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>

Merge branch 'for-next/imx'

video: i.MX IPUv3: Set ldb clocks correctly ...

The clocks for the LVDS display bridge have a fixed /3.5 and a
configurable /1,/2 divider in their path. The configurable divider has
to be explicitly configured for single/dual channel support, so we can't
rely on clock rate parent propagation here. Clear the
CLK_SET_RATE_PARENT flag for the configurable divider and configure the
clock explicitly in the ldb driver.
Tested on a custom i.MX6 board, currently untested on i.MX53.

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

video: pwm-backlight: Honour discrete brightness levels from dt ...

If probed from device tree we have an array of pwm duty cycle levels
in the brightness-levels property. Although the driver parsed the property,
the values have been ignored. Make use of these flags so that the driver
can work for example with inverted PWMs.

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

font: fbconsole: add custom font supports ...

Signed-off-by: Du Huanpeng <u74147@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fbconsole: move font variable into struct font_desc ...

replace font related variables with a struct pointer,
font_desc.

Signed-off-by: Du Huanpeng <u74147@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/misc'

Merge branch 'for-next/memtest'

Merge branch 'for-next/imx'

fb: alloc or free shadowfb whether fb enabled or disabled ...

Resolution can't be changed anyway once fb_enable() has been called,
since no corresponding fb_disable() call appears in the code.

Signed-off-by: Aleksey Kuleshov <rndfax@yandex.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fb: satisfy semantics for shadowfb's alloc/free ...

Console enable -> alloc shadowfb.
Console disable -> free shadowfb.
Otherwise, if resolution gets changed, shadowfb will not be affected.

Signed-off-by: Aleksey Kuleshov <rndfax@yandex.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fbconsole: no need to copy extra line ...

Signed-off-by: Aleksey Kuleshov <rndfax@yandex.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

rework remap_range ...

remap_range is for remapping regions with different cache attributes.
It is implemented for ARM and PowerPC only, the other architectures only
provide stubs.
Currently the new cache attributes are passed in an architecture specific
way and the attributes have to be retrieved by calls to
mmu_get_pte_cached_flags() and mmu_get_pte_uncached_flags().
Make this simpler by providing architecture independent flags which can
be directly passed to remap_range()
Also provide a MAP_ARCH_DEFAULT flag and a arch_can_remap() function.
The MAP_ARCH_DEFAULT defaults to whatever caching type the architecture
has as default. the arch_can_remap() function returns true if the
architecture can change the cache attributes, false otherwise. This
allows the memtest code to better find out what it has to do.

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

video: ipuv3: Silence VPL message ...

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

video: simple-panel: depend on OFDEVICE ...

Fixes:
In function `simple_panel_ioctl':
undefined reference to `of_get_display_timings'

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

Merge branch 'for-next/misc'

video: backlight-pwm: Add regulator support ...

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

video: backlight-pwm: Add error message ...

Inform the user when we can't find a pwm for the backlight driver.

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

video: ipuv3: print error message when no modes are found ...

This is a common error, so print a message to inform the user
what went wrong.

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

video: simple-panel: Add support for device tree provided nodes ...

This adds support for display timings provided from device tree.

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

video: simple-panel: Add debug/error messages ...

Let the driver be more informative when something goes wrong.

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

video: ipuv3: imx-ldb: Support video modes in ldb node ...

We used to support video modes directly in the ldb device node, that
was lost in: 5bda17e video: ipuv3: Replace ipu_output with VPL.
Add this support back. Also drop duplicate vpl ioctl forwarding for
several calls.

With this patch modes can either be retrieved from the ldb node as
originally done or from the panel remote port.

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

video: ipuv3: imx-ldb: remove unused variable ...

endpoint is set but not used. Remove the code.

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

video: ipuv3: Do not crash when no mode is found ...

When something is missing in the device tree or not all necessary
drivers are compiled in it may happen that no valid mode is found.
Do not crash in this case but print an error message.

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

video: imx-hdmi: Remove unused 'regmap' structure ...

As regmap is not used in Barebox we can remove this field
from the imx_hdmi struct.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

introduce strerrorp ...

putting an error pointer into strerror can be a bit confusing since
strerror takes a positive error code but PTR_ERR returns a negative
number, so we have to do strerror(-PTR_ERR(errp)). Some places got
this wrong already, so introduce a strerrorp function which directly
takes an error pointer.

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

video: imx: assert that image buffer doesn't cross a 4 MiB boundary ...

The reference manual (for the i.MX25 in my case) states:

	This field must start at a location that enables a complete
	picture to be stored in a 4 Mbyte memory boundary (A [21:0]). A
	[31:22] has a fixed value for a picture’s image.

Check this condition for user-supplied framebuffer values and enforce it
for driver-allocated buffers.

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

video: imx-hdmi: depend on EDID support ...

HDMI support is not generally useful without EDID support.

Fixes:
In function `imx_hdmi_ioctl':
undefined reference to `edid_read_i2c'
undefined reference to `edid_to_display_timings'

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

video: vpl: depend on OFTREE ...

VPL uses the of_graph bindings, which are only available if OFTREE
support is compiled in.

Also fix the drivers using VPL to depend on OFTREE.

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

Merge branch 'for-next/fb-imx-ipu-v3'