reset_source: introduce reset_source_to_string ...

We have a few places where driver code prints reset_source_name() to
console after setting the reset source.

This working is probe order dependent, because reset_source_name()
prints the highest priority reset_source so far, which doesn't
necessarily have to be the one that was just computed.

Implement reset_source_to_string, so drivers can be migrated to use it.

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

net: designware: eqos: stm32: drop no longer needed syscfg-clk ...

The upstream device tree no longer lists "syscfg-clk" and the syscon node
contains a clocks property that the barebox syscon driver now
automatically clocks before access.

Thus drop the requirement that "syscfg-clk" is specified.

Fixes: 4aaceef58 ("dts: update to v5.6-rc1")
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mfd: syscon: clock peripheral if specified in device tree ...

Linux supports a clocks property in syscon nodes to indicate that access
should only occur with the clock active.

Attach the clock to the regmap if found.

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

mfd: syscon: use regmap-mmio as backend ...

Linux supports a clocks property in syscon nodes to indicate that access
should only occur with the clock active. The new regmap-mmio supports
this, thus port syscon over, so it can make use of it in a later commit.

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

regmap: add support for regmap_init_mmio_clk ...

regmap-mmio is used in Linux for clocked memory mapped I/O regions.
Port it over, so we can more easily port drivers using it.

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

regmap: make internal.h a self-contained header ...

Follow up commit will add a new user for "internal.h".
Prepare the header for this.

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

ARM: dts: stm32mp: align barebox dtsi name with upstream ...

Upstream has split stm32mp157c.dtsi into three files:

- stm32mp157.dtsi: GPU, DSI and stm32mp153.dtsi
- stm32mp153.dtsi: 2x CAN, 2nd Cortex-A7 and stm32mp151.dtsi
- stm32mp151.dtsi: everything else

Have our barebox specific fixup file follow the new naming scheme.

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

scripts: imd: remove duplicate macro definitions ...

include/scripts/linux/kernel.h included via #include <linux/kernel.h>
later on already defines these three macros. Remove them here to avoid
the warnings about the duplicate macro definition.

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

scripts: define ALIGN(x) in scripts' <linux/kernel.h> ...

To make code sharing between utilities in scripts/ and barebox easier,
define ALIGN in the scripts/include/linux/kernel.h as well for
compatibility with the barebox include/linux/kernel.h.

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

gpiolib: use correct format specifier for ptrdiff_t ...

C99 specifies the 't' length modifier type for pointer difference.
barebox vsnprintf supports it, thus use it.

We are guaranteed sizeof(long) == sizeof(void *) in barebox, so this
doesn't make a difference in practice except that it silences
following GCC warning:

  ./drivers/gpio/gpiolib.c: In function 'gpioinfo_request':
  ./include/printk.h:77:43: warning: format '%ld' expects argument of
     type 'long int', but argument 3 has type 'int' [-Wformat=]
  ...
  ./barebox-stm32/drivers/gpio/gpiolib.c:89:3: note: in expansion of macro 'pr_err'
     89 |   pr_err("_gpio_request: gpio-%ld (%s) status %d\n",

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

clk: i.MX1: make locally used function static ...

mx1_clocks_init() is only used in one file, make it static.

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

ARM: i.MX: scb9328: Add missing machine protection ...

Make sure scb9328_devices_init() is only executed on the correct
machine.

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

Merge branch 'for-next/spdx'

Merge branch 'for-next/pwm'

Merge branch 'for-next/parameter'

Merge branch 'for-next/optee'

Merge branch 'for-next/mmc'

Merge branch 'for-next/misc'

Merge branch 'for-next/layerscape'

Merge branch 'for-next/imx-nand'

Merge branch 'for-next/imx'

Merge branch 'for-next/imdcrc'

Merge branch 'for-next/dts'

Merge branch 'for-next/clk-conf'

dts: update to v5.6-rc1 ...

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

Release v2020.02.0 ...

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

include: spi: add SPDX GPL-2.0-only license tags for files without licensing information ...

According to our /README, GPL-2.0-only applies for the whole project
except noted otherwise.

Signed-off-by: Roland Hieber <rohieb@rohieb.name>
Reviewed-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

include: spi: add SPDX GPL-2.0-or-later license tags where applicable ...

Signed-off-by: Roland Hieber <rohieb@rohieb.name>
Reviewed-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

include: add SPDX LGPL-2.1-or-later license tags where applicable ...

Signed-off-by: Roland Hieber <rohieb@rohieb.name>
Reviewed-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

LICENSES: add LGPL-2.1-or-later ...

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