diff options
| author | David Brownell <dbrownell@users.sourceforge.net> | 2009-06-25 17:01:31 -0700 |
|---|---|---|
| committer | Kevin Hilman <khilman@deeprootsystems.com> | 2009-08-26 10:57:00 +0300 |
| commit | 7a36071e7954836ba437987e5ca4ced174462b28 (patch) | |
| tree | 921d150b7f2cc677d226daa40a18f3ab9bf6da78 /arch/arm/mach-davinci/include/mach | |
| parent | af5dbaef76cb01995639cef10ca6f5a2b08207e8 (diff) | |
davinci: dm365 gpio irq support
Support DM365 GPIOs ... primarily by handling non-banked GPIO IRQs:
- Flag DM365 chips as using non-banked GPIO interrupts, using a
new soc_info field.
- Replace the gpio_to_irq() mapping logic. This now uses some
runtime infrastructure, keyed off that new soc_info field,
which doesn't handle irq_to_gpio().
- Provide a new irq_chip ... GPIO IRQs handled directly by AINTC
still need edge triggering managed by the GPIO controller.
DM365 chips no longer falsely report 104 GPIO IRQs as they boot.
Intelligence about IRQ muxing is missing, so for the moment this
only exposes the first eight DM365 GPIOs, which are never muxed.
The next eight are muxed, half with Ethernet (which uses most of
those pins anyway).
Tested on DM355 (10 unbanked IRQs _or_ 104 banked ones) and also
on DM365 (16 unbanked ones, only 8 made available).
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Diffstat (limited to 'arch/arm/mach-davinci/include/mach')
| -rw-r--r-- | arch/arm/mach-davinci/include/mach/common.h | 1 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/include/mach/gpio.h | 8 |
2 files changed, 4 insertions, 5 deletions
diff --git a/arch/arm/mach-davinci/include/mach/common.h b/arch/arm/mach-davinci/include/mach/common.h index b21393b24d6..1fd3917cae4 100644 --- a/arch/arm/mach-davinci/include/mach/common.h +++ b/arch/arm/mach-davinci/include/mach/common.h @@ -63,6 +63,7 @@ struct davinci_soc_info { void __iomem *gpio_base; unsigned gpio_num; unsigned gpio_irq; + unsigned gpio_unbanked; struct platform_device *serial_dev; struct emac_platform_data *emac_pdata; dma_addr_t sram_dma; diff --git a/arch/arm/mach-davinci/include/mach/gpio.h b/arch/arm/mach-davinci/include/mach/gpio.h index ae074556831..ebcc29babea 100644 --- a/arch/arm/mach-davinci/include/mach/gpio.h +++ b/arch/arm/mach-davinci/include/mach/gpio.h @@ -142,15 +142,13 @@ static inline int gpio_cansleep(unsigned gpio) static inline int gpio_to_irq(unsigned gpio) { - if (gpio >= DAVINCI_N_GPIO) - return -EINVAL; - return davinci_soc_info.intc_irq_num + gpio; + return __gpio_to_irq(gpio); } static inline int irq_to_gpio(unsigned irq) { - /* caller guarantees gpio_to_irq() succeeded */ - return irq - davinci_soc_info.intc_irq_num; + /* don't support the reverse mapping */ + return -ENOSYS; } #endif /* __DAVINCI_GPIO_H */ |