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Split the header file into two parts and move them to directories where
they belong.
Information on internal structure of FIQ buffer is moved to
<linux/platform_data/ams-delta-fiq.h> for ams-delta-serio driver use.
Other information used by ams-delta board init file and FIQ code is
made local to mach-omap1 root directory.
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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With introduction of GPIO lookup tables to Amstrad Delta board init
file, semantics of symbols representing OMAP GPIO pins defined in
<mach/board-ams-delta.h> changed from statically assigned global GPIO
numbers to hardware pin numbers local to OMAP "gpio-0-15" chip.
This patch modifies deferred FIQ interrupt handler so it no longer uses
static GPIO numbers in favour of IRQ data descriptors obtained at FIQ
initialization time from descriptor of the GPIO chip with use of its
hardware pin numbers. The chip descriptor is passed from the board
init file.
As a benefit, the deferred FIQ handler should work faster.
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
[tony@atomide.com: removed duplicate gpiochip_match_by_label]
Signed-off-by: Tony Lindgren <tony@atomide.com>
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After OMAP1 IRQ definitions have been changed by commit 685e2d08c54b
("ARM: OMAP1: Change interrupt numbering for sparse IRQ") introduced
in v4.2, ams-delta FIQ handler which depends on them no longer works
as expected. Fix it.
Created and tested on Amstrad Delta against Linux-4.7-rc3
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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This is now omap1 specific files.
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Fixes generated by 'codespell' and manually reviewed.
Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
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the FIQ routine
This patch introduces an IRQ handler used for processing interrupts generated
by the FIQ handler when it decides there are data ready for processing.
The handler further invokes device specific interrupt routines based on
interrupt source counters passed from the FIQ handler.
The handler setup function is intended to be called from the board
provided init_machine() callback.
Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
[tony@atomide.com: Updated to include linux/io.h instead of plat/io.h
Signed-off-by: Tony Lindgren <tony@atomide.com>
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processing
This patch introduces a Fast Interrupt Request (FIQ) handler for Amstrad Delta
(E3) videophone. The handler's purpose is to process interrupts generated by a
GPIO line that a serial keyboard clock hangs off. It collects consecutive bits
into words, pushing them into a buffer, then requests a higher level interrupt
after one or more words are ready for further processing by a keyboard port
driver.
The handler also processes interrupts generated by two other GPIO lines, used
by other on-board supported devices, by simply requesting a higher level
interrupt, that in turn should invoke those device's specific irq handlers.
IRQ12 line, not used by OMAP1510 hardware (described as reserved), has been
choosen as a higher level interrupt source.
Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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