[PATCH 03/15] clk: kill off set_irq_flags usage

[PATCH 03/15] clk: kill off set_irq_flags usage

[Rob Herring]

set_irq_flags is ARM specific with custom flags which have genirq
equivalents. Convert drivers to use the genirq interfaces directly, so we
can kill off set_irq_flags. The translation of flags is as follows:

IRQF_VALID -> !IRQ_NOREQUEST
IRQF_PROBE -> !IRQ_NOPROBE
IRQF_NOAUTOEN -> IRQ_NOAUTOEN

For IRQs managed by an irqdomain, the irqdomain core code handles clearing
and setting IRQ_NOREQUEST already, so there is no need to do this in
.map() functions and we can simply remove the set_irq_flags calls. Some
users also set IRQ_NOPROBE and this has been maintained although it is not
clear that is really needed. There appears to be a great deal of blind
copy and paste of this code.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: linux-clk@vger.kernel.org
---
 drivers/clk/at91/pmc.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/clk/at91/pmc.c b/drivers/clk/at91/pmc.c
index 3f27d21..828b196 100644
--- a/drivers/clk/at91/pmc.c
+++ b/drivers/clk/at91/pmc.c
@@ -125,7 +125,6 @@ static int pmc_irq_map(struct irq_domain *h, unsigned int virq,
 
 	irq_set_chip_and_handler(virq, &pmc_irq,
 				 handle_level_irq);
-	set_irq_flags(virq, IRQF_VALID);
 	irq_set_chip_data(virq, pmc);
 
 	return 0;
-- 
2.1.0

Re: [PATCH 03/15] clk: kill off set_irq_flags usage

[Boris Brezillon]

On Tue,  9 Jun 2015 13:26:29 -0500
Rob Herring <robh@kernel.org> wrote:

> set_irq_flags is ARM specific with custom flags which have genirq
> equivalents. Convert drivers to use the genirq interfaces directly, so we
> can kill off set_irq_flags. The translation of flags is as follows:
> 
> IRQF_VALID -> !IRQ_NOREQUEST
> IRQF_PROBE -> !IRQ_NOPROBE
> IRQF_NOAUTOEN -> IRQ_NOAUTOEN
> 
> For IRQs managed by an irqdomain, the irqdomain core code handles clearing
> and setting IRQ_NOREQUEST already, so there is no need to do this in
> .map() functions and we can simply remove the set_irq_flags calls. Some
> users also set IRQ_NOPROBE and this has been maintained although it is not
> clear that is really needed. There appears to be a great deal of blind
> copy and paste of this code.
> 
> Signed-off-by: Rob Herring <robh@kernel.org>

Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>

> Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
> Cc: Mike Turquette <mturquette@linaro.org>
> Cc: Stephen Boyd <sboyd@codeaurora.org>
> Cc: linux-clk@vger.kernel.org
> ---
>  drivers/clk/at91/pmc.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/drivers/clk/at91/pmc.c b/drivers/clk/at91/pmc.c
> index 3f27d21..828b196 100644
> --- a/drivers/clk/at91/pmc.c
> +++ b/drivers/clk/at91/pmc.c
> @@ -125,7 +125,6 @@ static int pmc_irq_map(struct irq_domain *h, unsigned int virq,
>  
>  	irq_set_chip_and_handler(virq, &pmc_irq,
>  				 handle_level_irq);
> -	set_irq_flags(virq, IRQF_VALID);
>  	irq_set_chip_data(virq, pmc);
>  
>  	return 0;



-- 
Boris Brezillon, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

Re: [PATCH 03/15] clk: kill off set_irq_flags usage

[Stephen Boyd]

On 06/09, Rob Herring wrote:
> set_irq_flags is ARM specific with custom flags which have genirq
> equivalents. Convert drivers to use the genirq interfaces directly, so we
> can kill off set_irq_flags. The translation of flags is as follows:
> 
> IRQF_VALID -> !IRQ_NOREQUEST
> IRQF_PROBE -> !IRQ_NOPROBE
> IRQF_NOAUTOEN -> IRQ_NOAUTOEN
> 
> For IRQs managed by an irqdomain, the irqdomain core code handles clearing
> and setting IRQ_NOREQUEST already, so there is no need to do this in
> .map() functions and we can simply remove the set_irq_flags calls. Some
> users also set IRQ_NOPROBE and this has been maintained although it is not
> clear that is really needed. There appears to be a great deal of blind
> copy and paste of this code.
> 
> Signed-off-by: Rob Herring <robh@kernel.org>
> Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
> Cc: Mike Turquette <mturquette@linaro.org>
> Cc: Stephen Boyd <sboyd@codeaurora.org>
> Cc: linux-clk@vger.kernel.org
> ---

Acked-by: Stephen Boyd <sboyd@codeaurora.org>

-- 
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a Linux Foundation Collaborative Project