pinctrl: imx-iomux-v3: Add i.MX8MP compatible ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/misc'

Merge branch 'for-next/kconfig'

drivers: add COMPILE_TEST prompts to some on-by-default drivers ...

Many clock source and GPIO controller drivers don't have a prompt, but
are instead default y if their respective platform is enabled. Maintain
this behavior, but add a prompt for when COMPILE_TEST is enabled, so
they can be included in test builds.

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

drivers: mark first batch of compilable drivers for COMPILE_TEST ...

All of these drivers have a runtime dependency on SoC peripherals, but
can nevertheless be compile-tested. Add COMPILE_TEST as an alternate
dependency.

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

treewide: Kconfig: remove some unused symbols ...

All these symbols are defined, but unused anywhere in the barebox tree.
Remove them.

Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

treewide: remove references to CREDITS ...

The CREDITS file was removed from barebox in 2015 by commit 6570288f2d97
("Remove the CREDITS file"). Remove references to it from several files.

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

Merge branch 'for-next/stm32'

Merge branch 'for-next/imx'

pinctrl-single: fix parsing of `pinctrl-single,bits` property ...

According to dts/Bindings/pinctrl/pinctrl-single.txt:113 the correct order of
parameters is <offset, value, mask>.

Fixes: f7e0cae43 ('pinctrl-single: Handle "pinctrl-single,function-mask" dt property')
Signed-off-by: Peter Mamonov <pmamonov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

phy: remove unused init_data parameter ...

Linux has since migrated to a new lookup API that lacks the init_data
parameter. As it's unused in barebox, follow suit.

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

iomux: Add i.MX8MM support ...

Just add the compatible string, nothing more to do.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/misc'

pinctrl-single: Handle "pinctrl-single,function-mask" dt property ...

Implement linux behavior regarding "pinctrl-single,function-mask" and
"pinctrl-single,bits".
It allows multiple pins control per register.

(linux sha1: 4e7e801)

Signed-off-by: Simeon Marijon <simeon@marijon.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

pinctrl: imx-v3: Support for imx6ull-iomuxc-snvs ...

Signed-off-by: Christian Eggers <ceggers@arri.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

pinctrl: at91pio4 depends on OFDEVICE ...

Some of the selected options require OFDEVICE to be enabled. As the driver
is only used of DT probed systems it's okay to depend on OFDEVICE.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

pinctrl: tegra: mark drvdata as maybe unused ...

If the driver is only built for one of the two supported SoCs we end
up with some unused structures.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

pinctrl: at91pio4: move to correct location in Kconfig ...

The driver also depends on PINCTRL, so we should only allow it to
be enabled if this option is selected. We can also drop the OFDEVICE
dependency then, as this is required for PINCTRL.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

pinctrl: stm32: parse pinctrl nodes without subnodes as well ...

The bindings allow the pinmux node to occur directly in the node under
the pin controller as well. Check for this and support both types of
pinctrl specification.

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

pinctrl: demote dev_info on successful probes to dev_dbg ...

The SoC's pin controller is virtually always built and probed, so
there's is little information to gain from the fact it was successfully
probed. Have the success message show up as debug message to reduce probe
clutter like this:

	NOTICE: stm32-pinctrl soc:pin-controller@50002000.of: pinctrl/gpio driver registered
	NOTICE: stm32-pinctrl soc:pin-controller-z@54004000.of: pinctrl/gpio driver registered

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

pinctrl: stm32: fix debug print of uninitialized variable ...

mode and alt are printed with the dev_dbg before they are initialized.
Remedy this by moving the dev_dbg after them.

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

pinctrl: add gpio and pinctrl driver for sama5d2 PIO4 ...

The sama5d2 features a GPIO and pin controller different than the one
we support in barebox. The device tree bindings are different as well,
so it makes sense to have a separate driver for it.

Add the pin control and GPIO driver as well as some helpers usable
from PBL, should we want to do pinmuxing that early.

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

pinctrl: i.MX iomux-v1: Add i.MX1 support ...

This adds the device tree compatible for the i.MX1 iomux.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

pinctrl: i.MX iomux-v1: Make base address initialization unnecessary ...

So far we have imx_gpio_mode() to configure a pinmux entry for the older
i.MX pinmuxes. For this to work imx_iomuxv1_init() must be called
beforehand to configure the base address. Simplify this by introducing
SoC specific variants of imx_gpio_mode() which also pass the base
address. This makes initialization of the base address unnecessary and
the functions usable for PBL. Consequently also compile the code for
PBL.

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>

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>

ARM: at91: replace __raw_{readl, writel} of peripherals with readl, writel ...

Use the potentially endianness-changing readl, writel and siblings
directly. They looks prettier and are the correct thing to do, as
even if the CPU is in big-endian mode, the peripherals are little-endian.

Unlike Linux, barebox readl,writel are the same Linux'
{readl,writel}_relaxed (they don't imply memory barriers)
and thus there shouldn't be any functional change.

Patch was generated by a mass search and replace. I looked it over,
adjust some whitespace and further verified by reviewing the output of

	git diff HEAD~1 --word-diff | \
		perl -pe 's/\[-(.*?)__raw_/{+$1/; s/-\]\{\+/+}{+/;' \
		-e 's/(\{\+.*?\+\})\1/__ALL_IS_WELL__/' | grep '+}{+'

which filters out the common case of lines where a single
__raw_{readT,writeT} had its __raw_ prefix stripped without any
further changes.

Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Tested-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

treewide: surround Kconfig file paths with double quotes ...

Based on Linux commit 8636a1f

This will be needed when you sync Kconfig with Linux 5.0 or later.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

pinctrl: bcm2835: register the pin controller. ...

This adds hooks for the pin controller driver to the existing
bcm2835_set_function().

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>