Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

Configures the framer of the HDMI connection.
By default starts in HDMI mode and can be swtich to DVI.
Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

Make the value of the colorspace of the HDMI infoframe configurable.
HDMI colorspace could be: RGB, YUV422 or YUV444
Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

Vendor specific infoframe is mandatory for 4K2K resolution.
Without this, the HDMI protocol compliance fails.
Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

Clear all infoframe registers when the HDMI link is stopped.
Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

Set the infoframe transmission mode according to the type of
the infoframe.
Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

Make sure the HD DACS are disabled when the HDA connector
is created.
Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

Modify AWG algorithm in order to handle more than 1023 lines
Signed-off-by: NBich Hemon <bich.hemon@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: NVincent Abriou <vincent.abriou@st.com>

Modify delay to display last pixel column on DVO
Signed-off-by: NBich Hemon <bich.hemon@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: NVincent Abriou <vincent.abriou@st.com>

Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

The DVO connector is tag as disconnect because of a wrong management
of the panel detection.
Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

Disable the clipping mode for hdmi, dvo and hda connectors.
Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

Use BT601 for SD/ED resolution and BT709 for HD resolution
Signed-off-by: NBich Hemon <bich.hemon@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: NVincent Abriou <vincent.abriou@st.com>

Atomic update should never fail. Thus all checks must be done in
the atomic_check function for each plane (gdp, hqvdp and cursor).
Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

It may happen that the cursor is displayed with wrong colors which can
be explained by a CLUT wrongly fetched at the first display.
Fetching the CLUT at each commit (=move) ensures that the right colors
are used, at least from the first cursor move.
Signed-off-by: NFabien Dessenne <fabien.dessenne@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: NVincent Abriou <vincent.abriou@st.com>

GDP source width should be equal to the destination width to get
rid of this issue.
Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

When a GDP gets a scale request (which it does not support), it accepts it
but crops or clamps and outputs a warning message.
Signed-off-by: NBich Hemon <bich.hemon@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: NVincent Abriou <vincent.abriou@st.com>

Only RGB formats supported by GDP planes
Signed-off-by: NBich Hemon <bich.hemon@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: NVincent Abriou <vincent.abriou@st.com>

When a frame or a field is skipped, output a Warning message instead of
an Error message.
Signed-off-by: NFabien Dessenne <fabien.dessenne@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: NVincent Abriou <vincent.abriou@st.com>

data_en is a local variable that doesn't need to be set as
awg_generate_instr can be called directly with the requested value.
Signed-off-by: NBich Hemon <bich.hemon@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: NVincent Abriou <vincent.abriou@st.com>

This update eases to understand the VTG programming.
It also sets a VTG output id for each supported connectors.
Signed-off-by: NVincent Abriou <vincent.abriou@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>

sti now support of atomic modesetting so set the flag to enable it.
Signed-off-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: NVincent Abriou <vincent.abriou@st.com>

fix x/y typo while setting cursor coordinates
Signed-off-by: NFabien Dessenne <fabien.dessenne@st.com>
Reviewed-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: NVincent Abriou <vincent.abriou@st.com>

Set CRTC modesetting parameters to avoid warnings in atomic mode.
Signed-off-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: NVincent Abriou <vincent.abriou@st.com>

In some cases last_close() could be called before sti_gdp_disable()
and make kernel crash because mixer structure has been destroy.
Let's gdp keep a reference on vtg to fix that (like it is already done
in HQVDP)
Signed-off-by: NBenjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: NVincent Abriou <vincent.abriou@st.com>

As previously discussed, this is my first pull request for the DCU DRM
driver along with the change in MAINTAINERS.
https://lkml.org/lkml/2016/1/7/26

The pull contains some code cleanup changes (e.g. removing all error
handling for the regmap calls) and several fixes.

* 'for-next' of http://git.agner.ch/git/linux-drm-fsl-dcu:
  drm/fsl-dcu: fix register initialization
  drm/fsl-dcu: use mode flags for hsync/vsync polarity
  drm/fsl-dcu: fix alpha blending
  drm/fsl-dcu: mask all interrupts on initialization
  drm/fsl-dcu: handle initialization errors properly
  drm/fsl-dcu: avoid memory leak on errors
  drm/fsl-dcu: remove regmap return value checks
  drm/fsl-dcu: specify volatile registers
  drm: fsl-dcu: Fix no fb check bug
  MAINTAINERS: update for Freescale DCU DRM driver

The layer enumeration start with 0 (0-15 for LS1021a and 0-63 for
Vybrid) whereas the register enumeration start from 1 (1-10 for
LS1021a and 1-9 for Vybrid). The loop started off from 0 for both
iterations and initialized the number of layers inclusive, which
is one layer too many.

All extensively written registers seem to be unassigned, it seems
that the write to those registers did not do any harm in practice.
Signed-off-by: NStefan Agner <stefan@agner.ch>

The current default configuration is as follows:
- Invert VSYNC signal (active LOW)
- Invert HSYNC signal (active LOW)

The mode flags allow to specify the required polarity per
mode. Furthermore, none of the current driver settings is
actually a standard polarity.

This patch applies the current driver default polarities as
explicit flags to the display which has been introduced with
the driver (NEC WQVGA "nec,nl4827hc19-05b"). The driver now
also parses the flags field and applies the configuration
accordingly, by using the following values as standard
polarities: (e.g. when no flags are specified):
- VSYNC signal not inverted (active HIGH)
- HSYNC signal not inverted (active HIGH)
Acked-by: NThierry Reding <treding@nvidia.com>
Signed-off-by: NStefan Agner <stefan@agner.ch>

Fix alpha blending by enabling alpha blending for the whole frame if
a color mode with alpha channel is selected (DRM_FORMAT_ARGB*). Also
support color modes without alpha channel (DRM_FORMAT_XRGB*) by just
not enabling alpha blending on layer level.
Signed-off-by: NStefan Agner <stefan@agner.ch>

The state of the interrupt mask register on initialization is
unknown, e.g. U-Boot could already used the DCU. So depending on
the boot loader, the outcome of the interrupt mask register could
be different. A defined state is much more preferable. Also, there
is no value in keeping interrupts enabled which we don't need.
Therefor, mask all interrupts on initialization.
Signed-off-by: NStefan Agner <stefan@agner.ch>

If initialization fails (e.g. due to missing panel node or deferred
probe) make sure to roll-back all operations and return the error
code.
Signed-off-by: NStefan Agner <stefan@agner.ch>

Improve error handling during CRTC initialization. Especially avoid
memory leaks in the primary plane initialization error path.
Signed-off-by: NStefan Agner <stefan@agner.ch>

It is not common to do regmap return value checks, especially not
for memory mapped device. We can rule out most error returns since
the conditions are static and we know they are ok (e.g. offset
aligned to register stride). Also without proper error handling
they are not really valuable for the user. Hence remove most of
them.

The check in the interrupt handler is worth keeping since a
volatile register won't be readable in case register caching is
still enabled.
Signed-off-by: NStefan Agner <stefan@agner.ch>

Since we are using cached registers, we need to specify volatile
registers explicitly to avoid reading their value from the cache.
This allows to read the correct interrupt status in fsl_dcu_drm_irq
and clear the asserted bits only.
Signed-off-by: NStefan Agner <stefan@agner.ch>

For state->fb or state->crtc may be NULL in fsl_dcu_drm_plane_atomic_check
function, if so, return 0.
Signed-off-by: NMeng Yi <meng.yi@nxp.com>
Signed-off-by: NJianwei Wang <jianwei.wang.chn@gmail.com>
Signed-off-by: NStefan Agner <stefan@agner.ch>

Promote myself as new maintainer of the Freescale DCU DRM driver.
Acked-by: NJianwei Wang <jianwei.wang.chn@gmail.com>
Signed-off-by: NStefan Agner <stefan@agner.ch>

rcar-du updates.

* 'drm/next/du' of git://linuxtv.org/pinchartl/fbdev: (281 commits)
  drm: rcar-du: Add tri-planar memory formats support
  drm: rcar-du: Add probe deferral debug messages
  drm: rcar-du: lvds: Add R-Car Gen3 support
  drm: rcar-du: lvds: Rename PLLEN bit to PLLON
  drm: rcar-du: lvds: Fix PLL frequency-related configuration
  drm: rcar-du: lvds: Avoid duplication of clock clamp code
  drm: rcar-du: Add R8A7795 device support
  drm: rcar-du: Output the DISP signal on the ODDF pin
  drm: rcar-du: Output the DISP signal on the DISP pin
  drm: rcar-du: Support up to 4 CRTCs
  drm: rcar-du: Drop LVDS double dependency on OF
  drm: rcar-du: Enable compilation on ARM64
  drm: rcar-du: Fix compile warning on 64-bit platforms
  drm: rcar-du: Expose the VSP1 compositor through KMS planes
  drm: rcar-du: Move plane allocator to rcar_du_plane.c
  drm: rcar-du: Restart the DU group when a plane source changes
  drm: rcar-du: Add VSP1 compositor support
  drm: rcar-du: Add VSP1 support to the planes allocator
  drm: rcar-du: Refactor plane setup
  drm: rcar-du: Compute plane DDCR4 register value directly
  ...

Those formats are supported on Gen3 only.
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Print a message when the HDMI I2C slave encoder can't be found to help
debugging probe deferral issues.
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

The LVDS encoder differs slightly in Gen3 SoCs in its PLL configuration.
Add support for the Gen3 LVDS PLL parameters and startup procedure.
Signed-off-by: NKoji Matsuoka <koji.matsuoka.xm@renesas.com>
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>