| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.15 163/171] irqchip/aspeed-scu: Replace update_bits with write_bits. | Date | Mon, 13 Dec 2021 10:31:18 +0100 |
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From: Billy Tsai <billy_tsai@aspeedtech.com>
commit 8958389681b929fcc7301e7dc5f0da12e4a256a0 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: 04f605906ff0 ("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> --- drivers/irqchip/irq-aspeed-scu-ic.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/irqchip/irq-aspeed-scu-ic.c +++ b/drivers/irqchip/irq-aspeed-scu-ic.c @@ -76,8 +76,8 @@ static void aspeed_scu_ic_irq_handler(st 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);
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