The reMarkable2 (https://remarkable.com) is an e-ink tablet based on
the imx7d SoC.

This commit is based on the DTS provide by reMarkable but ported to the
latest kernel (instead of 4.14). I have removed references to
non-upstream devices and have changed the UART so that the console can
be accessed without having to open up the device via the OTG pogo pins.

Currently the kernel boots, but there is no support for the display.

WiFi is untested (no display or UART RX makes it hard to test), but
should work with the current upstream driver. As it's untested it's not
included in this commit.
Signed-off-by: NAlistair Francis <alistair@alistair23.me>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

disable-gpio' and 'power-on-gpio' are not valid properties
according to Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt.

Remove the unsupported properties.
Signed-off-by: NFabio Estevam <festevam@gmail.com>
Reviewed-by: NBruno Thomsen <bruno.thomsen@gmail.com>
Reviewed-by: NMatthias Schiffer <matthias.schiffer@ew.tq-group.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

Remove the unnecessary #address-cells/#size-cells to avoid warnings
from W=1 build like this:

arch/arm/boot/dts/imx6qdl-gw52xx.dtsi:33.12-78.4: Warning (avoid_unnecessary_addr_size): /gpio-keys: unnecessary #address-cells/#size-cells without "ranges" or child "reg" property
Signed-off-by: NTim Harvey <tharvey@gateworks.com>
[fabio: Make the warning messages more succint]
Signed-off-by: NFabio Estevam <festevam@gmail.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

Remove the unnecessary #address-cells/#size-cells and rename the node
names to fix the following W=1 dtc warnings:

arch/arm/boot/dts/imx6dl-plybas.dts:26.13-30.5: Warning (unit_address_vs_reg): /gpio_keys/button@20: node has a unit name, but no reg or ranges property
arch/arm/boot/dts/imx6dl-plybas.dts:32.13-36.5: Warning (unit_address_vs_reg): /gpio_keys/button@21: node has a unit name, but no reg or ranges property
arch/arm/boot/dts/imx6dl-plybas.dts:20.12-37.4: Warning (avoid_unnecessary_addr_size): /gpio_keys: unnecessary #address-cells/#size-cells without "ranges" or child "reg" property
Signed-off-by: NFabio Estevam <festevam@gmail.com>
Reviewed-by: NOleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

Define GPIO line names for b450v3, b650v3, and b850v3.
Signed-off-by: NIan Ray <ian.ray@ge.com>
Signed-off-by: NSebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

Explicitly mark I2C GPIOs as open drain to fix the following
kernel message being printed:

enforced open drain please flag it properly in DT/ACPI DSDT/board file
Signed-off-by: NSebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

Add PHY voltage supply information fixing the following kernel message:

2188000.ethernet supply phy not found, using dummy regulator

Also add PHY clock information to avoid depending on the bootloader
programming correct values.

The bootloader also sets some reserved registers in the PHY as
advised by Qualcomm, which is not supported by the bindings/kernel
driver, so the reset GPIO has not been added intentionally.
Signed-off-by: NSebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

Add VBUS regulator GPIO information, so that USB OTG port can
also be used in host mode.
Signed-off-by: NSebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

Crypto engine (CAAM) on LS1021A platform is configured HW-coherent,
mark accordingly the DT node.
Signed-off-by: NHoria Geantă <horia.geanta@nxp.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

The current setting reflects about 86 Ohms of source-impedance
on the SDIO signals where the WiFi board is hooked up. PCB traces are
routed with 50 Ohms impedance and there are no serial resistors on
those traces.

This commit changes the source-impedance to 52 Ohms to better match our
hardware design.

The impedances given in this commit message refer to 3.3V operation.
Signed-off-by: NPhilippe Schenker <philippe.schenker@toradex.com>
Reviewed-by: NFabio Estevam <festevam@gmail.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

Move the "hog" pins to the corresponding pin groups for SPI, ENET, PMIC,
LEDs, so that these pins can be used for different purposes when the
respective drivers are disabled.
Signed-off-by: NAlexander Shiyan <shc_work@mail.ru>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

Board uses 4-wire synchronous mode for audio,
so add SYN bit for PTCR AUDMUX registers.
Signed-off-by: NAlexander Shiyan <shc_work@mail.ru>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

The operating mode is used for the AC97 interface only,
so lets drop the excess fsl,mode item from SSI node.
Signed-off-by: NAlexander Shiyan <shc_work@mail.ru>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

The micro SD card slot uses GPIO3_13 as card detect pin, so describe
it in the devicetree.

This was noticed when converting imx53-qsb board to driver model
in U-Boot as the micro SD card was not getting detected.
Signed-off-by: NFabio Estevam <festevam@gmail.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

In accordance with the DWC USB3 bindings the corresponding node
name is suppose to comply with the Generic USB HCD DT schema, which
requires the USB nodes to have the name acceptable by the regexp:
"^usb(@.*)?" . Make sure the "snps,dwc3"-compatible nodes are correctly
named.
Signed-off-by: NSerge Semin <Sergey.Semin@baikalelectronics.ru>
Acked-by: NKrzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

The i2c bus on imx6qdl-wandboard has intermittent issues where SDA can freeze
on low level at the end of transaction so the bus can no longer work. This
impacts reading of EDID data leading to incorrect TV resolution and no audio.

This scenario is improved by adding scl/sda gpios definitions to implement the
i2c bus recovery mechanism.
Signed-off-by: NDima Azarkin <azdmg@outlook.com>
Reviewed-by: NFabio Estevam <festevam@gmail.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

IIM contains system fuses with information like SoC unique ID
(serial) on i.MX51 and i.MX53. Add "syscon" compatible allowing
simple access.
Signed-off-by: NSebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

For now, the driver detects an incompatible version, but since
that can be handled by auto-detection, add the controller to the
devicetree now. Only PWM seems to be available, there is no RTC
in that controller.
Signed-off-by: NAndreas Kemnade <andreas@kemnade.info>
Reviewed-by: NJonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

Enable the Netronix EC on the Kobo Aura ebook reader.

Several features are still missing:
 - Frontlight/backlight. The vendor kernel drives the frontlight LED
   using the PWM output of the EC and an additional boost pin that
   increases the brightness.
 - Battery monitoring
 - Interrupts for RTC alarm and low-battery events
Signed-off-by: NJonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

The common cros-ec keymap has been defined as macros. This patch uses
the macros to simply linux,keymap in cros-ec-keyboard.dtsi file.

This patch also creates an alias for keyboard-controller to make it
easier to override the keymap in board-specific dts later.
Signed-off-by: NPhilip Chen <philipchen@chromium.org>
Reviewed-by: NStephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20210115143555.v6.2.I9ec9c3c61eded22a5f7fbff838d23fc95ec7cfe0@changeidSigned-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

dtschema for pca95xx expects GPIO hogs to end with 'hog' suffix.
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20210212162640.66677-2-krzk@kernel.org'
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

The PCA95xx GPIO expander requires GPIO controller properties to operate
properly.
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>
Acked-by: NJoel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20210212162640.66677-1-krzk@kernel.org'
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

Signed-off-by: NRyan Chen <ryan_chen@aspeedtech.com>
Link: https://lore.kernel.org/r/20201009024937.11246-4-ryan_chen@aspeedtech.comSigned-off-by: NJoel Stanley <joel@jms.id.au>

This system uses a rx8900 compatible rtc device.
Signed-off-by: NBen Pai <Ben_Pai@wistron.com>
Link: https://lore.kernel.org/r/20210121073146.28217-1-Ben_Pai@wistron.comSigned-off-by: NJoel Stanley <joel@jms.id.au>

AMD EthanolX CRB uses 2-byte POST codes which are sent to ports 0x80/0x81.
Currently ASPEED controller snoops only 0x80 port and therefore captures
only the lower byte of each POST code.
Enable secondary LPC snooping address to capture the higher byte of POST
codes.
Signed-off-by: NKonstantin Aladyshev <aladyshev22@gmail.com>
Reviewed-by: NAndrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20210127182326.424-1-aladyshev22@gmail.comSigned-off-by: NJoel Stanley <joel@jms.id.au>

Add the pinctrl entries for the GPIOs which are connected to the
push buttons on this board.
Signed-off-by: NMichael Walle <michael@walle.cc>
Link: https://lore.kernel.org/r/20210201133000.23402-1-michael@walle.ccSigned-off-by: NMichal Simek <michal.simek@xilinx.com>

The Ebang EBAZ4205 is a simple board based on the Xilinx Zynq-7000 SoC.
Its features are:
 - one serial port
 - 256 MB RAM
 - 128 MB NAND flash
 - SDcard slot
 - IP101GA 10/100 Mbit Ethernet PHY (connected to PL IOs)
 - two LEDs (connected to PL IOs)
 - one Push Button (connect to PL IOs)
 - (optional) RTC
 - (optional) Input voltage supervisor

The NAND flash is not supported in mainline linux yet. Unfortunately,
the PHY is connected via the PL, thus for working ethernet the FPGA has
to be configured. Also, depending on the board variant, the PHY has no
external crystal and its clock needs to be driven by the PL. FCLK3 is
used for this and is kept enabled.
Signed-off-by: NMichael Walle <michael@walle.cc>
Link: https://lore.kernel.org/r/20210120194033.26970-4-michael@walle.ccSigned-off-by: NMichal Simek <michal.simek@xilinx.com>

Add the Everest machine powered by an AST2600 chip. Copy the basic
configuration from Rainier.
Signed-off-by: NEddie James <eajames@linux.ibm.com>
Tested-by: NAndrew Geissler <geissonator@gmail.com>
Link: https://lore.kernel.org/r/20201211170704.27640-1-eajames@linux.ibm.comSigned-off-by: NJoel Stanley <joel@jms.id.au>

power-supply is compatible with Inspur's ipsps1 driver
Signed-off-by: NGeorge Liu <liuxiwei@inspur.com>
Link: https://lore.kernel.org/r/20201225015149.1416773-1-liuxiwei@inspur.comSigned-off-by: NJoel Stanley <joel@jms.id.au>

Signed-off-by: NGeorge Liu <liuxiwei@inspur.com>
Link: https://lore.kernel.org/r/20201225015126.1416690-1-liuxiwei@inspur.comSigned-off-by: NJoel Stanley <joel@jms.id.au>

The x11spi is a server platform with an ASPEED AST2500 BMC.
Signed-off-by: NRyan Sie <ryans@supermicro.com.tw>
Link: https://lore.kernel.org/r/20201221134315.5544-1-RyanS@supermicro.com.twSigned-off-by: NJoel Stanley <joel@jms.id.au>

The NCSI_BMC_R_SEL and EN_NCSI_SWITCH_N should be active-high
Signed-off-by: NJohn Wang <wangzhiqiang.bj@bytedance.com>
Reviewed-by: NJoel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20201211040002.1030-2-wangzhiqiang.bj@bytedance.comSigned-off-by: NJoel Stanley <joel@jms.id.au>

Enable ipmb on i2c4.
Signed-off-by: NLotus Xu <xuxiaohan@bytedance.com>
Signed-off-by: NJohn Wang <wangzhiqiang.bj@bytedance.com>
Reviewed-by: NJoel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20201211040002.1030-1-wangzhiqiang.bj@bytedance.comSigned-off-by: NJoel Stanley <joel@jms.id.au>

Determined by scope measurements at speed.
Signed-off-by: NAndrew Jeffery <andrew@aj.id.au>
Reviewed-by: NJoel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20201208012615.2717412-7-andrew@aj.id.auSigned-off-by: NJoel Stanley <joel@jms.id.au>

Signed-off-by: NJohn Wang <wangzhiqiang.bj@bytedance.com>
Reviewed-by: NJoel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20201202051634.490-2-wangzhiqiang.bj@bytedance.comSigned-off-by: NJoel Stanley <joel@jms.id.au>

The Mt. Jade BMC is an ASPEED AST2500-based BMC for the Mt. Jade
hardware reference platform with Ampere's Altra Processor Family.
Signed-off-by: NQuan Nguyen <quan@os.amperecomputing.com>
Signed-off-by: NPhong Vo <phong@os.amperecomputing.com>
Signed-off-by: NThang Q. Nguyen <thang@os.amperecomputing.com>
Reviewed-by: NAndrew Jeffery <andrew@aj.id.au>
Reviewed-by: NJoel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20201208043700.23098-3-quan@os.amperecomputing.comSigned-off-by: NJoel Stanley <joel@jms.id.au>

The 32-bit Amlogic Meson SoCs embed an ARC processor in the Always-On
power domain which is typically used for managing system suspend. The
memory for this ARC core is taken from the AHB SRAM area. Depending on
the actual SoC a different ARC core is used:
- Meson6 and earlier: some ARCv1 ISA based core (probably an ARC625)
- Meson8 and later: an ARC EM4 (ARCv2 ISA) based core

Add the device-tree node for this remote-processor along with the
required SRAM sections, clocks and reset-lines. Also use the
SoC-specific compatible string to manage any differences (should
they exist).

On Meson8, Meson8b and Meson8m2 the "secbus2" IO region is needed as
some bits need to be programmed there. Add this IO region for those
SoCs as well.
Signed-off-by: NMartin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: NNeil Armstrong <narmstrong@baylibre.com>
Signed-off-by: NKevin Hilman <khilman@baylibre.com>
Link: https://lore.kernel.org/r/20210102205904.2691120-6-martin.blumenstingl@googlemail.com

This reverts commit c17e9377.

The lpc32xx clock driver is not able to actually change the PLL rate as
this would require reparenting ARM_CLK, DDRAM_CLK, PERIPH_CLK to SYSCLK,
then stop the PLL, update the register, restart the PLL and wait for the
PLL to lock and finally reparent ARM_CLK, DDRAM_CLK, PERIPH_CLK to HCLK
PLL.

Currently, the HCLK driver simply updates the registers but this has no
real effect and all the clock rate calculation end up being wrong. This is
especially annoying for the peripheral (e.g. UARTs, I2C, SPI).
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>
Tested-by: NGregory CLEMENT <gregory.clement@bootlin.com>
Link: https://lore.kernel.org/r/20210203090320.GA3760268@piout.net'
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

BPi Pro needs TX and RX delay for Gbit to work reliable and avoid high
packet loss rates. The realtek phy driver overrides the settings of the
pull ups for the delays, so fix this for BananaPro.

Fix the phy-mode description to correctly reflect this so that the
implementation doesn't reconfigure the delays incorrectly. This
happened with commit bbc4d71d ("net: phy: realtek: fix rtl8211e
rx/tx delay config").

Fixes: 10662a33 ("ARM: dts: sun7i: Add dts file for Bananapro board")
Signed-off-by: NHermann Lauer <Hermann.Lauer@uni-heidelberg.de>
Signed-off-by: NMaxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20210128111842.GA11919@lemon.iwr.uni-heidelberg.de

s1 and l12 regulators are used for the memory and cache on the Samsung
S5 (klte). If they are turned off the phone shuts down. So mark them as
always-on to prevent that from happening.
Signed-off-by: NIskren Chernev <iskren.chernev@gmail.com>
Tested-by: NAlexey Minnekhanov <alexeymin@postmarketos.org>
Link: https://lore.kernel.org/r/20210201105657.1642825-4-iskren.chernev@gmail.comSigned-off-by: NBjorn Andersson <bjorn.andersson@linaro.org>