The master argument isn't used. The data argument, a void pointer, is
used by the bind function only where it's cast to a drm_device pointer,
which can easily be obtained from the encoder argument instead. Remove
them.
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: NJose Abreu <joabreu@synopsys.com>
Signed-off-by: NArchit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20170117082910.27023-3-laurent.pinchart+renesas@ideasonboard.com

This header adds definitions specific to MHL protocol.
Signed-off-by: NAndrzej Hajda <a.hajda@samsung.com>
Signed-off-by: NArchit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1475823762-16237-2-git-send-email-a.hajda@samsung.com

So users know whether PSR should be enabled or not.

Cc: Yakir Yang <ykk@rock-chips.com>
Reviewed-by: NSean Paul <seanpaul@chromium.org>
Signed-off-by: NTomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: NArchit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1474639600-30090-1-git-send-email-tomeu.vizoso@collabora.com

The full name of PSR is Panel Self Refresh, panel device could refresh
itself with the hardware framebuffer in panel, this would make lots of
sense to save the power consumption.

This patch have exported two symbols for platform driver to implement
the PSR function in hardware side:
- analogix_dp_active_psr()
- analogix_dp_inactive_psr()
Reviewed-by: NArchit Taneja <architt@codeaurora.org>
Signed-off-by: NYakir Yang <ykk@rock-chips.com>
Signed-off-by: NSean Paul <seanpaul@chromium.org>

It's better to pass the connector to platform driver in .get_modes()
callback, just like what the .get_modes() helper function designed.
Signed-off-by: NYakir Yang <ykk@rock-chips.com>
Reviewed-by: NSean Paul <seanpaul@chromium.org>
Reviewed-by: NTomasz Figa <tomasz.figa@chromium.com>

RK3399 and RK3288 shared the same eDP IP controller, only some light
difference with VOP configure and GRF configure.
Signed-off-by: NYakir Yang <ykk@rock-chips.com>
Acked-by: NMark Yao <mark.yao@rock-chips.com>
Reviewed-by: NTomasz Figa <tomasz.figa@chromium.com>
Reviewed-by: NSean Paul <seanpaul@chromium.org>

As vendor document indicate, when REF_CLK bit set 0, then DP
phy's REF_CLK should switch to 24M source clock.

But due to IC PHY layout mistaken, some chips need to flip this
bit(like RK3288), and unfortunately they didn't indicate in the
DP version register. That's why we have to make this little hack.
Signed-off-by: NYakir Yang <ykk@rock-chips.com>
Reviewed-by: NTomasz Figa <tomasz.figa@chromium.com>
Tested-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Reviewed-by: NSean Paul <seanpaul@chromium.org>

Rockchip have three clocks for dp controller, we leave pclk_edp
to analogix_dp driver control, and keep the sclk_edp_24m and
sclk_edp in platform driver.
Acked-by: NMark Yao <mark.yao@rock-chips.com>
Tested-by: NCaesar Wang <wxt@rock-chips.com>
Tested-by: NDouglas Anderson <dianders@chromium.org>
Tested-by: NHeiko Stuebner <heiko@sntech.de>
Signed-off-by: NYakir Yang <ykk@rock-chips.com>
Signed-off-by: NHeiko Stuebner <heiko@sntech.de>

Split the dp core driver from exynos directory to bridge directory,
and rename the core driver to analogix_dp_*, rename the platform
code to exynos_dp.

Beside the new analogix_dp driver would export six hooks.
"analogix_dp_bind()" and "analogix_dp_unbind()"
"analogix_dp_suspned()" and "analogix_dp_resume()"
"analogix_dp_detect()" and "analogix_dp_get_modes()"

The bind/unbind symbols is used for analogix platform driver to connect
with analogix_dp core driver. And the detect/get_modes is used for analogix
platform driver to init the connector.

They reason why connector need register in helper driver is rockchip drm
haven't implement the atomic API, but Exynos drm have implement it, so
there would need two different connector helper functions, that's why we
leave the connector register in helper driver.
Acked-by: NInki Dae <inki.dae@samsung.com>
Tested-by: NCaesar Wang <wxt@rock-chips.com>
Tested-by: NDouglas Anderson <dianders@chromium.org>
Tested-by: NHeiko Stuebner <heiko@sntech.de>
Tested-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: NYakir Yang <ykk@rock-chips.com>
Signed-off-by: NHeiko Stuebner <heiko@sntech.de>

iMX6 devices suffer from an errata (ERR005174) where the audio FIFO can
be emptied while it is partially full, resulting in misalignment of the
audio samples.

To prevent this, the errata workaround recommends writing N as zero
until the audio FIFO has been loaded by DMA.  Writing N=0 prevents the
HDMI bridge from reading from the audio FIFO, effectively disabling
audio.

This means we need to provide the audio driver with a pair of functions
to enable/disable audio.  These are dw_hdmi_audio_enable() and
dw_hdmi_audio_disable().

A spinlock is introduced to ensure that setting the CTS/N values can't
race, ensuring that the audio driver calling the enable/disable
functions (which are called in an atomic context) can't race with a
modeset.
Tested-by: NYakir Yang <ykk@rock-chips.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Introduce dw_hdmi_set_sample_rate(), which allows us to configure the
audio sample rate, setting the CTS/N values appropriately.
Tested-by: NYakir Yang <ykk@rock-chips.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

This header file declares prototypes of functions that are no longer
used. Remove this file and all references to it.
Signed-off-by: NThierry Reding <treding@nvidia.com>

Because of iMX6 & Rockchip have differnet mpll config parameter,
the VLEVCTRL parameter would be different. In this case we should
separate VLEVCTRL setting from the common dw_hdmi driver, config
this parameter in platform driver(dw_hdmi-imx and dw_hdmi-rockchip)
Signed-off-by: NYakir Yang <ykk@rock-chips.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Currently, third party bridge drivers(ptn3460) are dependent
on the corresponding encoder driver init, since bridge driver
needs a drm_device pointer to finish drm initializations.
The encoder driver passes the drm_device pointer to the
bridge driver. Because of this dependency, third party drivers
like ptn3460 doesn't adhere to the driver model.

In this patch, we reframe the bridge registration framework
so that bridge initialization is split into 2 steps, and
bridge registration happens independent of drm flow:
--Step 1: gather all the bridge settings independent of drm and
	  add the bridge onto a global list of bridges.
--Step 2: when the encoder driver is probed, call drm_bridge_attach
	  for the corresponding bridge so that the bridge receives
	  drm_device pointer and continues with connector and other
	  drm initializations.

The old set of bridge helpers are removed, and a set of new helpers
are added to accomplish the 2 step initialization.

The bridge devices register themselves onto global list of bridges
when they get probed by calling "drm_bridge_add".

The parent encoder driver waits till the bridge is available
in the lookup table(by calling "of_drm_find_bridge") and then
continues with its initialization.

The encoder driver should also call "drm_bridge_attach" to pass
on the drm_device to the bridge object.

drm_bridge_attach inturn calls "bridge->funcs->attach" so that
bridge can continue with drm related initializations.
Signed-off-by: NAjay Kumar <ajaykumar.rs@samsung.com>
Acked-by: NInki Dae <inki.dae@samsung.com>
Tested-by: NRahul Sharma <rahul.sharma@samsung.com>
Tested-by: NJavier Martinez Canillas <javier.martinez@collabora.co.uk>
Tested-by: NGustavo Padovan <gustavo.padovan@collabora.co.uk>
Tested-by: NSjoerd Simons <sjoerd.simons@collabora.co.uk>
Signed-off-by: NThierry Reding <treding@nvidia.com>

Rockchip RK3288 hdmi is compatible with dw_hdmi
Signed-off-by: NAndy Yan <andy.yan@rock-chips.com>
Tested-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Acked-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>

the original imx hdmi driver is under drm/imx/,
which depends on imx-drm, so move the imx hdmi
driver out to drm/bridge and rename it to dw_hdmi
Signed-off-by: NAndy Yan <andy.yan@rock-chips.com>
Tested-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Acked-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>

This failed to build =m, quick fix.
Signed-off-by: NDave Airlie <airlied@redhat.com>

This patch adds a drm_bridge driver for the PTN3460 DisplayPort to LVDS
bridge chip.
Signed-off-by: NSean Paul <seanpaul@chromium.org>
Signed-off-by: NInki Dae <inki.dae@samsung.com>