// SPDX-License-Identifier: GPL-2.0 /* * Device driver for irqs in HISI PMIC IC * * Copyright (c) 2013 Linaro Ltd. * Copyright (c) 2011 Hisilicon. * Copyright (c) 2020-2021 Huawei Technologies Co., Ltd. */ #include <linux/bitops.h> #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/module.h> #include <linux/platform_device.h> #include <linux/slab.h> #include <linux/irqdomain.h> #include <linux/regmap.h> struct hi6421v600_irq { … }; enum hi6421v600_irq_list { … }; #define HISI_IRQ_BANK_SIZE … /* * IRQ number for the power key button and mask for both UP and DOWN IRQs */ #define HISI_POWERKEY_IRQ_NUM … #define HISI_IRQ_POWERKEY_UP_DOWN … /* * Registers for IRQ address and IRQ mask bits * * Please notice that we need to regmap a larger region, as other * registers are used by the irqs. * See drivers/irq/hi6421-irq.c. */ #define SOC_PMIC_IRQ_MASK_0_ADDR … #define SOC_PMIC_IRQ0_ADDR … /* * The IRQs are mapped as: * * ====================== ============= ============ ===== * IRQ MASK REGISTER IRQ REGISTER BIT * ====================== ============= ============ ===== * OTMP 0x0202 0x212 bit 0 * VBUS_CONNECT 0x0202 0x212 bit 1 * VBUS_DISCONNECT 0x0202 0x212 bit 2 * ALARMON_R 0x0202 0x212 bit 3 * HOLD_6S 0x0202 0x212 bit 4 * HOLD_1S 0x0202 0x212 bit 5 * POWERKEY_UP 0x0202 0x212 bit 6 * POWERKEY_DOWN 0x0202 0x212 bit 7 * * OCP_SCP_R 0x0203 0x213 bit 0 * COUL_R 0x0203 0x213 bit 1 * SIM0_HPD_R 0x0203 0x213 bit 2 * SIM0_HPD_F 0x0203 0x213 bit 3 * SIM1_HPD_R 0x0203 0x213 bit 4 * SIM1_HPD_F 0x0203 0x213 bit 5 * ====================== ============= ============ ===== * * Each mask register contains 8 bits. The ancillary macros below * convert a number from 0 to 14 into a register address and a bit mask */ #define HISI_IRQ_MASK_REG(irq_data) … #define HISI_IRQ_MASK_BIT(irq_data) … #define HISI_8BITS_MASK … static irqreturn_t hi6421v600_irq_handler(int irq, void *__priv) { … } static void hi6421v600_irq_mask(struct irq_data *d) { … } static void hi6421v600_irq_unmask(struct irq_data *d) { … } static struct irq_chip hi6421v600_pmu_irqchip = …; static int hi6421v600_irq_map(struct irq_domain *d, unsigned int virq, irq_hw_number_t hw) { … } static const struct irq_domain_ops hi6421v600_domain_ops = …; static void hi6421v600_irq_init(struct hi6421v600_irq *priv) { … } static int hi6421v600_irq_probe(struct platform_device *pdev) { … } static const struct platform_device_id hi6421v600_irq_table[] = …; MODULE_DEVICE_TABLE(platform, hi6421v600_irq_table); static struct platform_driver hi6421v600_irq_driver = …; module_platform_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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