Merge branch 'for-next/ofpart'

Merge branch 'for-next/misc'

video: ipu: register framebuffer, even when no modes are found ...

When no monitor is connected it might be normal that no modes are found.
Do not bail out with an error in this case, which gives an ugly error
message, but instead still register the framebuffer. This gives the
user a chance to examine it and see that the framebuffer has no modes.

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

video: ipu: convert "failed to get modes" message to dev_dbg ...

When no monitor is connected the it's normal for some outputs
that no modes can be found. Convert dev_err to dev_dbg to decrease
the visibility of this message.

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

treewide: Use of_property_write_string() where appropriate ...

Replace users which use of_set_property() to set a property to a string
with of_property_write_string().

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

video: edid.c: fix "no previous prototype" warning ...

The patch fixes this compiler's warning:

drivers/video/edid.c:390:5: warning: no previous prototype
        for 'fb_get_mode' [-Wmissing-prototypes]
 int fb_get_mode(int flags, u32 val, struct fb_videomode *var)
     ^

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

Merge branch 'for-next/video'

Merge branch 'for-next/efi'

video: make enable/disable ops optional ...

Some framebuffers cannot be enabled/disabled, so make the corresponding
ops optional.

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

video: call fb_[en|dis]able instead of fops directly ...

We have fb_enable and fb_disable which handle enabling of a
framebuffer, so use it instead of calling into the ops directly.
This gets the enable count straight.

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

video: add EFI Graphics Output Protocol support ...

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

video: sdl fix typo ...

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

video: add support for Solomon SSD1307 OLED controller family ...

It was ported from linux v4.10. Like the kernel driver only
communication via I2C is supported.

It has only been tested with a SSD1306 and a 96x16 OLED display:

	&i2c0 {
		status = "okay";

		ssd1306: oled@3c {
			compatible = "solomon,ssd1306fb-i2c";
			reg = <0x3c>;
			reset-gpios = <&gpio1 1 0>;
			solomon,height = <16>;
			solomon,width = <96>;
			solomon,page-offset = <0>;
			solomon,com-invdir;
			solomon,com-seq;
		};

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

fb: introduce flush for virtual framebuffer ...

Some drivers need an explicit sync method to flush the virtual
framebuffer to the display. It is called fb_flush().

fb_flush() gets called on fbc_putc, on fb_close and in the pattern cycle
in the fbtest command.

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

console: replace set_active by open/close ...

Opening and closing consoles should be independent from setting them
active. This way it is possible to open e.g. a framebuffer console and
display text on it without showing stdout/stderr.

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

fbconsole: implement vt100 cursor shown/hidden ...

This implements the vt100 show cursor command '[?25h' and the hide
cursor command '[?25l'. It is useful for displaying text on a non-active
(no stdout/stdin/stderr) console with 'echo'.

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

fbconsole: check cursor position before moving ...

Moving the cursor to x=2, y=2 with "\e[3;3H" on a 12x2 framebuffer
console lead to a barebox crash while drawing the cursor. If the
cursor position is out of bounds clip the cursor to the corresponding
edge.

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

video: tc358767: add copyright lines ...

Add copyright lines for Zodiac who paid for driver development.

Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

video: IPU framebuffer: honor clock and enable polarities ...

These flags are already parsed from DT, so we can just use them to
configure the timings correctly.

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

i.MX: IPUv3: Add parallel display support ...

Add a driver compatible with "fsl,imx-parallel-display" in order
to enable parallel display with the i.MX IPUv3.

Signed-off-by: Philippe Leduc <ledphilippe@gmail.com>
Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

video: tc358767: depend on EDID helpers ...

The eDP part need to be able to read the panel EDID.

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

Merge branch 'for-next/video'

video/edid: Fix edid_to_display_timings error path ...

edid_to_display_timings is called in drivers/video/imx-ipu-v3/imx-hdmi.c,
drivers/video/simple-panel.c, and drivers/video/edid.c with the struct
display_timings *timings parameter pointing to an embedded struct
display_timings inside a struct fb_info. The timings pointer is not to
be freed in the error path.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

video: backlight: fix the value of 'brightness_max' ...

Fixes: 87c6a88 video/backlight-pwm: fix the value of 'brightness_max'.

brightness_max should really contain the number of brightness steps, so
the number of elements in the brightness array.

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

video: tc358767: add eDP video encoder driver ...

This patch adds support for the Toshiba TC358767 eDP bridge,
connected via DPI.

Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

video: add VPL ioctl to get bus format ...

The i.MX specific DI_MODE VPL ioctl already allows to query the encoder
input bus format. This patch also allows non-i.MX specific encoder drivers
to report their input bus format.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

video: switch to media bus formats ...

V4L2 pixel formats are supposed to describe video frames in memory. To
describe the pixel format on the hardware bus between display interface
and encoders, use media bus formats, which are more expressive.

This allows to get rid of the custom GBR24 and LVDS666 fourccs.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

video/backlight-pwm: properly handle the case of an empty 'brightness-levels' in the device tree. ...

In case of an empty 'brightness-levels' array in the device tree or
a non empty one but containing only zeros the value of
'pwm_backlight->scale' would remain 0 possibly causing a division by zero
in the function compute_duty_cycle().

To fix it we check the computed value in case we actually have a 'brightness-levels'
array in the device tree otherwise we implicitly assume a simple array
of the form { 0, 1, 2, ..., 100 } and set the scale to 100.

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

video/backlight-pwm: code readability improvement. ...

We use the local variable 'length' instead of the lengthy
'pwm_backlight->backlight.brightness_max' within pwm_backlight_parse_dt().

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

video/backlight-pwm: fix the value of 'brightness_max'. ...

The field pwm_backlight->backlight.brightness_max should be the maximum
allowed brightness value for the backlight, not the max index of the
array 'pwm_backlight->levels[]'.

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