pinctrl: sirf: add missing put_device() call in sirfsoc_gpio_probe()

A coccicheck run provided information like the following:

drivers/pinctrl/sirf/pinctrl-sirf.c:798:2-8: ERROR: missing put_device;
call of_find_device_by_node on line 792, but without a corresponding
object release within this function.

Generated by: scripts/coccinelle/free/put_device.cocci

Thus add a jump target to fix the exception handling for this
function implementation.

Fixes: 5130216265f6 ("PINCTRL: SiRF: add GPIO and GPIO irq support in CSR SiRFprimaII")
Signed-off-by: yu kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20200603013532.755220-1-yukuai3@huawei.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: imxl: Fix an error handling path in 'imx1_pinctrl_core_probe()'

When 'pinctrl_register()' has been turned into 'devm_pinctrl_register()',
an error handling path has not been updated.

Axe a now unneeded 'pinctrl_unregister()'.

Fixes: e55e025d1687 ("pinctrl: imxl: Use devm_pinctrl_register() for pinctrl registration")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/20200530201952.585798-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: bcm2835: Add support for wake-up interrupts

Leverage the IRQCHIP_MASK_ON_SUSPEND flag in order to avoid having to
specifically treat the GPIO interrupts during suspend and resume, and
simply implement an irq_set_wake() callback that is responsible for
enabling the parent wake-up interrupt as a wake-up interrupt.

To avoid allocating unnecessary resources for other chips, the wake-up
interrupts are only initialized if we have a brcm,bcm7211-gpio
compatibility string.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20200531001101.24945-5-f.fainelli@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: bcm2835: Match BCM7211 compatible string

The BCM7211 SoC uses the same pinconf_ops as the ones defined for the
BCM2711 SoC, match the compatible string and use the correct set of
options.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20200531001101.24945-4-f.fainelli@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

dt-bindings: pinctrl: Document optional BCM7211 wake-up interrupts

BCM7211 supports wake-up interrupts in the form of optional interrupt
lines, one per bank, plus the "all banks" interrupt line.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200531001101.24945-3-f.fainelli@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

dt-bindings: pinctrl: Document 7211 compatible for brcm, bcm2835-gpio.txt

Document the brcm,bcm7211-gpio compatible string in the
brcm,bcm2835-gpio.txt document.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200531001101.24945-2-f.fainelli@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

dt-bindings: pinctrl: stm32: Add missing interrupts property

Driver use interrupt-parent field so update the bindings to allow it.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200513145935.22493-15-benjamin.gaignard@st.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: at91-pio4: Add COMPILE_TEST support

Add COMPILE_TEST support to the AT91 PIO4 pinctrl driver for better compile
testing coverage.

Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Link: https://lore.kernel.org/r/1590234326-2194-2-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: Fix return value about devm_platform_ioremap_resource()

When call function devm_platform_ioremap_resource(), we should use IS_ERR()
to check the return value and return PTR_ERR() if failed.

Fixes: 4b024225c4a8 ("pinctrl: use devm_platform_ioremap_resource() to simplify code")
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Link: https://lore.kernel.org/r/1590234326-2194-1-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Merge tag 'sh-pfc-for-v5.8-tag2' of git://git./linux/kernel/git/geert/renesas-drivers into devel

pinctrl: sh-pfc: Updates for v5.8 (take two)

  - Add support for the new RZ/G1H (r8a7742) SoC,
  - Minor fixes and improvements.

MAINTAINERS: Renesas Pin Controllers are supported

Change "PIN CONTROLLER - RENESAS" section from Maintained to Supported.
This brings it in line with my other "+renesas" entries.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200518081836.23890-1-geert+renesas@glider.be

Merge tag 'samsung-pinctrl-5.8' of https://git./linux/kernel/git/pinctrl/samsung into devel

Samsung pinctrl drivers changes for v5.8

Two fixes for S5Pv210 pinctrl driver: setting proper external interrupt
wakeup mask and restoring external interrupt mask value after system
suspend.

dt-bindings: pinctrl: ocelot: Add Sparx5 SoC support

This adds documentation for the "compatible" value designated for Sparx5

Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Lars Povlsen <lars.povlsen@microchip.com>
Link: https://lore.kernel.org/r/20200513125532.24585-8-lars.povlsen@microchip.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: ocelot: Fix GPIO interrupt decoding on Jaguar2

This fixes a problem with using the GPIO as an interrupt on Jaguar2
(and similar), as the register layout of the platforms with 64 GPIO's
are pairwise, such that the original offset must be multiplied with
the platform stride.

Fixes: da801ab56ad8 pinctrl: ocelot: add MSCC Jaguar2 support.
Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Lars Povlsen <lars.povlsen@microchip.com>
Link: https://lore.kernel.org/r/20200513125532.24585-4-lars.povlsen@microchip.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: ocelot: Remove instance number from pin functions

This patch removes the instance number from the "miim", "reco_clk" and
"sfp" pin function.

The change needed is to prepare the driver for adding new platforms
with more of these instances. The instance number is also redundant,
as this is implicit for each pin.

Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Lars Povlsen <lars.povlsen@microchip.com>
Link: https://lore.kernel.org/r/20200513125532.24585-3-lars.povlsen@microchip.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: ocelot: Always register GPIO driver

This fixes the situation where the GPIO controller is not
used as an interrupt controller as well.

Previously, the driver would silently fail to register even the
GPIO's. With this change, the driver will only register as an
interrupt controller if a parent interrupt is provided.

Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Lars Povlsen <lars.povlsen@microchip.com>
Link: https://lore.kernel.org/r/20200513125532.24585-2-lars.povlsen@microchip.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

dt-bindings: pinctrl: rockchip: update example

The Rockchip dtsi and dts files have been bulk-converted for the
remaining raw gpio numbers into their descriptive counterparts and
also got rid of the unhelpful RK_FUNC_x -> x and RK_GPIOx -> x
mappings, so update the example as well.

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Link: https://lore.kernel.org/r/20200512203524.7317-2-jbx6244@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: amd: Add ACPI dependency

Currently the AMD pin controller driver supports ACPI platform only.
Make the PINCTRL_AMD config symbol depend on ACPI, to avoid asking the
user about it when configuring a kernel without ACPI support.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200507113751.24213-1-geert+renesas@glider.be
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: equilibrium: Add architecture dependency

The Equilibrium pin controller is only present on Intel Lightning
Mountain SoCs.  Add an architecture dependency to the
PINCTRL_EQUILIBRIUM config symbol, to avoid asking the user about it
when configuring a kernel for a non-x86 architecture.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200507113626.24026-2-geert+renesas@glider.be
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Merge tag 'intel-pinctrl-v5.8-1' of git://git./linux/kernel/git/pinctrl/intel into devel

intel-pinctrl for v5.8-1

* Introduce GPIO driver for Jasper Lake
* Fix long standing bug in Sunrisepoint-H PAD locking code
* Enable pin configuration setting for GPIO chip for Baytrail
* Work around race condition in Cherriview hardware when handle IRQ
* Clean up Cherryview code to be closer to other drivers

The following is an automated git shortlog grouped by driver:

baytrail:
 -  Use platform_get_irq_optional() explicitly
 -  Enable pin configuration setting for GPIO chip

cannonlake:
 -  Use generic flag for special GPIO base treatment

cherryview:
 -  Add missing spinlock usage in chv_gpio_irq_handler
 -  Use GENMASK() consistently
 -  Re-use data structures from pinctrl-intel.h (part 2)

icelake:
 -  Use generic flag for special GPIO base treatment

intel:
 -  Move npins closer to pin_base in struct intel_community
 -  Update description in struct intel_community
 -  Add Intel Jasper Lake pin controller support
 -  Introduce new flag to force GPIO base to be 0
 -  Introduce common flags for GPIO mapping scheme

lynxpoint:
 -  Use platform_get_irq_optional() explicitly

sunrisepoint:
 -  Fix PAD lock register offset for SPT-H

tigerlake:
 -  Use generic flag for special GPIO base treatment

pinctrl: rza1: Fix flag name in comment

rza1_swio_pin relates to the swio flag instead of the bidir flag.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Link: https://lore.kernel.org/r/20200507074516.29903-1-geert+renesas@glider.be

pinctrl: sh-pfc: r8a7790: Add r8a7742 PFC support

Renesas RZ/G1H (R8A7742) is pin compatible with R-Car H2 (R8A7790),
however it doesn't have several automotive specific peripherals. Add
automotive-specific pin groups/functions along with common pin
groups/functions for supporting both r8a7790 and r8a7742 SoC.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com>
Link: https://lore.kernel.org/r/1588542414-14826-3-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

dt-bindings: pinctrl: sh-pfc: Document r8a7742 PFC support

Document PFC support for the RZ/G1H (R8A7742) SoC.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1588542414-14826-2-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

pinctrl: rockchip: fix memleak in rockchip_dt_node_to_map

In function rockchip_dt_node_to_map, a new_map variable is
allocated by:

new_map = devm_kcalloc(pctldev->dev, map_num, sizeof(*new_map),
       GFP_KERNEL);

This uses devres and attaches new_map to the pinctrl driver.
This cause a leak since new_map is not released when the probed
driver is removed. Fix it by using kcalloc to allocate new_map
and free it in `rockchip_dt_free_map`

Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20200506100903.15420-1-dafna.hirschfeld@collabora.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: rockchip: return ENOMEM instead of EINVAL if allocation fails

The function rockchip_pinctrl_parse_dt returns -EINVAL if
allocation fails. Change the return error to -ENOMEM

Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20200506101424.15691-1-dafna.hirschfeld@collabora.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: mediatek: add pinctrl-mtk-common-v2 module license

Kbuild warns when this file is built as a loadable module:

WARNING: modpost: missing MODULE_LICENSE() in drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.o
see include/linux/module.h for more information

Add the missing license/author/description tags.

Fixes: 8174a8512e3e ("pinctrl: mediatek: make MediaTek pinctrl v2 driver ready for buidling loadable module")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20200505140848.554957-1-arnd@arndb.de
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: ingenic: Add irq_{request,release}_resources callbacks

These are called when a GPIO is to be used as IRQ.

Without these custom callbacks, when an interrupt is requested directly
and not through gpiod_to_irq(), the request fails because the GPIO is
not necesarily in input mode. These callbacks simply enforce that the
requested GPIO is in input mode.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20200503164549.163884-1-paul@crapouillou.net
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: rk805: Constify rk805_gpio_cfgs

Mark pin_cfg as const, allowing the compiler to put the struct in
.rodata instead of .data.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Link: https://lore.kernel.org/r/20200425203813.6442-1-rikard.falkeborn@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Merge tag 'sh-pfc-for-v5.8-tag1' of git://git./linux/kernel/git/geert/renesas-drivers into devel

pinctrl: sh-pfc: Updates for v5.8

  - Fix SWIO pins on RZ/A1L,
  - Add missing bindings to MAINTAINERS.

pinctrl: db8500: Fix some old bugs

The Hulk robot reports these build warnings:

drivers/pinctrl/nomadik/pinctrl-nomadik-db8500.c:899:20: warning:
‘sbag_groups’ defined but not used [-Wunused-const-variable=]
 DB8500_FUNC_GROUPS(sbag, "sbag_oc2_1", "sbag_oc4_1");
                    ^
drivers/pinctrl/nomadik/pinctrl-nomadik-db8500.c:570:23: warning:
‘ipgpio6_c_2_pins’ defined but not used [-Wunused-const-variable=]
 static const unsigned ipgpio6_c_2_pins[] = { DB8500_PIN_G3 };
                       ^~~~~~~~~~~~~~~~
drivers/pinctrl/nomadik/pinctrl-nomadik-db8500.c:472:23: warning:
‘mc1dir_a_1_pins’ defined but not used [-Wunused-const-variable=]
 static const unsigned mc1dir_a_1_pins[] = { DB8500_PIN_AH13,
DB8500_PIN_AG12,
                       ^~~~~~~~~~~~~~~
drivers/pinctrl/nomadik/pinctrl-nomadik-db8500.c:453:23: warning:
‘modem_a_1_pins’ defined but not used [-Wunused-const-variable=]
 static const unsigned modem_a_1_pins[] = { DB8500_PIN_D22,
DB8500_PIN_C23,
                       ^~~~~~~~~~~~~~
drivers/pinctrl/nomadik/pinctrl-nomadik-db8500.c:430:23: warning:
‘kpskaskb_a_1_pins’ defined but not used [-Wunused-const-variable=]
 static const unsigned kpskaskb_a_1_pins[] = { DB8500_PIN_D17,
DB8500_PIN_D16 };
                       ^~~~~~~~~~~~~~~~~

They are just very old bugs in seldomly used pin groups.
Fix the problem by using the pins and referencing the
function.

Reported-by: Hulk Robot <hulkci@huawei.com>
Reported-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: ab8505: Define group for GPIO pin 50

The Hulk robot reports an usused varible:

drivers/pinctrl/nomadik/pinctrl-ab8505.c:137:23: warning:
‘gpio50_a_1_pins’ defined but not used [-Wunused-const-variable=]
 static const unsigned gpio50_a_1_pins[] = { AB8505_PIN_L4 };
                       ^~~~~~~~~~~~~~~

This variable actually should be used. Probably an oversight
by the driver author.

Cc: Patrice Chotard <patrice.chotard@st.com>
Reported-by: Hulk Robot <hulkci@huawei.com>
Reported-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: bm1880: add pwm37 to bm1880_pctrl_groups

The 'pwm37' is not added to bm1880_pctrl_groups, which triggers a gcc
build warning:

drivers/pinctrl/pinctrl-bm1880.c:263:27: warning: ‘pwm37_pins’ defined
but not used [-Wunused-const-variable=]
 static const unsigned int pwm37_pins[] = { 110 };

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20200428115543.33379-1-yanaijie@huawei.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: stmfx: stmfx_pinconf_set doesn't require to get direction anymore

Pin direction is not used to set pin configuration.

Fixes: a502b343ebd0 ("pinctrl: stmfx: update pinconf settings")
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Link: https://lore.kernel.org/r/20200422072513.8352-1-amelie.delaunay@st.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: fix several typos

use codespell to fix lots of typos over frontends.

Signed-off-by: Dejin Zheng <zhengdejin5@gmail.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
CC: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20200421142402.9524-1-zhengdejin5@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: meson: wire up the gpio_chip's set_config callback

Use gpiochip_generic_config for the gpio_chip's set_config callback so
GPIO flags like GPIO_PULL_UP or GPIO_PULL_DOWN can be used in the board
.dts descriptions.
This is required for some Meson8m2 boards where GPIO_BSD_EN provides the
"MUTE" signal and requires enabling the internal pull-up resistor.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Link: https://lore.kernel.org/r/20200417183349.1283092-3-martin.blumenstingl@googlemail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: meson: implement the gpio_chip get_direction callback

Implement the get_direction callback so we read the direction from the
actual GPIO controller register. This is recommended by the gpio_chip
kernel doc.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Link: https://lore.kernel.org/r/20200417183349.1283092-2-martin.blumenstingl@googlemail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: samsung: Save/restore eint_mask over suspend for EINT_TYPE GPIOs

Currently, for EINT_TYPE GPIOs, the CON and FLTCON registers
are saved and restored over a suspend/resume cycle.  However, the
EINT_MASK registers are not.

On S5PV210 at the very least, these registers are not retained over
suspend, leading to the interrupts remaining masked upon resume and
therefore no interrupts being triggered for the device.  There should
be no effect on any SoCs that do retain these registers as theoretically
we would just be re-writing what was already there.

Fixes: 7ccbc60cd9c2 ("pinctrl: exynos: Handle suspend/resume of GPIO EINT registers")
Cc: <stable@vger.kernel.org>
Signed-off-by: Jonathan Bakker <xc-racer2@live.ca>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

pinctrl: qcom: Add sm8250 pinctrl driver.

Add initial Qualcomm SM8250 pinctrl driver to support pin configuration
with pinctrl framework for SM8250 SoC.

Signed-off-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>
Signed-off-by: Venkata Narendra Kumar Gutta <vnkgutta@codeaurora.org>
Link: https://lore.kernel.org/r/1586477057-7636-2-git-send-email-vnkgutta@codeaurora.org
[bjorn: Regrouped functions, upstream tiles implementation, dropped
        downstream-only features]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200417061907.1226490-3-bjorn.andersson@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

dt-bindings: pinctrl: qcom: Add sm8250 pinctrl bindings

Add device tree binding Documentation details for Qualcomm SM8250
pinctrl driver.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200417061907.1226490-2-bjorn.andersson@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: intel: Move npins closer to pin_base in struct intel_community

It's common across the drivers to use the (pin_base, npins) pair to describe
community characteristics. Thus, move them in the struct intel_community
to be closer to each other.

While at it, add a blank line to cut driver usable fields from what core
reserves for itself.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>

pinctrl: intel: Update description in struct intel_community

It appears that most of the drivers, that are using struct intel_community,
utilize gpps rather than gpp_size. Update comment accordingly.

While here, correct the description of gpp_size, i.e. remove double space
and drop redundant 'etc.' part.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>

MAINTAINERS: Add DT Bindings for Renesas Pin Function Controllers

The "PIN CONTROLLER - RENESAS" section lacks the related DT bindings.
Add them.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/20200417141003.22816-1-geert+renesas@glider.be

pinctrl: rza1: Fix wrong array assignment of rza1l_swio_entries

The rza1l_swio_entries referred to the wrong array rza1h_swio_pins,
which was intended to be rza1l_swio_pins. So let's fix it.

This is detected by the following gcc warning:

drivers/pinctrl/pinctrl-rza1.c:401:35: warning: ‘rza1l_swio_pins’
defined but not used [-Wunused-const-variable=]
 static const struct rza1_swio_pin rza1l_swio_pins[] = {
                                   ^~~~~~~~~~~~~~~

Fixes: 039bc58e73b77723 ("pinctrl: rza1: Add support for RZ/A1L")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Link: https://lore.kernel.org/r/20200417111604.19143-1-yanaijie@huawei.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

pinctrl: cherryview: Add missing spinlock usage in chv_gpio_irq_handler

According to Braswell NDA Specification Update (#557593),
concurrent read accesses may result in returning 0xffffffff and write
instructions may be dropped. We have an established format for the
commit references, i.e.
cdca06e4e859 ("pinctrl: baytrail: Add missing spinlock usage in
byt_gpio_irq_handler")

Fixes: 0bd50d719b00 ("pinctrl: cherryview: prevent concurrent access to GPIO controllers")
Signed-off-by: Grace Kao <grace.kao@intel.com>
Reported-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

pinctrl: mcp23s08: add module license

Fix the following build warning:

WARNING: modpost: missing MODULE_LICENSE() in
drivers/pinctrl/pinctrl-mcp23s08.o
see include/linux/module.h for more information

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Link: https://lore.kernel.org/r/20200417092125.12513-1-yanaijie@huawei.com
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: qcom: Remove duplicated include from pinctrl-msm.c

Remove duplicated include.

Fixes: 13bec8d49bdf ("pinctrl: qcom: use scm_call to route GPIO irq to Apps")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200408070504.134847-1-yuehaibing@huawei.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: lynxpoint: Use platform_get_irq_optional() explicitly

There is no need to repeat functionality of platform_get_irq_optional()
in the driver. Replace it with explicit call to the helper.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: mcp23s08: Split to three parts: core, I²C, SPI

Split the driver to three parts: core, I²C, SPI.
No functional change intended.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200407173849.43628-9-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: mcp23s08: Use for_each_set_bit() and hweight_long()

Here is a simplification of SPI code by using for_each_set_bit() and
hweight_long() library functions.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200407173849.43628-8-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: mcp23s08: Make use of device properties

Device property API allows to gather device resources from different sources,
such as ACPI. Convert the drivers to unleash the power of device property API.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200407173849.43628-7-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: mcp23s08: Propagate error code from device_property_read_u32()

Return error code from device_property_read_u32() as is in mcp23s08_probe().
While here, drop status variable in mcp23s08_irq_set_type() which always 0.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200407173849.43628-6-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: mcp23s08: Refactor mcp23s08_spi_regmap_init()

There is a lot of duplication for one small helper function.
Refactor mcp23s08_spi_regmap_init() to prepare everything first
and then register regmap at the end.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200407173849.43628-5-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: mcp23s08: Drop unused parameter in mcp23s08_probe_one()

The cs parameter in mcp23s08_probe_one() is never used. Drop it for good.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200407173849.43628-4-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: mcp23s08: Consolidate SPI and I²C code

There are three parts of each, SPI and I²C, driver spread over the code under
ifdeffery. Consolidate them so it will be only one for SPI and one for I²C.

The code has been cosmetically changed to avoid intrusive change.
Clean up is considered in the nearest future.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200407173849.43628-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: mcp23s08: Deduplicate IRQ chip filling

In both cases, SPI and I²C, IRQ chip is filled in the same way.
Deduplicate this by moving common part to mcp23s08_probe_one().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200407173849.43628-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: mcp23s08: Get rid of legacy platform data

Platform data is a legacy interface to supply device properties
to the driver. In this case we even don't have in-kernel users
for it. Just remove it for good.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200407173849.43628-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: imx: Add imx8dxl driver

i.MX8DXL contains a system controller that is responsible for controlling
the pad setting of the IPs that are present. Communication between the
host processor running an OS and the system controller happens through
a SCU protocol, add support for the SCU based i.MX8DXL pinctrl driver.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Link: https://lore.kernel.org/r/1585306559-13973-2-git-send-email-Anson.Huang@nxp.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

dt-bindings: arm: fsl-scu: Add imx8dxl pinctrl support

Update binding doc to support i.MX8DXL pinctrl.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1585306559-13973-1-git-send-email-Anson.Huang@nxp.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: sunxi: handle probe defferal

When checking the logs on my sun8i-a33-olinuxino I saw:
sun8i-a23-r-pinctrl 1f02c00.pinctrl: Reset controller missing
but this driver was working after.
This message is just here because the reset controller was still not probed.
So don't say anything if the return code say to wait.

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Link: https://lore.kernel.org/r/1585818532-23051-1-git-send-email-clabbe@baylibre.com
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: mediatek: make MediaTek MT6765 pinctrl ready for buiding loadable module

This patch make pinctrl-mt6765 ready for building as loadable module.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Light Hsieh <light.hsieh@mediatek.com>
Link: https://lore.kernel.org/r/42100afe6f97d28447c153bea6b54ea556cf95ca.1586289920.git.sean.wang@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: mediatek: make MediaTek pinctrl v2 driver ready for buidling loadable module

In the future we want to be able to build the MediaTek pinctrl driver,
based on paris, as kernel module. This patch allows pinctrl-paris.c, the
external interrupt controller mtk-eint.c, and pinctrl-mtk-common-v2.c to
be loadable as module.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Light Hsieh <light.hsieh@mediatek.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Link: https://lore.kernel.org/r/9feeb04805e5a406fe22a92e3f280abda39ddda4.1586289920.git.sean.wang@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: nomadik:remove unneeded variable

ret is unneeded, just return 0.

Signed-off-by: Ding Xiang <dingxiang@cmss.chinamobile.com>
Link: https://lore.kernel.org/r/1585554986-26521-1-git-send-email-dingxiang@cmss.chinamobile.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

pinctrl: baytrail: Use platform_get_irq_optional() explicitly

There is no need to repeat functionality of platform_get_irq_optional()
in the driver. Replace it with explicit call to the helper.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>

pinctrl: intel: Add Intel Jasper Lake pin controller support

This driver adds pinctrl/GPIO support for Intel Jasper Lake SoC. The
GPIO controller is based on the next generation GPIO hardware but still
compatible with the one supported by the Intel core pinctrl/GPIO driver.

Cc: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>

pinctrl: intel: Introduce new flag to force GPIO base to be 0

In some cases not the first group would like to have GPIO base to be 0.
It's not possible right now due to 0 has special meaning already. Thus,
introduce a new flag to allow drivers to force GPIO base to be 0 on
a certain group. It's assumed that it can be only one group per device
with such flag enabled.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>

pinctrl: tigerlake: Use generic flag for special GPIO base treatment

Since we have a generic flag for special GPIO base treatment,
use it in the driver.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>

pinctrl: icelake: Use generic flag for special GPIO base treatment

Since we have a generic flag for special GPIO base treatment,
use it in the driver.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>

pinctrl: cannonlake: Use generic flag for special GPIO base treatment

Since we have a generic flag for special GPIO base treatment,
use it in the driver.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>

pinctrl: intel: Introduce common flags for GPIO mapping scheme

Few drivers are using the same flag to tell Intel pin control core
how to interpret GPIO base.

Provide a generic flags so all drivers can use.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>

pinctrl: cherryview: Use GENMASK() consistently

Use GENMASK() macro for all definitions where it's appropriate.
No functional change intended.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>

pinctrl: cherryview: Re-use data structures from pinctrl-intel.h (part 2)

We have some data structures duplicated across the drivers.
Let's deduplicate them by using ones that being provided by
pinctrl-intel.h.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>

pinctrl: baytrail: Enable pin configuration setting for GPIO chip

It appears that pin configuration for GPIO chip hasn't been enabled yet
due to absence of ->set_config() callback.

Enable it here for Intel Baytrail.

Fixes: c501d0b149de ("pinctrl: baytrail: Add pin control operations")
Depends-on: 2956b5d94a76 ("pinctrl / gpio: Introduce .set_config() callback for GPIO chips")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>

pinctrl: sunrisepoint: Fix PAD lock register offset for SPT-H

It appears that SPT-H variant has different offset for PAD locking registers.
Fix it here.

Fixes: 551fa5801ef1 ("pinctrl: intel: sunrisepoint: Add Intel Sunrisepoint-H support")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>

pinctrl: samsung: Correct setting of eint wakeup mask on s5pv210

Commit a8be2af0218c ("pinctrl: samsung: Write external wakeup interrupt
mask") started writing the eint wakeup mask from the pinctrl driver.
Unfortunately, it made the assumption that the private retention data
was always a regmap while in the case of s5pv210 it is a raw pointer
to the clock base (as the eint wakeup mask not in the PMU as with newer
Exynos platforms).

Fixes: a8be2af0218c ("pinctrl: samsung: Write external wakeup interrupt mask")
Cc: <stable@vger.kernel.org>
Signed-off-by: Jonathan Bakker <xc-racer2@live.ca>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

Linux 5.7-rc1

MAINTAINERS: sort field names for all entries

This sorts the actual field names too, potentially causing even more
chaos and confusion at merge time if you have edited the MAINTAINERS
file.  But the end result is a more consistent layout, and hopefully
it's a one-time pain minimized by doing this just before the -rc1
release.

This was entirely scripted:

  ./scripts/parse-maintainers.pl --input=MAINTAINERS --output=MAINTAINERS --order

Requested-by: Joe Perches <joe@perches.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

MAINTAINERS: sort entries by entry name

They are all supposed to be sorted, but people who add new entries don't
always know the alphabet.  Plus sometimes the entry names get edited,
and people don't then re-order the entry.

Let's see how painful this will be for merging purposes (the MAINTAINERS
file is often edited in various different trees), but Joe claims there's
relatively few patches in -next that touch this, and doing it just
before -rc1 is likely the best time.  Fingers crossed.

This was scripted with

  /scripts/parse-maintainers.pl --input=MAINTAINERS --output=MAINTAINERS

but then I also ended up manually upper-casing a few entry names that
stood out when looking at the end result.

Requested-by: Joe Perches <joe@perches.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'x86-urgent-2020-04-12' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Thomas Gleixner:
 "A set of three patches to fix the fallout of the newly added split
  lock detection feature.

  It addressed the case where a KVM guest triggers a split lock #AC and
  KVM reinjects it into the guest which is not prepared to handle it.

  Add proper sanity checks which prevent the unconditional injection
  into the guest and handles the #AC on the host side in the same way as
  user space detections are handled. Depending on the detection mode it
  either warns and disables detection for the task or kills the task if
  the mode is set to fatal"

* tag 'x86-urgent-2020-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  KVM: VMX: Extend VMXs #AC interceptor to handle split lock #AC in guest
  KVM: x86: Emulate split-lock access as a write in emulator
  x86/split_lock: Provide handle_guest_split_lock()

Merge tag 'timers-urgent-2020-04-12' of git://git./linux/kernel/git/tip/tip

Pull time(keeping) updates from Thomas Gleixner:

 - Fix the time_for_children symlink in /proc/$PID/ so it properly
   reflects that it part of the 'time' namespace

 - Add the missing userns limit for the allowed number of time
   namespaces, which was half defined but the actual array member was
   not added. This went unnoticed as the array has an exessive empty
   member at the end but introduced a user visible regression as the
   output was corrupted.

 - Prevent further silent ucount corruption by adding a BUILD_BUG_ON()
   to catch half updated data.

* tag 'timers-urgent-2020-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  ucount: Make sure ucounts in /proc/sys/user don't regress again
  time/namespace: Add max_time_namespaces ucount
  time/namespace: Fix time_for_children symlink

Merge tag 'sched-urgent-2020-04-12' of git://git./linux/kernel/git/tip/tip

Pull scheduler fixes/updates from Thomas Gleixner:

 - Deduplicate the average computations in the scheduler core and the
   fair class code.

 - Fix a raise between runtime distribution and assignement which can
   cause exceeding the quota by up to 70%.

 - Prevent negative results in the imbalanace calculation

 - Remove a stale warning in the workqueue code which can be triggered
   since the call site was moved out of preempt disabled code. It's a
   false positive.

 - Deduplicate the print macros for procfs

 - Add the ucmap values to the SCHED_DEBUG procfs output for completness

* tag 'sched-urgent-2020-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/debug: Add task uclamp values to SCHED_DEBUG procfs
  sched/debug: Factor out printing formats into common macros
  sched/debug: Remove redundant macro define
  sched/core: Remove unused rq::last_load_update_tick
  workqueue: Remove the warning in wq_worker_sleeping()
  sched/fair: Fix negative imbalance in imbalance calculation
  sched/fair: Fix race between runtime distribution and assignment
  sched/fair: Align rq->avg_idle and rq->avg_scan_cost

Merge tag 'perf-urgent-2020-04-12' of git://git./linux/kernel/git/tip/tip

Pull perf fixes from Thomas Gleixner:
 "Three fixes/updates for perf:

   - Fix the perf event cgroup tracking which tries to track the cgroup
     even for disabled events.

   - Add Ice Lake server support for uncore events

   - Disable pagefaults when retrieving the physical address in the
     sampling code"

* tag 'perf-urgent-2020-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/core: Disable page faults when getting phys address
  perf/x86/intel/uncore: Add Ice Lake server uncore support
  perf/cgroup: Correct indirection in perf_less_group_idx()
  perf/core: Fix event cgroup tracking

Merge tag 'locking-urgent-2020-04-12' of git://git./linux/kernel/git/tip/tip

Pull locking fixes from Thomas Gleixner:
 "Three small fixes/updates for the locking core code:

   - Plug a task struct reference leak in the percpu rswem
     implementation.

   - Document the refcount interaction with PID_MAX_LIMIT

   - Improve the 'invalid wait context' data dump in lockdep so it
     contains all information which is required to decode the problem"

* tag 'locking-urgent-2020-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  locking/lockdep: Improve 'invalid wait context' splat
  locking/refcount: Document interaction with PID_MAX_LIMIT
  locking/percpu-rwsem: Fix a task_struct refcount

Merge tag '5.7-rc-smb3-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs fixes from Steve French:
 "Ten cifs/smb fixes:

   - five RDMA (smbdirect) related fixes

   - add experimental support for swap over SMB3 mounts

   - also a fix which improves performance of signed connections"

* tag '5.7-rc-smb3-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6:
  smb3: enable swap on SMB3 mounts
  smb3: change noisy error message to FYI
  smb3: smbdirect support can be configured by default
  cifs: smbd: Do not schedule work to send immediate packet on every receive
  cifs: smbd: Properly process errors on ib_post_send
  cifs: Allocate crypto structures on the fly for calculating signatures of incoming packets
  cifs: smbd: Update receive credits before sending and deal with credits roll back on failure before sending
  cifs: smbd: Check send queue size before posting a send
  cifs: smbd: Merge code to track pending packets
  cifs: ignore cached share root handle closing errors

Merge tag 'nfs-for-5.7-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client bugfix from Trond Myklebust:
 "Fix an RCU read lock leakage in pnfs_alloc_ds_commits_list()"

* tag 'nfs-for-5.7-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  pNFS: Fix RCU lock leakage

Merge tag 'nios2-v5.7-rc1' of git://git./linux/kernel/git/lftan/nios2

Pull nios2 updates from Ley Foon Tan:

 - Remove nios2-dev@lists.rocketboards.org from MAINTAINERS

 - remove 'resetvalue' property

 - rename 'altr,gpio-bank-width' -> 'altr,ngpio'

 - enable the common clk subsystem on Nios2

* tag 'nios2-v5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2:
  MAINTAINERS: Remove nios2-dev@lists.rocketboards.org
  arch: nios2: remove 'resetvalue' property
  arch: nios2: rename 'altr,gpio-bank-width' -> 'altr,ngpio'
  arch: nios2: Enable the common clk subsystem on Nios2

Merge tag 'dma-mapping-5.7-1' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping fixes from Christoph Hellwig:

 - fix an integer truncation in dma_direct_get_required_mask
   (Kishon Vijay Abraham)

 - fix the display of dma mapping types (Grygorii Strashko)

* tag 'dma-mapping-5.7-1' of git://git.infradead.org/users/hch/dma-mapping:
  dma-debug: fix displaying of dma allocation type
  dma-direct: fix data truncation in dma_direct_get_required_mask()

Merge tag 'kbuild-v5.7-2' of git://git./linux/kernel/git/masahiroy/linux-kbuild

Pull more Kbuild updates from Masahiro Yamada:

 - raise minimum supported binutils version to 2.23

 - remove old CONFIG_AS_* macros that we know binutils >= 2.23 supports

 - move remaining CONFIG_AS_* tests to Kconfig from Makefile

 - enable -Wtautological-compare warnings to catch more issues

 - do not support GCC plugins for GCC <= 4.7

 - fix various breakages of 'make xconfig'

 - include the linker version used for linking the kernel into
   LINUX_COMPILER, which is used for the banner, and also exposed to
   /proc/version

 - link lib-y objects to vmlinux forcibly when CONFIG_MODULES=y, which
   allows us to remove the lib-ksyms.o workaround, and to solve the last
   known issue of the LLVM linker

 - add dummy tools in scripts/dummy-tools/ to enable all compiler tests
   in Kconfig, which will be useful for distro maintainers

 - support the single switch, LLVM=1 to use Clang and all LLVM utilities
   instead of GCC and Binutils.

 - support LLVM_IAS=1 to enable the integrated assembler, which is still
   experimental

* tag 'kbuild-v5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (36 commits)
  kbuild: fix comment about missing include guard detection
  kbuild: support LLVM=1 to switch the default tools to Clang/LLVM
  kbuild: replace AS=clang with LLVM_IAS=1
  kbuild: add dummy toolchains to enable all cc-option etc. in Kconfig
  kbuild: link lib-y objects to vmlinux forcibly when CONFIG_MODULES=y
  MIPS: fw: arc: add __weak to prom_meminit and prom_free_prom_memory
  kbuild: remove -I$(srctree)/tools/include from scripts/Makefile
  kbuild: do not pass $(KBUILD_CFLAGS) to scripts/mkcompile_h
  Documentation/llvm: fix the name of llvm-size
  kbuild: mkcompile_h: Include $LD version in /proc/version
  kconfig: qconf: Fix a few alignment issues
  kconfig: qconf: remove some old bogus TODOs
  kconfig: qconf: fix support for the split view mode
  kconfig: qconf: fix the content of the main widget
  kconfig: qconf: Change title for the item window
  kconfig: qconf: clean deprecated warnings
  gcc-plugins: drop support for GCC <= 4.7
  kbuild: Enable -Wtautological-compare
  x86: update AS_* macros to binutils >=2.23, supporting ADX and AVX2
  crypto: x86 - clean up poly1305-x86_64-cryptogams.S by 'make clean'
  ...

mailmap: Add Sedat Dilek (replacement for expired email address)

I do not longer work for credativ Germany.

Please, use my private email address instead.

This is for the case when people want to CC me on
patches sent from my old business email address.

Signed-off-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

pNFS: Fix RCU lock leakage

Another brown paper bag moment. pnfs_alloc_ds_commits_list() is leaking
the RCU lock.

Fixes: a9901899b649 ("pNFS: Add infrastructure for cleaning up per-layout commit structures")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>

KVM: VMX: Extend VMXs #AC interceptor to handle split lock #AC in guest

Two types of #AC can be generated in Intel CPUs:
 1. legacy alignment check #AC
 2. split lock #AC

Reflect #AC back into the guest if the guest has legacy alignment checks
enabled or if split lock detection is disabled.

If the #AC is not a legacy one and split lock detection is enabled, then
invoke handle_guest_split_lock() which will either warn and disable split
lock detection for this task or force SIGBUS on it.

[ tglx: Switch it to handle_guest_split_lock() and rename the misnamed
  helper function. ]

Suggested-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Link: https://lkml.kernel.org/r/20200410115517.176308876@linutronix.de

KVM: x86: Emulate split-lock access as a write in emulator

Emulate split-lock accesses as writes if split lock detection is on
to avoid #AC during emulation, which will result in a panic(). This
should never occur for a well-behaved guest, but a malicious guest can
manipulate the TLB to trigger emulation of a locked instruction[1].

More discussion can be found at [2][3].

[1] https://lkml.kernel.org/r/8c5b11c9-58df-38e7-a514-dc12d687b198@redhat.com
[2] https://lkml.kernel.org/r/20200131200134.GD18946@linux.intel.com
[3] https://lkml.kernel.org/r/20200227001117.GX9940@linux.intel.com

Suggested-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Link: https://lkml.kernel.org/r/20200410115517.084300242@linutronix.de

x86/split_lock: Provide handle_guest_split_lock()

Without at least minimal handling for split lock detection induced #AC,
VMX will just run into the same problem as the VMWare hypervisor, which
was reported by Kenneth.

It will inject the #AC blindly into the guest whether the guest is
prepared or not.

Provide a function for guest mode which acts depending on the host
SLD mode. If mode == sld_warn, treat it like user space, i.e. emit a
warning, disable SLD and mark the task accordingly. Otherwise force
SIGBUS.

 [ bp: Add a !CPU_SUP_INTEL stub for handle_guest_split_lock(). ]

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Link: https://lkml.kernel.org/r/20200410115516.978037132@linutronix.de
Link: https://lkml.kernel.org/r/20200402123258.895628824@linutronix.de

kbuild: fix comment about missing include guard detection

The keyword here is 'twice' to explain the trick.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

Merge branch 'akpm' (patches from Andrew)

Merge yet more updates from Andrew Morton:

 - Almost all of the rest of MM (memcg, slab-generic, slab, pagealloc,
   gup, hugetlb, pagemap, memremap)

 - Various other things (hfs, ocfs2, kmod, misc, seqfile)

* akpm: (34 commits)
  ipc/util.c: sysvipc_find_ipc() should increase position index
  kernel/gcov/fs.c: gcov_seq_next() should increase position index
  fs/seq_file.c: seq_read(): add info message about buggy .next functions
  drivers/dma/tegra20-apb-dma.c: fix platform_get_irq.cocci warnings
  change email address for Pali Rohár
  selftests: kmod: test disabling module autoloading
  selftests: kmod: fix handling test numbers above 9
  docs: admin-guide: document the kernel.modprobe sysctl
  fs/filesystems.c: downgrade user-reachable WARN_ONCE() to pr_warn_once()
  kmod: make request_module() return an error when autoloading is disabled
  mm/memremap: set caching mode for PCI P2PDMA memory to WC
  mm/memory_hotplug: add pgprot_t to mhp_params
  powerpc/mm: thread pgprot_t through create_section_mapping()
  x86/mm: introduce __set_memory_prot()
  x86/mm: thread pgprot_t through init_memory_mapping()
  mm/memory_hotplug: rename mhp_restrictions to mhp_params
  mm/memory_hotplug: drop the flags field from struct mhp_restrictions
  mm/special: create generic fallbacks for pte_special() and pte_mkspecial()
  mm/vma: introduce VM_ACCESS_FLAGS
  mm/vma: define a default value for VM_DATA_DEFAULT_FLAGS
  ...

Merge tag 'docs-5.7-2' of git://git.lwn.net/linux

Pull Documentation fixes from Jonathan Corbet:
 "A handful of late-arriving fixes for the documentation tree"

* tag 'docs-5.7-2' of git://git.lwn.net/linux:
  Documentation: android: binderfs: add 'stats' mount option
  Documentation: driver-api/usb/writing_usb_driver.rst Updates documentation links
  docs: driver-api: address duplicate label warning
  Documentation: sysrq: fix RST formatting
  docs: kernel-parameters.txt: Fix broken references
  docs: kernel-parameters.txt: Remove nompx
  docs: filesystems: fix typo in qnx6.rst

Merge tag 'for-linus-5.7-ofs1' of git://git./linux/kernel/git/hubcap/linux

Pull orangefs updates from Mike Marshall:
 "A fix and two cleanups.

  Fix:

   - Christoph Hellwig noticed that some logic I added to
     orangefs_file_read_iter introduced a race condition, so he sent a
     reversion patch. I had to modify his patch since reverting at this
     point broke Orangefs.

  Cleanups:

   - Christoph Hellwig noticed that we were doing some unnecessary work
     in orangefs_flush, so he sent in a patch that removed the un-needed
     code.

   - Al Viro told me he had trouble building Orangefs. Orangefs should
     be easy to build, even for Al :-).

     I looked back at the test server build notes in orangefs.txt, just
     in case that's where the trouble really is, and found a couple of
     typos and made a couple of clarifications"

* tag 'for-linus-5.7-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux:
  orangefs: clarify build steps for test server in orangefs.txt
  orangefs: don't mess with I_DIRTY_TIMES in orangefs_flush
  orangefs: get rid of knob code...

Merge tag 'xtensa-20200410' of git://github.com/jcmvbkbc/linux-xtensa

Pull xtensa updates from Max Filippov:

 - replace setup_irq() by request_irq()

 - cosmetic fixes in xtensa Kconfig and boot/Makefile

* tag 'xtensa-20200410' of git://github.com/jcmvbkbc/linux-xtensa:
  arch/xtensa: fix grammar in Kconfig help text
  xtensa: remove meaningless export ccflags-y
  xtensa: replace setup_irq() by request_irq()

Merge tag 'for-linus-5.7-rc1b-tag' of git://git./linux/kernel/git/xen/tip

Pull more xen updates from Juergen Gross:

 - two cleanups

 - fix a boot regression introduced in this merge window

 - fix wrong use of memory allocation flags

* tag 'for-linus-5.7-rc1b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  x86/xen: fix booting 32-bit pv guest
  x86/xen: make xen_pvmmu_arch_setup() static
  xen/blkfront: fix memory allocation flags in blkfront_setup_indirect()
  xen: Use evtchn_type_t as a type for event channels

ipc/util.c: sysvipc_find_ipc() should increase position index

If seq_file .next function does not change position index, read after
some lseek can generate unexpected output.

https://bugzilla.kernel.org/show_bug.cgi?id=206283
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Waiman Long <longman@redhat.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Manfred Spraul <manfred@colorfullife.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: NeilBrown <neilb@suse.com>
Cc: Peter Oberparleiter <oberpar@linux.ibm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/b7a20945-e315-8bb0-21e6-3875c14a8494@virtuozzo.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

kernel/gcov/fs.c: gcov_seq_next() should increase position index

If seq_file .next function does not change position index, read after
some lseek can generate unexpected output.

https://bugzilla.kernel.org/show_bug.cgi?id=206283
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Manfred Spraul <manfred@colorfullife.com>
Cc: NeilBrown <neilb@suse.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Waiman Long <longman@redhat.com>
Link: http://lkml.kernel.org/r/f65c6ee7-bd00-f910-2f8a-37cc67e4ff88@virtuozzo.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>