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ARM: OMAP1: ams-delta FIQ: don't use static GPIO numbers

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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>
This commit is contained in:
Janusz Krzysztofik
2018-06-22 00:41:24 +02:00
committed by Tony Lindgren
parent 41f8fee385
commit 97abda99a5
3 changed files with 58 additions and 17 deletions
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2
arch/arm/mach-omap1/include/mach/ams-delta-fiq.h
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@@ -73,7 +73,7 @@
extern unsigned int fiq_buffer[];
extern unsigned char qwerty_fiqin_start, qwerty_fiqin_end;
extern void __init ams_delta_init_fiq(void);
extern void __init ams_delta_init_fiq(struct gpio_chip *chip);
#endif
#endif