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irqchip/aspeed-scu: Replace update_bits with write_bits.

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commit 8958389681 upstream.

The interrupt status bits are cleared by writing 1, we should force a
write to clear the interrupt without checking if the value has changed.

Fixes: 04f605906f ("irqchip: Add Aspeed SCU interrupt controller")
Signed-off-by: Billy Tsai <billy_tsai@aspeedtech.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211124094348.11621-1-billy_tsai@aspeedtech.com
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Billy Tsai 2021-11-24 17:43:48 +08:00 committed by Greg Kroah-Hartman
parent e18f3e046c
commit f2675399eb
1 changed files with 2 additions and 2 deletions
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4
drivers/irqchip/irq-aspeed-scu-ic.c
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@ -76,8 +76,8 @@ static void aspeed_scu_ic_irq_handler(struct irq_desc *desc)
generic_handle_domain_irq(scu_ic->irq_domain,
bit - scu_ic->irq_shift);
regmap_update_bits(scu_ic->scu, scu_ic->reg, mask,
BIT(bit + ASPEED_SCU_IC_STATUS_SHIFT));
regmap_write_bits(scu_ic->scu, scu_ic->reg, mask,
BIT(bit + ASPEED_SCU_IC_STATUS_SHIFT));
}
chained_irq_exit(chip, desc);