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Merge tag 'pinctrl-v6.3-3' of git://git.kernel.org/pub/scm/linux/kern…
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…el/git/linusw/linux-pinctrl

Pull pin control fix from Linus Walleij:
 "This is just a revert of the AMD fix, because the fix broke some
  laptops. We are working on a proper solution"

* tag 'pinctrl-v6.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  Revert "pinctrl: amd: Disable and mask interrupts on resume"
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Linus Torvalds committed Apr 13, 2023
2 parents f1be7b6 + 534e465 commit 531f27a
Showing 1 changed file with 16 additions and 20 deletions.
36 changes: 16 additions & 20 deletions drivers/pinctrl/pinctrl-amd.c
Original file line number Diff line number Diff line change
Expand Up @@ -872,34 +872,32 @@ static const struct pinconf_ops amd_pinconf_ops = {
.pin_config_group_set = amd_pinconf_group_set,
};

static void amd_gpio_irq_init_pin(struct amd_gpio *gpio_dev, int pin)
static void amd_gpio_irq_init(struct amd_gpio *gpio_dev)
{
const struct pin_desc *pd;
struct pinctrl_desc *desc = gpio_dev->pctrl->desc;
unsigned long flags;
u32 pin_reg, mask;
int i;

mask = BIT(WAKE_CNTRL_OFF_S0I3) | BIT(WAKE_CNTRL_OFF_S3) |
BIT(INTERRUPT_MASK_OFF) | BIT(INTERRUPT_ENABLE_OFF) |
BIT(WAKE_CNTRL_OFF_S4);

pd = pin_desc_get(gpio_dev->pctrl, pin);
if (!pd)
return;
for (i = 0; i < desc->npins; i++) {
int pin = desc->pins[i].number;
const struct pin_desc *pd = pin_desc_get(gpio_dev->pctrl, pin);

raw_spin_lock_irqsave(&gpio_dev->lock, flags);
pin_reg = readl(gpio_dev->base + pin * 4);
pin_reg &= ~mask;
writel(pin_reg, gpio_dev->base + pin * 4);
raw_spin_unlock_irqrestore(&gpio_dev->lock, flags);
}
if (!pd)
continue;

static void amd_gpio_irq_init(struct amd_gpio *gpio_dev)
{
struct pinctrl_desc *desc = gpio_dev->pctrl->desc;
int i;
raw_spin_lock_irqsave(&gpio_dev->lock, flags);

for (i = 0; i < desc->npins; i++)
amd_gpio_irq_init_pin(gpio_dev, i);
pin_reg = readl(gpio_dev->base + i * 4);
pin_reg &= ~mask;
writel(pin_reg, gpio_dev->base + i * 4);

raw_spin_unlock_irqrestore(&gpio_dev->lock, flags);
}
}

#ifdef CONFIG_PM_SLEEP
Expand Down Expand Up @@ -952,10 +950,8 @@ static int amd_gpio_resume(struct device *dev)
for (i = 0; i < desc->npins; i++) {
int pin = desc->pins[i].number;

if (!amd_gpio_should_save(gpio_dev, pin)) {
amd_gpio_irq_init_pin(gpio_dev, pin);
if (!amd_gpio_should_save(gpio_dev, pin))
continue;
}

raw_spin_lock_irqsave(&gpio_dev->lock, flags);
gpio_dev->saved_regs[i] |= readl(gpio_dev->base + pin * 4) & PIN_IRQ_PENDING;
Expand Down

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