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pinctrl: intel: Add GPIO <-> pin mapping ranges via callback

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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.

Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
This commit is contained in:
Linus Walleij 2020-01-09 08:53:28 +01:00 committed by Andy Shevchenko
parent e2b74419e5
commit 6d416b9bb5
1 changed files with 22 additions and 13 deletions
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35
drivers/pinctrl/intel/pinctrl-intel.c
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@ -1130,8 +1130,8 @@ static irqreturn_t intel_gpio_irq(int irq, void *data)
return ret;
}
static int intel_gpio_add_pin_ranges(struct intel_pinctrl *pctrl,
const struct intel_community *community)
static int intel_gpio_add_community_ranges(struct intel_pinctrl *pctrl,
const struct intel_community *community)
{
int ret = 0, i;
@ -1151,6 +1151,24 @@ static int intel_gpio_add_pin_ranges(struct intel_pinctrl *pctrl,
return ret;
}
static int intel_gpio_add_pin_ranges(struct gpio_chip *gc)
{
struct intel_pinctrl *pctrl = gpiochip_get_data(gc);
int ret, i;
for (i = 0; i < pctrl->ncommunities; i++) {
struct intel_community *community = &pctrl->communities[i];
ret = intel_gpio_add_community_ranges(pctrl, community);
if (ret) {
dev_err(pctrl->dev, "failed to add GPIO pin range\n");
return ret;
}
}
return 0;
}
static unsigned int intel_gpio_ngpio(const struct intel_pinctrl *pctrl)
{
const struct intel_community *community;
@ -1175,7 +1193,7 @@ static unsigned int intel_gpio_ngpio(const struct intel_pinctrl *pctrl)
static int intel_gpio_probe(struct intel_pinctrl *pctrl, int irq)
{
int ret, i;
int ret;
pctrl->chip = intel_gpio_chip;
@ -1184,6 +1202,7 @@ static int intel_gpio_probe(struct intel_pinctrl *pctrl, int irq)
pctrl->chip.label = dev_name(pctrl->dev);
pctrl->chip.parent = pctrl->dev;
pctrl->chip.base = -1;
pctrl->chip.add_pin_ranges = intel_gpio_add_pin_ranges;
pctrl->irq = irq;
/* Setup IRQ chip */
@ -1201,16 +1220,6 @@ static int intel_gpio_probe(struct intel_pinctrl *pctrl, int irq)
return ret;
}
for (i = 0; i < pctrl->ncommunities; i++) {
struct intel_community *community = &pctrl->communities[i];
ret = intel_gpio_add_pin_ranges(pctrl, community);
if (ret) {
dev_err(pctrl->dev, "failed to add GPIO pin range\n");
return ret;
}
}
/*
* We need to request the interrupt here (instead of providing chip
* to the irq directly) because on some platforms several GPIO