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Use devm_gpiochip_add_data() for GPIO registration and remove the
call of gpiochip_remove() from error path.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
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This makes the driver use the data pointer added to the gpio_chip
to store a pointer to the state container instead of relying on
container_of().
Cc: Shobhit Kumar <shobhit.kumar@intel.com>
Cc: Zhu, Lejun <lejun.zhu@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The name .dev in a struct is normally reserved for a struct device
that is let us say a superclass to the thing described by the struct.
struct gpio_chip stands out by confusingly using a struct device *dev
to point to the parent device (such as a platform_device) that
represents the hardware. As we want to give gpio_chip:s real devices,
this is not working. We need to rename this member to parent.
This was done by two coccinelle scripts, I guess it is possible to
combine them into one, but I don't know such stuff. They look like
this:
@@
struct gpio_chip *var;
@@
-var->dev
+var->parent
and:
@@
struct gpio_chip var;
@@
-var.dev
+var.parent
and:
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struct bgpio_chip *var;
@@
-var->gc.dev
+var->gc.parent
Plus a few instances of bgpio that I couldn't figure out how
to teach Coccinelle to rewrite.
This patch hits all over the place, but I *strongly* prefer this
solution to any piecemal approaches that just exercise patch
mechanics all over the place. It mainly hits drivers/gpio and
drivers/pinctrl which is my own backyard anyway.
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: Rafał Miłecki <zajec5@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Alek Du <alek.du@intel.com>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Acked-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This patch fixes some issues given by checkpatch. Fixes include
bracket placement, spacing and indenting.
Signed-off-by: Daniel Lockyer <thisisdaniellockyer@gmail.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The CrystalCove GPIO irqchip doesn't have irq_set_wake callback defined
so we should set IRQCHIP_SKIP_SET_WAKE for it or it would cause an irq
desc's wake_depth unbalanced warning during system resume phase from the
gpio_keys driver, which is the driver for the power button of the ASUS
T100 laptop.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This file is built off of a tristate Kconfig option and also contains
modular function calls so it should explicitly include module.h to
avoid compile breakage during header shuffles done in the future.
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: linux-gpio@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Export PANEL_EN/DISABLE (offset 0x52) as additional GPIO. Needed
by display driver to enable the DSI panel on BYT platform where
the Panel EN/Disable control is routed thorugh CRC PMIC
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>
Acked-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The CrystalCove GPIO chip has can_sleep set so its demultiplexed irqs
will have IRQ_NESTED_THREAD flag set, thus we should use the nested
version handle_nested_irq in CrystalCove's irq handler instead of
handle_generic_irq, or the following warning will be hit and the
functionality is lost:
[ 4089.639554] Hardware name: ASUSTeK COMPUTER INC. T100TA/T100TA, BIOS T100TA.313 08/13/2014
[ 4089.639564] 00000002 00000000 c24fbdf4 c16e0257 c24fbe38 c24fbe28 c105390c c18ec480
[ 4089.639596] c24fbe54 00000048 c18f8e3b 00000295 c10a60fc 00000295 c10a60fc f4464540
[ 4089.639626] f446459c c278ad40 c24fbe40 c1053974 00000009 c24fbe38 c18ec480 c24fbe54
[ 4089.639656] Call Trace:
[ 4089.639685] [<c16e0257>] dump_stack+0x41/0x52
[ 4089.639707] [<c105390c>] warn_slowpath_common+0x8c/0xc0
[ 4089.639727] [<c10a60fc>] ? irq_nested_primary_handler+0x2c/0x30
[ 4089.639744] [<c10a60fc>] ? irq_nested_primary_handler+0x2c/0x30
[ 4089.639763] [<c1053974>] warn_slowpath_fmt+0x34/0x40
[ 4089.639781] [<c10a60fc>] irq_nested_primary_handler+0x2c/0x30
[ 4089.639800] [<c10a5c56>] handle_irq_event_percpu+0x76/0x190
[ 4089.639818] [<c1461570>] ? regmap_format_10_14_write+0x30/0x30
[ 4089.639836] [<c1464f4c>] ? _regmap_bus_raw_write+0x4c/0x70
[ 4089.639854] [<c10a5da1>] handle_irq_event+0x31/0x50
[ 4089.639872] [<c10a83eb>] handle_simple_irq+0x4b/0x70
[ 4089.639889] [<c10a5384>] generic_handle_irq+0x24/0x40
[ 4089.639908] [<c1366d87>] crystalcove_gpio_irq_handler+0xa7/0xc0
[ 4089.639927] [<c10a85a7>] handle_nested_irq+0x77/0x190
[ 4089.639947] [<c1469801>] regmap_irq_thread+0x1b1/0x360
[ 4089.639966] [<c10a6ae8>] irq_thread_fn+0x18/0x30
[ 4089.639983] [<c10a6906>] irq_thread+0xf6/0x110
[ 4089.640001] [<c10a6ad0>] ? irq_finalize_oneshot.part.30+0x1b0/0x1b0
[ 4089.640019] [<c10a6b50>] ? irq_forced_thread_fn+0x50/0x50
[ 4089.640037] [<c10a6810>] ? irq_thread_check_affinity+0xc0/0xc0
[ 4089.640054] [<c106f389>] kthread+0xa9/0xc0
[ 4089.640074] [<c16e6401>] ret_from_kernel_thread+0x21/0x30
[ 4089.640091] [<c106f2e0>] ? kthread_create_on_node+0x110/0x110
[ 4089.640105] ---[ end trace dca7946ad31eba7d ]---
Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=90521
Reported-and-tested-by: Brian Loften <bloften80@gmail.com>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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A platform_driver does not need to set an owner, it will be populated by the
driver core.
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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The virtual GPIO introduced in ACPI table of Baytrail-T based system is
used to solve a problem under Windows. We do not have such problems
under Linux so we do not actually need them. But we have to tell GPIO
library that the Crystal Cove GPIO chip has this many GPIO pins or the
common GPIO handler will refuse any access to those high number GPIO
pins, which will resulted in a failure evaluation of every ACPI control
method that is used to turn on/off power resource and/or report sensor
temperatures.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
[changed vgpio number from 0x5e to 94]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Some drivers accidentally still use the return value from
gpiochip_remove(). Get rid of them so we can simplify this function
and get rid of the return value.
Cc: Abdoulaye Berthe <berthe.ab@gmail.com>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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drivers/gpio/gpio-crystalcove.c: In function 'crystalcove_gpio_dbg_show':
drivers/gpio/gpio-crystalcove.c:286:3: error: implicit declaration of function 'seq_printf'
seq_printf(s, " gpio-%-2d %s %s %s %s ctlo=%2x,%s %s %s\n",
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Devices based on Intel SoC products such as Baytrail have a Power
Management IC. In the PMIC there are subsystems for voltage regulation,
A/D conversion, GPIO and PWMs. The PMIC in Baytrail-T platform is
called Crystal Cove.
This patch adds support for the GPIO function in Crystal Cove.
Signed-off-by: Yang, Bin <bin.yang@intel.com>
Signed-off-by: Zhu, Lejun <lejun.zhu@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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