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gpio: pcie-idio-24: Fix IRQ Enable Register value

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commit 23a7fdc06ebcc334fa667f0550676b035510b70b upstream.

This fixes the COS Enable Register value for enabling/disabling the
corresponding IRQs bank.

Fixes: 5855620466 ("gpio: Add GPIO support for the ACCES PCIe-IDIO-24 family")
Cc: [email protected]
Signed-off-by: Arnaud de Turckheim <[email protected]>
Reviewed-by: William Breathitt Gray <[email protected]>
Signed-off-by: Bartosz Golaszewski <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Arnaud de Turckheim 2020-11-04 16:24:54 +01:00 • committed by Greg Kroah-Hartman
commit 7b6790ae3a
1 changed files with 4 additions and 4 deletions
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8
drivers/gpio/gpio-pcie-idio-24.c
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@ -360,13 +360,13 @@ static void idio_24_irq_mask(struct irq_data *data)
unsigned long flags;
const unsigned long bit_offset = irqd_to_hwirq(data) - 24;
unsigned char new_irq_mask;
const unsigned long bank_offset = bit_offset/8 * 8;
const unsigned long bank_offset = bit_offset / 8;
unsigned char cos_enable_state;
raw_spin_lock_irqsave(&idio24gpio->lock, flags);
idio24gpio->irq_mask &= ~BIT(bit_offset);
new_irq_mask = idio24gpio->irq_mask >> bank_offset;
new_irq_mask = idio24gpio->irq_mask >> bank_offset * 8;
if (!new_irq_mask) {
cos_enable_state = ioread8(&idio24gpio->reg->cos_enable);
@ -389,12 +389,12 @@ static void idio_24_irq_unmask(struct irq_data *data)
unsigned long flags;
unsigned char prev_irq_mask;
const unsigned long bit_offset = irqd_to_hwirq(data) - 24;
const unsigned long bank_offset = bit_offset/8 * 8;
const unsigned long bank_offset = bit_offset / 8;
unsigned char cos_enable_state;
raw_spin_lock_irqsave(&idio24gpio->lock, flags);
prev_irq_mask = idio24gpio->irq_mask >> bank_offset;
prev_irq_mask = idio24gpio->irq_mask >> bank_offset * 8;
idio24gpio->irq_mask |= BIT(bit_offset);
if (!prev_irq_mask) {