Merge branch 'for-next/stm32'

Merge branch 'for-next/misc'

Merge branch 'for-next/mips'

Merge branch 'for-next/imx'

Merge branch 'for-next/clk'

watchdog: stm32_iwdg: remove left-over comment ...

The reset reason part of the code is based on the i.MX6's and duplicated
a comment from there, which isn't applicable to the STM32. Delete it.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usb: imx-usb-phy: select syscon driver ...

Since b904eca92f we depend on syscon once the "fsl,anatop" property is
found. select MFD_SYSCON to make sure it is available.

Fixes: b904eca92f ("usb: imx-usb-phy: Disable charger detect during initialization")
Cc: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: cpsw: adopt to upstream device tree changes ...

Upstream device trees no longer have a "cpsw-phy-sel" property to find
the phy_sel register, instead they have a child device of the pinctrl
node compatible to "ti,am3352-phy-gmii-sel". Also the "rmii-clock-ext"
property is no longer global to the cpsw but instead can be selected
per slave. To adopt to these changes take the short way out for now
and find the new node by its compatible and hardcode the "rmii-clock-ext"
setting (which is set to true in am33xx-l4.dtsi and not overwritten
by any board).

This makes the cpsw driver work again. Tested on Beaglebone black
board.

Fixes: 1dc748b3b2 ("dts: update to v5.1-rc1")
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

pinctrl: stm32: fix error path when gpio chip is not found ...

Current error path has two issues:

- PTR_ERR is applied to a NULL pointer, so even error conditions return
  zero, which is a valid successful return.
- The return value is stored into an unsigned integer which is checked
  to be less than zero, so the error is never handled.

Fix both issues.

Fixes: f4f933a64 ("pinctrl: add driver for STM32 GPIO and pin multiplexer")
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

pinctrl: stm32: add debug output in set_state callback ...

There's already a debug output whenever a pin is configured, extend this
by printing a "header" with the node name and how many pins configurations
will follow.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

clk: divider: export clk_div_mask() helper ...

commit e6d3cc7 Linux upstream.

  clk: divider: export clk_div_mask() helper

  Export clk_div_mask() in clk-provider header so every clock providers
  derived from the generic clock divider may share the definition instead
  of redefining it.

  Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
  Signed-off-by: Michael Turquette <mturquette@baylibre.com>
  Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

f_fastboot: remove only image from bootm variables ...

Remove only the bootm.image variable which will be set by fastboot.

Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

clk: divider: Make generic for usage elsewhere ...

commit bca9690 Linux upstream adjusted
to current Barebox codebase.

  clk: divider: Make generic for usage elsewhere

  Some devices don't use mmio to interact with dividers. Split out the
  logic from the register read/write parts so that we can reuse the
  division logic elsewhere.

  Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
  Tested-by: Kenneth Westfield <kwestfie@codeaurora.org>
  Signed-off-by: Michael Turquette <mturquette@linaro.org>

Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

clk: divider: Fix best div calculation for power-of-two and table dividers ...

commit dd23c2c Linux upstream.

  clk: divider: Fix best div calculation for power-of-two and table dividers

  The divider returned by clk_divider_bestdiv() is likely to be invalid in case
  of power-of-two and table dividers when CLK_SET_RATE_PARENT flag isn't set.

  Fixes boot on STiH416 platform.

  Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
  Signed-off-by: Mike Turquette <mturquette@linaro.org>
  [mturquette@linaro.org: trivial merge conflict & updated changelog]

Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

serial: ns16550: support reg-offset device-tree property ...

Some SoC have serial registers with a fixed offset to the map base.
Support them by respecting 'reg-offset' device-tree property.

Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mfd: syscon: add syscon_regmap_lookup_by_phandle() ...

This function is handy when syscon is passed as phandle to device_node
property.

Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

clk: divider: Remove unused variable in clk_divider_recalc_rate ...

commit "clk: add divider_recalc_rate helper" reworked
clk_divider_recalc_rate() function and as part of that left one variable
assignment, which is not used later.

Fixes: e27c0b64db01 ("clk: add divider_recalc_rate helper")
Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

i.MX: HABv4: Reset index variable after error type ...

The index variable is used for each error type, it should be reset to 0
before retrieving the next error status, otherwise error messages are
skipped if the preceding error type incremented index.

Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

i.MX: HABv4: use min_t instead of min ...

This fixes a compiler warning because len is size_t and
RNG_FAIL_EVENT_SIZE was cast to uint32_t.

Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

serial: ar933x: set linux_console_name ...

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

i2c: gpio: add sda/scl-gpios property support ...

The gpios property is marked as deprecated since kernel 4.15 so we
should support the "new" mechanism too. The new mechanism has a higher
priority than the deprecated one.

Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

pinctrl: add driver for STM32 GPIO and pin multiplexer ...

This adds driver support for the 12 GPIO banks on the STM32MP157.
As they are accessible to both the Cortex-A cores as well as the Cortex-M
core, modifications to these are protected by a hardware spinlock
and clocks are enabled/disabled as required.

All register fiddling done by the driver is collected in <soc/stm32/gpio.h>,
so future PBL code may make use of it as well to chainload barebox proper.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

gpiolib: add gpio_get_chip helper ...

Pinctrl nodes adhering to the generic pinctrl bindings may contain
properties like input-low/input-high, which require pinctrl_ops.set_state
to have a handle on the relevant gpio chip.

Currently this would lead to code duplication: Both the pinctrl driver
and gpiolib will need to store a list of registered gpiochips.

Avoid this by providing a helper to query the registered gpio_chip
given a gpio's number.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

watchdog: add stm32 watchdog and reset driver ...

The driver supports setting watchdog timeout, system reset
and querying reset reason. Disabling watchdog isn't possible
in hardware, thus users should either only enable it before
boot or have the poller take care of feeding it.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usb: usb251xb: fix optional reset gpio request ...

Linux requests the reset gpio optional by using devm_gpiod_get_optional().
We need to do this here too because the reset can be a global shared
reset line e.g. board por. We haven't such a helper so just drop the
final else path.

Fixes: 937fa50d9c ("usb: Port Microchip USB251x USB hub driver from Linux")
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

pcf857x: fix CONFIG_OF to OFDEVICE ...

There is not CONFIG_OF symbol. We fix this
by using OFDEVICE instead.

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mtd: spi-nor: Add support for ISSI flashes from Linux ...

The definitions are taken from Linux's spi-nor driver as of v5.2-rc4.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

treewide: remove stale mentions of CONFIG_OF in comments ...

barebox doesn't define a CONFIG_OF kconfig option, but CONFIG_OFTREE
for the device tree handling and CONFIG_OFDEVICE for probing devices
out of the device tree.

Replace comment mentions of CONFIG_OF with mentions of either as
appropriate.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/usb-phy'

Merge branch 'for-next/usb-ehci'