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| author |   Mesih Kilinc <mesihkilinc@gmail.com> | 2018-12-02 23:23:40 +0300 |
|---|---|---|
| committer |   Marc Zyngier <marc.zyngier@arm.com> | 2018-12-13 09:35:58 +0000 |
| commit | d4fc2ea0f0f883539d91e5e38263e143bc249774 (patch) | |
| tree | 19de885c13d5dba17da231a2c70d374eda61b631 /drivers/irqchip | |
| parent | irqchip/sun4i: Add a struct to hold global variables (diff) | |
| download | linux-dev-d4fc2ea0f0f883539d91e5e38263e143bc249774.tar.xz linux-dev-d4fc2ea0f0f883539d91e5e38263e143bc249774.zip | |
irqchip/sun4i: Move IC specific register offsets to struct
This patch moves IC specific register offsets to sun4i_irq_chip_data
struct in order to support different chips.
Signed-off-by: Mesih Kilinc <mesihkilinc@gmail.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'drivers/irqchip')
| -rw-r--r-- | drivers/irqchip/irq-sun4i.c | 33 |
1 files changed, 21 insertions, 12 deletions
diff --git a/drivers/irqchip/irq-sun4i.c b/drivers/irqchip/irq-sun4i.c index 0c32506a31b9..507f4e378d2d 100644 --- a/drivers/irqchip/irq-sun4i.c +++ b/drivers/irqchip/irq-sun4i.c @@ -28,12 +28,16 @@ #define SUN4I_IRQ_NMI_CTRL_REG 0x0c #define SUN4I_IRQ_PENDING_REG(x) (0x10 + 0x4 * x) #define SUN4I_IRQ_FIQ_PENDING_REG(x) (0x20 + 0x4 * x) -#define SUN4I_IRQ_ENABLE_REG(x) (0x40 + 0x4 * x) -#define SUN4I_IRQ_MASK_REG(x) (0x50 + 0x4 * x) +#define SUN4I_IRQ_ENABLE_REG(data, x) ((data)->enable_reg_offset + 0x4 * x) +#define SUN4I_IRQ_MASK_REG(data, x) ((data)->mask_reg_offset + 0x4 * x) +#define SUN4I_IRQ_ENABLE_REG_OFFSET 0x40 +#define SUN4I_IRQ_MASK_REG_OFFSET 0x50 struct sun4i_irq_chip_data { void __iomem *irq_base; struct irq_domain *irq_domain; + u32 enable_reg_offset; + u32 mask_reg_offset; }; static struct sun4i_irq_chip_data *irq_ic_data; @@ -57,9 +61,10 @@ static void sun4i_irq_mask(struct irq_data *irqd) int reg = irq / 32; u32 val; - val = readl(irq_ic_data->irq_base + SUN4I_IRQ_ENABLE_REG(reg)); + val = readl(irq_ic_data->irq_base + + SUN4I_IRQ_ENABLE_REG(irq_ic_data, reg)); writel(val & ~(1 << irq_off), - irq_ic_data->irq_base + SUN4I_IRQ_ENABLE_REG(reg)); + irq_ic_data->irq_base + SUN4I_IRQ_ENABLE_REG(irq_ic_data, reg)); } static void sun4i_irq_unmask(struct irq_data *irqd) @@ -69,9 +74,10 @@ static void sun4i_irq_unmask(struct irq_data *irqd) int reg = irq / 32; u32 val; - val = readl(irq_ic_data->irq_base + SUN4I_IRQ_ENABLE_REG(reg)); + val = readl(irq_ic_data->irq_base + + SUN4I_IRQ_ENABLE_REG(irq_ic_data, reg)); writel(val | (1 << irq_off), - irq_ic_data->irq_base + SUN4I_IRQ_ENABLE_REG(reg)); + irq_ic_data->irq_base + SUN4I_IRQ_ENABLE_REG(irq_ic_data, reg)); } static struct irq_chip sun4i_irq_chip = { @@ -105,20 +111,23 @@ static int __init sun4i_of_init(struct device_node *node, return -ENOMEM; } + irq_ic_data->enable_reg_offset = SUN4I_IRQ_ENABLE_REG_OFFSET; + irq_ic_data->mask_reg_offset = SUN4I_IRQ_MASK_REG_OFFSET; + irq_ic_data->irq_base = of_iomap(node, 0); if (!irq_ic_data->irq_base) panic("%pOF: unable to map IC registers\n", node); /* Disable all interrupts */ - writel(0, irq_ic_data->irq_base + SUN4I_IRQ_ENABLE_REG(0)); - writel(0, irq_ic_data->irq_base + SUN4I_IRQ_ENABLE_REG(1)); - writel(0, irq_ic_data->irq_base + SUN4I_IRQ_ENABLE_REG(2)); + writel(0, irq_ic_data->irq_base + SUN4I_IRQ_ENABLE_REG(irq_ic_data, 0)); + writel(0, irq_ic_data->irq_base + SUN4I_IRQ_ENABLE_REG(irq_ic_data, 1)); + writel(0, irq_ic_data->irq_base + SUN4I_IRQ_ENABLE_REG(irq_ic_data, 2)); /* Unmask all the interrupts, ENABLE_REG(x) is used for masking */ - writel(0, irq_ic_data->irq_base + SUN4I_IRQ_MASK_REG(0)); - writel(0, irq_ic_data->irq_base + SUN4I_IRQ_MASK_REG(1)); - writel(0, irq_ic_data->irq_base + SUN4I_IRQ_MASK_REG(2)); + writel(0, irq_ic_data->irq_base + SUN4I_IRQ_MASK_REG(irq_ic_data, 0)); + writel(0, irq_ic_data->irq_base + SUN4I_IRQ_MASK_REG(irq_ic_data, 1)); + writel(0, irq_ic_data->irq_base + SUN4I_IRQ_MASK_REG(irq_ic_data, 2)); /* Clear all the pending interrupts */ writel(0xffffffff, irq_ic_data->irq_base + SUN4I_IRQ_PENDING_REG(0)); |