From: Shobhit Kumar <shobhit.kumar@intel.com>
To: linux-pwm <linux-pwm@vger.kernel.org>,
intel-gfx <intel-gfx@lists.freedesktop.org>,
linux-kernel <linux-kernel@vger.kernel.org>,
dri-devel <dri-devel@lists.freedesktop.org>,
linux-gpio <linux-gpio@vger.kernel.org>
Cc: Alexandre Courbot <gnurou@gmail.com>,
Paul Bolle <pebolle@tiscali.nl>,
Samuel Ortiz <sameo@linux.intel.com>,
Povilas Staniulis <wdmonster@gmail.com>,
Jani Nikula <jani.nikula@intel.com>,
Shobhit Kumar <shobhit.kumar@intel.com>,
Linus Walleij <linus.walleij@linaro.org>,
varkabhadram@gmail.com,
Paul Gortmaker <paul.gortmaker@windriver.com>,
bloften80@gmail.com, David Airlie <airlied@linux.ie>,
Chih-Wei Huang <cwhuang@android-x86.org>,
Thierry Reding <thierry.reding@gmail.com>,
Daniel Vetter <daniel.vetter@intel.com>,
Lee Jones <lee.jones@linaro.org>
Subject: [v3 1/7] gpiolib: Add support for removing registered consumer lookup table
Date: Fri, 26 Jun 2015 14:32:04 +0530 [thread overview]
Message-ID: <1435309330-50725-2-git-send-email-shobhit.kumar@intel.com> (raw)
In-Reply-To: <1435309330-50725-1-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
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>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com>
---
v2: Ccing maintainers
v3: Correct the subject line (Lee jones)
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 957ede5..9d3ea4e 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -1675,6 +1675,19 @@ 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 */
--
1.9.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
next prev parent reply other threads:[~2015-06-26 9:02 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-26 9:02 [v3 0/7] Crystalcove (CRC) PMIC based panel and pwm control Shobhit Kumar
2015-06-26 9:02 ` Shobhit Kumar [this message]
2015-07-01 7:46 ` [v3 1/7] gpiolib: Add support for removing registered consumer lookup table Lee Jones
2015-06-26 9:02 ` [v3 2/7] mfd: intel_soc_pmic_core: Add lookup table for Panel Control as GPIO signal Shobhit Kumar
2015-06-26 9:02 ` [v3 3/7] mfd: intel_soc_pmic_crc: Add PWM cell device for Crystalcove PMIC Shobhit Kumar
2015-06-26 9:02 ` [v3 4/7] mfd: intel_soc_pmic_core: ADD PWM lookup table for CRC PMIC based PWM Shobhit Kumar
2015-06-26 9:02 ` [v3 5/7] pwm: crc: Add Crystalcove (CRC) PWM driver Shobhit Kumar
2015-06-26 12:31 ` Varka Bhadram
2015-06-26 9:02 ` [v3 6/7] drm/i915: Use the CRC gpio for panel enable/disable Shobhit Kumar
2015-06-26 9:02 ` [v3 7/7] drm/i915: Backlight control using CRC PMIC based PWM driver Shobhit Kumar
2015-06-26 16:31 ` [Intel-gfx] [v3 0/7] Crystalcove (CRC) PMIC based panel and pwm control Daniel Vetter
2015-06-26 17:47 ` Ville Syrjälä
2015-06-28 2:28 ` Shobhit Kumar
2015-06-28 22:18 ` [Intel-gfx] " Paul Gortmaker
2015-06-30 4:37 ` Brain WrecK
2015-07-10 13:06 ` Shobhit Kumar
2015-07-21 7:13 ` [Intel-gfx] " Shobhit Kumar
2015-07-21 7:24 ` Daniel Vetter
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1435309330-50725-2-git-send-email-shobhit.kumar@intel.com \
--to=shobhit.kumar@intel.com \
--cc=airlied@linux.ie \
--cc=bloften80@gmail.com \
--cc=cwhuang@android-x86.org \
--cc=daniel.vetter@intel.com \
--cc=dri-devel@lists.freedesktop.org \
--cc=gnurou@gmail.com \
--cc=intel-gfx@lists.freedesktop.org \
--cc=jani.nikula@intel.com \
--cc=lee.jones@linaro.org \
--cc=linus.walleij@linaro.org \
--cc=linux-gpio@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pwm@vger.kernel.org \
--cc=paul.gortmaker@windriver.com \
--cc=pebolle@tiscali.nl \
--cc=sameo@linux.intel.com \
--cc=thierry.reding@gmail.com \
--cc=varkabhadram@gmail.com \
--cc=wdmonster@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).