From: wg@grandegger.com (Wolfgang Grandegger)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH RESEND 0/6 v10] gpio: Add block GPIO
Date: Fri, 14 Dec 2012 18:58:03 +0100 [thread overview]
Message-ID: <50CB68AB.5070806@grandegger.com> (raw)
In-Reply-To: <1355495185-24220-1-git-send-email-stigge@antcom.de>
On 12/14/2012 03:26 PM, Roland Stigge wrote:
> This set of patches adds:
>
> * Block GPIO API to gpiolib
> * Sysfs support for GPIO API, to provide userland access
> * Device interface for userland access (alternative to sysfs)
> * Devicetree support to instantiate GPIO blocks via DT
> * Example implementations in several gpio drivers since they need
> special accessor functions for block wise GPIO access
> * Fix for race condition in gpiolib on device creation
>
> Signed-off-by: Roland Stigge <stigge@antcom.de>
> Tested by: Wolfgang Grandegger <wg@grandegger.com>
I'm going to re-test this version next week. Attached you will find my
GPIO block adoptions for the AT91.
Wolfgang
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WARNING: multiple messages have this Message-ID (diff)
From: Wolfgang Grandegger <wg@grandegger.com>
To: Roland Stigge <stigge@antcom.de>
Cc: gregkh@linuxfoundation.org, grant.likely@secretlab.ca,
linus.walleij@linaro.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, w.sang@pengutronix.de,
jbe@pengutronix.de, plagnioj@jcrosoft.com, highguy@gmail.com,
broonie@opensource.wolfsonmicro.com, daniel-gl@gmx.net,
rmallon@gmail.com, sr@denx.de
Subject: Re: [PATCH RESEND 0/6 v10] gpio: Add block GPIO
Date: Fri, 14 Dec 2012 18:58:03 +0100 [thread overview]
Message-ID: <50CB68AB.5070806@grandegger.com> (raw)
In-Reply-To: <1355495185-24220-1-git-send-email-stigge@antcom.de>
[-- Attachment #1: Type: text/plain, Size: 693 bytes --]
On 12/14/2012 03:26 PM, Roland Stigge wrote:
> This set of patches adds:
>
> * Block GPIO API to gpiolib
> * Sysfs support for GPIO API, to provide userland access
> * Device interface for userland access (alternative to sysfs)
> * Devicetree support to instantiate GPIO blocks via DT
> * Example implementations in several gpio drivers since they need
> special accessor functions for block wise GPIO access
> * Fix for race condition in gpiolib on device creation
>
> Signed-off-by: Roland Stigge <stigge@antcom.de>
> Tested by: Wolfgang Grandegger <wg@grandegger.com>
I'm going to re-test this version next week. Attached you will find my
GPIO block adoptions for the AT91.
Wolfgang
[-- Attachment #2: 0001-gpio-add-GPIO-block-callback-functions-for-AT91.patch --]
[-- Type: text/x-diff, Size: 2721 bytes --]
>From 16c0e4b933dcdb3859184190b62655f4ac90949f Mon Sep 17 00:00:00 2001
From: Wolfgang Grandegger <wg@grandegger.com>
Date: Mon, 3 Dec 2012 08:31:55 +0100
Subject: [PATCH] gpio: add GPIO block callback functions for AT91
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
---
arch/arm/mach-at91/gpio.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/arch/arm/mach-at91/gpio.c b/arch/arm/mach-at91/gpio.c
index be42cf0..dd0853d 100644
--- a/arch/arm/mach-at91/gpio.c
+++ b/arch/arm/mach-at91/gpio.c
@@ -48,7 +48,9 @@ struct at91_gpio_chip {
static void at91_gpiolib_dbg_show(struct seq_file *s, struct gpio_chip *chip);
static void at91_gpiolib_set(struct gpio_chip *chip, unsigned offset, int val);
+static void at91_gpiolib_set_block(struct gpio_chip *chip, unsigned long mask, unsigned long val);
static int at91_gpiolib_get(struct gpio_chip *chip, unsigned offset);
+static unsigned long at91_gpiolib_get_block(struct gpio_chip *chip, unsigned long mask);
static int at91_gpiolib_direction_output(struct gpio_chip *chip,
unsigned offset, int val);
static int at91_gpiolib_direction_input(struct gpio_chip *chip,
@@ -62,7 +64,9 @@ static int at91_gpiolib_to_irq(struct gpio_chip *chip, unsigned offset);
.direction_input = at91_gpiolib_direction_input, \
.direction_output = at91_gpiolib_direction_output, \
.get = at91_gpiolib_get, \
+ .get_block = at91_gpiolib_get_block, \
.set = at91_gpiolib_set, \
+ .set_block = at91_gpiolib_set_block, \
.dbg_show = at91_gpiolib_dbg_show, \
.to_irq = at91_gpiolib_to_irq, \
.ngpio = nr_gpio, \
@@ -896,6 +900,16 @@ static int at91_gpiolib_get(struct gpio_chip *chip, unsigned offset)
return (pdsr & mask) != 0;
}
+static unsigned long at91_gpiolib_get_block(struct gpio_chip *chip, unsigned long mask)
+{
+ struct at91_gpio_chip *at91_gpio = to_at91_gpio_chip(chip);
+ void __iomem *pio = at91_gpio->regbase;
+ u32 pdsr;
+
+ pdsr = __raw_readl(pio + PIO_PDSR);
+ return pdsr & mask;
+}
+
static void at91_gpiolib_set(struct gpio_chip *chip, unsigned offset, int val)
{
struct at91_gpio_chip *at91_gpio = to_at91_gpio_chip(chip);
@@ -905,6 +919,14 @@ static void at91_gpiolib_set(struct gpio_chip *chip, unsigned offset, int val)
__raw_writel(mask, pio + (val ? PIO_SODR : PIO_CODR));
}
+static void at91_gpiolib_set_block(struct gpio_chip *chip, unsigned long mask, unsigned long val)
+{
+ struct at91_gpio_chip *at91_gpio = to_at91_gpio_chip(chip);
+ void __iomem *pio = at91_gpio->regbase;
+
+ __raw_writel(mask, pio + (val ? PIO_SODR : PIO_CODR));
+}
+
static void at91_gpiolib_dbg_show(struct seq_file *s, struct gpio_chip *chip)
{
int i;
--
1.7.9.5
next prev parent reply other threads:[~2012-12-14 17:58 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-14 14:26 [PATCH RESEND 0/6 v10] gpio: Add block GPIO Roland Stigge
2012-12-14 14:26 ` Roland Stigge
2012-12-14 14:26 ` [PATCH RESEND 1/6 v10] gpio: Add a block GPIO API to gpiolib Roland Stigge
2012-12-14 14:26 ` Roland Stigge
2012-12-14 14:26 ` [PATCH RESEND 2/6 v10] gpio: Add sysfs support to block GPIO API Roland Stigge
2012-12-14 14:26 ` Roland Stigge
2012-12-14 14:26 ` [PATCH RESEND 3/6 v10] gpio: Add userland device interface to block GPIO Roland Stigge
2012-12-14 14:26 ` Roland Stigge
2012-12-14 14:26 ` [PATCH RESEND 4/6 v10] gpiolib: Fix default attributes for class Roland Stigge
2012-12-14 14:26 ` Roland Stigge
2012-12-14 14:26 ` [PATCH RESEND 5/6 v10] gpio: Add device tree support to block GPIO API Roland Stigge
2012-12-14 14:26 ` Roland Stigge
2012-12-17 15:51 ` Mark Rutland
2012-12-17 15:51 ` Mark Rutland
2012-12-18 14:30 ` Roland Stigge
2012-12-18 14:30 ` Roland Stigge
2012-12-18 16:35 ` Mark Rutland
2012-12-18 16:35 ` Mark Rutland
2012-12-14 14:26 ` [PATCH RESEND 6/6 v10] gpio: Add block gpio to several gpio drivers Roland Stigge
2012-12-14 14:26 ` Roland Stigge
2012-12-14 17:58 ` Wolfgang Grandegger [this message]
2012-12-14 17:58 ` [PATCH RESEND 0/6 v10] gpio: Add block GPIO Wolfgang Grandegger
2012-12-14 23:49 ` Roland Stigge
2012-12-14 23:49 ` Roland Stigge
2012-12-15 10:51 ` Russell King - ARM Linux
2012-12-15 10:51 ` Russell King - ARM Linux
2012-12-17 11:37 ` Wolfgang Grandegger
2012-12-17 11:37 ` Wolfgang Grandegger
2012-12-17 11:51 ` Wolfgang Grandegger
2012-12-17 11:51 ` Wolfgang Grandegger
2012-12-17 12:10 ` Russell King - ARM Linux
2012-12-17 12:10 ` Russell King - ARM Linux
2012-12-17 14:57 ` Wolfgang Grandegger
2012-12-17 14:57 ` Wolfgang Grandegger
2012-12-17 13:32 ` Roland Stigge
2012-12-17 13:32 ` Roland Stigge
2012-12-17 13:51 ` Roland Stigge
2012-12-17 13:51 ` Roland Stigge
2012-12-17 16:28 ` Wolfgang Grandegger
2012-12-17 16:28 ` Wolfgang Grandegger
2012-12-17 17:15 ` Roland Stigge
2012-12-17 17:15 ` Roland Stigge
2012-12-17 17:37 ` Wolfgang Grandegger
2012-12-17 17:37 ` Wolfgang Grandegger
2012-12-17 18:02 ` Roland Stigge
2012-12-17 18:02 ` Roland Stigge
2012-12-17 19:47 ` Wolfgang Grandegger
2012-12-17 19:47 ` Wolfgang Grandegger
2012-12-17 21:33 ` Roland Stigge
2012-12-17 21:33 ` Roland Stigge
2012-12-18 6:51 ` Wolfgang Grandegger
2012-12-18 6:51 ` Wolfgang Grandegger
2012-12-18 5:55 ` Jean-Christophe PLAGNIOL-VILLARD
2012-12-18 5:55 ` Jean-Christophe PLAGNIOL-VILLARD
2012-12-18 6:58 ` Wolfgang Grandegger
2012-12-18 6:58 ` Wolfgang Grandegger
2012-12-18 7:54 ` Jean-Christophe PLAGNIOL-VILLARD
2012-12-18 7:54 ` Jean-Christophe PLAGNIOL-VILLARD
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