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103 Commits

Author SHA1 Message Date
David Jander
17e8b42c17 gpio/pca953x: Interrupt pin is active-low 
The interrupt pin of the PCA953x is active low, and on the rising edge
no interrupt should be produced.

Signed-off-by: David Jander <david@protonic.nl>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
 2011-06-08 11:34:41 -06:00
David Jander
910c8fb6b4 gpio/pca953x: Fix IRQ support. 
It seems that in the normal case, IRQ_NOREQUEST needs to be explicitly
cleared, otherwise claiming the interrupt fails.
In the case of sparse interrupts, the descriptor needs to be allocated
first.

Signed-off-by: David Jander <david@protonic.nl>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
 2011-06-08 11:34:37 -06:00
Grant Likely
c103de2404 gpio: reorganize drivers 
Sort the gpio makefile and enforce the naming convention gpio-*.c for
gpio drivers.

v2: cleaned up filenames in Kconfig and comment blocks
v3: fixup use of BASIC_MMIO to GENERIC_GPIO for mxc

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
 2011-06-06 10:10:11 -06:00