diff options
Diffstat (limited to 'drivers/pinctrl/qcom/pinctrl-spmi-gpio.c')
| -rw-r--r-- | drivers/pinctrl/qcom/pinctrl-spmi-gpio.c | 79 |
1 files changed, 67 insertions, 12 deletions
diff --git a/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c b/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c index ccaf40a9c0e6..8c31a8f6b7e4 100644 --- a/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c +++ b/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2012-2014, 2016-2021 The Linux Foundation. All rights reserved. + * Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved. */ #include <linux/gpio/driver.h> @@ -36,6 +37,8 @@ #define PMIC_GPIO_SUBTYPE_GPIOC_8CH 0xd #define PMIC_GPIO_SUBTYPE_GPIO_LV 0x10 #define PMIC_GPIO_SUBTYPE_GPIO_MV 0x11 +#define PMIC_GPIO_SUBTYPE_GPIO_LV_VIN2 0x12 +#define PMIC_GPIO_SUBTYPE_GPIO_MV_VIN3 0x13 #define PMIC_MPP_REG_RT_STS 0x10 #define PMIC_MPP_REG_RT_STS_VAL_MASK 0x1 @@ -98,6 +101,9 @@ #define PMIC_GPIO_OUT_BUF_OPEN_DRAIN_NMOS 1 #define PMIC_GPIO_OUT_BUF_OPEN_DRAIN_PMOS 2 +#define PMIC_GPIO_OUT_STRENGTH_LOW 1 +#define PMIC_GPIO_OUT_STRENGTH_HIGH 3 + /* PMIC_GPIO_REG_EN_CTL */ #define PMIC_GPIO_REG_MASTER_EN_SHIFT 7 @@ -171,7 +177,6 @@ struct pmic_gpio_state { struct regmap *map; struct pinctrl_dev *ctrl; struct gpio_chip chip; - struct irq_chip irq; u8 usid; u8 pid_base; }; @@ -437,7 +442,17 @@ static int pmic_gpio_config_get(struct pinctrl_dev *pctldev, arg = pad->pullup; break; case PMIC_GPIO_CONF_STRENGTH: - arg = pad->strength; + switch (pad->strength) { + case PMIC_GPIO_OUT_STRENGTH_HIGH: + arg = PMIC_GPIO_STRENGTH_HIGH; + break; + case PMIC_GPIO_OUT_STRENGTH_LOW: + arg = PMIC_GPIO_STRENGTH_LOW; + break; + default: + arg = pad->strength; + break; + } break; case PMIC_GPIO_CONF_ATEST: arg = pad->atest; @@ -524,7 +539,17 @@ static int pmic_gpio_config_set(struct pinctrl_dev *pctldev, unsigned int pin, case PMIC_GPIO_CONF_STRENGTH: if (arg > PMIC_GPIO_STRENGTH_LOW) return -EINVAL; - pad->strength = arg; + switch (arg) { + case PMIC_GPIO_STRENGTH_HIGH: + pad->strength = PMIC_GPIO_OUT_STRENGTH_HIGH; + break; + case PMIC_GPIO_STRENGTH_LOW: + pad->strength = PMIC_GPIO_OUT_STRENGTH_LOW; + break; + default: + pad->strength = arg; + break; + } break; case PMIC_GPIO_CONF_ATEST: if (!pad->lv_mv_type || arg > 4) @@ -823,6 +848,16 @@ static int pmic_gpio_populate(struct pmic_gpio_state *state, pad->have_buffer = true; pad->lv_mv_type = true; break; + case PMIC_GPIO_SUBTYPE_GPIO_LV_VIN2: + pad->num_sources = 2; + pad->have_buffer = true; + pad->lv_mv_type = true; + break; + case PMIC_GPIO_SUBTYPE_GPIO_MV_VIN3: + pad->num_sources = 3; + pad->have_buffer = true; + pad->lv_mv_type = true; + break; default: dev_err(state->dev, "unknown GPIO type 0x%x\n", subtype); return -ENODEV; @@ -985,6 +1020,33 @@ static int pmic_gpio_populate_parent_fwspec(struct gpio_chip *chip, return 0; } +static void pmic_gpio_irq_mask(struct irq_data *data) +{ + struct gpio_chip *gc = irq_data_get_irq_chip_data(data); + + irq_chip_mask_parent(data); + gpiochip_disable_irq(gc, data->hwirq); +} + +static void pmic_gpio_irq_unmask(struct irq_data *data) +{ + struct gpio_chip *gc = irq_data_get_irq_chip_data(data); + + gpiochip_enable_irq(gc, data->hwirq); + irq_chip_unmask_parent(data); +} + +static const struct irq_chip spmi_gpio_irq_chip = { + .name = "spmi-gpio", + .irq_ack = irq_chip_ack_parent, + .irq_mask = pmic_gpio_irq_mask, + .irq_unmask = pmic_gpio_irq_unmask, + .irq_set_type = irq_chip_set_type_parent, + .irq_set_wake = irq_chip_set_wake_parent, + .flags = IRQCHIP_IMMUTABLE | IRQCHIP_MASK_ON_SUSPEND, + GPIOCHIP_IRQ_RESOURCE_HELPERS, +}; + static int pmic_gpio_probe(struct platform_device *pdev) { struct irq_domain *parent_domain; @@ -1078,16 +1140,8 @@ static int pmic_gpio_probe(struct platform_device *pdev) if (!parent_domain) return -ENXIO; - state->irq.name = "spmi-gpio", - state->irq.irq_ack = irq_chip_ack_parent, - state->irq.irq_mask = irq_chip_mask_parent, - state->irq.irq_unmask = irq_chip_unmask_parent, - state->irq.irq_set_type = irq_chip_set_type_parent, - state->irq.irq_set_wake = irq_chip_set_wake_parent, - state->irq.flags = IRQCHIP_MASK_ON_SUSPEND, - girq = &state->chip.irq; - girq->chip = &state->irq; + gpio_irq_chip_set_chip(girq, &spmi_gpio_irq_chip); girq->default_type = IRQ_TYPE_NONE; girq->handler = handle_level_irq; girq->fwnode = of_node_to_fwnode(state->dev->of_node); @@ -1147,6 +1201,7 @@ static const struct of_device_id pmic_gpio_of_match[] = { { .compatible = "qcom,pm6150-gpio", .data = (void *) 10 }, { .compatible = "qcom,pm6150l-gpio", .data = (void *) 12 }, { .compatible = "qcom,pm6350-gpio", .data = (void *) 9 }, + { .compatible = "qcom,pm7250b-gpio", .data = (void *) 12 }, { .compatible = "qcom,pm7325-gpio", .data = (void *) 10 }, { .compatible = "qcom,pm8005-gpio", .data = (void *) 4 }, { .compatible = "qcom,pm8008-gpio", .data = (void *) 2 }, |