This is a note to let you know that I've just added the patch titled
irqchip/aspeed-scu: Replace update_bits with write_bits.
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
irqchip-aspeed-scu-replace-update_bits-with-write_bits.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 8958389681b929fcc7301e7dc5f0da12e4a256a0 Mon Sep 17 00:00:00 2001
From: Billy Tsai <billy_tsai@xxxxxxxxxxxxxx>
Date: Wed, 24 Nov 2021 17:43:48 +0800
Subject: irqchip/aspeed-scu: Replace update_bits with write_bits.
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
@@ -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);
Patches currently in stable-queue which might be from billy_tsai@xxxxxxxxxxxxxx are
queue-5.15/hwmon-pwm-fan-ensure-the-fan-going-on-in-.probe.patch
queue-5.15/irqchip-aspeed-scu-replace-update_bits-with-write_bits.patch
