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![Krystian Garbaciak](/assets/img/avatar_default.png)
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@diasemi.com> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by: Mark Brown <broonie@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
193 lines
4.6 KiB
C
193 lines
4.6 KiB
C
/* da9063-irq.c: Interrupts support for Dialog DA9063
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*
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* Copyright 2012 Dialog Semiconductor Ltd.
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* Copyright 2013 Philipp Zabel, Pengutronix
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*
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* Author: Michal Hajduk <michal.hajduk@diasemi.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/irq.h>
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#include <linux/mfd/core.h>
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#include <linux/interrupt.h>
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#include <linux/regmap.h>
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#include <linux/mfd/da9063/core.h>
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#include <linux/mfd/da9063/pdata.h>
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#define DA9063_REG_EVENT_A_OFFSET 0
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#define DA9063_REG_EVENT_B_OFFSET 1
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#define DA9063_REG_EVENT_C_OFFSET 2
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#define DA9063_REG_EVENT_D_OFFSET 3
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#define EVENTS_BUF_LEN 4
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static const u8 mask_events_buf[] = { [0 ... (EVENTS_BUF_LEN - 1)] = ~0 };
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struct da9063_irq_data {
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u16 reg;
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u8 mask;
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};
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static struct regmap_irq da9063_irqs[] = {
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/* DA9063 event A register */
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[DA9063_IRQ_ONKEY] = {
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.reg_offset = DA9063_REG_EVENT_A_OFFSET,
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.mask = DA9063_M_ONKEY,
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},
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[DA9063_IRQ_ALARM] = {
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.reg_offset = DA9063_REG_EVENT_A_OFFSET,
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.mask = DA9063_M_ALARM,
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},
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[DA9063_IRQ_TICK] = {
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.reg_offset = DA9063_REG_EVENT_A_OFFSET,
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.mask = DA9063_M_TICK,
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},
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[DA9063_IRQ_ADC_RDY] = {
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.reg_offset = DA9063_REG_EVENT_A_OFFSET,
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.mask = DA9063_M_ADC_RDY,
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},
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[DA9063_IRQ_SEQ_RDY] = {
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.reg_offset = DA9063_REG_EVENT_A_OFFSET,
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.mask = DA9063_M_SEQ_RDY,
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},
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/* DA9063 event B register */
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[DA9063_IRQ_WAKE] = {
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.reg_offset = DA9063_REG_EVENT_B_OFFSET,
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.mask = DA9063_M_WAKE,
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},
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[DA9063_IRQ_TEMP] = {
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.reg_offset = DA9063_REG_EVENT_B_OFFSET,
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.mask = DA9063_M_TEMP,
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},
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[DA9063_IRQ_COMP_1V2] = {
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.reg_offset = DA9063_REG_EVENT_B_OFFSET,
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.mask = DA9063_M_COMP_1V2,
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},
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[DA9063_IRQ_LDO_LIM] = {
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.reg_offset = DA9063_REG_EVENT_B_OFFSET,
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.mask = DA9063_M_LDO_LIM,
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},
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[DA9063_IRQ_REG_UVOV] = {
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.reg_offset = DA9063_REG_EVENT_B_OFFSET,
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.mask = DA9063_M_UVOV,
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},
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[DA9063_IRQ_VDD_MON] = {
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.reg_offset = DA9063_REG_EVENT_B_OFFSET,
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.mask = DA9063_M_VDD_MON,
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},
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[DA9063_IRQ_WARN] = {
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.reg_offset = DA9063_REG_EVENT_B_OFFSET,
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.mask = DA9063_M_VDD_WARN,
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},
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/* DA9063 event C register */
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[DA9063_IRQ_GPI0] = {
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.reg_offset = DA9063_REG_EVENT_C_OFFSET,
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.mask = DA9063_M_GPI0,
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},
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[DA9063_IRQ_GPI1] = {
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.reg_offset = DA9063_REG_EVENT_C_OFFSET,
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.mask = DA9063_M_GPI1,
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},
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[DA9063_IRQ_GPI2] = {
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.reg_offset = DA9063_REG_EVENT_C_OFFSET,
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.mask = DA9063_M_GPI2,
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},
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[DA9063_IRQ_GPI3] = {
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.reg_offset = DA9063_REG_EVENT_C_OFFSET,
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.mask = DA9063_M_GPI3,
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},
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[DA9063_IRQ_GPI4] = {
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.reg_offset = DA9063_REG_EVENT_C_OFFSET,
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.mask = DA9063_M_GPI4,
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},
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[DA9063_IRQ_GPI5] = {
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.reg_offset = DA9063_REG_EVENT_C_OFFSET,
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.mask = DA9063_M_GPI5,
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},
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[DA9063_IRQ_GPI6] = {
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.reg_offset = DA9063_REG_EVENT_C_OFFSET,
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.mask = DA9063_M_GPI6,
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},
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[DA9063_IRQ_GPI7] = {
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.reg_offset = DA9063_REG_EVENT_C_OFFSET,
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.mask = DA9063_M_GPI7,
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},
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/* DA9063 event D register */
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[DA9063_IRQ_GPI8] = {
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.reg_offset = DA9063_REG_EVENT_D_OFFSET,
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.mask = DA9063_M_GPI8,
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},
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[DA9063_IRQ_GPI9] = {
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.reg_offset = DA9063_REG_EVENT_D_OFFSET,
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.mask = DA9063_M_GPI9,
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},
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[DA9063_IRQ_GPI10] = {
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.reg_offset = DA9063_REG_EVENT_D_OFFSET,
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.mask = DA9063_M_GPI10,
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},
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[DA9063_IRQ_GPI11] = {
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.reg_offset = DA9063_REG_EVENT_D_OFFSET,
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.mask = DA9063_M_GPI11,
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},
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[DA9063_IRQ_GPI12] = {
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.reg_offset = DA9063_REG_EVENT_D_OFFSET,
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.mask = DA9063_M_GPI12,
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},
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[DA9063_IRQ_GPI13] = {
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.reg_offset = DA9063_REG_EVENT_D_OFFSET,
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.mask = DA9063_M_GPI13,
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},
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[DA9063_IRQ_GPI14] = {
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.reg_offset = DA9063_REG_EVENT_D_OFFSET,
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.mask = DA9063_M_GPI14,
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},
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[DA9063_IRQ_GPI15] = {
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.reg_offset = DA9063_REG_EVENT_D_OFFSET,
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.mask = DA9063_M_GPI15,
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},
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};
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static struct regmap_irq_chip da9063_irq_chip = {
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.name = "da9063-irq",
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.irqs = da9063_irqs,
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.num_irqs = DA9063_NUM_IRQ,
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.num_regs = 4,
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.status_base = DA9063_REG_EVENT_A,
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.mask_base = DA9063_REG_IRQ_MASK_A,
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.ack_base = DA9063_REG_EVENT_A,
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.init_ack_masked = true,
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};
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int da9063_irq_init(struct da9063 *da9063)
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{
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int ret;
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if (!da9063->chip_irq) {
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dev_err(da9063->dev, "No IRQ configured\n");
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return -EINVAL;
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}
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ret = regmap_add_irq_chip(da9063->regmap, da9063->chip_irq,
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IRQF_TRIGGER_LOW | IRQF_ONESHOT | IRQF_SHARED,
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da9063->irq_base, &da9063_irq_chip,
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&da9063->regmap_irq);
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if (ret) {
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dev_err(da9063->dev, "Failed to reguest IRQ %d: %d\n",
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da9063->chip_irq, ret);
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return ret;
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}
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return 0;
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}
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void da9063_irq_exit(struct da9063 *da9063)
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{
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regmap_del_irq_chip(da9063->chip_irq, da9063->regmap_irq);
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}
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