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gpio: pl061: add DT binding support

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This adds devicetree binding support to the ARM pl061 driver removing the
platform_data dependency. When DT binding is used, the gpio numbering is
assigned dynamically. For now, interrupts are not supported with DT until
irqdomains learn dynamic irq assignment.

Rather than add another case of -1, updating the driver to use NO_IRQ.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
This commit is contained in:
Rob Herring
2011-08-10 16:31:46 -05:00
committed by Grant Likely
parent eb9ae7f2a3
commit 76c05c8a0d
2 changed files with 22 additions and 12 deletions
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3
include/linux/amba/pl061.h
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@@ -7,8 +7,7 @@ struct pl061_platform_data {
unsigned gpio_base;
/* number of the first IRQ.
* If the IRQ functionality in not desired this must be set to
* (unsigned) -1.
* If the IRQ functionality in not desired this must be set to NO_IRQ.
*/
unsigned irq_base;