From: Boris Brezillon <boris.brezillon@free-electrons.com>
To: Milo Kim <milo.kim@ti.com>
Cc: <tglx@linutronix.de>, <jason@lakedaemon.net>,
<marc.zyngier@arm.com>, <alexandre.belloni@free-electrons.com>,
<ludovic.desroches@atmel.com>, <nicolas.ferre@atmel.com>,
<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 01/19] irqchip: atmel-aic: fix wrong bit operation for IRQ priority
Date: Mon, 4 Jan 2016 09:11:31 +0100 [thread overview]
Message-ID: <20160104091131.214e1542@bbrezillon> (raw)
In-Reply-To: <1451881723-2478-2-git-send-email-milo.kim@ti.com>
Hi Milo,
On Mon, 4 Jan 2016 13:28:25 +0900
Milo Kim <milo.kim@ti.com> wrote:
> Atmel AIC has common structure for SMR (Source Mode Register).
>
> bit[6:5] Interrupt source type
> bit[2:0] Priority level
> Other bits are unused.
>
> To update new priority value, bit[2:0] should be cleared first and then
> new priority level can be written. However, aic_common_set_priority()
> helper clears source type bits instead of priority bits.
> This patch fixes wrong mask bit operation.
>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Jason Cooper <jason@lakedaemon.net>
> Cc: Marc Zyngier <marc.zyngier@arm.com>
> Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>
> Cc: Boris BREZILLON <boris.brezillon@free-electrons.com>
> Cc: Ludovic Desroches <ludovic.desroches@atmel.com>
> Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
> Cc: linux-kernel@vger.kernel.org
> Signed-off-by: Milo Kim <milo.kim@ti.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Can you also add
Fixes: b1479ebb7720 ("irqchip: atmel-aic: Add atmel AIC/AIC5 drivers")
Cc: stable@vger.kernel.org #v3.17+
Thanks,
Boris
> ---
> drivers/irqchip/irq-atmel-aic-common.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/irqchip/irq-atmel-aic-common.c b/drivers/irqchip/irq-atmel-aic-common.c
> index b12a5d5..37199b9 100644
> --- a/drivers/irqchip/irq-atmel-aic-common.c
> +++ b/drivers/irqchip/irq-atmel-aic-common.c
> @@ -86,7 +86,7 @@ int aic_common_set_priority(int priority, unsigned *val)
> priority > AT91_AIC_IRQ_MAX_PRIORITY)
> return -EINVAL;
>
> - *val &= AT91_AIC_PRIOR;
> + *val &= ~AT91_AIC_PRIOR;
> *val |= priority;
>
> return 0;
--
Boris Brezillon, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
next prev parent reply other threads:[~2016-01-04 8:11 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-04 4:28 [PATCH 00/19] irqchip: atmel-aic: make unified AIC driver Milo Kim
2016-01-04 4:28 ` [PATCH 01/19] irqchip: atmel-aic: fix wrong bit operation for IRQ priority Milo Kim
2016-01-04 8:11 ` Boris Brezillon [this message]
2016-01-04 4:28 ` [PATCH 02/19] irqchip: atmel-aic: clean up RTC interrupt code Milo Kim
2016-01-04 8:16 ` Boris Brezillon
2016-01-04 4:28 ` [PATCH 03/19] irqchip: atmel-aic: clean up RTT " Milo Kim
2016-01-04 8:17 ` Boris Brezillon
2016-01-04 4:28 ` [PATCH 04/19] irqchip: atmel-aic: replace magic numbers with named constant Milo Kim
2016-01-04 8:29 ` Boris Brezillon
2016-01-04 4:28 ` [PATCH 05/19] irqchip: atmel-aic: use simple constant to get number of interrupts per chip Milo Kim
2016-01-04 8:33 ` Boris Brezillon
2016-01-04 4:28 ` [PATCH 06/19] irqchip: atmel-aic: introduce register data structure Milo Kim
2016-01-04 8:53 ` Boris Brezillon
2016-01-06 8:30 ` Milo Kim
2016-01-04 4:28 ` [PATCH 07/19] irqchip: atmel-aic: make common IRQ domain translate function Milo Kim
2016-01-04 4:28 ` [PATCH 08/19] irqchip: atmel-aic: add common mask and unmask functions Milo Kim
2016-01-04 8:48 ` Boris Brezillon
2016-01-04 4:28 ` [PATCH 09/19] irqchip: atmel-aic: add common retrigger function Milo Kim
2016-01-04 4:28 ` [PATCH 10/19] irqchip: atmel-aic: add common set_type function Milo Kim
2016-01-04 4:28 ` [PATCH 11/19] irqchip: atmel-aic: add common PM IRQ chip operation Milo Kim
2016-01-04 4:28 ` [PATCH 12/19] irqchip: atmel-aic: use EOI register data in aic_reg_data Milo Kim
2016-01-04 4:28 ` [PATCH 13/19] irqchip: atmel-aic: clean up irq_chip_generic Milo Kim
2016-01-04 4:28 ` [PATCH 14/19] irqchip: atmel-aic: add common HW init function Milo Kim
2016-01-04 4:28 ` [PATCH 15/19] irqchip: atmel-aic: add common interrupt handler Milo Kim
2016-01-04 4:28 ` [PATCH 16/19] irqchip: atmel-aic: get total number of IRQs from device node Milo Kim
2016-01-04 4:28 ` [PATCH 17/19] irqchip: atmel-aic: use unified IRQ chip initialization function Milo Kim
2016-01-04 4:28 ` [PATCH 18/19] irqchip: atmel-aic: use unified AIC driver Milo Kim
2016-01-04 4:28 ` [PATCH 19/19] irqchip: atmel-aic: rename AIC driver and fix Kconfig Milo Kim
2016-01-04 9:02 ` [PATCH 00/19] irqchip: atmel-aic: make unified AIC driver Boris Brezillon
2016-01-04 9:37 ` Nicolas Ferre
2016-01-06 7:55 ` Milo Kim
2016-01-06 7:48 ` Milo Kim
2016-01-06 9:07 ` Boris Brezillon
2016-01-06 14:49 ` Jason Cooper
2016-01-07 7:48 ` Milo Kim
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