Skip to content

K
kernel_linux

OpenHarmony / kernel_linux
上一次同步 接近 4 年

通知 14
Star 8
Fork 2
K
kernel_linux
切换分支/标签
  1. 13 12月, 2008 2 次提交
  3. 13 11月, 2008 1 次提交
    • M
      genirq: __irq_set_trigger: change pr_warning to pr_debug · 3ff68a6a
      由 Mark Nelson 提交于 
      Commit 0c5d1eb7 (genirq: record trigger
type) caused powerpc platforms that had no set_type() function in their
struct irq_chip to spew out warnings about "No set_type function for
IRQ...". This warning isn't necessarily justified though because the
generic powerpc platform code calls set_irq_type() (which in turn calls
__irq_set_trigger) with information from the device tree to establish
the interrupt mappings, regardless of whether the PIC can actually set
a type.

A platform's irq_chip might not have a set_type function for a variety
of reasons, for example: the platform may have the type essentially
hard-coded, or as in the case for Cell interrupts are just messages
past around that have no real concept of type, or the platform
could even have a virtual PIC as on the PS3.
Signed-off-by: NMark Nelson <markn@au1.ibm.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
      3ff68a6a
  5. 10 11月, 2008 3 次提交
  7. 22 10月, 2008 1 次提交
  9. 21 10月, 2008 2 次提交
  11. 16 10月, 2008 29 次提交
  13. 02 10月, 2008 1 次提交
    • D
      genirq: record trigger type · 0c5d1eb7
      由 David Brownell 提交于 
      Genirq hasn't previously recorded the trigger type used by any given IRQ,
although some irq_chip support has done so.  That data can be useful when
troubleshooting.  This patch records it in the relevant irq_desc.status
bits, and improves consistency between the two driver-visible calls
affected:

 - Make set_irq_type() usage match request_irq() usage:
    * IRQ_TYPE_NONE should be a NOP; succeed, so irq_chip methods
      won't have to handle that case any more (many do it wrong).
    * IRQ_TYPE_PROBE is ignored; any buggy out-of-tree callers
      might need to switch over to the real IRQ probing code.
    * emit the same diagnostics (from shared utility code)

 - Their kerneldoc now reflects usage:
    * request_irq() flags include IRQF_TRIGGER_* to specify
      active edge(s)/level ... docs previously omitted that
    * set_irq_type() is declared in <linux/irq.h> so callers
      should use the (bit-equivalent) IRQ_TYPE_* symbols there

Also: adds a warning about shared IRQs that don't end up using the
requested trigger mode; and fix an unrelated "sparse" warning.
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Acked-by: NThomas Gleixner <tglx@linutronix.de>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
      0c5d1eb7
  15. 07 9月, 2008 1 次提交