From: Shobhit Kumar <shobhit.kumar@intel.com>
To: intel-gfx <intel-gfx@lists.freedesktop.org>,
linux-kernel <linux-kernel@vger.kernel.org>,
linux-gpio <linux-gpio@vger.kernel.org>,
linux-pwm <linux-pwm@vger.kernel.org>,
dri-devel <dri-devel@lists.freedesktop.org>
Cc: Linus Walleij <linus.walleij@linaro.org>,
Alexandre Courbot <gnurou@gmail.com>,
Daniel Vetter <daniel.vetter@intel.com>,
David Airlie <airlied@linux.ie>,
Samuel Ortiz <sameo@linux.intel.com>,
Thierry Reding <thierry.reding@gmail.com>,
Jani Nikula <jani.nikula@intel.com>,
Lee Jones <lee.jones@linaro.org>,
Povilas Staniulis <wdmonster@gmail.com>,
Chih-Wei Huang <cwhuang@android-x86.org>,
Shobhit Kumar <shobhit.kumar@intel.com>
Subject: [PATCH 1/8] gpiolib: Add support for removing registered consumer lookup table
Date: Tue, 5 May 2015 15:02:48 +0530 [thread overview]
Message-ID: <1430818368-26790-1-git-send-email-shobhit.kumar@intel.com> (raw)
In-Reply-To: <1430316005-16480-2-git-send-email-shobhit.kumar@intel.com>
In case we unload and load a driver module again that is registering a
lookup table, without this it will result in multiple entries. Provide
an option to remove the lookup table on driver unload
v2: Ccing maintainers
v3: Correct the subject line (Lee jones)
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com>
---
drivers/gpio/gpiolib.c | 13 +++++++++++++
include/linux/gpio/machine.h | 1 +
2 files changed, 14 insertions(+)
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 59eaa23..2420af9 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -1658,6 +1658,19 @@ void gpiod_add_lookup_table(struct gpiod_lookup_table *table)
mutex_unlock(&gpio_lookup_lock);
}
+/**
+ * gpiod_remove_lookup_table() - unregister GPIO device consumers
+ * @table: table of consumers to unregister
+ */
+void gpiod_remove_lookup_table(struct gpiod_lookup_table *table)
+{
+ mutex_lock(&gpio_lookup_lock);
+
+ list_del(&table->list);
+
+ mutex_unlock(&gpio_lookup_lock);
+}
+
static struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id,
unsigned int idx,
enum gpio_lookup_flags *flags)
diff --git a/include/linux/gpio/machine.h b/include/linux/gpio/machine.h
index e270614..c0d712d 100644
--- a/include/linux/gpio/machine.h
+++ b/include/linux/gpio/machine.h
@@ -57,5 +57,6 @@ struct gpiod_lookup_table {
}
void gpiod_add_lookup_table(struct gpiod_lookup_table *table);
+void gpiod_remove_lookup_table(struct gpiod_lookup_table *table);
#endif /* __LINUX_GPIO_MACHINE_H */
--
2.1.0
next prev parent reply other threads:[~2015-05-05 9:33 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-29 13:59 [PATCH 0/8] Crystalcove (CRC) PMIC based panel and pwm control Shobhit Kumar
2015-04-29 13:59 ` [PATCH 1/8] drivers/gpio/gpiolib: Add support for removing registered consumer lookup table Shobhit Kumar
2015-05-05 9:32 ` Shobhit Kumar [this message]
2015-05-05 10:45 ` [PATCH 1/8] gpiolib: " Lee Jones
2015-05-05 15:44 ` [Intel-gfx] " Daniel Vetter
2015-05-07 7:25 ` Lee Jones
2015-05-06 14:49 ` [PATCH 1/8] drivers/gpio/gpiolib: " Linus Walleij
2015-05-06 15:09 ` [Intel-gfx] " Daniel Vetter
2015-05-12 8:52 ` Linus Walleij
2015-04-29 13:59 ` [PATCH 2/8] drivers/pwm/core: Add support to remove registered consumer lookup tables Shobhit Kumar
2015-05-05 9:34 ` [PATCH 2/8] pwm: core: " Shobhit Kumar
2015-05-06 12:21 ` Thierry Reding
2015-04-29 14:00 ` [PATCH 3/8] drivers/mfd: Add lookup table for Panel Control as GPIO signal Shobhit Kumar
2015-04-29 14:27 ` Lee Jones
2015-04-30 7:17 ` Shobhit Kumar
2015-04-29 14:29 ` Lee Jones
2015-05-05 9:36 ` [PATCH 3/8] mfd: intel_soc_pmic_core: " Shobhit Kumar
2015-05-12 9:14 ` Linus Walleij
2015-05-06 14:51 ` [PATCH 3/8] drivers/mfd: " Linus Walleij
2015-04-29 14:00 ` [PATCH 4/8] drivers/mfd: Add PWM cell device for Crystalcove PMIC Shobhit Kumar
2015-04-29 14:25 ` Lee Jones
2015-05-05 9:36 ` [PATCH 4/8] mfd: intel_soc_pmic_crc: " Shobhit Kumar
2015-04-29 14:00 ` [PATCH 5/8] drivers/mfd: ADD PWM lookup table for CRC PMIC based PWM Shobhit Kumar
2015-04-29 14:24 ` Lee Jones
2015-05-05 9:48 ` Shobhit Kumar
2015-05-05 10:42 ` Lee Jones
2015-05-05 9:38 ` [PATCH 5/8] mfd: intel_soc_pmic_core: " Shobhit Kumar
2015-04-29 14:00 ` [PATCH 6/8] drivers/pwm: Add Crystalcove (CRC) PWM driver Shobhit Kumar
2015-04-30 21:12 ` Paul Bolle
2015-06-18 17:54 ` [Intel-gfx] " Shobhit Kumar
2015-06-18 18:41 ` Paul Bolle
2015-06-19 6:46 ` Shobhit Kumar
2015-06-20 11:23 ` Paul Bolle
2015-06-20 18:04 ` Paul Gortmaker
2015-06-22 7:55 ` Shobhit Kumar
2015-05-05 9:38 ` [PATCH 6/8] pwm: crc: " Shobhit Kumar
2015-05-06 7:40 ` Paul Bolle
2015-05-07 7:13 ` [Intel-gfx] " Shobhit Kumar
2015-05-06 12:14 ` Thierry Reding
2015-05-07 7:19 ` [Intel-gfx] " Shobhit Kumar
2015-05-20 15:09 ` Shobhit Kumar
2015-06-17 2:43 ` Shobhit Kumar
2015-04-29 14:00 ` [PATCH 7/8] drm/i915: Use the CRC gpio for panel enable/disable Shobhit Kumar
2015-05-06 13:11 ` Jani Nikula
2015-05-06 14:08 ` [Intel-gfx] " Daniel Vetter
2015-05-12 11:10 ` Linus Walleij
2015-04-29 14:00 ` [PATCH 8/8] drm/i915: Backlight control using CRC PMIC based PWM driver Shobhit Kumar
2015-05-06 13:39 ` Jani Nikula
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