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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO updates from Linus Walleij:
"This is the bulk of GPIO changes for kernel v4.6. There is quite a
lot of interesting stuff going on.
The patches to other subsystems and arch-wide are ACKed as far as
possible, though I consider things like per-arch <asm/gpio.h> as
essentially a part of the GPIO subsystem so it should not be needed.
Core changes:
- The gpio_chip is now a *real device*. Until now the gpio chips
were just piggybacking the parent device or (gasp) floating in
space outside of the device model.
We now finally make GPIO chips devices. The gpio_chip will create
a gpio_device which contains a struct device, and this gpio_device
struct is kept private. Anything that needs to be kept private
from the rest of the kernel will gradually be moved over to the
gpio_device.
- As a result of making the gpio_device a real device, we have added
resource management, so devm_gpiochip_add_data() will cut down on
overhead and reduce code lines. A huge slew of patches convert
almost all drivers in the subsystem to use this.
- Building on making the GPIO a real device, we add the first step of
a new userspace ABI: the GPIO character device. We take small
steps here, so we first add a pure *information* ABI and the tool
"lsgpio" that will list all GPIO devices on the system and all
lines on these devices.
We can now discover GPIOs properly from userspace. We still have
not come up with a way to actually *use* GPIOs from userspace.
- To encourage people to use the character device for the future, we
have it always-enabled when using GPIO. The old sysfs ABI is still
opt-in (and can be used in parallel), but is marked as deprecated.
We will keep it around for the foreseeable future, but it will not
be extended to cover ever more use cases.
Cleanup:
- Bjorn Helgaas removed a whole slew of per-architecture <asm/gpio.h>
includes.
This dates back to when GPIO was an opt-in feature and no shared
library even existed: just a header file with proper prototypes was
provided and all semantics were up to the arch to implement. These
patches make the GPIO chip even more a proper device and cleans out
leftovers of the old in-kernel API here and there.
Still some cruft is left but it's very little now.
- There is still some clamping of return values for .get() going on,
but we now return sane values in the vast majority of drivers and
the errorpath is sanitized. Some patches for powerpc, blackfin and
unicore still drop in.
- We continue to switch the ARM, MIPS, blackfin, m68k local GPIO
implementations to use gpiochip_add_data() and cut down on code
lines.
- MPC8xxx is converted to use the generic GPIO helpers.
- ATH79 is converted to use the generic GPIO helpers.
New drivers:
- WinSystems WS16C48
- Acces 104-DIO-48E
- F81866 (a F7188x variant)
- Qoric (a MPC8xxx variant)
- TS-4800
- SPI serializers (pisosr): simple 74xx shift registers connected to
SPI to obtain a dirt-cheap output-only GPIO expander.
- Texas Instruments TPIC2810
- Texas Instruments TPS65218
- Texas Instruments TPS65912
- X-Gene (ARM64) standby GPIO controller"
* tag 'gpio-v4.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (194 commits)
Revert "Share upstreaming patches"
gpio: mcp23s08: Fix clearing of interrupt.
gpiolib: Fix comment referring to gpio_*() in gpiod_*()
gpio: pca953x: Fix pca953x_gpio_set_multiple() on 64-bit
gpio: xgene: Fix kconfig for standby GIPO contoller
gpio: Add generic serializer DT binding
gpio: uapi: use 0xB4 as ioctl() major
gpio: tps65912: fix bad merge
Revert "gpio: lp3943: Drop pin_used and lp3943_gpio_request/lp3943_gpio_free"
gpio: omap: drop dev field from gpio_bank structure
gpio: mpc8xxx: Slightly update the code for better readability
gpio: mpc8xxx: Remove *read_reg and *write_reg from struct mpc8xxx_gpio_chip
gpio: mpc8xxx: Fixup setting gpio direction output
gpio: mcp23s08: Add support for mcp23s18
dt-bindings: gpio: altera: Fix altr,interrupt-type property
gpio: add driver for MEN 16Z127 GPIO controller
gpio: lp3943: Drop pin_used and lp3943_gpio_request/lp3943_gpio_free
gpio: timberdale: Switch to devm_ioremap_resource()
gpio: ts4800: Add IMX51 dependency
gpiolib: rewrite gpiodev_add_to_list
...
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git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
"Core:
- New sysfs interface to set and read clock offset
- Drivers can now be both I2C and SPI (see pcf2127 and ds3232)
New drivers:
- Alphascale ASM9260
- Epson RX6110SA
- Maxim max20024 and max77620 (in max77686)
- Microchip PIC32
- NXP pcf2129 (in pcf2127)
Subsystem wide cleanups:
- remove IRQF_EARLY_RESUME when unecessary
Drivers:
- ds1307: clock output, temperature sensor and wakeup-source support
- ds1685: actually spin forever in poweroff error path
- ds3232: many cleanups
- ds3234: merged in ds3232
- hym8563: fix invalid year calculation
- max77686: many cleanups
- max77802 merged in max77686
- pcf2123: cleanups and offset support
- pcf85063: cleanups
- pcf8523: propely handle oscillator stop bit
- rv3029: many cleanups, trickle charger and temperature sensor support
- rv8803: convert spin_lock to mutex_lock
- rx8025: many fixes
- vr41xx: restore alarm_irq_enable"
* tag 'rtc-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (86 commits)
rtc: pcf2127: add pcf2129 device id
rtc: pcf2127: add support for spi interface
rtc: pcf2127: convert to use regmap
rtc: rv3029: Add thermometer hwmon support
rtc: rv3029: Add update_bits helper for eeprom access
rtc: ds1685: actually spin forever in poweroff error path
rtc: hym8563: fix invalid year calculation
rtc: ds3232: use rtc->ops_lock to protect alarm operations
rtc: ds3232: fix issue when irq is shared several devices
rtc: ds3232: remove unused UIE code
rtc: ds3232: add register access error checks
rtc: ds3232: fix read on /dev/rtc after RTC_AIE_ON
rtc: merge ds3232 and ds3234
rtc: ds3232: convert to use regmap
rtc: pxa: fix Kconfig indentation
rtc: rv3029: Add device tree property for trickle charger
rtc: rv3029: Add functions for EEPROM access
rtc: rv3029: Add i2c register update-bits helper
rtc: rv3029: Add missing register definitions
rtc: rv3029: Add "rv3029" I2C device id
...
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To make RTC block of MAX77686/MAX77802 as independent driver,
move the registration of i2c device, regmap for register access
and irq_chip for interrupt support inside the RTC driver.
Removed the same initialisation from MFD driver.
Having this change will allow to reuse this driver for different
PMIC/devices from Maxim Semiconductor if they kept same RTC IP on
different PMIC. Some of examples as PMIC MAX77620, MAX20024 where
same RTC IP used and hence driver for these chips will use this
driver only for RTC support.
Suggested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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There is different RTC I2C address for RTC block in MAX77686.
Driver is creating dummy i2c client for this address to access
the register of this IP block.
As there is no call to i2c_get_clientdata() for rtc_i2c client,
there is no need to store pointer and hence removing the call
to set client data for rtc i2c client.
Suggested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into devel
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Most arches have an asm/gpio.h that merely includes linux/gpio.h. The
others select ARCH_HAVE_CUSTOM_GPIO_H, and when that's selected,
linux/gpio.h includes asm/gpio.h.
Therefore, code should include linux/gpio.h instead of including asm/gpio.h
directly.
Remove includes of asm/gpio.h, adding an include of linux/gpio.h when
necessary.
This is a follow-on to 7563bbf89d06 ("gpiolib/arches: Centralise
bolierplate asm/gpio.h").
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This patch adds support for TPS65912 PMIC MFD core. It provides
communication through the I2C and SPI interfaces. It contains
the following components:
- Regulators
- GPIO controller
Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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The old tps65912 driver is being replaced, delete old driver.
Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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When the thermal subsystem is a loadable module, the u8500 driver
fails to build:
drivers/thermal/built-in.o: In function `db8500_thermal_probe':
db8500_thermal.c:(.text+0x96c): undefined reference to `thermal_zone_device_register'
drivers/thermal/built-in.o: In function `db8500_thermal_work':
db8500_thermal.c:(.text+0xab4): undefined reference to `thermal_zone_device_update'
This changes the symbol to a tristate, so Kconfig can track the
dependency correctly.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO updates from Linus Walleij:
"Here is the bulk of GPIO changes for v4.5.
Notably there are big refactorings mostly by myself, aimed at getting
the gpio_chip into a shape that makes me believe I can proceed to
preserve state for a proper userspace ABI (character device) that has
already been proposed once, but resulted in the feedback that I need
to go back and restructure stuff. So I've been restructuring stuff.
On the way I ran into brokenness (return code from the get_value()
callback) and had to fix it. Also, refactored generic GPIO to be
simpler.
Some of that is still waiting to trickle down from the subsystems all
over the kernel that provide random gpio_chips, I've touched every
single GPIO driver in the kernel now, oh man I didn't know I was
responsible for so much...
Apart from that we're churning along as usual.
I took some effort to test and retest so it should merge nicely and we
shook out a couple of bugs in -next.
Infrastructural changes:
- In struct gpio_chip, rename the .dev node to .parent to better
reflect the fact that this is not the GPIO struct device
abstraction. We will add that soon so this would be totallt
confusing.
- It was noted that the driver .get_value() callbacks was sometimes
reporting negative -ERR values to the gpiolib core, expecting them
to be propagated to consumer gpiod_get_value() and gpio_get_value()
calls. This was not happening, so as there was a mess of drivers
returning negative errors and some returning "anything else than
zero" to indicate that a line was active. As some would have bit
31 set to indicate "line active" it clashed with negative error
codes. This is fixed by the largeish series clamping values in all
drivers with !!value to [0,1] and then augmenting the code to
propagate error codes to consumers. (Includes some ACKed patches
in other subsystems.)
- Add a void *data pointer to struct gpio_chip. The container_of()
design pattern is indeed very nice, but we want to reform the
struct gpio_chip to be a non-volative, stateless business, and keep
states internal to the gpiolib to be able to hold on to the state
when adding a proper userspace ABI (character device) further down
the road. To achieve this, drivers need a handle at the internal
state that is not dependent on their struct gpio_chip() so we add
gpiochip_add_data() and gpiochip_get_data() following the pattern
of many other subsystems. All the "use gpiochip data pointer"
patches transforms drivers to this scheme.
- The Generic GPIO chip header has been merged into the general
<linux/gpio/driver.h> header, and the custom header for that
removed. Instead of having a separate mm_gpio_chip struct for
these generic drivers, merge that into struct gpio_chip,
simplifying the code and removing the need for separate and
confusing includes.
Misc improvements:
- Stabilize the way GPIOs are looked up from the ACPI legacy
specification.
- Incremental driver features for PXA, PCA953X, Lantiq (patches from
the OpenWRT community), RCAR, Zynq, PL061, 104-idi-48
New drivers:
- Add a GPIO chip to the ALSA SoC AC97 driver.
- Add a new Broadcom NSP SoC driver (this lands in the pinctrl dir,
but the branch is merged here too to account for infrastructural
changes).
- The sx150x driver now supports the sx1502"
* tag 'gpio-v4.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (220 commits)
gpio: generic: make bgpio_pdata always visible
gpiolib: fix chip order in gpio list
gpio: mpc8xxx: Do not use gpiochip_get_data() in mpc8xxx_gpio_save_regs()
gpio: mm-lantiq: Do not use gpiochip_get_data() in ltq_mm_save_regs()
gpio: brcmstb: Allow building driver for BMIPS_GENERIC
gpio: brcmstb: Set endian flags for big-endian MIPS
gpio: moxart: fix build regression
gpio: xilinx: Do not use gpiochip_get_data() in xgpio_save_regs()
leds: pca9532: use gpiochip data pointer
leds: tca6507: use gpiochip data pointer
hid: cp2112: use gpiochip data pointer
bcma: gpio: use gpiochip data pointer
avr32: gpio: use gpiochip data pointer
video: fbdev: via: use gpiochip data pointer
gpio: pch: Optimize pch_gpio_get()
Revert "pinctrl: lantiq: Implement gpio_chip.to_irq"
pinctrl: nsp-gpio: use gpiochip data pointer
pinctrl: vt8500-wmt: use gpiochip data pointer
pinctrl: exynos5440: use gpiochip data pointer
pinctrl: at91-pio4: use gpiochip data pointer
...
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git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"New Device Support:
- Add support for s2mps15; sec-core
- Add support for Lewisburg; lpc_ich
- Add support for cs47l24 and wm1831; arizona
New Functionality:
- Allow user to select syscon register width; syscon
Fix-ups:
- Lots of Checkpatch fixes
- Rename -pmic/-regulator; s2mps11
- Build driver components into a single module; wm8994-*
- Better handing of IRQ during suspend/resume; as3722
- Constify things; da903x
- Remove unused code; ab8500-core
- Improve error handing; qcom_rpm
- Simplify code: wm831x-otp, sta2x11-mfd
- Improve locking; cros_ec_spi
- Fix incorrect DT binding filename reference; arizona, palmas,
snps-dwapb-gpio, wm8994
Bug Fixes:
- Fix broken SYSFS 'show ID' call; wm831x-otp
- Protect reads from non-existent registers; qcom-spmi-pmic
- Repair build warnings; as3722
- Fix IRQ request ordering; arizona-irq
- Ensure return value is boolean; ucb1x00-core, tps65010, tc6393xb,
htc-egpio, dm355evm_msp, asic3"
* tag 'mfd-for-linus-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (58 commits)
mfd: davinci_voicecodec: Remove pointless 'out of memory' error message
mfd: da9052-irq: Fix trivial 'space before comma' error
mfd: da9052-i2c: Fix tabbing/whitespace issue
mfd: da903x: Fix white space and split string issues
mfd: cs5535-mfd: Add missing line spacing and make local array static
mfd: cros_ec_spi: Repair comparison ordering issue
mfd: cros_ec_i2c: Fix trivial 'tabs before spaces' whitespace issue.
mfd: asic3: Fix a plethora of Checkpatch errors and warnings
mfd: as3711: Repair OOM and 'line over 80 chars' formatting warnings
mfd: arizona-i2c: Add blank line formatting after declaration
mfd: arizona-core: msleep() is unreliable for anything <20ms use usleep_range() instead
mfd: adp5520: Some trivial 'no space before tab' fixes
mfd: ab8500-sysctrl: Fix Constify, printk => pr_info and formatting issues
mfd: ab8500-gpadc: Squash a whole bunch of Checkpatch warnings and one error
mfd: ab8500-debugfs: Clean-up non-conforming commenting and print formatting
mfd: ab8500-core: Fix many warnings reported by Checkpatch
mfd: ab2100-otp: Remove pointless 'out of memory' error message
mfd: ab3100-core.c: Fix multiple warnings reported by Checkpatch
mfd: aat2870-core: Remove unnecessary 'out of memory' message
mfd: 88pm860x-core: Fix commenting and declaration spacing
...
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WARNING: Possible unnecessary 'out of memory' message
+ if (!davinci_vc) {
+ dev_dbg(&pdev->dev,
total: 0 errors, 1 warnings, 154 lines checked
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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ERROR: space prohibited before that ',' (ctx:WxW)
+ da9052_free_irq(da9052, DA9052_IRQ_ADC_EOM , da9052);
total: 1 errors, 0 warnings, 290 lines checked
Cc: Support Opensource <support.opensource@diasemi.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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WARNING: suspect code indent for conditional statements (8, 24)
+ if (!i2c_safe_reg(reg))
+ return regmap_read(da9052->regmap,
total: 0 errors, 1 warnings, 226 lines checked
Cc: Support Opensource <support.opensource@diasemi.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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While we're at it, let's also match the MODULE_LICENSE with the header.
WARNING: please, no space before tabs
+ * ^IMike Rapoport <mike@compulab.co.il>$
WARNING: please, no space before tabs
+ * ^IEric Miao <eric.miao@marvell.com>$
WARNING: quoted string split across lines
+MODULE_AUTHOR("Eric Miao <eric.miao@marvell.com>"
+ "Mike Rapoport <mike@compulab.co.il>");
total: 0 errors, 3 warnings, 574 lines checked
Cc: Support Opensource <support.opensource@diasemi.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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WARNING: Missing a blank line after declarations
+ struct resource *res;
+ res = platform_get_resource(pdev, IORESOURCE_IO, 0);
WARNING: char * array declaration might be better as static const
+ const char *acpi_clones[] = { "olpc-xo1-pm-acpi", "olpc-xo1-sci-acpi" };
total: 0 errors, 2 warnings, 192 lines checked
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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WARNING: Comparisons should place the constant on the right side of the test
+ BUG_ON(EC_MSG_PREAMBLE_COUNT > ec_dev->din_size);
WARNING: Comparisons should place the constant on the right side of the test
+ BUG_ON(EC_MSG_PREAMBLE_COUNT > ec_dev->din_size);
total: 0 errors, 2 warnings, 731 lines checked
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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ERROR: code indent should use tabs where possible
+ ^Iec_dev = devm_kzalloc(dev, sizeof(*ec_dev), GFP_KERNEL);$
WARNING: please, no space before tabs
+ ^Iec_dev = devm_kzalloc(dev, sizeof(*ec_dev), GFP_KERNEL);$
WARNING: please, no spaces at the start of a line
+ ^Iec_dev = devm_kzalloc(dev, sizeof(*ec_dev), GFP_KERNEL);$
total: 1 errors, 2 warnings, 366 lines checked
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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ERROR: Macros with complex values should be enclosed in parentheses
+#define INIT_CDEX(_name, _rate) \
+ [ASIC3_CLOCK_##_name] = { \
+ .cdex = CLOCK_CDEX_##_name, \
+ .rate = _rate, \
+ }
WARNING: line over 80 characters
+ ASIC3_GPIO_INT_STATUS);
WARNING: void function return statements are not generally useful
+ return;
+}
WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+ msleep(1);
WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+ msleep(1);
WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+ msleep(1);
WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+ msleep(1);
WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+ msleep(1);
WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+ msleep(1);
WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+ msleep(1);
WARNING: line over 80 characters
+ asic->tmio_cnf = ioremap((ASIC3_SD_CONFIG_BASE >> asic->bus_shift) +
WARNING: Prefer [subsystem eg: netdev]_err([subsystem]dev, ... then dev_err(dev, ... then p
r_err(... to printk(KERN_ERR ...
+ printk(KERN_ERR "kzalloc failed\n");
WARNING: Possible unnecessary 'out of memory' message
+ if (asic == NULL) {
+ printk(KERN_ERR "kzalloc failed\n");
WARNING: Missing a blank line after declarations
+ int retval = 0;
+ retval = platform_driver_probe(&asic3_device_driver, asic3_probe);
total: 1 errors, 13 warnings, 1081 lines checked
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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WARNING: Possible unnecessary 'out of memory' message
+ if (!pdata) {
+ dev_err(&client->dev, "Failed to allocate pdata\n");
WARNING: Possible unnecessary 'out of memory' message
+ if (!as3711) {
+ dev_err(&client->dev, "Memory allocation failed\n");
WARNING: line over 80 characters
+ dev_err(&client->dev, "regmap initialization failed: %d\n", ret);
WARNING: line over 80 characters
+ /* We can reuse as3711_subdevs[], it will be copied in mfd_add_devices() */
WARNING: line over 80 characters
+ as3711_subdevs[AS3711_REGULATOR].platform_data = &pdata->regulator;
WARNING: line over 80 characters
+ as3711_subdevs[AS3711_REGULATOR].pdata_size = sizeof(pdata->regulator);
WARNING: line over 80 characters
+ as3711_subdevs[AS3711_BACKLIGHT].platform_data = &pdata->backlight;
WARNING: line over 80 characters
+ as3711_subdevs[AS3711_BACKLIGHT].pdata_size = sizeof(pdata->backlight);
total: 0 errors, 8 warnings, 236 lines checked
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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WARNING: Missing a blank line after declarations
+ struct arizona *arizona = dev_get_drvdata(&i2c->dev);
+ arizona_dev_exit(arizona);
total: 0 errors, 1 warnings, 120 lines checked
Cc: patches@opensource.wolfsonmicro.com
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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usleep_range() instead
WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+ msleep(1);
WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+ msleep(5);
WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+ msleep(1);
WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+ msleep(1);
total: 0 errors, 4 warnings, 1407 lines checked
Cc: patches@opensource.wolfsonmicro.com
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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WARNING: please, no space before tabs
+ * ^IMike Rapoport <mike@compulab.co.il>$
WARNING: please, no space before tabs
+ * ^IEric Miao <eric.miao@marvell.com>$
WARNING: please, no space before tabs
+^I.id_table ^I= adp5520_id,$
total: 0 errors, 3 warnings, 365 lines checked
Cc: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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WARNING: char * array declaration might be better as static const
+ static char *pss[] = {"ab8500_ac", "pm2301", "ab8500_usb"};
WARNING: Prefer [subsystem eg: netdev]_info([subsystem]dev, ... then dev_info(dev, ... then
pr_info(... to printk(KERN_INFO ...
+ printk(KERN_INFO
WARNING: quoted string split across lines
+ "Charger \"%s\" is connected with known battery."
+ " Rebooting.\n",
WARNING: quoted string split across lines
+ "unable to set sysClkReq%dRfClkBuf: "
+ "%d\n", j + 1, ret);
total: 0 errors, 4 warnings, 199 lines checked
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
|
|
WARNING: line over 80 characters
+#define ADC_CH_IBAT_MIN (-6000) /* mA range measured by ADC for ib
t*/
WARNING: line over 80 characters
+#define ADC_CH_IBAT_MIN_V (-60) /* mV range measured by ADC for ibat*/
WARNING: suspect code indent for conditional statements (16, 20)
+ if (!strcmp(name, dev_name(gpadc->dev)))
+ return gpadc;
WARNING: suspect code indent for conditional statements (0, 16)
+if (ad_value < 0) {
+ dev_err(gpadc->dev, "GPADC raw value failed ch: %d\n",
WARNING: quoted string split across lines
+ dev_err(gpadc->dev, "GPADC to voltage conversion failed ch:"
+ " %d AD: 0x%x\n", channel, ad_value);
WARNING: Missing a blank line after declarations
+ int raw_data;
+ raw_data = ab8500_gpadc_double_read_raw(gpadc, channel,
WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
+ msleep(10);
ERROR: else should follow close brace '}'
+ }
+ else
WARNING: line over 80 characters
+ delay_max = 10000; /* large range to optimise sleep mode */
WARNING: line over 80 characters
+ gpadc->cal_data[ADC_INPUT_IBAT].gain = V_gain * V2A_gain;
WARNING: line over 80 characters
+ gpadc = devm_kzalloc(&pdev->dev, sizeof(struct ab8500_gpadc), GFP_KERNEL);
WARNING: Possible unnecessary 'out of memory' message
+ if (!gpadc) {
+ dev_err(&pdev->dev, "Error: No memory\n");
WARNING: space prohibited before semicolon
+ return ;
WARNING: void function return statements are not generally useful
+ return ;
+}
WARNING: quoted string split across lines
+MODULE_AUTHOR("Arun R Murthy, Daniel Willerud, Johan Palsson,"
+ "M'boumba Cedric Madianga");
total: 1 errors, 14 warnings, 1089 lines checked
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
|
|
WARNING: Block comments use a trailing */ on a separate line
+ * not be accessed from here */
WARNING: Block comments use a trailing */ on a separate line
+ * not be accessed from here */
WARNING: Block comments use a trailing */ on a separate line
+ * the output is wanted in any case */
WARNING: Consecutive strings are generally better as a single string
+ " addr=0x%08X, mask=0x%X, shift=%d" "value=0x%X\n",
total: 0 errors, 4 warnings, 3331 lines checked
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
|
|
WARNING: Block comments use a trailing */ on a separate line
+ * */
WARNING: Block comments use a trailing */ on a separate line
+ * bank on higher 8 bits and reg in lower */
WARNING: Block comments use a trailing */ on a separate line
+ * bank on higher 8 bits and reg in lower */
WARNING: suspect code indent for conditional statements (8, 24)
+ if (unlikely(*offset == 17))
+ *offset = 24;
WARNING: suspect code indent for conditional statements (8, 24)
+ if (unlikely(*offset == 16))
+ *offset = 25;
WARNING: suspect code indent for conditional statements (8, 24)
+ if ((i == 3) && (*offset >= 24))
+ *offset += 2;
WARNING: ENOSYS means 'invalid syscall nr' and nothing else
+ return -ENOSYS;
WARNING: static const char * array should probably be static const char * const
+ static const char *switch_off_status[] = {
WARNING: static const char * array should probably be static const char * const
+ static const char *turn_on_status[] = {
total: 0 errors, 9 warnings, 1867 lines checked
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
|
|
WARNING: Possible unnecessary 'out of memory' message
+ if (!otp) {
+ dev_err(&pdev->dev, "could not allocate AB3100 OTP device\n");
total: 0 errors, 1 warnings, 250 lines checked
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
|
|
WARNING: Missing a blank line after declarations
+ struct ab3100 *ab3100 = dev_get_drvdata(dev->parent);
+ if (!ab3100->startup_events_read)
WARNING: Possible unnecessary 'out of memory' message
+ if (!ab3100) {
+ dev_err(&client->dev, "could not allocate AB3100 device\n");
WARNING: else is not generally useful after a break or return
+ break;
+ } else {
total: 0 errors, 3 warnings, 996 lines checked
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
|
|
WARNING: Possible unnecessary 'out of memory' message
+ if (!aat2870) {
+ dev_err(&client->dev,
total: 0 errors, 1 warnings, 524 lines checked
Signed-off-by: Lee Jones <lee.jones@linaro.org>
|
|
Checkpatch output:
WARNING: Block comments use a trailing */ on a separate line
+ * - turn off */
WARNING: Missing a blank line after declarations
+ int ret;
+ ret = i2c_add_driver(&pm860x_driver);
total: 0 errors, 2 warnings, 1283 lines checked
Signed-off-by: Lee Jones <lee.jones@linaro.org>
|
|
Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
|
|
As we want gpio_chip .get() calls to be able to return negative
error codes and propagate to drivers, we need to go over all
drivers and make sure their return values are clamped to [0,1].
We do this by using the ret = !!(val) design pattern.
Cc: Paul Parsons <lost.distance@yahoo.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
|
|
As we want gpio_chip .get() calls to be able to return negative
error codes and propagate to drivers, we need to go over all
drivers and make sure their return values are clamped to [0,1].
We do this by using the ret = !!(val) design pattern.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
|
|
As we want gpio_chip .get() calls to be able to return negative
error codes and propagate to drivers, we need to go over all
drivers and make sure their return values are clamped to [0,1].
We do this by using the ret = !!(val) design pattern.
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
|
|
As we want gpio_chip .get() calls to be able to return negative
error codes and propagate to drivers, we need to go over all
drivers and make sure their return values are clamped to [0,1].
We do this by using the ret = !!(val) design pattern.
Cc: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
|
|
As we want gpio_chip .get() calls to be able to return negative
error codes and propagate to drivers, we need to go over all
drivers and make sure their return values are clamped to [0,1].
We do this by using the ret = !!(val) design pattern.
This also start to propagate the negative error code from the
smbus call if there is one, as the last commit of this series
will make the gpiolib core deal with that properly.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull oower management and ACPI updates from Rafael Wysocki:
"As far as the number of commits goes, ACPICA takes the lead this time,
followed by cpufreq and the device properties framework changes.
The most significant new feature is the debugfs-based interface to the
ACPICA's AML debugger added in the previous cycle and a new user space
tool for accessing it.
On the cpufreq front, the core is updated to handle governors more
efficiently, particularly on systems where a single cpufreq policy
object is shared between multiple CPUs, and there are quite a few
changes in drivers (intel_pstate, cpufreq-dt etc).
The device properties framework is updated to handle built-in (ie
included in the kernel itself) device properties better, among other
things by adding a fallback mechanism that will allow drivers to
provide default properties to be used in case the plaform firmware
doesn't provide the properties expected by them.
The Operating Performance Points (OPP) framework gets new DT bindings
and debugfs support.
A new cpufreq driver for ST platforms is added and the ACPI driver for
AMD SoCs will now support the APM X-Gene ACPI I2C device.
The rest is mostly fixes and cleanups all over.
Specifics:
- Add a debugfs-based interface for interacting with the ACPICA's AML
debugger introduced in the previous cycle and a new user space tool
for that, fix some bugs related to the AML debugger and clean up
the code in question (Lv Zheng, Dan Carpenter, Colin Ian King,
Markus Elfring).
- Update ACPICA to upstream revision 20151218 including a number of
fixes and cleanups in the ACPICA core (Bob Moore, Lv Zheng, Labbe
Corentin, Prarit Bhargava, Colin Ian King, David E Box, Rafael
Wysocki).
In particular, the previously added erroneous support for the _SUB
object is dropped, the concatenate operator will support all ACPI
objects now, the Debug Object handling is improved, the SuperName
handling of parameters being control methods is fixed, the
ObjectType operator handling is updated to follow ACPI 5.0A and the
handling of CondRefOf and RefOf is updated accordingly, module-
level code will be executed after loading each ACPI table now
(instead of being run once after all tables containing AML have
been loaded), the Operation Region handlers management is updated
to fix some reported problems and a the ACPICA code in the kernel
is more in line with the upstream now.
- Update the ACPI backlight driver to provide information on whether
or not it will generate key-presses for brightness change hotkeys
and update some platform drivers (dell-wmi, thinkpad_acpi) to use
that information to avoid sending double key-events to users pace
for these, add new ACPI backlight quirks (Hans de Goede, Aaron Lu,
Adrien Schildknecht).
- Improve the ACPI handling of interrupt GPIOs (Christophe Ricard).
- Fix the handling of the list of device IDs of device objects found
in the ACPI namespace and add a helper for checking if there is a
device object for a given device ID (Lukas Wunner).
- Change the logic in the ACPI namespace scanning code to create
struct acpi_device objects for all ACPI device objects found in the
namespace even if _STA fails for them which helps to avoid device
enumeration problems on Microsoft Surface 3 (Aaron Lu).
- Add support for the APM X-Gene ACPI I2C device to the ACPI driver
for AMD SoCs (Loc Ho).
- Fix the long-standing issue with the DMA controller on Intel SoCs
where ACPI tables have no power management support for the DMA
controller itself, but it can be powered off automatically when the
last (other) device on the SoC is powered off via ACPI and clean up
the ACPI driver for Intel SoCs (acpi-lpss) after previous attempts
to fix that problem (Andy Shevchenko).
- Assorted ACPI fixes and cleanups (Andy Lutomirski, Colin Ian King,
Javier Martinez Canillas, Ken Xue, Mathias Krause, Rafael Wysocki,
Sinan Kaya).
- Update the device properties framework for better handling of
built-in properties, add support for built-in properties to the
platform bus type, update the MFD subsystem's handling of device
properties and add support for passing default configuration data
as device properties to the intel-lpss MFD drivers, convert the
designware I2C driver to use the unified device properties API and
add a fallback mechanism for using default built-in properties if
the platform firmware fails to provide the properties as expected
by drivers (Andy Shevchenko, Mika Westerberg, Heikki Krogerus,
Andrew Morton).
- Add new Device Tree bindings to the Operating Performance Points
(OPP) framework and update the exynos4412 DT binding accordingly,
introduce debugfs support for the OPP framework (Viresh Kumar,
Bartlomiej Zolnierkiewicz).
- Migrate the mt8173 cpufreq driver to the new OPP bindings (Pi-Cheng
Chen).
- Update the cpufreq core to make the handling of governors more
efficient, especially on systems where policy objects are shared
between multiple CPUs (Viresh Kumar, Rafael Wysocki).
- Fix cpufreq governor handling on configurations with
CONFIG_HZ_PERIODIC set (Chen Yu).
- Clean up the cpufreq core code related to the boost sysfs knob
support and update the ACPI cpufreq driver accordingly (Rafael
Wysocki).
- Add a new cpufreq driver for ST platforms and corresponding Device
Tree bindings (Lee Jones).
- Update the intel_pstate driver to allow the P-state selection
algorithm used by it to depend on the CPU ID of the processor it is
running on, make it use a special P-state selection algorithm (with
an IO wait time compensation tweak) on Atom CPUs based on the
Airmont and Silvermont cores so as to reduce their energy
consumption and improve intel_pstate documentation (Philippe
Longepe, Srinivas Pandruvada).
- Update the cpufreq-dt driver to support registering cooling devices
that use the (P * V^2 * f) dynamic power draw formula where V is
the voltage, f is the frequency and P is a constant coefficient
provided by Device Tree and update the arm_big_little cpufreq
driver to use that support (Punit Agrawal).
- Assorted cpufreq driver (cpufreq-dt, qoriq, pcc-cpufreq,
blackfin-cpufreq) updates (Andrzej Hajda, Hongtao Jia, Jacob
Tanenbaum, Markus Elfring).
- cpuidle core tweaks related to polling and measured_us calculation
(Rik van Riel).
- Removal of modularity from a few cpuidle drivers (clps711x, ux500,
exynos) that cannot be built as modules in practice (Paul
Gortmaker).
- PM core update to prevent devices from being probed during system
suspend/resume which is generally problematic and may lead to
inconsistent behavior (Grygorii Strashko).
- Assorted updates of the PM core and related code (Julia Lawall,
Manuel Pégourié-Gonnard, Maruthi Bayyavarapu, Rafael Wysocki, Ulf
Hansson).
- PNP bus type updates (Christophe Le Roy, Heiner Kallweit).
- PCI PM code cleanups (Jarkko Nikula, Julia Lawall).
- cpupower tool updates (Jacob Tanenbaum, Thomas Renninger)"
* tag 'pm+acpi-4.5-rc1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (177 commits)
PM / clk: don't leave clocks enabled when driver not bound
i2c: dw: Add APM X-Gene ACPI I2C device support
ACPI / APD: Add APM X-Gene ACPI I2C device support
ACPI / LPSS: change 'does not have' to 'has' in comment
Revert "dmaengine: dw: platform: provide platform data for Intel"
dmaengine: dw: return immediately from IRQ when DMA isn't in use
dmaengine: dw: platform: power on device on shutdown
ACPI / LPSS: override power state for LPSS DMA device
PM / OPP: Use snprintf() instead of sprintf()
Documentation: cpufreq: intel_pstate: enhance documentation
ACPI, PCI, irq: remove redundant check for null string pointer
ACPI / video: driver must be registered before checking for keypresses
cpufreq-dt: fix handling regulator_get_voltage() result
cpufreq: governor: Fix negative idle_time when configured with CONFIG_HZ_PERIODIC
PM / sleep: Add support for read-only sysfs attributes
ACPI: Fix white space in a structure definition
ACPI / SBS: fix inconsistent indenting inside if statement
PNP: respect PNP_DRIVER_RES_DO_NOT_CHANGE when detaching
ACPI / PNP: constify device IDs
ACPI / PCI: Simplify acpi_penalize_isa_irq()
...
|
|
As we want gpio_chip .get() calls to be able to return negative
error codes and propagate to drivers, we need to go over all
drivers and make sure their return values are clamped to [0,1].
We do this by using the ret = !!(val) design pattern.
Cc: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
|
|
Add device tree bindings to support specifying outputs from the chip as
mono outputs. Whilst we are doing it change the out_mono pdata from a
bool to an int, because Sparse gets upset about using ARRAY_SIZE on
bools.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
|
|
Allow support for the DA9063 PMIC to be modular, cfr. DA9062, which
allows to decrease size of multi-platform kernels (e.g.
multi_v7_defconfig).
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Steve Twiss <stwiss.opensource@diasemi.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
|
|
Currently the driver requests the boot done and control interface IRQs
before it has requested its own IRQ line. This can cause problems on
edge triggered IRQ systems as if an edge occurs before the parent IRQ is
enabled it will be missed. Whilst we are changing the error handling
remove an unused label as well.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
|
|
The newly introduced as3722_i2c_suspend/resume functions are built
unconditionally, but only used when power management is enabled,
so we get a warning otherwise:
drivers/mfd/as3722.c:427:12: warning: 'as3722_i2c_suspend' defined but not used [-Wunused-function]
drivers/mfd/as3722.c:438:12: warning: 'as3722_i2c_resume' defined but not used [-Wunused-function]
This marks them both as __maybe_unused, which avoids an ugly #ifdef
and gives us best compile-time coverage. When they are unused, the
compiler will silently drop the functions from its output.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 35deff7eb212 ("mfd: as3722: Handle interrupts on suspend")
Signed-off-by: Lee Jones <lee.jones@linaro.org>
|
|
These new helpers simplify implementing multi-driver modules and
properly handle failure to register one driver by unregistering all
previously registered drivers.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
|
|
Revision ID registers are available only on devices with
Slave IDs that are even, so don't make access to unavailable
registers.
Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
[sboyd@codeaurora.org: Consider all slave ids that are even]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
|
|
wm831x_unique_id_show currently displays an interesting pattern of '0'
and '3' characters which isn't very useful (figuring out why is left
as an exercise for the reader). Presumably "buf[i]" should have been
"id[i] & 0xff".
But while there, it is much simpler to simply use %phN and do all the
formatting at once.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
|
|
Currently syscon has a fixed configuration of 32 bits for register and
values widths. In some cases, it would be desirable to be able to
customize the value width.
For example, certain boards (like the ones manufactured by Technologic
Systems) have a FPGA that is memory-mapped, but its registers are only
16-bit wide.
This patch adds an optional "reg-io-width" DT binding for syscon that
allows to change the width for the data bus (i.e. val_bits). If this
property is provided, it will also set the register stride to
reg-io-width's value. If not provided, the default configuration is
used.
Signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
|
|
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
|
|
cros_ec_cmd_xfer_spi and cros_ec_pkt_xfer_spi generally work like
this:
- Pull CS down (active), wait a bit, then send a command
- Wait for response (multiple requests)
- Wait a while, pull CS up (inactive)
These operations, individually, lock the SPI bus, but there is
nothing preventing the SPI framework from interleaving messages
intended for other devices as the bus is unlocked in between.
This is a problem as the EC expects CS to be held low for the
whole duration.
Solution: Lock the SPI bus during the whole transaction, to make
sure that no other messages can be interleaved.
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
|
|
The separate struct bgpio_chip has been a pain to handle, both
by being confusingly similar in name to struct gpio_chip and
for being contained inside a struct so that struct gpio_chip
is contained in a struct contained in a struct, making several
steps of dereferencing necessary.
Make things simpler: include the fields directly into
<linux/gpio/driver.h>, #ifdef:ed for CONFIG_GENERIC_GPIO, and
get rid of the <linux/basic_mmio_gpio.h> altogether. Prefix
some of the member variables with bgpio_* and add proper
kerneldoc while we're at it.
Modify all users to handle the change and use a struct
gpio_chip directly. And while we're at it: replace all
container_of() dereferencing by gpiochip_get_data() and
registering the gpio_chip with gpiochip_add_data().
Cc: arm@kernel.org
Cc: Alexander Shiyan <shc_work@mail.ru>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
Cc: Olof Johansson <olof@lixom.net>
Cc: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Cc: Rabin Vincent <rabin@rab.in>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-omap@vger.kernel.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: bcm-kernel-feedback-list@broadcom.com
Acked-by: Gregory Fong <gregory.0xf0@gmail.com>
Acked-by: Liviu Dudau <Liviu.Dudau@arm.com>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
|
