From: Grygorii Strashko <grygorii.strashko@ti.com> To: Vignesh Raghavendra <vigneshr@ti.com>, Linus Walleij <linus.walleij@linaro.org>, Bartosz Golaszewski <bgolaszewski@baylibre.com> Cc: <linux-gpio@vger.kernel.org>, <linux-omap@vger.kernel.org>, <linux-kernel@vger.kernel.org> Subject: Re: [PATCH] gpio: pca953x: Read irq trigger type from DT Date: Thu, 5 Dec 2019 17:01:14 +0200 [thread overview] Message-ID: <5837a37d-479d-5c33-45b5-c1b32b0cdc52@ti.com> (raw) In-Reply-To: <20191205144508.31339-1-vigneshr@ti.com> On 05/12/2019 16:45, Vignesh Raghavendra wrote: > Instead of hardcoding irq trigger type to IRQF_TRIGGER_LOW, let's > respect settings specified in DT. Default to IRQF_TRIGGER_LOW, > if DT does not provide a flag. > > Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> > --- > drivers/gpio/gpio-pca953x.c | 9 +++++++-- > 1 file changed, 7 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c > index 6652bee01966..e0e2a77ef6ad 100644 > --- a/drivers/gpio/gpio-pca953x.c > +++ b/drivers/gpio/gpio-pca953x.c > @@ -744,6 +744,7 @@ static int pca953x_irq_setup(struct pca953x_chip *chip, int irq_base) > struct irq_chip *irq_chip = &chip->irq_chip; > DECLARE_BITMAP(reg_direction, MAX_LINE); > DECLARE_BITMAP(irq_stat, MAX_LINE); > + unsigned long irqflags; > int ret; > > if (!client->irq) > @@ -768,10 +769,14 @@ static int pca953x_irq_setup(struct pca953x_chip *chip, int irq_base) > bitmap_and(chip->irq_stat, irq_stat, reg_direction, chip->gpio_chip.ngpio); > mutex_init(&chip->irq_lock); > > + irqflags = irq_get_trigger_type(client->irq); > + if (irqflags == IRQF_TRIGGER_NONE) > + irqflags = IRQF_TRIGGER_LOW; I think you can just drop IRQF_TRIGGER_LOW: - for paltform code it will be set from resources in platform_get_irq_optional() - for DT code it will be set in __setup_irq() > + irqflags |= IRQF_ONESHOT | IRQF_SHARED; > + > ret = devm_request_threaded_irq(&client->dev, client->irq, > NULL, pca953x_irq_handler, > - IRQF_TRIGGER_LOW | IRQF_ONESHOT | > - IRQF_SHARED, > + irqflags, > dev_name(&client->dev), chip); > if (ret) { > dev_err(&client->dev, "failed to request irq %d\n", > -- Best regards, grygorii
WARNING: multiple messages have this Message-ID (diff)
From: Grygorii Strashko <grygorii.strashko@ti.com> To: Vignesh Raghavendra <vigneshr@ti.com>, Linus Walleij <linus.walleij@linaro.org>, Bartosz Golaszewski <bgolaszewski@baylibre.com> Cc: linux-gpio@vger.kernel.org, linux-omap@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] gpio: pca953x: Read irq trigger type from DT Date: Thu, 5 Dec 2019 17:01:14 +0200 [thread overview] Message-ID: <5837a37d-479d-5c33-45b5-c1b32b0cdc52@ti.com> (raw) In-Reply-To: <20191205144508.31339-1-vigneshr@ti.com> On 05/12/2019 16:45, Vignesh Raghavendra wrote: > Instead of hardcoding irq trigger type to IRQF_TRIGGER_LOW, let's > respect settings specified in DT. Default to IRQF_TRIGGER_LOW, > if DT does not provide a flag. > > Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> > --- > drivers/gpio/gpio-pca953x.c | 9 +++++++-- > 1 file changed, 7 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c > index 6652bee01966..e0e2a77ef6ad 100644 > --- a/drivers/gpio/gpio-pca953x.c > +++ b/drivers/gpio/gpio-pca953x.c > @@ -744,6 +744,7 @@ static int pca953x_irq_setup(struct pca953x_chip *chip, int irq_base) > struct irq_chip *irq_chip = &chip->irq_chip; > DECLARE_BITMAP(reg_direction, MAX_LINE); > DECLARE_BITMAP(irq_stat, MAX_LINE); > + unsigned long irqflags; > int ret; > > if (!client->irq) > @@ -768,10 +769,14 @@ static int pca953x_irq_setup(struct pca953x_chip *chip, int irq_base) > bitmap_and(chip->irq_stat, irq_stat, reg_direction, chip->gpio_chip.ngpio); > mutex_init(&chip->irq_lock); > > + irqflags = irq_get_trigger_type(client->irq); > + if (irqflags == IRQF_TRIGGER_NONE) > + irqflags = IRQF_TRIGGER_LOW; I think you can just drop IRQF_TRIGGER_LOW: - for paltform code it will be set from resources in platform_get_irq_optional() - for DT code it will be set in __setup_irq() > + irqflags |= IRQF_ONESHOT | IRQF_SHARED; > + > ret = devm_request_threaded_irq(&client->dev, client->irq, > NULL, pca953x_irq_handler, > - IRQF_TRIGGER_LOW | IRQF_ONESHOT | > - IRQF_SHARED, > + irqflags, > dev_name(&client->dev), chip); > if (ret) { > dev_err(&client->dev, "failed to request irq %d\n", > -- Best regards, grygorii
next prev parent reply other threads:[~2019-12-05 15:01 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-12-05 14:45 [PATCH] gpio: pca953x: Read irq trigger type from DT Vignesh Raghavendra 2019-12-05 14:45 ` Vignesh Raghavendra 2019-12-05 15:01 ` Grygorii Strashko [this message] 2019-12-05 15:01 ` Grygorii Strashko 2019-12-09 5:15 ` Vignesh Raghavendra 2019-12-09 5:15 ` Vignesh Raghavendra
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