Merge tag 'renesas-arm-soc-for-v4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc

Renesas ARM Based SoC Updates for v4.20

* Rework the PMIC IRQ line quirk to use DT rather than hard coded topology
* Convert to SPDX identifiers
* Convert to using %pOFn instead of device_node.name
* Remove the no longer needed ARCH_SHMOBILE Kconfig symbol
* RZ/G1N (r8a7744) SoC: Add basic SoC and debug-ll support
* R-Car H1 (r8a7779) SoC: remove unused includes

* tag 'renesas-arm-soc-for-v4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: Rework the PMIC IRQ line quirk
  ARM: debug-ll: Add support for r8a7744
  ARM: shmobile: r8a7744: Basic SoC support
  ARM: shmobile: convert to SPDX identifiers
  ARM: shmobile: Convert to using %pOFn instead of device_node.name
  ARM: shmobile: Remove the ARCH_SHMOBILE Kconfig symbol
  ARM: shmobile: r8a7779: Remove unused includes
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

With this I assume maintainership of the Integrator, Versatile
and RealView ARM reference machines.

It's no big secret that I've been maintaining them for years,
but might as well make it official so I get the mails and
don't miss anything.

I have also included some drivers that are closely associated
with the ARM reference designs and yet orphaned in the
MAINTAINERS file. I can surely maintain them too, or route
the question to the right people so it doesn't fall on the
floor of upward to the subsystem maintainers who have too much
to do already as it is.

Cc: Russell King <linux@armlinux.org.uk>
Cc: Rob Herring <robh@kernel.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Olof Johansson <olof@lixom.net>
Acked-by: Michael Turquette <mturquette@baylibre.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'omap-for-v4.20/omap1-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc

A series of omap1 gpio changes for ams-delta

Janusz Krzysztofik has cleaned up ams-delta gpio usage along with
generic gpio framework improvments. This series contains the omap1
specific clean-up for ams-delta modem and unused gpios.

Note that this conflicts with the gpio-omap changes queued into
an immutable gpio branch ib-omap for the gpio-omap.h header file.
The merge resolution is to drop the IS_BUILTIN(CONFIG_GPIO_OMAP)
section and keep the #endif tagged for __ASSEMBLER__.

* tag 'omap-for-v4.20/omap1-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP1: ams-delta: Don't request unused GPIOs
  ARM: OMAP1: ams-delta-fiq: Use <linux/platform_data/gpio-omap.h>
  ARM: OMAP1: ams-delta: register MODEM device earlier
  ARM: OMAP1: ams-delta: initialize latch2 pins to safe values
  ARM: OMAP1: ams-delta: assign MODEM IRQ from GPIO descriptor
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'omap-for-v4.20/soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc

SoC changes for omap variants

These changes improve support for clkctrl clocks to deal with
split memory ranges for clkctrl providers. And to use %pOFn
instead of device_node.name.

* tag 'omap-for-v4.20/soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: Convert to using %pOFn instead of device_node.name
  ARM: OMAP2+: hwmod_core: improve the support for clkctrl clocks
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

This architecture, used for running in QEMU, runs just fine when
compiled in big-endian mode. So enable it. This is enabled in exactly
the same way that it is for other platforms (such as vexpress) that also
support big-endian mode in QEMU successfully.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

ARM: Xilinx Zynq SoC patches for v4.20

- Convert to using %pOFn instead of device_node.name in slcr driver

* tag 'zynq-soc-for-v4.20' of https://github.com/Xilinx/linux-xlnx:
  ARM: zynq: Convert to using %pOFn instead of device_node.name
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

AT91 SoC for 4.20

 - rename MAINTAINERS entries and change maintainers
 - two pm cleanups

* tag 'at91-4.20-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux:
  MAINTAINERS: sdhci: move the Microchip entry to proper location
  MAINTAINERS: move former ATMEL entries to proper MICROCHIP location
  MAINTAINERS: remove the / ATMEL string from MICROCHIP entries
  MAINTAINERS: iio: add co-maintainer to SAMA5D2-compatible ADC driver
  MAINTAINERS: pwm: add entry for Microchip pwm driver
  MAINTAINERS: dmaengine: add files to Microchip dma entry
  MAINTAINERS: USB: change maintainer for Microchip USBA gadget driver
  MAINTAINERS: ASoC: change maintainer for Microchip ALSA drivers
  MAINTAINERS: media: change Microchip ISI, ISC maintainers
  MAINTAINERS: update entry for Microchip NAND driver support
  MAINTAINERS: ARM: at91: add co-maintainer for ARM/Microchip
  ARM: at91: pm: call put_device instead of of_node_put in at91_pm_config_ws
  ARM: at91: pm: remove pm_bu initialization in at91_pm_backup_init()
Signed-off-by: Olof Johansson <olof@lixom.net>

All SDHCI controller drivers are gathered at the same place, add the
Microchip one there.
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

Standardize the Microchip / Atmel entries with the same form and move them
so that they are all located at the same place, under the newer MICROCHIP
banner.
Only modifications to the titles of the entries are done in this patch.
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

No need to keep this additional string as it can puzzle people
while adding new driver's entries.
Move the NAND entry to keep it alphabetically ordered.
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

Add Eugen as co-maintainer with Ludovic of Microchip SAMA5D2-compatible
ADC driver.
Also add the binding documentation/include as file pattern.
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

Add the entry that was missing for pwm-atmel.c driver. Add binding file
as well.
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

In Microchip DMA (HDMA actually) entry, add the missing files for
better matching with get_maintainer.pl tool.
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

Hand over this USB gadget driver to Cristian: atmel_usba.
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

Hand over to Codrin for Microchip Audio SoC drivers in "atmel"
directory.
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

For ISC, Songjun is not with Microchip anymore, his address shouldn't be
reachable.
For ISI, Eugen can handle the maintenance now.
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

Replace the Microchip/Atmel NAND controller driver maintainer
by removing Josh and adding Tudor.

Cc: Josh Wu <rainyfeeling@outlook.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

Add Ludovic as a new co-maintainer for the AT91 Microchip ARM
sub-architecture.
Add the newly created kernel.org group git tree that we will use
from now on.

Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

of_find_device_by_node takes a reference to the struct device when it
finds a match via get_device. but it fails to put_device in
at91_pm_config_ws, for_each_matching_node_and_match will get and put
the node properly, there is no need to call the of_put_node. Therefore,
just call put_device instead of of_node_put in at91_pm_config_ws.

Fixes: d7484f5c ("ARM: at91: pm: configure wakeup sources for ULP1 mode")
Suggested-by: Claudiu Beznea <Claudiu.Beznea@microchip.com>
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

Add mailing list for stm32 architecture.
Add "stm" pattern to not miss some drivers/directories when asking for maintainers.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: Olof Johansson <olof@lixom.net>

GPIOs with no kernel drivers can still be used from user space, don't
request them from the board file.
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Instead of defining symbols already defined in
linux/platform_data/gpio-omap.h, use that header file.

Since we include the header into an assembler code, prevent C only bits
from being read in.
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Amstrad Delta MODEM device used to be initialized at arch_initcall
before it was once moved to late_initcall by commit f7519d8c ("ARM:
OMAP1: ams-delta: register latch dependent devices later"). The purpose
of that change was to postpone initialization of devices which depended
on latch2 pins until latch2 converted to GPIO device was ready.

After recent fixes to GPIO handling, it was possible to moove
registration of most of those device back to where they were before.
The same can be safely done with the MODEM device as initialization
of GPIO pins it depends on was moved to machine_init by preceding
patch.

Move registration of the MODEM device to arch_initcall_sync, not to
arch_initcall, so it is never exposed to potential conflict in
registration order hazard against OMAP serial ports.
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Latch2 pins control a number of on-board devices, namely LCD, NAND,
MODEM and CODEC.  Those pins used to be initialized with safe values
from init_machine before that operation was:
1) moved to late_initcall in preparation for conversion of latch2 to
GPIO device - see commit f7519d8c ("ARM: OMAP1: ams-delta: register
latch dependent devices later"),
2) replaced with non-atomic initialization performed by means of
gpio_request_array() - see commit 937eb4bb ("ARM: OMAP1: ams-delta:
convert latches to basic_mmio_gpio"),
3) made completely asynchronous by delegation of GPIO request
operations performed on subsets of pins to respective device drivers in
subsequent commits.

One visible negative result of that disintegration was corrupt keyboard
data reported by serio driver, recently fixed by commit 41f8fee3
("ARM: OMAP1: ams-delta: Hog "keybrd_dataout" GPIO pin").

Moreover, initialization of LATCH2_PIN_MODEM_CODEC still performed with
ams_delta_latch2_write() wrapper from late_init() is now done on not
requested GPIO pin.

Reintroduce atomic initialization of latch2 pins at machine_init to
prevent from random values potentially corrupting NAND data or maybe
even destroing other hardware.  Also take care of MODEM/CODEC related
pins so MODEM device probe succeeds even if latch2 GPIO device or
dependent regulator is not ready and CODEC can be reached over the
MODEM even if audio driver doesn't take control over
LATCH2_PIN_MODEM_CODEC.

Once done, remove the no longer needed GPIO based implementation of
ams_delta_latch_write() and its frontend macro.
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
[tony@atomide.com: updated for the header location to remove dependency]
Signed-off-by: Tony Lindgren <tony@atomide.com>

Don't request MODEM IRQ GPIO by its global number in
ams_delta_modem_init().  Instead, obtain its GPIO descriptor
and assign related IRQ to the MODEM.  Do that from
omap_gpio_deps_init(), where the chip is already looked up.  Then, in
ams_delta_modem_init(), just check for the IRQ number having been
already assigned.
Signed-off-by: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Rather than hard-coding the quirk topology, which stopped scaling,
parse the information from DT. The code looks for all compatible
PMICs -- da9063 and da9210 -- and checks if their IRQ line is tied
to the same pin. If so, the code sends a matching sequence to the
PMIC to deassert the IRQ.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Acked-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be> (on Koelsch)
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

Enable low-level debugging support for RZ/G1N (R8A7744). RZ/G1N uses
SCIF0 for the debug console.
Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

Add minimal support for the RZ/G1N (R8A7744) SoC.
Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

This patch updates license to use SPDX-License-Identifier
instead of verbose license text.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.

Cc: "Benoît Cousson" <bcousson@baylibre.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: linux-omap@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Rob Herring <robh@kernel.org>
[tony@atomide.com: updated against clkctrl and rt_idx changes]
Signed-off-by: Tony Lindgren <tony@atomide.com>

This patch adds support for split memory ranges for clkctrl providers.
This is necessary to support the coming clockdomain based split of
clkctrl provider ranges, instead of the current CM instance based one.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

It's been told to me a few times that this kernel module
should not exist, instead we should use the loopback test
from userspace if need be. If a kernel module is required
for testing SPI, it should be generic and put in
drivers/spi/*.

Delete this driver.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>

In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.

Cc: Michal Simek <michal.simek@xilinx.com>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

Pull devicetree updates from Rob Herring:
 "A couple of new helper functions in preparation for some tree wide
  clean-ups.

  I'm sending these new helpers now for rc2 in order to simplify the
  dependencies on subsequent cleanups across the tree in 4.20"

* tag 'devicetree-fixes-for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  of: Add device_type access helper functions
  of: add node name compare helper functions
  of: add helper to lookup compatible child node

Pull ARM SoC fixes from Olof Johansson:
 "First batch of fixes post-merge window:

   - A handful of devicetree changes for i.MX2{3,8} to change over to
     new panel bindings. The platforms were moved from legacy
     framebuffers to DRM and some development board panels hadn't yet
     been converted.

   - OMAP fixes related to ti-sysc driver conversion fallout, fixing
     some register offsets, no_console_suspend fixes, etc.

   - Droid4 changes to fix flaky eMMC probing and vibrator DTS mismerge.

   - Fixed 0755->0644 permissions on a newly added file.

   - Defconfig changes to make ARM Versatile more useful with QEMU
     (helps testing).

   - Enable defconfig options for new TI SoC platform that was merged
     this window (AM6)"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  arm64: defconfig: Enable TI's AM6 SoC platform
  ARM: defconfig: Update the ARM Versatile defconfig
  ARM: dts: omap4-droid4: Fix emmc errors seen on some devices
  ARM: dts: Fix file permission for am335x-osd3358-sm-red.dts
  ARM: imx_v6_v7_defconfig: Select CONFIG_DRM_PANEL_SEIKO_43WVF1G
  ARM: mxs_defconfig: Select CONFIG_DRM_PANEL_SEIKO_43WVF1G
  ARM: dts: imx23-evk: Convert to the new display bindings
  ARM: dts: imx23-evk: Move regulators outside simple-bus
  ARM: dts: imx28-evk: Convert to the new display bindings
  ARM: dts: imx28-evk: Move regulators outside simple-bus
  Revert "ARM: dts: imx7d: Invert legacy PCI irq mapping"
  arm: dts: am4372: setup rtc as system-power-controller
  ARM: dts: omap4-droid4: fix vibrations on Droid 4
  bus: ti-sysc: Fix no_console_suspend handling
  bus: ti-sysc: Fix module register ioremap for larger offsets
  ARM: OMAP2+: Fix module address for modules using mpu_rt_idx
  ARM: OMAP2+: Fix null hwmod for ti-sysc debug

Pull x86 fixes from Thomas Gleixner:
 "Speculation:

   - Make the microcode check more robust

   - Make the L1TF memory limit depend on the internal cache physical
     address space and not on the CPUID advertised physical address
     space, which might be significantly smaller. This avoids disabling
     L1TF on machines which utilize the full physical address space.

   - Fix the GDT mapping for EFI calls on 32bit PTI

   - Fix the MCE nospec implementation to prevent #GP

  Fixes and robustness:

   - Use the proper operand order for LSL in the VDSO

   - Prevent NMI uaccess race against CR3 switching

   - Add a lockdep check to verify that text_mutex is held in
     text_poke() functions

   - Repair the fallout of giving native_restore_fl() a prototype

   - Prevent kernel memory dumps based on usermode RIP

   - Wipe KASAN shadow stack before rewinding the stack to prevent false
     positives

   - Move the AMS GOTO enforcement to the actual build stage to allow
     user API header extraction without a compiler

   - Fix a section mismatch introduced by the on demand VDSO mapping
     change

  Miscellaneous:

   - Trivial typo, GCC quirk removal and CC_SET/OUT() cleanups"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/pti: Fix section mismatch warning/error
  x86/vdso: Fix lsl operand order
  x86/mce: Fix set_mce_nospec() to avoid #GP fault
  x86/efi: Load fixmap GDT in efi_call_phys_epilog()
  x86/nmi: Fix NMI uaccess race against CR3 switching
  x86: Allow generating user-space headers without a compiler
  x86/dumpstack: Don't dump kernel memory based on usermode RIP
  x86/asm: Use CC_SET()/CC_OUT() in __gen_sigismember()
  x86/alternatives: Lockdep-enforce text_mutex in text_poke*()
  x86/entry/64: Wipe KASAN stack shadow before rewind_stack_do_exit()
  x86/irqflags: Mark native_restore_fl extern inline
  x86/build: Remove jump label quirk for GCC older than 4.5.2
  x86/Kconfig: Fix trivial typo
  x86/speculation/l1tf: Increase l1tf memory limit for Nehalem+
  x86/spectre: Add missing family 6 check to microcode check

Pull CPU hotplug fix from Thomas Gleixner:
 "Remove the stale skip_onerr member from the hotplug states"

* 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  cpu/hotplug: Remove skip_onerr field from cpuhp_step structure

Pull core fixes from Thomas Gleixner:
 "A small set of updates for core code:

   - Prevent tracing in functions which are called from trace patching
     via stop_machine() to prevent executing half patched function trace
     entries.

   - Remove old GCC workarounds

   - Remove pointless includes of notifier.h"

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  objtool: Remove workaround for unreachable warnings from old GCC
  notifier: Remove notifier header file wherever not used
  watchdog: Mark watchdog touch functions as notrace