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Groups > linux.kernel > #1210403 > unrolled thread

[PATCH] mfd: jz4740-adc: Init mask cache in generic IRQ chip

Started byMatt Redfearn <matt.redfearn@imgtec.com>
First post2015-08-20 12:40 +0200
Last post2015-08-24 16:10 +0200
Articles 2 — 2 participants

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  [PATCH] mfd: jz4740-adc: Init mask cache in generic IRQ chip Matt Redfearn <matt.redfearn@imgtec.com> - 2015-08-20 12:40 +0200
    Re: [PATCH] mfd: jz4740-adc: Init mask cache in generic IRQ chip Lee Jones <lee.jones@linaro.org> - 2015-08-24 16:10 +0200

#1210403 — [PATCH] mfd: jz4740-adc: Init mask cache in generic IRQ chip

FromMatt Redfearn <matt.redfearn@imgtec.com>
Date2015-08-20 12:40 +0200
Subject[PATCH] mfd: jz4740-adc: Init mask cache in generic IRQ chip
Message-ID<pZvqi-2fu-17@gated-at.bofh.it>
The mask cache must be initialised in the generic IRQ chip,
otherwise enabling one channel will actually enable all
channels when the empty mask cache is written.

Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com>
---
 drivers/mfd/jz4740-adc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mfd/jz4740-adc.c b/drivers/mfd/jz4740-adc.c
index ae2ad8ad0e2f..e8699c0cdae6 100644
--- a/drivers/mfd/jz4740-adc.c
+++ b/drivers/mfd/jz4740-adc.c
@@ -276,7 +276,8 @@ static int jz4740_adc_probe(struct platform_device *pdev)
 	ct->chip.irq_unmask = irq_gc_mask_clr_bit;
 	ct->chip.irq_ack = irq_gc_ack_set_bit;
 
-	irq_setup_generic_chip(gc, IRQ_MSK(5), 0, 0, IRQ_NOPROBE | IRQ_LEVEL);
+	irq_setup_generic_chip(gc, IRQ_MSK(5), IRQ_GC_INIT_MASK_CACHE, 0,
+				IRQ_NOPROBE | IRQ_LEVEL);
 
 	adc->gc = gc;
 
-- 
2.1.4

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#1212221

FromLee Jones <lee.jones@linaro.org>
Date2015-08-24 16:10 +0200
Message-ID<q10BI-1vm-3@gated-at.bofh.it>
In reply to#1210403
On Thu, 20 Aug 2015, Matt Redfearn wrote:

> The mask cache must be initialised in the generic IRQ chip,
> otherwise enabling one channel will actually enable all
> channels when the empty mask cache is written.
> 
> Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com>
> ---
>  drivers/mfd/jz4740-adc.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)

Applied, thanks.

> diff --git a/drivers/mfd/jz4740-adc.c b/drivers/mfd/jz4740-adc.c
> index ae2ad8ad0e2f..e8699c0cdae6 100644
> --- a/drivers/mfd/jz4740-adc.c
> +++ b/drivers/mfd/jz4740-adc.c
> @@ -276,7 +276,8 @@ static int jz4740_adc_probe(struct platform_device *pdev)
>  	ct->chip.irq_unmask = irq_gc_mask_clr_bit;
>  	ct->chip.irq_ack = irq_gc_ack_set_bit;
>  
> -	irq_setup_generic_chip(gc, IRQ_MSK(5), 0, 0, IRQ_NOPROBE | IRQ_LEVEL);
> +	irq_setup_generic_chip(gc, IRQ_MSK(5), IRQ_GC_INIT_MASK_CACHE, 0,
> +				IRQ_NOPROBE | IRQ_LEVEL);
>  
>  	adc->gc = gc;
>  

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
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