add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/mfd/da9062-core.c
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@@ -1,16 +1,7 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * Core, IRQ and I2C device driver for DA9061 and DA9062 PMICs
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  * Copyright (C) 2015-2017  Dialog Semiconductor
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- *
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- * This program is free software; you can redistribute it and/or
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- * modify it under the terms of the GNU General Public License
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- * as published by the Free Software Foundation; either version 2
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- * of the License, or (at your option) any later version.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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  */
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 #include <linux/kernel.h>
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@@ -29,6 +20,9 @@
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 #define	DA9062_REG_EVENT_A_OFFSET	0
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 #define	DA9062_REG_EVENT_B_OFFSET	1
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 #define	DA9062_REG_EVENT_C_OFFSET	2
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+
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+#define	DA9062_IRQ_LOW	0
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+#define	DA9062_IRQ_HIGH	1
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 static struct regmap_irq da9061_irqs[] = {
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 	/* EVENT A */
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@@ -242,6 +236,14 @@
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 	DEFINE_RES_NAMED(DA9062_IRQ_ONKEY, 1, "ONKEY", IORESOURCE_IRQ),
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 };
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+static struct resource da9062_gpio_resources[] = {
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+	DEFINE_RES_NAMED(DA9062_IRQ_GPI0, 1, "GPI0", IORESOURCE_IRQ),
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+	DEFINE_RES_NAMED(DA9062_IRQ_GPI1, 1, "GPI1", IORESOURCE_IRQ),
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+	DEFINE_RES_NAMED(DA9062_IRQ_GPI2, 1, "GPI2", IORESOURCE_IRQ),
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+	DEFINE_RES_NAMED(DA9062_IRQ_GPI3, 1, "GPI3", IORESOURCE_IRQ),
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+	DEFINE_RES_NAMED(DA9062_IRQ_GPI4, 1, "GPI4", IORESOURCE_IRQ),
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+};
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+
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 static const struct mfd_cell da9062_devs[] = {
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 	{
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 		.name		= "da9062-core",
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@@ -275,7 +277,13 @@
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 		.name		= "da9062-onkey",
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 		.num_resources	= ARRAY_SIZE(da9062_onkey_resources),
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 		.resources	= da9062_onkey_resources,
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-		.of_compatible = "dlg,da9062-onkey",
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+		.of_compatible	= "dlg,da9062-onkey",
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+	},
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+	{
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+		.name		= "da9062-gpio",
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+		.num_resources	= ARRAY_SIZE(da9062_gpio_resources),
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+		.resources	= da9062_gpio_resources,
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+		.of_compatible	= "dlg,da9062-gpio",
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 	},
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 };
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@@ -364,6 +372,33 @@
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 	return ret;
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 }
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+static u32 da9062_configure_irq_type(struct da9062 *chip, int irq, u32 *trigger)
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+{
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+	u32 irq_type = 0;
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+	struct irq_data *irq_data = irq_get_irq_data(irq);
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+
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+	if (!irq_data) {
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+		dev_err(chip->dev, "Invalid IRQ: %d\n", irq);
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+		return -EINVAL;
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+	}
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+	*trigger = irqd_get_trigger_type(irq_data);
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+
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+	switch (*trigger) {
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+	case IRQ_TYPE_LEVEL_HIGH:
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+		irq_type = DA9062_IRQ_HIGH;
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+		break;
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+	case IRQ_TYPE_LEVEL_LOW:
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+		irq_type = DA9062_IRQ_LOW;
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+		break;
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+	default:
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+		dev_warn(chip->dev, "Unsupported IRQ type: %d\n", *trigger);
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+		return -EINVAL;
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+	}
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+	return regmap_update_bits(chip->regmap, DA9062AA_CONFIG_A,
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+			DA9062AA_IRQ_TYPE_MASK,
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+			irq_type << DA9062AA_IRQ_TYPE_SHIFT);
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+}
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+
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 static const struct regmap_range da9061_aa_readable_ranges[] = {
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 	regmap_reg_range(DA9062AA_PAGE_CON, DA9062AA_STATUS_B),
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 	regmap_reg_range(DA9062AA_STATUS_D, DA9062AA_EVENT_C),
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@@ -383,6 +418,7 @@
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 	regmap_reg_range(DA9062AA_VBUCK1_A, DA9062AA_VBUCK4_A),
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 	regmap_reg_range(DA9062AA_VBUCK3_A, DA9062AA_VBUCK3_A),
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 	regmap_reg_range(DA9062AA_VLDO1_A, DA9062AA_VLDO4_A),
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+	regmap_reg_range(DA9062AA_CONFIG_A, DA9062AA_CONFIG_A),
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 	regmap_reg_range(DA9062AA_VBUCK1_B, DA9062AA_VBUCK4_B),
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 	regmap_reg_range(DA9062AA_VBUCK3_B, DA9062AA_VBUCK3_B),
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 	regmap_reg_range(DA9062AA_VLDO1_B, DA9062AA_VLDO4_B),
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@@ -412,6 +448,7 @@
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 	regmap_reg_range(DA9062AA_VBUCK1_A, DA9062AA_VBUCK4_A),
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 	regmap_reg_range(DA9062AA_VBUCK3_A, DA9062AA_VBUCK3_A),
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 	regmap_reg_range(DA9062AA_VLDO1_A, DA9062AA_VLDO4_A),
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+	regmap_reg_range(DA9062AA_CONFIG_A, DA9062AA_CONFIG_A),
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 	regmap_reg_range(DA9062AA_VBUCK1_B, DA9062AA_VBUCK4_B),
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 	regmap_reg_range(DA9062AA_VBUCK3_B, DA9062AA_VBUCK3_B),
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 	regmap_reg_range(DA9062AA_VLDO1_B, DA9062AA_VLDO4_B),
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@@ -591,6 +628,7 @@
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 	const struct regmap_irq_chip *irq_chip;
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 	const struct regmap_config *config;
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 	int cell_num;
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+	u32 trigger_type = 0;
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 	int ret;
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 	chip = devm_kzalloc(&i2c->dev, sizeof(*chip), GFP_KERNEL);
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@@ -649,10 +687,15 @@
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 	if (ret)
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 		return ret;
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+	ret = da9062_configure_irq_type(chip, i2c->irq, &trigger_type);
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+	if (ret < 0) {
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+		dev_err(chip->dev, "Failed to configure IRQ type\n");
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+		return ret;
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+	}
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+
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 	ret = regmap_add_irq_chip(chip->regmap, i2c->irq,
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-			IRQF_TRIGGER_LOW | IRQF_ONESHOT | IRQF_SHARED,
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-			-1, irq_chip,
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-			&chip->regmap_irq);
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+			trigger_type | IRQF_SHARED | IRQF_ONESHOT,
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+			-1, irq_chip, &chip->regmap_irq);
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 	if (ret) {
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 		dev_err(chip->dev, "Failed to request IRQ %d: %d\n",
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 			i2c->irq, ret);