From: Billy Tsai <billy_tsai@aspeedtech.com> To: <eajames@linux.ibm.com>, <tglx@linutronix.de>, <maz@kernel.org>, <joel@jms.id.au>, <andrew@aj.id.au>, <linux-aspeed@lists.ozlabs.org>, <linux-kernel@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org> Cc: <BMC-SW@aspeedtech.com> Subject: [PATCH] irqchip: Replace update_bits with write_bits. Date: Wed, 24 Nov 2021 17:43:48 +0800 [thread overview] Message-ID: <20211124094348.11621-1-billy_tsai@aspeedtech.com> (raw) 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> --- drivers/irqchip/irq-aspeed-scu-ic.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/irqchip/irq-aspeed-scu-ic.c b/drivers/irqchip/irq-aspeed-scu-ic.c index f3c6855a4cef..18b77c3e6db4 100644 --- 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(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); -- 2.25.1
WARNING: multiple messages have this Message-ID (diff)
From: Billy Tsai <billy_tsai@aspeedtech.com> To: <eajames@linux.ibm.com>, <tglx@linutronix.de>, <maz@kernel.org>, <joel@jms.id.au>, <andrew@aj.id.au>, <linux-aspeed@lists.ozlabs.org>, <linux-kernel@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org> Cc: <BMC-SW@aspeedtech.com> Subject: [PATCH] irqchip: Replace update_bits with write_bits. Date: Wed, 24 Nov 2021 17:43:48 +0800 [thread overview] Message-ID: <20211124094348.11621-1-billy_tsai@aspeedtech.com> (raw) 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> --- drivers/irqchip/irq-aspeed-scu-ic.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/irqchip/irq-aspeed-scu-ic.c b/drivers/irqchip/irq-aspeed-scu-ic.c index f3c6855a4cef..18b77c3e6db4 100644 --- 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(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); -- 2.25.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply other threads:[~2021-11-24 9:43 UTC|newest] Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-11-24 9:43 Billy Tsai [this message] 2021-11-24 9:43 ` [PATCH] irqchip: Replace update_bits with write_bits Billy Tsai 2021-11-24 9:50 ` Joel Stanley 2021-11-24 9:50 ` Joel Stanley 2021-11-25 17:03 ` [irqchip: irq/irqchip-fixes] irqchip/aspeed-scu: " irqchip-bot for Billy Tsai
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