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| author | Samuel Ortiz <sameo@openedhand.com> | 2008-06-20 11:02:19 +0200 |
|---|---|---|
| committer | Samuel Ortiz <samuel@sortiz.org> | 2008-07-20 19:52:38 +0200 |
| commit | 6f2384c4bdd4be3dc1e5d22ed5e6f0c3076fda60 (patch) | |
| tree | 2b2db76100b1e7420a661ca1491b67e7b5de79b0 /include/linux/mfd | |
| parent | 5b664cb235e97afbf34db9c4d77f08ebd725335e (diff) | |
| download | linux-3.10-6f2384c4bdd4be3dc1e5d22ed5e6f0c3076fda60.tar.gz linux-3.10-6f2384c4bdd4be3dc1e5d22ed5e6f0c3076fda60.tar.bz2 linux-3.10-6f2384c4bdd4be3dc1e5d22ed5e6f0c3076fda60.zip | |
mfd: asic3 gpiolib support
ASIC3 is, among other things, a GPIO extender. We should thus have it
supporting the current gpiolib API.
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/linux/mfd')
| -rw-r--r-- | include/linux/mfd/asic3.h | 24 |
1 files changed, 11 insertions, 13 deletions
diff --git a/include/linux/mfd/asic3.h b/include/linux/mfd/asic3.h index 4ab2162db13..06ef8165f40 100644 --- a/include/linux/mfd/asic3.h +++ b/include/linux/mfd/asic3.h @@ -16,16 +16,6 @@ #include <linux/types.h> -struct asic3 { - void __iomem *mapping; - unsigned int bus_shift; - unsigned int irq_nr; - unsigned int irq_base; - spinlock_t lock; - u16 irq_bothedge[4]; - struct device *dev; -}; - struct asic3_platform_data { struct { u32 dir; @@ -41,18 +31,19 @@ struct asic3_platform_data { unsigned int irq_base; + unsigned int gpio_base; + struct platform_device **children; unsigned int n_children; }; -int asic3_gpio_get_value(struct asic3 *asic, unsigned gpio); -void asic3_gpio_set_value(struct asic3 *asic, unsigned gpio, int val); - #define ASIC3_NUM_GPIO_BANKS 4 #define ASIC3_GPIOS_PER_BANK 16 #define ASIC3_NUM_GPIOS 64 #define ASIC3_NR_IRQS ASIC3_NUM_GPIOS + 6 +#define ASIC3_TO_GPIO(gpio) (NR_BUILTIN_GPIO + (gpio)) + #define ASIC3_GPIO_BANK_A 0 #define ASIC3_GPIO_BANK_B 1 #define ASIC3_GPIO_BANK_C 2 @@ -73,6 +64,13 @@ void asic3_gpio_set_value(struct asic3 *asic, unsigned gpio, int val); #define ASIC3_GPIO_C_Base 0x0200 #define ASIC3_GPIO_D_Base 0x0300 +#define ASIC3_GPIO_TO_BANK(gpio) ((gpio) >> 4) +#define ASIC3_GPIO_TO_BIT(gpio) ((gpio) - \ + (ASIC3_GPIOS_PER_BANK * ((gpio) >> 4))) +#define ASIC3_GPIO_TO_MASK(gpio) (1 << ASIC3_GPIO_TO_BIT(gpio)) +#define ASIC3_GPIO_TO_BASE(gpio) (ASIC3_GPIO_A_Base + (((gpio) >> 4) * 0x0100)) +#define ASIC3_BANK_TO_BASE(bank) (ASIC3_GPIO_A_Base + ((bank) * 0x100)) + #define ASIC3_GPIO_Mask 0x00 /* R/W 0:don't mask */ #define ASIC3_GPIO_Direction 0x04 /* R/W 0:input */ #define ASIC3_GPIO_Out 0x08 /* R/W 0:output low */ |