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gpio: kill off set_irq_flags usage

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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 modify IRQ_NOPROBE and this has been maintained although it
is not clear that is really needed as most platforms don't use probing.
There appears to be a great deal of blind copy and paste of this code.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Ray Jui <rjui@broadcom.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: linux-gpio@vger.kernel.org
Cc: bcm-kernel-feedback-list@broadcom.com
Cc: linux-tegra@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Rob Herring 2015-07-27 15:55:16 -05:00 committed by Linus Walleij
parent d705073cda
commit 23393d49fb
14 changed files with 10 additions and 57 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/gpio/gpio-adp5588.c
View File

@ -305,15 +305,7 @@ static int adp5588_irq_setup(struct adp5588_gpio *dev)
irq_set_chip_and_handler(irq, &adp5588_irq_chip,
handle_level_irq);
irq_set_nested_thread(irq, 1);
#ifdef CONFIG_ARM
/*
* ARM needs us to explicitly flag the IRQ as VALID,
* once we do so, it will also set the noprobe.
*/
set_irq_flags(irq, IRQF_VALID);
#else
irq_set_noprobe(irq);
#endif
irq_modify_status(irq, IRQ_NOREQUEST, IRQ_NOPROBE);
}
ret = request_threaded_irq(client->irq,

15
drivers/gpio/gpio-bcm-kona.c
View File

@ -525,11 +525,7 @@ static int bcm_kona_gpio_irq_map(struct irq_domain *d, unsigned int irq,
return ret;
irq_set_lockdep_class(irq, &gpio_lock_class);
irq_set_chip_and_handler(irq, &bcm_gpio_irq_chip, handle_simple_irq);
#ifdef CONFIG_ARM
set_irq_flags(irq, IRQF_VALID);
#else
irq_set_noprobe(irq);
#endif
return 0;
}
@ -644,17 +640,6 @@ static int bcm_kona_gpio_probe(struct platform_device *pdev)
dev_err(dev, "Couldn't add GPIO chip -- %d\n", ret);
goto err_irq_domain;
}
for (i = 0; i < chip->ngpio; i++) {
int irq = bcm_kona_gpio_to_irq(chip, i);
irq_set_lockdep_class(irq, &gpio_lock_class);
irq_set_chip_and_handler(irq, &bcm_gpio_irq_chip,
handle_simple_irq);
#ifdef CONFIG_ARM
set_irq_flags(irq, IRQF_VALID);
#else
irq_set_noprobe(irq);
#endif
}
for (i = 0; i < kona_gpio->num_bank; i++) {
bank = &kona_gpio->banks[i];
irq_set_chained_handler_and_data(bank->irq,

1
drivers/gpio/gpio-davinci.c
View File

@ -423,7 +423,6 @@ davinci_gpio_irq_map(struct irq_domain *d, unsigned int irq,
irq_set_irq_type(irq, IRQ_TYPE_NONE);
irq_set_chip_data(irq, (__force void *)g);
irq_set_handler_data(irq, (void *)__gpio_mask(hw));
set_irq_flags(irq, IRQF_VALID);
return 0;
}

1
drivers/gpio/gpio-em.c
View File

@ -261,7 +261,6 @@ static int em_gio_irq_domain_map(struct irq_domain *h, unsigned int irq,
irq_set_chip_data(irq, h->host_data);
irq_set_chip_and_handler(irq, &p->irq_chip, handle_level_irq);
set_irq_flags(irq, IRQF_VALID); /* kill me now */
return 0;
}

2
drivers/gpio/gpio-ep93xx.c
View File

@ -236,7 +236,7 @@ static void ep93xx_gpio_init_irq(void)
gpio_irq <= gpio_to_irq(EP93XX_GPIO_LINE_MAX_IRQ); ++gpio_irq) {
irq_set_chip_and_handler(gpio_irq, &ep93xx_gpio_irq_chip,
handle_level_irq);
set_irq_flags(gpio_irq, IRQF_VALID);
irq_clear_status_flags(gpio_irq, IRQ_NOREQUEST);
}
irq_set_chained_handler(IRQ_EP93XX_GPIO_AB,

8
drivers/gpio/gpio-grgpio.c
View File

@ -281,12 +281,7 @@ static int grgpio_irq_map(struct irq_domain *d, unsigned int irq,
irq_set_chip_data(irq, priv);
irq_set_chip_and_handler(irq, &grgpio_irq_chip,
handle_simple_irq);
irq_clear_status_flags(irq, IRQ_NOREQUEST);
#ifdef CONFIG_ARM
set_irq_flags(irq, IRQF_VALID);
#else
irq_set_noprobe(irq);
#endif
return ret;
}
@ -301,9 +296,6 @@ static void grgpio_irq_unmap(struct irq_domain *d, unsigned int irq)
int ngpio = priv->bgc.gc.ngpio;
int i;
#ifdef CONFIG_ARM
set_irq_flags(irq, 0);
#endif
irq_set_chip_and_handler(irq, NULL, NULL);
irq_set_chip_data(irq, NULL);

4
drivers/gpio/gpio-mcp23s08.c
View File

@ -507,11 +507,7 @@ static int mcp23s08_irq_setup(struct mcp23s08 *mcp)
irq_set_chip_data(irq, mcp);
irq_set_chip(irq, &mcp23s08_irq_chip);
irq_set_nested_thread(irq, true);
#ifdef CONFIG_ARM
set_irq_flags(irq, IRQF_VALID);
#else
irq_set_noprobe(irq);
#endif
}
return 0;
}

1
drivers/gpio/gpio-msm-v2.c
View File

@ -355,7 +355,6 @@ static int msm_gpio_irq_domain_map(struct irq_domain *d, unsigned int irq,
irq_set_lockdep_class(irq, &msm_gpio_lock_class);
irq_set_chip_and_handler(irq, &msm_gpio_irq_chip,
handle_level_irq);
set_irq_flags(irq, IRQF_VALID);
return 0;
}

8
drivers/gpio/gpio-pxa.c
View File

@ -524,7 +524,7 @@ static int pxa_irq_domain_map(struct irq_domain *d, unsigned int irq,
{
irq_set_chip_and_handler(irq, &pxa_muxed_gpio_chip,
handle_edge_irq);
set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
irq_set_noprobe(irq);
return 0;
}
@ -643,20 +643,20 @@ static int pxa_gpio_probe(struct platform_device *pdev)
irq = gpio_to_irq(0);
irq_set_chip_and_handler(irq, &pxa_muxed_gpio_chip,
handle_edge_irq);
set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
irq_clear_status_flags(irq, IRQ_NOREQUEST | IRQ_NOPROBE);
}
if (irq1 > 0) {
irq = gpio_to_irq(1);
irq_set_chip_and_handler(irq, &pxa_muxed_gpio_chip,
handle_edge_irq);
set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
irq_clear_status_flags(irq, IRQ_NOREQUEST | IRQ_NOPROBE);
}
for (irq = gpio_to_irq(gpio_offset);
irq <= gpio_to_irq(pxa_last_gpio); irq++) {
irq_set_chip_and_handler(irq, &pxa_muxed_gpio_chip,
handle_edge_irq);
set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
irq_clear_status_flags(irq, IRQ_NOREQUEST | IRQ_NOPROBE);
}
}

2
drivers/gpio/gpio-sa1100.c
View File

@ -155,7 +155,7 @@ static int sa1100_gpio_irqdomain_map(struct irq_domain *d,
{
irq_set_chip_and_handler(irq, &sa1100_gpio_irq_chip,
handle_edge_irq);
set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
irq_set_noprobe(irq);
return 0;
}

2
drivers/gpio/gpio-sta2x11.c
View File

@ -346,7 +346,7 @@ static void gsta_alloc_irq_chip(struct gsta_gpio *chip)
i = chip->irq_base + j;
irq_set_chip_and_handler(i, &ct->chip, ct->handler);
irq_set_chip_data(i, gc);
irq_modify_status(i, IRQ_NOREQUEST | IRQ_NOPROBE, 0);
irq_clear_status_flags(i, IRQ_NOREQUEST | IRQ_NOPROBE);
}
gc->irq_cnt = i - gc->irq_base;
}

1
drivers/gpio/gpio-tegra.c
View File

@ -507,7 +507,6 @@ static int tegra_gpio_probe(struct platform_device *pdev)
irq_set_chip_data(irq, bank);
irq_set_chip_and_handler(irq, &tegra_gpio_irq_chip,
handle_simple_irq);
set_irq_flags(irq, IRQF_VALID);
}
for (i = 0; i < tegra_gpio_bank_count; i++) {

4
drivers/gpio/gpio-timberdale.c
View File

@ -295,9 +295,7 @@ static int timbgpio_probe(struct platform_device *pdev)
irq_set_chip_and_handler(tgpio->irq_base + i,
&timbgpio_irqchip, handle_simple_irq);
irq_set_chip_data(tgpio->irq_base + i, tgpio);
#ifdef CONFIG_ARM
set_irq_flags(tgpio->irq_base + i, IRQF_VALID | IRQF_PROBE);
#endif
irq_clear_status_flags(tgpio->irq_base + i, IRQ_NOREQUEST | IRQ_NOPROBE);
}
irq_set_chained_handler_and_data(irq, timbgpio_irq, tgpio);

8
drivers/gpio/gpiolib.c
View File

@ -486,11 +486,8 @@ static int gpiochip_irq_map(struct irq_domain *d, unsigned int irq,
/* Chips that can sleep need nested thread handlers */
if (chip->can_sleep && !chip->irq_not_threaded)
irq_set_nested_thread(irq, 1);
#ifdef CONFIG_ARM
set_irq_flags(irq, IRQF_VALID);
#else
irq_set_noprobe(irq);
#endif
/*
* No set-up of the hardware will happen if IRQ_TYPE_NONE
* is passed as default type.
@ -505,9 +502,6 @@ static void gpiochip_irq_unmap(struct irq_domain *d, unsigned int irq)
{
struct gpio_chip *chip = d->host_data;
#ifdef CONFIG_ARM
set_irq_flags(irq, 0);
#endif
if (chip->can_sleep)
irq_set_nested_thread(irq, 0);
irq_set_chip_and_handler(irq, NULL, NULL);