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Message-Id: <1375117247-6376-4-git-send-email-p.zabel@pengutronix.de>
Date: Mon, 29 Jul 2013 19:00:44 +0200
From: Philipp Zabel <p.zabel@...gutronix.de>
To: linux-kernel@...r.kernel.org
Cc: Mark Brown <broonie@...nel.org>,
Samuel Ortiz <sameo@...ux.intel.com>,
Lee Jones <lee.jones@...aro.org>,
Krystian Garbaciak <krystian.garbaciak@...semi.com>,
Philipp Zabel <p.zabel@...gutronix.de>
Subject: [PATCH v3 3/6] mfd: da9063: Add IRQ support
From: Krystian Garbaciak <krystian.garbaciak@...semi.com>
This patch adds a regmap irqchip for DA9063 IRQs. It depends on
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap.git tags/regmap-irq-ack-mask
Signed-off-by: Krystian Garbaciak <krystian.garbaciak@...semi.com>
Signed-off-by: Philipp Zabel <p.zabel@...gutronix.de>
Reviewed-by: Mark Brown <broonie@...aro.org>
---
drivers/mfd/Makefile | 2 +-
drivers/mfd/da9063-core.c | 56 ++++++++++++
drivers/mfd/da9063-irq.c | 193 ++++++++++++++++++++++++++++++++++++++++
include/linux/mfd/da9063/core.h | 38 ++++++++
4 files changed, 288 insertions(+), 1 deletion(-)
create mode 100644 drivers/mfd/da9063-irq.c
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 0bb84d5..15b905c 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -107,7 +107,7 @@ obj-$(CONFIG_MFD_LP8788) += lp8788.o lp8788-irq.o
da9055-objs := da9055-core.o da9055-i2c.o
obj-$(CONFIG_MFD_DA9055) += da9055.o
-da9063-objs := da9063-core.o da9063-i2c.o
+da9063-objs := da9063-core.o da9063-irq.o da9063-i2c.o
obj-$(CONFIG_MFD_DA9063) += da9063.o
obj-$(CONFIG_MFD_MAX77686) += max77686.o max77686-irq.o
diff --git a/drivers/mfd/da9063-core.c b/drivers/mfd/da9063-core.c
index 29f3ed1..c9cf8d9 100644
--- a/drivers/mfd/da9063-core.c
+++ b/drivers/mfd/da9063-core.c
@@ -34,9 +34,52 @@
#include <linux/uaccess.h>
+static struct resource da9063_regulators_resources[] = {
+ {
+ .name = "LDO_LIM",
+ .start = DA9063_IRQ_LDO_LIM,
+ .end = DA9063_IRQ_LDO_LIM,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource da9063_rtc_resources[] = {
+ {
+ .name = "ALARM",
+ .start = DA9063_IRQ_ALARM,
+ .end = DA9063_IRQ_ALARM,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .name = "TICK",
+ .start = DA9063_IRQ_TICK,
+ .end = DA9063_IRQ_TICK,
+ .flags = IORESOURCE_IRQ,
+ }
+};
+
+static struct resource da9063_onkey_resources[] = {
+ {
+ .start = DA9063_IRQ_ONKEY,
+ .end = DA9063_IRQ_ONKEY,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource da9063_hwmon_resources[] = {
+ {
+ .start = DA9063_IRQ_ADC_RDY,
+ .end = DA9063_IRQ_ADC_RDY,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+
static struct mfd_cell da9063_devs[] = {
{
.name = DA9063_DRVNAME_REGULATORS,
+ .num_resources = ARRAY_SIZE(da9063_regulators_resources),
+ .resources = da9063_regulators_resources,
},
{
.name = DA9063_DRVNAME_LEDS,
@@ -46,12 +89,18 @@ static struct mfd_cell da9063_devs[] = {
},
{
.name = DA9063_DRVNAME_HWMON,
+ .num_resources = ARRAY_SIZE(da9063_hwmon_resources),
+ .resources = da9063_hwmon_resources,
},
{
.name = DA9063_DRVNAME_ONKEY,
+ .num_resources = ARRAY_SIZE(da9063_onkey_resources),
+ .resources = da9063_onkey_resources,
},
{
.name = DA9063_DRVNAME_RTC,
+ .num_resources = ARRAY_SIZE(da9063_rtc_resources),
+ .resources = da9063_rtc_resources,
},
{
.name = DA9063_DRVNAME_VIBRATION,
@@ -110,6 +159,12 @@ int da9063_device_init(struct da9063 *da9063, unsigned int irq)
"Device detected (model-ID: 0x%02X rev-ID: 0x%02X)\n",
model, revision);
+ ret = da9063_irq_init(da9063);
+ if (ret) {
+ dev_err(da9063->dev, "Cannot initialize interrupts.\n");
+ return ret;
+ }
+
ret = mfd_add_devices(da9063->dev, -1, da9063_devs,
ARRAY_SIZE(da9063_devs), NULL, da9063->irq_base,
NULL);
@@ -122,6 +177,7 @@ int da9063_device_init(struct da9063 *da9063, unsigned int irq)
void da9063_device_exit(struct da9063 *da9063)
{
mfd_remove_devices(da9063->dev);
+ da9063_irq_exit(da9063);
}
MODULE_DESCRIPTION("PMIC driver for Dialog DA9063");
diff --git a/drivers/mfd/da9063-irq.c b/drivers/mfd/da9063-irq.c
new file mode 100644
index 0000000..8229226
--- /dev/null
+++ b/drivers/mfd/da9063-irq.c
@@ -0,0 +1,193 @@
+/* da9063-irq.c: Interrupts support for Dialog DA9063
+ *
+ * Copyright 2012 Dialog Semiconductor Ltd.
+ * Copyright 2013 Philipp Zabel, Pengutronix
+ *
+ * Author: Michal Hajduk <michal.hajduk@...semi.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/irq.h>
+#include <linux/mfd/core.h>
+#include <linux/interrupt.h>
+#include <linux/regmap.h>
+#include <linux/mfd/da9063/core.h>
+#include <linux/mfd/da9063/pdata.h>
+
+#define DA9063_REG_EVENT_A_OFFSET 0
+#define DA9063_REG_EVENT_B_OFFSET 1
+#define DA9063_REG_EVENT_C_OFFSET 2
+#define DA9063_REG_EVENT_D_OFFSET 3
+#define EVENTS_BUF_LEN 4
+
+static const u8 mask_events_buf[] = { [0 ... (EVENTS_BUF_LEN - 1)] = ~0 };
+
+struct da9063_irq_data {
+ u16 reg;
+ u8 mask;
+};
+
+static struct regmap_irq da9063_irqs[] = {
+ /* DA9063 event A register */
+ [DA9063_IRQ_ONKEY] = {
+ .reg_offset = DA9063_REG_EVENT_A_OFFSET,
+ .mask = DA9063_M_ONKEY,
+ },
+ [DA9063_IRQ_ALARM] = {
+ .reg_offset = DA9063_REG_EVENT_A_OFFSET,
+ .mask = DA9063_M_ALARM,
+ },
+ [DA9063_IRQ_TICK] = {
+ .reg_offset = DA9063_REG_EVENT_A_OFFSET,
+ .mask = DA9063_M_TICK,
+ },
+ [DA9063_IRQ_ADC_RDY] = {
+ .reg_offset = DA9063_REG_EVENT_A_OFFSET,
+ .mask = DA9063_M_ADC_RDY,
+ },
+ [DA9063_IRQ_SEQ_RDY] = {
+ .reg_offset = DA9063_REG_EVENT_A_OFFSET,
+ .mask = DA9063_M_SEQ_RDY,
+ },
+ /* DA9063 event B register */
+ [DA9063_IRQ_WAKE] = {
+ .reg_offset = DA9063_REG_EVENT_B_OFFSET,
+ .mask = DA9063_M_WAKE,
+ },
+ [DA9063_IRQ_TEMP] = {
+ .reg_offset = DA9063_REG_EVENT_B_OFFSET,
+ .mask = DA9063_M_TEMP,
+ },
+ [DA9063_IRQ_COMP_1V2] = {
+ .reg_offset = DA9063_REG_EVENT_B_OFFSET,
+ .mask = DA9063_M_COMP_1V2,
+ },
+ [DA9063_IRQ_LDO_LIM] = {
+ .reg_offset = DA9063_REG_EVENT_B_OFFSET,
+ .mask = DA9063_M_LDO_LIM,
+ },
+ [DA9063_IRQ_REG_UVOV] = {
+ .reg_offset = DA9063_REG_EVENT_B_OFFSET,
+ .mask = DA9063_M_UVOV,
+ },
+ [DA9063_IRQ_VDD_MON] = {
+ .reg_offset = DA9063_REG_EVENT_B_OFFSET,
+ .mask = DA9063_M_VDD_MON,
+ },
+ [DA9063_IRQ_WARN] = {
+ .reg_offset = DA9063_REG_EVENT_B_OFFSET,
+ .mask = DA9063_M_VDD_WARN,
+ },
+ /* DA9063 event C register */
+ [DA9063_IRQ_GPI0] = {
+ .reg_offset = DA9063_REG_EVENT_C_OFFSET,
+ .mask = DA9063_M_GPI0,
+ },
+ [DA9063_IRQ_GPI1] = {
+ .reg_offset = DA9063_REG_EVENT_C_OFFSET,
+ .mask = DA9063_M_GPI1,
+ },
+ [DA9063_IRQ_GPI2] = {
+ .reg_offset = DA9063_REG_EVENT_C_OFFSET,
+ .mask = DA9063_M_GPI2,
+ },
+ [DA9063_IRQ_GPI3] = {
+ .reg_offset = DA9063_REG_EVENT_C_OFFSET,
+ .mask = DA9063_M_GPI3,
+ },
+ [DA9063_IRQ_GPI4] = {
+ .reg_offset = DA9063_REG_EVENT_C_OFFSET,
+ .mask = DA9063_M_GPI4,
+ },
+ [DA9063_IRQ_GPI5] = {
+ .reg_offset = DA9063_REG_EVENT_C_OFFSET,
+ .mask = DA9063_M_GPI5,
+ },
+ [DA9063_IRQ_GPI6] = {
+ .reg_offset = DA9063_REG_EVENT_C_OFFSET,
+ .mask = DA9063_M_GPI6,
+ },
+ [DA9063_IRQ_GPI7] = {
+ .reg_offset = DA9063_REG_EVENT_C_OFFSET,
+ .mask = DA9063_M_GPI7,
+ },
+ /* DA9063 event D register */
+ [DA9063_IRQ_GPI8] = {
+ .reg_offset = DA9063_REG_EVENT_D_OFFSET,
+ .mask = DA9063_M_GPI8,
+ },
+ [DA9063_IRQ_GPI9] = {
+ .reg_offset = DA9063_REG_EVENT_D_OFFSET,
+ .mask = DA9063_M_GPI9,
+ },
+ [DA9063_IRQ_GPI10] = {
+ .reg_offset = DA9063_REG_EVENT_D_OFFSET,
+ .mask = DA9063_M_GPI10,
+ },
+ [DA9063_IRQ_GPI11] = {
+ .reg_offset = DA9063_REG_EVENT_D_OFFSET,
+ .mask = DA9063_M_GPI11,
+ },
+ [DA9063_IRQ_GPI12] = {
+ .reg_offset = DA9063_REG_EVENT_D_OFFSET,
+ .mask = DA9063_M_GPI12,
+ },
+ [DA9063_IRQ_GPI13] = {
+ .reg_offset = DA9063_REG_EVENT_D_OFFSET,
+ .mask = DA9063_M_GPI13,
+ },
+ [DA9063_IRQ_GPI14] = {
+ .reg_offset = DA9063_REG_EVENT_D_OFFSET,
+ .mask = DA9063_M_GPI14,
+ },
+ [DA9063_IRQ_GPI15] = {
+ .reg_offset = DA9063_REG_EVENT_D_OFFSET,
+ .mask = DA9063_M_GPI15,
+ },
+};
+
+static struct regmap_irq_chip da9063_irq_chip = {
+ .name = "da9063-irq",
+ .irqs = da9063_irqs,
+ .num_irqs = DA9063_NUM_IRQ,
+
+ .num_regs = 4,
+ .status_base = DA9063_REG_EVENT_A,
+ .mask_base = DA9063_REG_IRQ_MASK_A,
+ .ack_base = DA9063_REG_EVENT_A,
+ .init_ack_masked = true,
+};
+
+int da9063_irq_init(struct da9063 *da9063)
+{
+ int ret;
+
+ if (!da9063->chip_irq) {
+ dev_err(da9063->dev, "No IRQ configured\n");
+ return -EINVAL;
+ }
+
+ ret = regmap_add_irq_chip(da9063->regmap, da9063->chip_irq,
+ IRQF_TRIGGER_LOW | IRQF_ONESHOT | IRQF_SHARED,
+ da9063->irq_base, &da9063_irq_chip,
+ &da9063->regmap_irq);
+ if (ret) {
+ dev_err(da9063->dev, "Failed to reguest IRQ %d: %d\n",
+ da9063->chip_irq, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+void da9063_irq_exit(struct da9063 *da9063)
+{
+ regmap_del_irq_chip(da9063->chip_irq, da9063->regmap_irq);
+}
diff --git a/include/linux/mfd/da9063/core.h b/include/linux/mfd/da9063/core.h
index ec2fd2a..2d2a0af 100644
--- a/include/linux/mfd/da9063/core.h
+++ b/include/linux/mfd/da9063/core.h
@@ -33,6 +33,41 @@ enum da9063_models {
PMIC_DA9063 = 0x61,
};
+/* Interrupts */
+enum da9063_irqs {
+ DA9063_IRQ_ONKEY = 0,
+ DA9063_IRQ_ALARM,
+ DA9063_IRQ_TICK,
+ DA9063_IRQ_ADC_RDY,
+ DA9063_IRQ_SEQ_RDY,
+ DA9063_IRQ_WAKE,
+ DA9063_IRQ_TEMP,
+ DA9063_IRQ_COMP_1V2,
+ DA9063_IRQ_LDO_LIM,
+ DA9063_IRQ_REG_UVOV,
+ DA9063_IRQ_VDD_MON,
+ DA9063_IRQ_WARN,
+ DA9063_IRQ_GPI0,
+ DA9063_IRQ_GPI1,
+ DA9063_IRQ_GPI2,
+ DA9063_IRQ_GPI3,
+ DA9063_IRQ_GPI4,
+ DA9063_IRQ_GPI5,
+ DA9063_IRQ_GPI6,
+ DA9063_IRQ_GPI7,
+ DA9063_IRQ_GPI8,
+ DA9063_IRQ_GPI9,
+ DA9063_IRQ_GPI10,
+ DA9063_IRQ_GPI11,
+ DA9063_IRQ_GPI12,
+ DA9063_IRQ_GPI13,
+ DA9063_IRQ_GPI14,
+ DA9063_IRQ_GPI15,
+};
+
+#define DA9063_IRQ_BASE_OFFSET 0
+#define DA9063_NUM_IRQ (DA9063_IRQ_GPI15 + 1 - DA9063_IRQ_BASE_OFFSET)
+
struct da9063 {
/* Device */
struct device *dev;
@@ -46,10 +81,13 @@ struct da9063 {
/* Interrupts */
int chip_irq;
unsigned int irq_base;
+ struct regmap_irq_chip_data *regmap_irq;
};
int da9063_device_init(struct da9063 *da9063, unsigned int irq);
+int da9063_irq_init(struct da9063 *da9063);
void da9063_device_exit(struct da9063 *da9063);
+void da9063_irq_exit(struct da9063 *da9063);
#endif /* __MFD_DA9063_CORE_H__ */
--
1.8.3.2
--
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