From: Nicolas Ferre <nicolas.ferre@atmel.com> To: Jean-Jacques Hiblot <jjhiblot@traphandler.com>, <b.brezillon@overkiz.com>, Linus Walleij <linus.walleij@linaro.org> Cc: <plagnioj@jcrosoft.com>, <linux-kernel@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org>, <gregory.clement@free-electrons.com> Subject: Re: [PATCH v4 2/8] at91: pinctrl: don't request GPIOs used for interrupts but lock them as IRQ Date: Wed, 12 Feb 2014 18:47:16 +0100 [thread overview] Message-ID: <52FBB3A4.8020706@atmel.com> (raw) In-Reply-To: <1392199607-27452-3-git-send-email-jjhiblot@traphandler.com> On 12/02/2014 11:06, Jean-Jacques Hiblot : > During the xlate stage of the DT interrupt parsing, the at91 pinctrl driver > requests the GPIOs that are described as interrupt sources. This prevents a > driver to request the gpio later to get its electrical value. > This patch replaces the gpio_request with a gpio_lock_as_irq to prevent the > gpio to be set as an ouput while allowing a subsequent gpio_request to succeed > > Signed-off-by: Jean-Jacques Hiblot <jjhiblot@traphandler.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> But I suspect it may go through another patch: the pinctrl one: add Linux W. to the recipient list please. Thanks, > --- > drivers/pinctrl/pinctrl-at91.c | 5 ++--- > 1 file changed, 2 insertions(+), 3 deletions(-) > > diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c > index d990e33..db55b96 100644 > --- a/drivers/pinctrl/pinctrl-at91.c > +++ b/drivers/pinctrl/pinctrl-at91.c > @@ -1478,18 +1478,17 @@ static int at91_gpio_irq_domain_xlate(struct irq_domain *d, > { > struct at91_gpio_chip *at91_gpio = d->host_data; > int ret; > - int pin = at91_gpio->chip.base + intspec[0]; > > if (WARN_ON(intsize < 2)) > return -EINVAL; > *out_hwirq = intspec[0]; > *out_type = intspec[1] & IRQ_TYPE_SENSE_MASK; > > - ret = gpio_request(pin, ctrlr->full_name); > + ret = gpio_lock_as_irq(&at91_gpio->chip, intspec[0]); > if (ret) > return ret; > > - ret = gpio_direction_input(pin); > + ret = at91_gpio_direction_input(&at91_gpio->chip, intspec[0]); > if (ret) > return ret; > > -- Nicolas Ferre
WARNING: multiple messages have this Message-ID (diff)
From: nicolas.ferre@atmel.com (Nicolas Ferre) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v4 2/8] at91: pinctrl: don't request GPIOs used for interrupts but lock them as IRQ Date: Wed, 12 Feb 2014 18:47:16 +0100 [thread overview] Message-ID: <52FBB3A4.8020706@atmel.com> (raw) In-Reply-To: <1392199607-27452-3-git-send-email-jjhiblot@traphandler.com> On 12/02/2014 11:06, Jean-Jacques Hiblot : > During the xlate stage of the DT interrupt parsing, the at91 pinctrl driver > requests the GPIOs that are described as interrupt sources. This prevents a > driver to request the gpio later to get its electrical value. > This patch replaces the gpio_request with a gpio_lock_as_irq to prevent the > gpio to be set as an ouput while allowing a subsequent gpio_request to succeed > > Signed-off-by: Jean-Jacques Hiblot <jjhiblot@traphandler.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> But I suspect it may go through another patch: the pinctrl one: add Linux W. to the recipient list please. Thanks, > --- > drivers/pinctrl/pinctrl-at91.c | 5 ++--- > 1 file changed, 2 insertions(+), 3 deletions(-) > > diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c > index d990e33..db55b96 100644 > --- a/drivers/pinctrl/pinctrl-at91.c > +++ b/drivers/pinctrl/pinctrl-at91.c > @@ -1478,18 +1478,17 @@ static int at91_gpio_irq_domain_xlate(struct irq_domain *d, > { > struct at91_gpio_chip *at91_gpio = d->host_data; > int ret; > - int pin = at91_gpio->chip.base + intspec[0]; > > if (WARN_ON(intsize < 2)) > return -EINVAL; > *out_hwirq = intspec[0]; > *out_type = intspec[1] & IRQ_TYPE_SENSE_MASK; > > - ret = gpio_request(pin, ctrlr->full_name); > + ret = gpio_lock_as_irq(&at91_gpio->chip, intspec[0]); > if (ret) > return ret; > > - ret = gpio_direction_input(pin); > + ret = at91_gpio_direction_input(&at91_gpio->chip, intspec[0]); > if (ret) > return ret; > > -- Nicolas Ferre
next prev parent reply other threads:[~2014-02-12 17:47 UTC|newest] Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top 2014-02-12 10:06 [PATCH v4 0/8] Device Tree support for the at91sam9261ek Jean-Jacques Hiblot 2014-02-12 10:06 ` Jean-Jacques Hiblot 2014-02-12 10:06 ` [PATCH v4 1/8] at91: dt: Adds support for the bus matrix declaration in the DT Jean-Jacques Hiblot 2014-02-12 10:06 ` Jean-Jacques Hiblot 2014-02-12 10:45 ` Gregory CLEMENT 2014-02-12 10:45 ` Gregory CLEMENT 2014-02-12 10:54 ` Nicolas Ferre 2014-02-12 10:54 ` Nicolas Ferre 2014-02-12 10:06 ` [PATCH v4 2/8] at91: pinctrl: don't request GPIOs used for interrupts but lock them as IRQ Jean-Jacques Hiblot 2014-02-12 10:06 ` Jean-Jacques Hiblot 2014-02-12 17:47 ` Nicolas Ferre [this message] 2014-02-12 17:47 ` Nicolas Ferre 2014-02-24 13:25 ` Linus Walleij 2014-02-24 13:25 ` Linus Walleij 2014-02-25 9:35 ` Jean-Jacques Hiblot 2014-02-25 9:35 ` Jean-Jacques Hiblot 2014-02-25 9:47 ` Jean-Jacques Hiblot 2014-02-25 9:47 ` Jean-Jacques Hiblot 2014-02-12 10:06 ` [PATCH v4 3/8] at91: dt: Add at91sam9261 dt SoC support Jean-Jacques Hiblot 2014-02-12 10:06 ` Jean-Jacques Hiblot 2014-02-12 17:28 ` Alexandre Belloni 2014-02-12 17:28 ` Alexandre Belloni 2014-02-12 19:47 ` Jean-Jacques Hiblot 2014-02-12 19:47 ` Jean-Jacques Hiblot 2014-02-13 8:10 ` Nicolas Ferre 2014-02-13 8:10 ` Nicolas Ferre 2014-02-13 8:54 ` Alexandre Belloni 2014-02-13 8:54 ` Alexandre Belloni 2014-02-12 21:04 ` Alexandre Belloni 2014-02-12 21:04 ` Alexandre Belloni 2014-02-13 6:11 ` Jean-Jacques Hiblot 2014-02-13 6:11 ` Jean-Jacques Hiblot 2014-02-12 10:06 ` [PATCH v4 4/8] at91: dt: defconfig: Added the sam9261 to the list of DT-enabled SOCs Jean-Jacques Hiblot 2014-02-12 10:06 ` Jean-Jacques Hiblot 2014-02-12 10:06 ` [PATCH v4 5/8] at91: dt: sam9261: Device Tree support for the at91sam9261ek Jean-Jacques Hiblot 2014-02-12 10:06 ` Jean-Jacques Hiblot 2014-02-12 10:06 ` [PATCH v4 6/8] at91: updated the at91_dt_defconfig with support for the ADS7846 Jean-Jacques Hiblot 2014-02-12 10:06 ` Jean-Jacques Hiblot 2014-02-12 10:06 ` [PATCH v4 7/8] ARM: at91: prepare common clk transition for sam9261 SoC Jean-Jacques Hiblot 2014-02-12 10:06 ` Jean-Jacques Hiblot 2014-02-12 10:06 ` [PATCH v4 8/8] ARM: at91: move sam9261 SoC to common clk Jean-Jacques Hiblot 2014-02-12 10:06 ` Jean-Jacques Hiblot 2014-02-12 11:14 ` [PATCH v4 0/8] Device Tree support for the at91sam9261ek Gregory CLEMENT 2014-02-12 11:14 ` Gregory CLEMENT 2014-02-12 12:34 ` Thomas Petazzoni 2014-02-12 12:34 ` Thomas Petazzoni 2014-02-12 12:36 ` Jean-Jacques Hiblot 2014-02-12 12:36 ` Jean-Jacques Hiblot 2014-02-12 12:44 ` Thomas Petazzoni 2014-02-12 12:44 ` Thomas Petazzoni 2014-02-12 13:01 ` Jean-Jacques Hiblot 2014-02-12 13:01 ` Jean-Jacques Hiblot 2014-02-12 12:35 ` Jean-Jacques Hiblot 2014-02-12 12:35 ` Jean-Jacques Hiblot
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