diff options
| author | Maxime Ripard <maxime.ripard@free-electrons.com> | 2014-06-05 13:26:04 (GMT) |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2014-06-19 07:35:12 (GMT) |
| commit | aebdc8abc9db86e2bd33070fc2f961012fff74b4 (patch) | |
| tree | 8b3488e14c7e7baf07769f89cabb27c25277a08d /drivers/pinctrl/sunxi/pinctrl-sunxi.h | |
| parent | c11a33c15ebc7c516551fef624efd9927da8cd81 (diff) | |
| download | linux-aebdc8abc9db86e2bd33070fc2f961012fff74b4.tar.xz | |
pinctrl: sunxi: Implement multiple interrupt banks support
The A23 and A31 support multiple interrupt banks. Support it by adding a linear
domain covering all the banks. It's trickier than it should because there's an
interrupt per bank, so we have multiple interrupts using the same domain.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/sunxi/pinctrl-sunxi.h')
| -rw-r--r-- | drivers/pinctrl/sunxi/pinctrl-sunxi.h | 34 |
1 files changed, 25 insertions, 9 deletions
diff --git a/drivers/pinctrl/sunxi/pinctrl-sunxi.h b/drivers/pinctrl/sunxi/pinctrl-sunxi.h index 7ddcce0..4245b96 100644 --- a/drivers/pinctrl/sunxi/pinctrl-sunxi.h +++ b/drivers/pinctrl/sunxi/pinctrl-sunxi.h @@ -53,7 +53,7 @@ #define PULL_PINS_BITS 2 #define PULL_PINS_MASK 0x03 -#define SUNXI_IRQ_NUMBER 32 +#define IRQ_PER_BANK 32 #define IRQ_CFG_REG 0x200 #define IRQ_CFG_IRQ_PER_REG 8 @@ -68,6 +68,8 @@ #define IRQ_STATUS_IRQ_BITS 1 #define IRQ_STATUS_IRQ_MASK ((1 << IRQ_STATUS_IRQ_BITS) - 1) +#define IRQ_MEM_SIZE 0x20 + #define IRQ_EDGE_RISING 0x00 #define IRQ_EDGE_FALLING 0x01 #define IRQ_LEVEL_HIGH 0x02 @@ -115,8 +117,8 @@ struct sunxi_pinctrl { unsigned nfunctions; struct sunxi_pinctrl_group *groups; unsigned ngroups; - int irq; - int irq_array[SUNXI_IRQ_NUMBER]; + int *irq; + unsigned *irq_array; spinlock_t lock; struct pinctrl_dev *pctl_dev; }; @@ -228,8 +230,10 @@ static inline u32 sunxi_pull_offset(u16 pin) static inline u32 sunxi_irq_cfg_reg(u16 irq) { - u8 reg = irq / IRQ_CFG_IRQ_PER_REG * 0x04; - return reg + IRQ_CFG_REG; + u8 bank = irq / IRQ_PER_BANK; + u8 reg = (irq % IRQ_PER_BANK) / IRQ_CFG_IRQ_PER_REG * 0x04; + + return IRQ_CFG_REG + bank * IRQ_MEM_SIZE + reg; } static inline u32 sunxi_irq_cfg_offset(u16 irq) @@ -238,10 +242,16 @@ static inline u32 sunxi_irq_cfg_offset(u16 irq) return irq_num * IRQ_CFG_IRQ_BITS; } +static inline u32 sunxi_irq_ctrl_reg_from_bank(u8 bank) +{ + return IRQ_CTRL_REG + bank * IRQ_MEM_SIZE; +} + static inline u32 sunxi_irq_ctrl_reg(u16 irq) { - u8 reg = irq / IRQ_CTRL_IRQ_PER_REG * 0x04; - return reg + IRQ_CTRL_REG; + u8 bank = irq / IRQ_PER_BANK; + + return sunxi_irq_ctrl_reg_from_bank(bank); } static inline u32 sunxi_irq_ctrl_offset(u16 irq) @@ -250,10 +260,16 @@ static inline u32 sunxi_irq_ctrl_offset(u16 irq) return irq_num * IRQ_CTRL_IRQ_BITS; } +static inline u32 sunxi_irq_status_reg_from_bank(u8 bank) +{ + return IRQ_STATUS_REG + bank * IRQ_MEM_SIZE; +} + static inline u32 sunxi_irq_status_reg(u16 irq) { - u8 reg = irq / IRQ_STATUS_IRQ_PER_REG * 0x04; - return reg + IRQ_STATUS_REG; + u8 bank = irq / IRQ_PER_BANK; + + return sunxi_irq_status_reg_from_bank(bank); } static inline u32 sunxi_irq_status_offset(u16 irq) |