The MMP_SRAM code is no longer used by the tdma driver because
the Kconfig symbol is not selected, so remove it along with its
former callsite.
Acked-By: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

The old-style board files were marked as 'unused' a while ago
and can now be removed for good, leaving only devicetree based
boot support.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

The behavior of the MMP platform code depends on whether the
CPU_PXA168/CPU_PXA910/CPU_MMP2 symbols are enabled or not.

I believe the intention here was that these can be left disabled for
a pure DT-only build, but it's not clear if that actually works. At
the minimum, the cpu_is_pxa168() and cpu_is_pxa910() checks behave
differently, which causes changes in the power management code.

For the moment, make the behavior depend on whether CONFIG_ATAGS is set
or not, to make it easier to bisect the removal of the old code later.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

The sa11xx platform has two cpufreq drivers, one for the older
StrongARM1100 SoC, and a second one for StrongARM1110. After
the removal of most SA1100 based machines, this driver is unused,
and only the sa1110-cpufreq driver remains.
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

IRDA support is long gone, so there is no need to declare the
platform device data.

See-also: d64c2a76 ("staging: irda: remove the irda network stack and drivers")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

fixup sa1100 irda
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

The Cerf, H3100, Badge4, Hackkit, LART, NanoEngine, PLEB, Shannon and
Simpad machines were all marked as unused as there are no known users
left. Remove all of these, along with references to them in defconfig
files and drivers.

Four machines remain now: Assabet, Collie (Zaurus SL5500), iPAQ H3600
and Jornada 720, each of which had one person still using them, with
Collie also being supported in Qemu.

Cc: Peter Chubb <peter.chubb@unsw.edu.au>
Cc: Stefan Eletzhofer <stefan.eletzhofer@eletztrick.de>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Lee Jones <lee@kernel.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Stefan is still trying to get this machine working again, so it won't
be removed in this round.

Cc: Stefan Lehner <stefan-lehner@aon.at>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

The davinci dm3xx/dm644x platforms are gone now, and the remaining
da8xx platforms do not use the vpbe driver, so the driver can be
removed as well.
Acked-by: Lad Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

This driver was for the davinci dm644x and dm3xx platforms that are
now removed from the kernel, so there are no more users.
Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Acked-by: Lad Prabhakar <prabhakar.csengg@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

The aintc driver was used on Davinci DM3xx and DM64xx SoCs, all of
which got dropped from Linux, so this driver is orphaned as well.
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Acked-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

The dm644x and dm3xx SoCs have been removed, as have the
da850_evm/da830_evm machines, the remaining machines all use the
DT based probing and do not use the vcif driver.
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

The dm365evm board was removed, and no other users of this
device exist.
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

The davinci dm3xx machines are all removed, so the clk driver
is no longer needed. The da8xx platforms are now using DT
exclusively, so those drivers remain untouched.
Reviewed-by: David Lechner <david@lechnology.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

With the board file support gone, and the platform using
DT only, a lot of the remaining code is no longer referenced
and can be removed.

Technically, the DT file only references DA850, but since that
is very similar to DA830, I'm leaving the latter.
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Support for all the dm3xx/dm64xx SoCs is no longer
available, so drop all other references to those.
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

All Kconfig entries marked as "depends on UNUSED_BOARD_FILES"
and their direct dependencies are removed here as planned.
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

The OMAP7xx/OMAP8xx support was removed since all of its boards
have no remaining users. Remove its spi driver as well.

Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Cc: linux-omap@vger.kernel.org
Cc: Cory Maccarrone <darkstar6262@gmail.com>
Cc: Fabrice Crohas <fcrohas@gmail.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

A number of omap1 based board files got removed, so the corresponding
framebuffer drivers are no longer used. The remaining ones are for
ams_delta, osk and palmTE, which are still part of the mainline kernel.

Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Cc: linux-omap@vger.kernel.org
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Angelo Arrifano <miknix@gmail.com>
Cc: Imre Deak <imre.deak@intel.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

With the H2 and H3 board support removed from the driver, there
are actually no other users, so the entire driver can go away.

Link: https://lore.kernel.org/linux-arm-kernel/20221019173437.GB41568@darkstar.musicnaut.iki.fi/Suggested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

The only bit that is still in use is the OMAP_IH2_*_*
macros, so move them into the existing hardware.h file.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

The OMAP15xx/OMAP16xx variants are exactly the same, so merge them
into one.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

After the removal of the unused board files, I went through the
omap1 code to look for code that no longer has any callers
and remove that.

In particular, support for the omap7xx/omap8xx family is now
completely unused, so I'm only leaving omap15xx/omap16xx/omap59xx.

Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Cc: linux-omap@vger.kernel.org
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

As Aaro Koskinen points out, nobody should have this one any more,
and I noticed the code is rather ugly, so let's removed it but
keep the rest of the OSK support that is still used.

Link: https://lore.kernel.org/linux-arm-kernel/20221020193511.GB3019@t60.musicnaut.iki.fi/Signed-off-by: Arnd Bergmann <arnd@arndb.de>

All board support that was marked as 'unused' earlier can
now be removed, leaving the five machines that that still
had someone using them in 2022, or that are supported in
qemu.

Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: linux-omap@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Nobody seems to have a CATS machine any more, so remove
it now, leaving only NetWinder and EBSA285.

Cc: Russell King <linux@armlinux.org.uk>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

The iop32x platform was removed, and its gpio driver is now
orphaned.

Cc: Lennert Buytenhek <buytenh@wantstofly.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

This was marked as unused in 5.19 and can now be removed

Cc: Lennert Buytenhek <kernel@wantstofly.org>
Cc: Martin Michlmayr <tbm@cyrius.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Wolfram Sang <wsa@kernel.org> # for I2C
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

This is no longer used anywhere, which means we can kill off
one link to gpio numbers.

Cc: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

As planned earlier, all board support that was marked unused can be
removed now after nobody explicitly asked for these to be kept.

In particular, all of the reference designs get removed now, as these
are not commonly used productively any more. Also, the machines that
were not supported by Debian or the Debian_on_Buffalo group because of
limitations with RAM size are gone.

Cc: Lennert Buytenhek <kernel@wantstofly.org>
Cc: Nicolas Pitre <nico@fluxnic.net>
Cc: Imre Kaloz <kaloz@openwrt.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

This board is still being worked on by the Debian-on-Buffalo
project, so let's leave it in the tree for now.

Link: https://github.com/1000001101000/Debian_on_Buffalo
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Gregory Clement <gregory.clement@bootlin.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

A couple of ep93xx board files were unused and got removed, so
the corresponding ASoC support can also be removed.

Cc: Mika Westerberg <mika.westerberg@iki.fi>
Cc: Ryan Mallon <rmallon@gmail.com>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

These five board files were marked as unused a while ago, and
nobody wanted to keep them around for longer, so remove them
now.

We still have the edb93xx, visision_ep9307 and ts72xx files,
which can hopefully be converted to device tree in the future.

Cc: Lennert Buytenhek <kernel@wantstofly.org>
Cc: Hubert Feurstein <hubert.feurstein@contec.at>
Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

The cns3xxx platform is gone, so this driver is now orphaned.

Cc: Krzysztof Halasa <khalasa@piap.pl>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

cns3xxx was marked as unused a while ago, and gets removed
entirely now.
Acked-by: Krzysztof Hałasa <khalasa@piap.pl>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Going through the entries of recently removed machine types,
I found these two that were removed a long time ago.
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

In some randconfig builds, the asm/irq.h header is not included
in gpio15xx.c, so add an explicit include to avoid a build fialure:

In file included from arch/arm/mach-omap1/gpio15xx.c:15:
arch/arm/mach-omap1/irqs.h:99:34: error: 'NR_IRQS_LEGACY' undeclared here (not in a function)
   99 | #define IH2_BASE                (NR_IRQS_LEGACY + 32)
      |                                  ^~~~~~~~~~~~~~
arch/arm/mach-omap1/irqs.h:105:38: note: in expansion of macro 'IH2_BASE'
  105 | #define INT_MPUIO               (5 + IH2_BASE)
      |                                      ^~~~~~~~
arch/arm/mach-omap1/gpio15xx.c:28:27: note: in expansion of macro 'INT_MPUIO'
   28 |                 .start  = INT_MPUIO,
      |                           ^~~~~~~~~
Acked-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

While compile-testing randconfig builds for the upcoming boardfile
removal, I noticed that an earlier patch of mine was completely
broken, and the introduction of CONFIG_ARCH_OMAP1_ANY only replaced
one set of build failures with another one, now resulting in
link failures like

ld: drivers/video/fbdev/omap/omapfb_main.o: in function `omapfb_do_probe':
drivers/video/fbdev/omap/omapfb_main.c:1703: undefined reference to `omap_set_dma_priority'
ld: drivers/dma/ti/omap-dma.o: in function `omap_dma_free_chan_resources':
drivers/dma/ti/omap-dma.c:777: undefined reference to `omap_free_dma'
drivers/dma/ti/omap-dma.c:1685: undefined reference to `omap_get_plat_info'
ld: drivers/usb/gadget/udc/omap_udc.o: in function `next_in_dma':
drivers/usb/gadget/udc/omap_udc.c:820: undefined reference to `omap_get_dma_active_status'

I tried reworking it, but the resulting patch ended up much bigger than
simply avoiding the original problem of unused-function warnings like

arch/arm/mach-omap1/mcbsp.c:76:30: error: unused variable 'omap1_mcbsp_ops' [-Werror,-Wunused-variable]

As a result, revert the previous fix, and rearrange the code that
produces warnings to hide them. For mcbsp, the #ifdef check can
simply be removed as the cpu_is_omapxxx() checks already achieve
the same result, while in the io.c the easiest solution appears to
be to merge the common map bits into each soc specific portion.
This gets cleaned in a nicer way after omap7xx support gets dropped,
as the remaining SoCs all have the exact same I/O map.

Fixes: 615dce5b ("ARM: omap1: fix build with no SoC selected")
Cc: stable@vger.kernel.org
Acked-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

After commit b5aaaa66 ("ARM: pxa: add Kconfig dependencies for
ATAGS based boards"), the default PXA build no longer includes support
for the board files that are considered unused.

As a side-effect of this, the PXA310 and PXA320 support is not built
into the kernel any more, even though it should work in principle as
long as the symbols are enabled. As Robert points out, there are dts
files for zylonite and cm-x300, though those have not made it into the
mainline kernel.

Link: https://lore.kernel.org/linux-arm-kernel/m2sfglh02h.fsf@free.fr/Reported-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Due to several bugs caused by timers being re-armed after they are
shutdown and just before they are freed, a new state of timers was added
called "shutdown".  After a timer is set to this state, then it can no
longer be re-armed.

The following script was run to find all the trivial locations where
del_timer() or del_timer_sync() is called in the same function that the
object holding the timer is freed.  It also ignores any locations where
the timer->function is modified between the del_timer*() and the free(),
as that is not considered a "trivial" case.

This was created by using a coccinelle script and the following
commands:

    $ cat timer.cocci
    @@
    expression ptr, slab;
    identifier timer, rfield;
    @@
    (
    -       del_timer(&ptr->timer);
    +       timer_shutdown(&ptr->timer);
    |
    -       del_timer_sync(&ptr->timer);
    +       timer_shutdown_sync(&ptr->timer);
    )
      ... when strict
          when != ptr->timer
    (
            kfree_rcu(ptr, rfield);
    |
            kmem_cache_free(slab, ptr);
    |
            kfree(ptr);
    )

    $ spatch timer.cocci . > /tmp/t.patch
    $ patch -p1 < /tmp/t.patch

Link: https://lore.kernel.org/lkml/20221123201306.823305113@linutronix.de/Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Acked-by: Pavel Machek <pavel@ucw.cz> [ LED ]
Acked-by: Kalle Valo <kvalo@kernel.org> [ wireless ]
Acked-by: Paolo Abeni <pabeni@redhat.com> [ networking ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>