fbdev: Fix recursive dependencies wrt BACKLIGHT_CLASS_DEVICE

Do not select BACKLIGHT_CLASS_DEVICE from FB_BACKLIGHT. The latter
only controls backlight support within fbdev core code and data
struct

fbdev: Fix recursive dependencies wrt BACKLIGHT_CLASS_DEVICE

Do not select BACKLIGHT_CLASS_DEVICE from FB_BACKLIGHT. The latter
only controls backlight support within fbdev core code and data
structures.

Make fbdev drivers depend on BACKLIGHT_CLASS_DEVICE and let users
select it explicitly. Fixes warnings about recursive dependencies,
such as

error: recursive dependency detected!
symbol BACKLIGHT_CLASS_DEVICE is selected by FB_BACKLIGHT
symbol FB_BACKLIGHT is selected by FB_SH_MOBILE_LCDC
symbol FB_SH_MOBILE_LCDC depends on FB_DEVICE
symbol FB_DEVICE depends on FB_CORE
symbol FB_CORE is selected by DRM_GEM_DMA_HELPER
symbol DRM_GEM_DMA_HELPER is selected by DRM_PANEL_ILITEK_ILI9341
symbol DRM_PANEL_ILITEK_ILI9341 depends on BACKLIGHT_CLASS_DEVICE

BACKLIGHT_CLASS_DEVICE is user-selectable, so making drivers adapt to
it is the correct approach in any case. For most drivers, backlight
support is also configurable separately.

v3:
- Select BACKLIGHT_CLASS_DEVICE in PowerMac defconfigs (Christophe)
- Fix PMAC_BACKLIGHT module dependency corner cases (Christophe)
v2:
- s/BACKLIGHT_DEVICE_CLASS/BACKLIGHT_CLASS_DEVICE (Helge)
- Fix fbdev driver-dependency corner case (Arnd)

Signed-off-by: Thomas Zimmermann <[email protected]>
Reviewed-by: Arnd Bergmann <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

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macintosh/ams: Fix unused variable warning

If both CONFIG_SENSORS_AMS_PMU and CONFIG_SENSORS_AMS_I2C are unset,
there is an unused variable warning in the ams driver:

drivers/macintosh/ams/ams-co

macintosh/ams: Fix unused variable warning

If both CONFIG_SENSORS_AMS_PMU and CONFIG_SENSORS_AMS_I2C are unset,
there is an unused variable warning in the ams driver:

drivers/macintosh/ams/ams-core.c: In function 'ams_init':
drivers/macintosh/ams/ams-core.c:181:29: warning: unused variable 'np'
181 | struct device_node *np;

The driver needs at least one of the configs enabled in order to
actually function. So fix the compiler warning by ensuring at least one
of the configs is enabled.

Suggested-by: Christophe Leroy <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Link: https://msgid.link/[email protected]

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macintosh: via-pmu-led: requires ATA to be set

LEDS_TRIGGER_DISK depends on ATA, so selecting LEDS_TRIGGER_DISK
when ATA is not set/enabled causes a Kconfig warning:

WARNING: unmet direct dependenc

macintosh: via-pmu-led: requires ATA to be set

LEDS_TRIGGER_DISK depends on ATA, so selecting LEDS_TRIGGER_DISK
when ATA is not set/enabled causes a Kconfig warning:

WARNING: unmet direct dependencies detected for LEDS_TRIGGER_DISK
Depends on [n]: NEW_LEDS [=y] && LEDS_TRIGGERS [=y] && ATA [=n]
Selected by [y]:
- ADB_PMU_LED_DISK [=y] && MACINTOSH_DRIVERS [=y] && ADB_PMU_LED [=y] && LEDS_CLASS [=y]

Fix this by making ADB_PMU_LED_DISK depend on ATA.

Seen on both PPC32 and PPC64.

Fixes: 0e865a80c135 ("macintosh: Remove dependency on IDE_GD_ATA if ADB_PMU_LED_DISK is selected")
Signed-off-by: Randy Dunlap <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Link: https://msgid.link/[email protected]

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macintosh: via-pmu and via-cuda need RTC_LIB

Fix build when RTC_LIB is not set/enabled.
Eliminates these build errors:

m68k-linux-ld: drivers/macintosh/via-pmu.o: in function `pmu_set_rtc_time':
dr

macintosh: via-pmu and via-cuda need RTC_LIB

Fix build when RTC_LIB is not set/enabled.
Eliminates these build errors:

m68k-linux-ld: drivers/macintosh/via-pmu.o: in function `pmu_set_rtc_time':
drivers/macintosh/via-pmu.c:1769: undefined reference to `rtc_tm_to_time64'
m68k-linux-ld: drivers/macintosh/via-cuda.o: in function `cuda_set_rtc_time':
drivers/macintosh/via-cuda.c:797: undefined reference to `rtc_tm_to_time64'

Fixes: 0792a2c8e0bb ("macintosh: Use common code to access RTC")
Reported-by: kernel test robot <[email protected]>
Suggested-by: Christophe Leroy <[email protected]>
Signed-off-by: Randy Dunlap <[email protected]>
Acked-by: Arnd Bergmann <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

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macintosh/via-pmu: Fix build failure when CONFIG_INPUT is disabled

drivers/macintosh/via-pmu-event.o: In function `via_pmu_event':
via-pmu-event.c:(.text+0x44): undefined reference to `input_event'

macintosh/via-pmu: Fix build failure when CONFIG_INPUT is disabled

drivers/macintosh/via-pmu-event.o: In function `via_pmu_event':
via-pmu-event.c:(.text+0x44): undefined reference to `input_event'
via-pmu-event.c:(.text+0x68): undefined reference to `input_event'
via-pmu-event.c:(.text+0x94): undefined reference to `input_event'
via-pmu-event.c:(.text+0xb8): undefined reference to `input_event'
drivers/macintosh/via-pmu-event.o: In function `via_pmu_event_init':
via-pmu-event.c:(.init.text+0x20): undefined reference to `input_allocate_device'
via-pmu-event.c:(.init.text+0xc4): undefined reference to `input_register_device'
via-pmu-event.c:(.init.text+0xd4): undefined reference to `input_free_device'
make[1]: *** [Makefile:1155: vmlinux] Error 1
make: *** [Makefile:350: __build_one_by_one] Error 2

Don't call into the input subsystem unless CONFIG_INPUT is built-in.

Reported-by: kernel test robot <[email protected]>
Signed-off-by: Finn Thain <[email protected]>
Tested-by: Randy Dunlap <[email protected]>
Reviewed-by: Christophe Leroy <[email protected]>
Acked-by: Randy Dunlap <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Link: https://lore.kernel.org/r/5edbe76ce68227f71e09af4614cc4c1bd61c7ec8.1649326292.git.fthain@linux-m68k.org

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treewide: replace '---help---' in Kconfig files with 'help'

Since commit 84af7a6194e4 ("checkpatch: kconfig: prefer 'help' over
'---help---'"), the number of '---help---' has been gradually
decreasi

treewide: replace '---help---' in Kconfig files with 'help'

Since commit 84af7a6194e4 ("checkpatch: kconfig: prefer 'help' over
'---help---'"), the number of '---help---' has been gradually
decreasing, but there are still more than 2400 instances.

This commit finishes the conversion. While I touched the lines,
I also fixed the indentation.

There are a variety of indentation styles found.

a) 4 spaces + '---help---'
b) 7 spaces + '---help---'
c) 8 spaces + '---help---'
d) 1 space + 1 tab + '---help---'
e) 1 tab + '---help---' (correct indentation)
f) 1 tab + 1 space + '---help---'
g) 1 tab + 2 spaces + '---help---'

In order to convert all of them to 1 tab + 'help', I ran the
following commend:

$ find . -name 'Kconfig*' | xargs sed -i 's/^[[:space:]]*---help---/\thelp/'

Signed-off-by: Masahiro Yamada <[email protected]>

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macintosh/ams-input: switch to using input device polling mode

Now that instances of input_dev support polling mode natively,
we no longer need to create input_polled_dev instance.

Signed-off-by: D

macintosh/ams-input: switch to using input device polling mode

Now that instances of input_dev support polling mode natively,
we no longer need to create input_polled_dev instance.

Signed-off-by: Dmitry Torokhov <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Link: https://lore.kernel.org/r/20191002214854.GA114387@dtor-ws

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macintosh: Fix Kconfig indentation

Adjust indentation from spaces to tab (+optional two spaces) as in
coding style with command like:
$ sed -e 's/^ /\t/' -i */Kconfig

Signed-off-by: Krzyszt

macintosh: Fix Kconfig indentation

Adjust indentation from spaces to tab (+optional two spaces) as in
coding style with command like:
$ sed -e 's/^ /\t/' -i */Kconfig

Signed-off-by: Krzysztof Kozlowski <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

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treewide: Add SPDX license identifier - Makefile/Kconfig

Add SPDX license identifiers to all Make/Kconfig files which:

- Have no license information of any form

These files fall under the project

treewide: Add SPDX license identifier - Makefile/Kconfig

Add SPDX license identifiers to all Make/Kconfig files which:

- Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

GPL-2.0-only

Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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macintosh/via-pmu: Replace via-pmu68k driver with via-pmu driver

Now that the PowerMac via-pmu driver supports m68k PowerBooks,
switch over to that driver and remove the via-pmu68k driver.

Tested-b

macintosh/via-pmu: Replace via-pmu68k driver with via-pmu driver

Now that the PowerMac via-pmu driver supports m68k PowerBooks,
switch over to that driver and remove the via-pmu68k driver.

Tested-by: Stan Johnson <[email protected]>
Signed-off-by: Finn Thain <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Acked-by: Geert Uytterhoeven <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>

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macintosh/via-pmu: Explicitly specify CONFIG_PPC_PMAC dependencies

At present, CONFIG_ADB_PMU depends on CONFIG_PPC_PMAC. When this gets
relaxed to CONFIG_PPC_PMAC || CONFIG_MAC, those Kconfig symbo

macintosh/via-pmu: Explicitly specify CONFIG_PPC_PMAC dependencies

At present, CONFIG_ADB_PMU depends on CONFIG_PPC_PMAC. When this gets
relaxed to CONFIG_PPC_PMAC || CONFIG_MAC, those Kconfig symbols with
implicit deps on PPC_PMAC will need explicit deps. Add them now.
No functional change.

Tested-by: Stan Johnson <[email protected]>
Signed-off-by: Finn Thain <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>

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macintosh/via-pmu: Add support for m68k PowerBooks

Put #ifdefs around the Open Firmware, xmon, interrupt dispatch,
battery and suspend code. Add the necessary interrupt handling to
support m68k Powe

macintosh/via-pmu: Add support for m68k PowerBooks

Put #ifdefs around the Open Firmware, xmon, interrupt dispatch,
battery and suspend code. Add the necessary interrupt handling to
support m68k PowerBooks.

The pmu_kind value is available to userspace using the
PMU_IOC_GET_MODEL ioctl. It is not clear yet what hardware classes
are be needed to describe m68k PowerBook models, so pmu_kind is given
the provisional value PMU_UNKNOWN.

To find out about the hardware, user programs can use /proc/bootinfo
or /proc/hardware, or send the PMU_GET_VERSION command using /dev/adb.

Tested-by: Stan Johnson <[email protected]>
Signed-off-by: Finn Thain <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>

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m68k/mac: Replace via-maciisi driver with via-cuda driver

Change the device probe test in the via-cuda.c driver so it will load on
Egret-based machines too. Remove the now redundant via-maciisi.c dr

m68k/mac: Replace via-maciisi driver with via-cuda driver

Change the device probe test in the via-cuda.c driver so it will load on
Egret-based machines too. Remove the now redundant via-maciisi.c driver.

Tested-by: Stan Johnson <[email protected]>
Signed-off-by: Finn Thain <[email protected]>
Acked-by: Geert Uytterhoeven <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>

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macintosh: Remove dependency on IDE_GD_ATA if ADB_PMU_LED_DISK is selected

We can use the front led of powerbooks/ibooks to visualize disk activity
without the deprecated IDE_GD_ATA.

Signed-off-by:

macintosh: Remove dependency on IDE_GD_ATA if ADB_PMU_LED_DISK is selected

We can use the front led of powerbooks/ibooks to visualize disk activity
without the deprecated IDE_GD_ATA.

Signed-off-by: Elimar Riesebieter <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>

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powerpc: use the new LED disk activity trigger

- dts: rename 'ide-disk' to 'disk-activity'
- defconfig: rename 'ADB_PMU_LED_IDE' to 'ADB_PMU_LED_DISK'

Cc: Joseph Jezak <[email protected]>
Cc: Jörg

powerpc: use the new LED disk activity trigger

- dts: rename 'ide-disk' to 'disk-activity'
- defconfig: rename 'ADB_PMU_LED_IDE' to 'ADB_PMU_LED_DISK'

Cc: Joseph Jezak <[email protected]>
Cc: Jörg Sommer <[email protected]>
Signed-off-by: Stephan Linz <[email protected]>
Signed-off-by: Jacek Anaszewski <[email protected]>

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drivers/macintosh: adb: fix misleading Kconfig help text

CONFIG_INPUT_KEYBDEV does not exist and no additional keyboard-specific
options are needed to get the keyboard working.

Signed-off-by: Aaro

drivers/macintosh: adb: fix misleading Kconfig help text

CONFIG_INPUT_KEYBDEV does not exist and no additional keyboard-specific
options are needed to get the keyboard working.

Signed-off-by: Aaro Koskinen <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>

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macintosh: therm_pm72: delete deprecated driver

The new driver is around for more than 2 years now, so the old one can
go. Getting rid of it helps the removal of the legacy .attach_adapter
callback

macintosh: therm_pm72: delete deprecated driver

The new driver is around for more than 2 years now, so the old one can
go. Getting rid of it helps the removal of the legacy .attach_adapter
callback of the I2C subsystem.

Signed-off-by: Wolfram Sang <[email protected]>
Acked-by: Benjamin Herrenschmidt <[email protected]>

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m68k/mac: Mark Mac IIsi ADB driver BROKEN

As reported by Finn Thain, the Mac IIsi ADB driver should be disabled
because it will crash.

Signed-off-by: Geert Uytterhoeven <[email protected]>

powerpc/pmu: Fix ADB_PMU_LED_IDE dependencies

for quite some time the following is printed (twice) after doing
"make oldconfig":

[...]
scripts/kconfig/conf --oldconfig Kconfig
warning: (ADB_PMU_LED

powerpc/pmu: Fix ADB_PMU_LED_IDE dependencies

for quite some time the following is printed (twice) after doing
"make oldconfig":

[...]
scripts/kconfig/conf --oldconfig Kconfig
warning: (ADB_PMU_LED_IDE) selects LEDS_TRIGGER_IDE_DISK which has unmet direct dependencies (NEW_LEDS && IDE_GD_ATA && LEDS_TRIGGERS)
warning: (ADB_PMU_LED_IDE) selects LEDS_TRIGGER_IDE_DISK which has unmet direct dependencies (NEW_LEDS && IDE_GD_ATA && LEDS_TRIGGERS)

The following patch causes ADB_PMU_LED to depend on IDE_GD_ATA, so that
the options above are only available when IDE_GD_ATA is actually selected
and thus eliminates the warning.

Signed-off-by: Christian Kujau <[email protected]>
Signed-off-by: Benjamin Herrenschmidt <[email protected]>

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drivers/macintosh: remove depends on CONFIG_EXPERIMENTAL

The CONFIG_EXPERIMENTAL config item has not carried much meaning for a
while now and is almost always enabled by default. As agreed during th

drivers/macintosh: remove depends on CONFIG_EXPERIMENTAL

The CONFIG_EXPERIMENTAL config item has not carried much meaning for a
while now and is almost always enabled by default. As agreed during the
Linux kernel summit, remove it from any "depends on" lines in Kconfigs.

CC: Benjamin Herrenschmidt <[email protected]>
Signed-off-by: Kees Cook <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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powerpc/powermac: New windfarm driver for PowerMac G5 (AGP) and Xserve G5

This replaces the old therm_pm72 using the same windfarm infrastructure
that was used for other PowerMac G5 models. The fan

powerpc/powermac: New windfarm driver for PowerMac G5 (AGP) and Xserve G5

This replaces the old therm_pm72 using the same windfarm infrastructure
that was used for other PowerMac G5 models. The fan speeds and sensors
should now be visible in the same location in sysfs.

The driver is split into separate core modules for PowerMac7,2 (and 7,3)
and RackMac3,1, with a lot of the shared code now in the separate sensor
and control modules.

Signed-off-by: Benjamin Herrenschmidt <[email protected]>

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leds: fix up dependencies

It's not useful to build LED triggers when there's no LEDs that can be
triggered by them. Therefore, fix up the dependencies so that this
cannot happen, and fix a few user

leds: fix up dependencies

It's not useful to build LED triggers when there's no LEDs that can be
triggered by them. Therefore, fix up the dependencies so that this
cannot happen, and fix a few users that select triggers to depend on
LEDS_CLASS as well (there is also one user that also selects LEDS_CLASS,
which is OK).

Signed-off-by: Johannes Berg <[email protected]>
Reported-by: Randy Dunlap <[email protected]>
Acked-by: Randy Dunlap <[email protected]>
Tested-by: Ingo Molnar <[email protected]>
Cc: Arnd Hannemann <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Richard Purdie <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

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Move ams driver to macintosh

The ams driver isn't a hardware monitoring driver, so it shouldn't
live under driver/hwmon. drivers/macintosh seems much more
appropriate, as the driver is only useful o

Move ams driver to macintosh

The ams driver isn't a hardware monitoring driver, so it shouldn't
live under driver/hwmon. drivers/macintosh seems much more
appropriate, as the driver is only useful on PowerBooks and iBooks.

Signed-off-by: Jean Delvare <[email protected]>
Cc: Guenter Roeck <[email protected]>
Cc: Stelian Pop <[email protected]>
Cc: Michael Hanselmann <[email protected]>
Cc: Benjamin Herrenschmidt <[email protected]>
Cc: Grant Likely <[email protected]>

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Input: Mac button emulation - allow compiling as a module

Not all systems require Mac-style button emulation, however distributions
enable it by default so it is readily available. Allow compiling

Input: Mac button emulation - allow compiling as a module

Not all systems require Mac-style button emulation, however distributions
enable it by default so it is readily available. Allow compiling it as a
module so it can be loaded only on systems that actually require it.

Signed-off-by: Dmitry Torokhov <[email protected]>

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Input: Mac button emulation - implement as an input filter

Current implementation of Mac mouse button emulation plugs into legacy
keyboard driver, converts certain keys into button events on a separ

Input: Mac button emulation - implement as an input filter

Current implementation of Mac mouse button emulation plugs into legacy
keyboard driver, converts certain keys into button events on a separate
device, and suppresses the real events from reaching tty. This worked
well enough until user space started using evdev which was completely
unaware of this arrangement and kept sending original key presses to
its users. Change the implementation to use newly added input filter
framework so that original key presses are not transmitted to any
handlers.

As a bonus remove SYSCTL dependencies from the code and use Kconfig
instead; also do not create the emulated mouse device until user
activates emulation.

Signed-off-by: Dmitry Torokhov <[email protected]>

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