Merge branch 'for-next/misc'

clocksource: mvebu: don't request the used iomem resource ...

The register ranges of the device nodes timer@20300 and watchdog@20300
overlap, so it is impossible that both devices properly use
request_iomem_region (e.g. by using dev_request_mem_resource). In Linux
only the watchdog driver is registered in /proc/iomem, do the same for
barebox.

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

clocksource: at91: Add DT compatibility table ...

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

efi: clocksoure: make sure the meassured frequency is valid ...

Some EFI implementations have a even slower tick rate and the meassured
frequency may be zero.

Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/rpi'

Merge branch 'for-next/efi'

clocksource: at91: Move to 'drivers/clocksource' ...

Move PIT driver code to 'drivers/clocsource' and accomodate it by
adjusting Kconfig variables. Rename the file to 'timer-atmel-pit.c' to
re-align the driver with code in Linux kernel.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

efi: clocksoure: add EFI event timer ...

with this we can be hw generic

If the EFI implement timestamp protocol we could use instead of event
but even EDK2 Never Ever compile it for any target.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

efi: move x86 clocksource to device/driver ...

so we can dynamicly register the device

As we may need to use HW IP for clocksource.

As on EFI we could use Timestamp GUID if present (Not often the case as it's
not even enabled by default on any Target on EDK II not even OVMF)

Or if we choose we could use a Simulated Timestamp driver that work on Event
(Add Later)

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

efi: move x86 clocksource init at core initcall level ...

so we can use device/driver model

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

clocksource: bcm2835: use clock-frequency property when available ...

If the clock frequency is given by a DT property, use this and don't
try to use the clock handle.

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

efi: move x86 efi boot support to x86 arch ...

prepare to drop the efi arch as efi boot up is not arch sepecific

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

efi: move bus driver to driver/efi ...

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

efi: move clocksource out of arch ...

as efi is not an arch but a boot mode from where barebox is started

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

clocksource: Add rk3288 timer driver ...

This driver comes from the u-boot (v2016.01).

Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

driver: replace dev_request_mem_region with dev_request_mem_resource ...

dev_request_mem_region doesn't work properly one some SoCs on which
PTR_ERR() values clash with valid return values from dev_request_mem_region.
Replace them with dev_request_mem_resource where possible.

This patch has been generated with the following semantic patch:

// <smpl>
@@
expression d;
expression n;
expression io;
identifier func;
@@
func(...) {
+struct resource *iores;
<+...
-io = dev_request_mem_region(d, n);
-if (IS_ERR(io)) {
+iores = dev_request_mem_resource(d, n);
+if (IS_ERR(iores)) {
...
-	return PTR_ERR(io);
-}
+	return PTR_ERR(iores);
+}
+io = IOMEM(iores->start);
...+>
}

@@
expression d;
expression n;
expression io;
identifier func;
@@
func(...) {
+struct resource *iores;
<+...
-io = dev_request_mem_region(d, n);
-if (IS_ERR(io)) {
+iores = dev_request_mem_resource(d, n);
+if (IS_ERR(iores))
-	return PTR_ERR(io);
-}
+	return PTR_ERR(iores);
+io = IOMEM(iores->start);
...+>
}

@@
expression d;
expression n;
expression io;
identifier func;
@@
func(...) {
+struct resource *iores;
<+...
-io = dev_request_mem_region(d, n);
-if (IS_ERR(io)) {
-	ret = PTR_ERR(io);
+iores = dev_request_mem_resource(d, n);
+if (IS_ERR(iores)) {
+	ret = PTR_ERR(iores);
...
}
+io = IOMEM(iores->start);
...+>
}

@@
expression d;
expression n;
expression io;
identifier func;
@@
func(...) {
+struct resource *iores;
<+...
-io = dev_request_mem_region(d, n);
+iores = dev_request_mem_resource(d, n);
+if (IS_ERR(iores))
+	return PTR_ERR(iores);
+io = IOMEM(iores->start);
...+>
}

@@
identifier func;
@@
func(...) {
<+...
struct resource *iores;
-struct resource *iores;
...+>
}
// </smpl>

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

bcm2835: introduce mach-bcm283x ...

This patch changes the most part of mach-bcm2835 to mach-bcm283x. This
prepares to add RPi2 support which is a bcm2836. This patch changes the
Kconfig entry namens to BCM283X for drivers only. These drivers should
working the same in bcm2836.

While updating defconfig I added LED support/trigger option.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

clock: incorporate dummy clocksource into core clock code ...

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

treewide: Reuse init_clock() return value for clocksource drivers ...

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

resource: Let dev_request_mem_region return an error pointer ...

For all users fix or add the error check.

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

clocksource: add driver for Canon DIGIC timer ...

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

clocksource: mvebu: split initialization for Armada 370/XP ...

Timers found on Marvell Armada 370 and XP require different setup.
While timer clock on Armada 370 can be derived from a divided
reference clocks, Armada XP always uses a 25MHz reference.

This also updates compatibles to destinguish timers for both SoCs
and fixes some whitespace issues on defines.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>

clocksource: add uemd clocksource ...

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

clocksource: add dummy software-only clocksource ...

This driver is very handy for initial barebox porting.
It was used for running barebox on DiGiC2-based camera
and initial porting barebox to Loongson-1 and ar9331.

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reported-by: Alexander Aring <alex.aring@gmail.com>
Reported-by: Alexander Shiyan <shc_work@mail.ru>

ARM: bcm2835: register the clocksource driver earlier ...

RPi's mailbox driver is used early and it needs clock functions to
handle timeouts.

Promote to a core_initcall().

Signed-off-by: Andre Heider <a.heider@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

clocksource: arm_smp_twd: Add devicetree support ...

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

clocksource: mvebu: add DT support ...

This adds device tree support to mvebu timer and also converts clk_get
to clk_lookup to find TCLK without device name reference.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

clocksource: mvebu: lookup clock by physbase ...

This converts Armada 370/XP SoC init to register tclk alias
for timer by physbase instead of name.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

clocksource: orion: add DT support ...

This adds device tree support to orion timer and also converts clk_get
to clk_lookup to find TCLK without device name reference.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

clocksource: orion: lookup clock by physbase ...

This converts Kirkwood and Dove SoC init to register tclk alias
for timer by physbase instead of name.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>