summaryrefslogtreecommitdiff
path: root/drivers/pinctrl
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/pinctrl')
-rw-r--r--drivers/pinctrl/qcom/pinctrl-ssbi-mpp.c111
1 files changed, 93 insertions, 18 deletions
diff --git a/drivers/pinctrl/qcom/pinctrl-ssbi-mpp.c b/drivers/pinctrl/qcom/pinctrl-ssbi-mpp.c
index a90cada1d657..842940594c4a 100644
--- a/drivers/pinctrl/qcom/pinctrl-ssbi-mpp.c
+++ b/drivers/pinctrl/qcom/pinctrl-ssbi-mpp.c
@@ -87,7 +87,6 @@
/**
* struct pm8xxx_pin_data - dynamic configuration for a pin
* @reg: address of the control register
- * @irq: IRQ from the PMIC interrupt controller
* @mode: operating mode for the pin (digital, analog or current sink)
* @input: pin is input
* @output: pin is output
@@ -103,7 +102,6 @@
*/
struct pm8xxx_pin_data {
unsigned reg;
- int irq;
u8 mode;
@@ -126,6 +124,7 @@ struct pm8xxx_mpp {
struct regmap *regmap;
struct pinctrl_dev *pctrl;
struct gpio_chip chip;
+ struct irq_chip irq;
struct pinctrl_desc desc;
unsigned npins;
@@ -148,6 +147,8 @@ static const struct pin_config_item pm8xxx_conf_items[] = {
#endif
#define PM8XXX_MAX_MPPS 12
+#define PM8XXX_MPP_PHYSICAL_OFFSET 1
+
static const char * const pm8xxx_groups[PM8XXX_MAX_MPPS] = {
"mpp1", "mpp2", "mpp3", "mpp4", "mpp5", "mpp6", "mpp7", "mpp8",
"mpp9", "mpp10", "mpp11", "mpp12",
@@ -492,12 +493,16 @@ static int pm8xxx_mpp_get(struct gpio_chip *chip, unsigned offset)
struct pm8xxx_mpp *pctrl = gpiochip_get_data(chip);
struct pm8xxx_pin_data *pin = pctrl->desc.pins[offset].drv_data;
bool state;
- int ret;
+ int ret, irq;
if (!pin->input)
return !!pin->output_value;
- ret = irq_get_irqchip_state(pin->irq, IRQCHIP_STATE_LINE_LEVEL, &state);
+ irq = chip->to_irq(chip, offset);
+ if (irq < 0)
+ return irq;
+
+ ret = irq_get_irqchip_state(irq, IRQCHIP_STATE_LINE_LEVEL, &state);
if (!ret)
ret = !!state;
@@ -524,18 +529,10 @@ static int pm8xxx_mpp_of_xlate(struct gpio_chip *chip,
if (flags)
*flags = gpio_desc->args[1];
- return gpio_desc->args[0] - 1;
+ return gpio_desc->args[0] - PM8XXX_MPP_PHYSICAL_OFFSET;
}
-static int pm8xxx_mpp_to_irq(struct gpio_chip *chip, unsigned offset)
-{
- struct pm8xxx_mpp *pctrl = gpiochip_get_data(chip);
- struct pm8xxx_pin_data *pin = pctrl->desc.pins[offset].drv_data;
-
- return pin->irq;
-}
-
#ifdef CONFIG_DEBUG_FS
#include <linux/seq_file.h>
@@ -558,7 +555,7 @@ static void pm8xxx_mpp_dbg_show_one(struct seq_file *s,
"abus3",
};
- seq_printf(s, " mpp%-2d:", offset + 1);
+ seq_printf(s, " mpp%-2d:", offset + PM8XXX_MPP_PHYSICAL_OFFSET);
switch (pin->mode) {
case PM8XXX_MPP_DIGITAL:
@@ -640,7 +637,6 @@ static const struct gpio_chip pm8xxx_mpp_template = {
.get = pm8xxx_mpp_get,
.set = pm8xxx_mpp_set,
.of_xlate = pm8xxx_mpp_of_xlate,
- .to_irq = pm8xxx_mpp_to_irq,
.dbg_show = pm8xxx_mpp_dbg_show,
.owner = THIS_MODULE,
};
@@ -732,6 +728,55 @@ static int pm8xxx_pin_populate(struct pm8xxx_mpp *pctrl,
return 0;
}
+static int pm8xxx_mpp_domain_translate(struct irq_domain *domain,
+ struct irq_fwspec *fwspec,
+ unsigned long *hwirq,
+ unsigned int *type)
+{
+ struct pm8xxx_mpp *pctrl = container_of(domain->host_data,
+ struct pm8xxx_mpp, chip);
+
+ if (fwspec->param_count != 2 ||
+ fwspec->param[0] < PM8XXX_MPP_PHYSICAL_OFFSET ||
+ fwspec->param[0] > pctrl->chip.ngpio)
+ return -EINVAL;
+
+ *hwirq = fwspec->param[0] - PM8XXX_MPP_PHYSICAL_OFFSET;
+ *type = fwspec->param[1];
+
+ return 0;
+}
+
+static unsigned int pm8xxx_mpp_child_offset_to_irq(struct gpio_chip *chip,
+ unsigned int offset)
+{
+ return offset + PM8XXX_MPP_PHYSICAL_OFFSET;
+}
+
+static int pm8821_mpp_child_to_parent_hwirq(struct gpio_chip *chip,
+ unsigned int child_hwirq,
+ unsigned int child_type,
+ unsigned int *parent_hwirq,
+ unsigned int *parent_type)
+{
+ *parent_hwirq = child_hwirq + 24;
+ *parent_type = child_type;
+
+ return 0;
+}
+
+static int pm8xxx_mpp_child_to_parent_hwirq(struct gpio_chip *chip,
+ unsigned int child_hwirq,
+ unsigned int child_type,
+ unsigned int *parent_hwirq,
+ unsigned int *parent_type)
+{
+ *parent_hwirq = child_hwirq + 0x80;
+ *parent_type = child_type;
+
+ return 0;
+}
+
static const struct of_device_id pm8xxx_mpp_of_match[] = {
{ .compatible = "qcom,pm8018-mpp", .data = (void *) 6 },
{ .compatible = "qcom,pm8038-mpp", .data = (void *) 6 },
@@ -746,7 +791,10 @@ MODULE_DEVICE_TABLE(of, pm8xxx_mpp_of_match);
static int pm8xxx_mpp_probe(struct platform_device *pdev)
{
struct pm8xxx_pin_data *pin_data;
+ struct irq_domain *parent_domain;
+ struct device_node *parent_node;
struct pinctrl_pin_desc *pins;
+ struct gpio_irq_chip *girq;
struct pm8xxx_mpp *pctrl;
int ret;
int i;
@@ -783,9 +831,6 @@ static int pm8xxx_mpp_probe(struct platform_device *pdev)
for (i = 0; i < pctrl->desc.npins; i++) {
pin_data[i].reg = SSBI_REG_ADDR_MPP(i);
- pin_data[i].irq = platform_get_irq(pdev, i);
- if (pin_data[i].irq < 0)
- return pin_data[i].irq;
ret = pm8xxx_pin_populate(pctrl, &pin_data[i]);
if (ret)
@@ -816,6 +861,36 @@ static int pm8xxx_mpp_probe(struct platform_device *pdev)
pctrl->chip.of_gpio_n_cells = 2;
pctrl->chip.label = dev_name(pctrl->dev);
pctrl->chip.ngpio = pctrl->npins;
+
+ parent_node = of_irq_find_parent(pctrl->dev->of_node);
+ if (!parent_node)
+ return -ENXIO;
+
+ parent_domain = irq_find_host(parent_node);
+ of_node_put(parent_node);
+ if (!parent_domain)
+ return -ENXIO;
+
+ pctrl->irq.name = "ssbi-mpp";
+ pctrl->irq.irq_mask_ack = irq_chip_mask_ack_parent;
+ pctrl->irq.irq_unmask = irq_chip_unmask_parent;
+ pctrl->irq.irq_set_type = irq_chip_set_type_parent;
+ pctrl->irq.flags = IRQCHIP_MASK_ON_SUSPEND | IRQCHIP_SKIP_SET_WAKE;
+
+ girq = &pctrl->chip.irq;
+ girq->chip = &pctrl->irq;
+ girq->default_type = IRQ_TYPE_NONE;
+ girq->handler = handle_level_irq;
+ girq->fwnode = of_node_to_fwnode(pctrl->dev->of_node);
+ girq->parent_domain = parent_domain;
+ if (of_device_is_compatible(pdev->dev.of_node, "qcom,pm8821-mpp"))
+ girq->child_to_parent_hwirq = pm8821_mpp_child_to_parent_hwirq;
+ else
+ girq->child_to_parent_hwirq = pm8xxx_mpp_child_to_parent_hwirq;
+ girq->populate_parent_alloc_arg = gpiochip_populate_parent_fwspec_twocell;
+ girq->child_offset_to_irq = pm8xxx_mpp_child_offset_to_irq;
+ girq->child_irq_domain_ops.translate = pm8xxx_mpp_domain_translate;
+
ret = gpiochip_add_data(&pctrl->chip, pctrl);
if (ret) {
dev_err(&pdev->dev, "failed register gpiochip\n");
generated by cgit v1.2.3 (git 2.39.0) at 2025-02-03 21:33:16 +0300