 次提交
  19. 19 12月, 2012 1 次提交
  21. 12 12月, 2012 1 次提交
  23. 30 11月, 2012 2 次提交
  25. 29 11月, 2012 1 次提交
  27. 21 11月, 2012 2 次提交
  29. 15 11月, 2012 3 次提交
  31. 01 10月, 2012 1 次提交
  33. 20 8月, 2012 1 次提交
  35. 11 7月, 2012 2 次提交
  37. 06 7月, 2012 3 次提交
  39. 16 6月, 2012 1 次提交
    • G
      devicetree: add helper inline for retrieving a node's full name · efd68e72
      由 Grant Likely 提交于 
      The pattern (np ? np->full_name : "<none>") is rather common in the
kernel, but can also make for quite long lines.  This patch adds a new
inline function, of_node_full_name() so that the test for a valid node
pointer doesn't need to be open coded at all call sites.
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
      efd68e72
  41. 15 6月, 2012 1 次提交
  43. 18 4月, 2012 1 次提交
    • S
      dt: add property iteration helpers · c541adc6
      由 Stephen Warren 提交于 
      This patch adds macros of_property_for_each_u32() and
of_property_for_each_string(), which iterate over an array of values
within a device-tree property. Usage is for example:

struct property *prop;
const __be32 *p;
u32 u;
of_property_for_each_u32(np, "propname", prop, p, u)
	printk("U32 value: %x\n", u);

struct property *prop;
const char *s;
of_property_for_each_string(np, "propname", prop, s)
	printk("String value: %s\n", s);

Based on work by Rob Herring <robherring2@gmail.com>

Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Acked-by: NRob Herring <rob.herring@calxeda.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
      c541adc6
  45. 22 2月, 2012 1 次提交
  47. 29 1月, 2012 1 次提交
  49. 28 12月, 2011 1 次提交
  51. 20 12月, 2011 1 次提交
  53. 13 12月, 2011 1 次提交
    • G
      of: create of_phandle_args to simplify return of phandle parsing data · 15c9a0ac
      由 Grant Likely 提交于 
      of_parse_phandle_with_args() needs to return quite a bit of data.  Rather
than making each datum a separate **out_ argument, this patch creates
struct of_phandle_args to contain all the returned data and reworks the
user of the function.  This patch also enables of_parse_phandle_with_args()
to return the device node pointer for the phandle node.

This patch also ends up being fairly major surgery to
of_parse_handle_with_args().  The existing structure didn't work well
when extending to use of_phandle_args, and I discovered bugs during testing.
I also took the opportunity to rename the function to be like the
existing of_parse_phandle().

v2: - moved declaration of of_phandle_args to fix compile on non-DT builds
    - fixed incorrect index in example usage
    - fixed incorrect return code handling for empty entries
Reviewed-by: NShawn Guo <shawn.guo@freescale.com>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
      15c9a0ac
  55. 05 10月, 2011 2 次提交