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Date: Tue, 24 May 2016 18:43:44 +0530
From: Laxman Dewangan <ldewangan@...dia.com>
To: <linus.walleij@...aro.org>, <gnurou@...il.com>
CC: <linux-gpio@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
"Laxman Dewangan" <ldewangan@...dia.com>
Subject: [PATCH 1/3] gpio: max77620: Configure interrupt trigger level
The GPIO sub modules of MAX77620 offers to configure the GPIO
interrupt trigger level as RISING and FALLING edge.
Pass this information to regmap-irg when registering for GPIO
interrupts.
Signed-off-by: Laxman Dewangan <ldewangan@...dia.com>
---
drivers/gpio/gpio-max77620.c | 67 ++++++++++++++++++++++++++++++++++++++------
1 file changed, 59 insertions(+), 8 deletions(-)
diff --git a/drivers/gpio/gpio-max77620.c b/drivers/gpio/gpio-max77620.c
index d927562..35f365c 100644
--- a/drivers/gpio/gpio-max77620.c
+++ b/drivers/gpio/gpio-max77620.c
@@ -27,14 +27,62 @@ struct max77620_gpio {
};
static const struct regmap_irq max77620_gpio_irqs[] = {
- REGMAP_IRQ_REG(0, 0, MAX77620_IRQ_LVL2_GPIO_EDGE0),
- REGMAP_IRQ_REG(1, 0, MAX77620_IRQ_LVL2_GPIO_EDGE1),
- REGMAP_IRQ_REG(2, 0, MAX77620_IRQ_LVL2_GPIO_EDGE2),
- REGMAP_IRQ_REG(3, 0, MAX77620_IRQ_LVL2_GPIO_EDGE3),
- REGMAP_IRQ_REG(4, 0, MAX77620_IRQ_LVL2_GPIO_EDGE4),
- REGMAP_IRQ_REG(5, 0, MAX77620_IRQ_LVL2_GPIO_EDGE5),
- REGMAP_IRQ_REG(6, 0, MAX77620_IRQ_LVL2_GPIO_EDGE6),
- REGMAP_IRQ_REG(7, 0, MAX77620_IRQ_LVL2_GPIO_EDGE7),
+ [0] = {
+ .mask = MAX77620_IRQ_LVL2_GPIO_EDGE0,
+ .type_rising_mask = MAX77620_CNFG_GPIO_INT_RISING,
+ .type_falling_mask = MAX77620_CNFG_GPIO_INT_FALLING,
+ .reg_offset = 0,
+ .type_reg_offset = 0,
+ },
+ [1] = {
+ .mask = MAX77620_IRQ_LVL2_GPIO_EDGE1,
+ .type_rising_mask = MAX77620_CNFG_GPIO_INT_RISING,
+ .type_falling_mask = MAX77620_CNFG_GPIO_INT_FALLING,
+ .reg_offset = 0,
+ .type_reg_offset = 1,
+ },
+ [2] = {
+ .mask = MAX77620_IRQ_LVL2_GPIO_EDGE2,
+ .type_rising_mask = MAX77620_CNFG_GPIO_INT_RISING,
+ .type_falling_mask = MAX77620_CNFG_GPIO_INT_FALLING,
+ .reg_offset = 0,
+ .type_reg_offset = 2,
+ },
+ [3] = {
+ .mask = MAX77620_IRQ_LVL2_GPIO_EDGE3,
+ .type_rising_mask = MAX77620_CNFG_GPIO_INT_RISING,
+ .type_falling_mask = MAX77620_CNFG_GPIO_INT_FALLING,
+ .reg_offset = 0,
+ .type_reg_offset = 3,
+ },
+ [4] = {
+ .mask = MAX77620_IRQ_LVL2_GPIO_EDGE4,
+ .type_rising_mask = MAX77620_CNFG_GPIO_INT_RISING,
+ .type_falling_mask = MAX77620_CNFG_GPIO_INT_FALLING,
+ .reg_offset = 0,
+ .type_reg_offset = 4,
+ },
+ [5] = {
+ .mask = MAX77620_IRQ_LVL2_GPIO_EDGE5,
+ .type_rising_mask = MAX77620_CNFG_GPIO_INT_RISING,
+ .type_falling_mask = MAX77620_CNFG_GPIO_INT_FALLING,
+ .reg_offset = 0,
+ .type_reg_offset = 5,
+ },
+ [6] = {
+ .mask = MAX77620_IRQ_LVL2_GPIO_EDGE6,
+ .type_rising_mask = MAX77620_CNFG_GPIO_INT_RISING,
+ .type_falling_mask = MAX77620_CNFG_GPIO_INT_FALLING,
+ .reg_offset = 0,
+ .type_reg_offset = 6,
+ },
+ [7] = {
+ .mask = MAX77620_IRQ_LVL2_GPIO_EDGE7,
+ .type_rising_mask = MAX77620_CNFG_GPIO_INT_RISING,
+ .type_falling_mask = MAX77620_CNFG_GPIO_INT_FALLING,
+ .reg_offset = 0,
+ .type_reg_offset = 7,
+ },
};
static struct regmap_irq_chip max77620_gpio_irq_chip = {
@@ -42,8 +90,11 @@ static struct regmap_irq_chip max77620_gpio_irq_chip = {
.irqs = max77620_gpio_irqs,
.num_irqs = ARRAY_SIZE(max77620_gpio_irqs),
.num_regs = 1,
+ .num_type_reg = 8,
.irq_reg_stride = 1,
+ .type_reg_stride = 1,
.status_base = MAX77620_REG_IRQ_LVL2_GPIO,
+ .type_base = MAX77620_REG_GPIO0,
};
static int max77620_gpio_dir_input(struct gpio_chip *gc, unsigned int offset)
--
2.1.4
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