[PATCH 5.10 122/132] irqchip/aspeed-scu: Replace update_bits with write_bits.

[Greg Kroah-Hartman]

From: Billy Tsai <billy_tsai@xxxxxxxxxxxxxx>

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@xxxxxxxxxxxxxx>
Reviewed-by: Joel Stanley <joel@xxxxxxxxx>
Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20211124094348.11621-1-billy_tsai@xxxxxxxxxxxxxx
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 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
@@ -78,8 +78,8 @@ static void aspeed_scu_ic_irq_handler(st
 				       bit - scu_ic->irq_shift);
 		generic_handle_irq(irq);
 
-		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);