[v3,2/3] pinctrl: cherryview: Add GPIO <-> pin mapping ranges via callback
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Message ID 20191113190520.305410-2-hdegoede@redhat.com
State New
Headers show
Series
  • [v3,1/3] pinctrl: cherryview: Split out irq hw-init into a separate helper function
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Commit Message

Hans de Goede Nov. 13, 2019, 7:05 p.m. UTC
When IRQ chip is instantiated via GPIO library flow, the few functions,
in particular the ACPI event registration mechanism, on some of ACPI based
platforms expect that the pin ranges are initialized to that point.

Add GPIO <-> pin mapping ranges via callback in the GPIO library flow.

Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 drivers/pinctrl/intel/pinctrl-cherryview.c | 33 ++++++++++++++--------
 1 file changed, 22 insertions(+), 11 deletions(-)

Patch
diff mbox series

diff --git a/drivers/pinctrl/intel/pinctrl-cherryview.c b/drivers/pinctrl/intel/pinctrl-cherryview.c
index 3c6c6d69d92d..dd7d48614b7b 100644
--- a/drivers/pinctrl/intel/pinctrl-cherryview.c
+++ b/drivers/pinctrl/intel/pinctrl-cherryview.c
@@ -1581,6 +1581,27 @@  static int chv_gpio_irq_init_hw(struct gpio_chip *chip)
 	return 0;
 }
 
+static int chv_gpio_add_pin_ranges(struct gpio_chip *chip)
+{
+	struct chv_pinctrl *pctrl = gpiochip_get_data(chip);
+	const struct chv_community *community = pctrl->community;
+	const struct chv_gpio_pinrange *range;
+	int ret, i;
+
+	for (i = 0; i < community->ngpio_ranges; i++) {
+		range = &community->gpio_ranges[i];
+		ret = gpiochip_add_pin_range(chip, dev_name(pctrl->dev),
+					     range->base, range->base,
+					     range->npins);
+		if (ret) {
+			dev_err(pctrl->dev, "failed to add GPIO pin range\n");
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
 static int chv_gpio_probe(struct chv_pinctrl *pctrl, int irq)
 {
 	const struct chv_gpio_pinrange *range;
@@ -1593,6 +1614,7 @@  static int chv_gpio_probe(struct chv_pinctrl *pctrl, int irq)
 
 	chip->ngpio = community->pins[community->npins - 1].number + 1;
 	chip->label = dev_name(pctrl->dev);
+	chip->add_pin_ranges = chv_gpio_add_pin_ranges;
 	chip->parent = pctrl->dev;
 	chip->base = -1;
 	if (need_valid_mask)
@@ -1604,17 +1626,6 @@  static int chv_gpio_probe(struct chv_pinctrl *pctrl, int irq)
 		return ret;
 	}
 
-	for (i = 0; i < community->ngpio_ranges; i++) {
-		range = &community->gpio_ranges[i];
-		ret = gpiochip_add_pin_range(chip, dev_name(pctrl->dev),
-					     range->base, range->base,
-					     range->npins);
-		if (ret) {
-			dev_err(pctrl->dev, "failed to add GPIO pin range\n");
-			return ret;
-		}
-	}
-
 	chv_gpio_irq_init_hw(chip);
 
 	if (!need_valid_mask) {