linux-toradex.git/drivers/gpu/drm/bridge/cdns-dsi.c, branch v5.3-rc8

drm/bridge: cdns: Convert to phy framework

2019-02-07T08:48:40+00:00

Now that we have everything we need in the phy framework to allow to tune
the phy parameters, let's convert the Cadence DSI bridge to that API
instead of creating a ad-hoc driver for its phy.

Acked-by: Sean Paul 
Signed-off-by: Maxime Ripard 
Link: https://patchwork.freedesktop.org/patch/msgid/8772ad061f07cd91fa48bb05880095b25eccec08.1548085432.git-series.maxime.ripard@bootlin.com

drm/bridge: cdns: Separate DSI and D-PHY configuration

2019-02-07T08:41:27+00:00

The current configuration of the DSI bridge and its associated D-PHY is
intertwined. In order to ease the future conversion to the phy framework
for the D-PHY part, let's split the configuration in two.

Reviewed-by: Paul Kocialkowski 
Signed-off-by: Maxime Ripard 
Link: https://patchwork.freedesktop.org/patch/msgid/0b3bea44e05745b65c23af7926ca546bc80a1bcc.1548085432.git-series.maxime.ripard@bootlin.com

drm: Split out drm_probe_helper.h

2019-01-24T12:20:42+00:00

Having the probe helper stuff (which pretty much everyone needs) in
the drm_crtc_helper.h file (which atomic drivers should never need) is
confusing. Split them out.

To make sure I actually achieved the goal here I went through all
drivers. And indeed, all atomic drivers are now free of
drm_crtc_helper.h includes.

v2: Make it compile. There was so much compile fail on arm drivers
that I figured I'll better not include any of the acks on v1.

v3: Massive rebase because i915 has lost a lot of drmP.h includes, but
not all: Through drm_crtc_helper.h > drm_modeset_helper.h -> drmP.h
there was still one, which this patch largely removes. Which means
rolling out lots more includes all over.

This will also conflict with ongoing drmP.h cleanup by others I
expect.

v3: Rebase on top of atomic bochs.

v4: Review from Laurent for bridge/rcar/omap/shmob/core bits:
- (re)move some of the added includes, use the better include files in
  other places (all suggested from Laurent adopted unchanged).
- sort alphabetically

v5: Actually try to sort them, and while at it, sort all the ones I
touch.

v6: Rebase onto i915 changes.

v7: Rebase once more.

Acked-by: Harry Wentland 
Acked-by: Sam Ravnborg 
Cc: Sam Ravnborg 
Cc: Jani Nikula 
Cc: Laurent Pinchart 
Acked-by: Rodrigo Vivi 
Acked-by: Benjamin Gaignard 
Acked-by: Jani Nikula 
Acked-by: Neil Armstrong 
Acked-by: Oleksandr Andrushchenko 
Acked-by: CK Hu 
Acked-by: Alex Deucher 
Acked-by: Sam Ravnborg 
Reviewed-by: Laurent Pinchart 
Acked-by: Liviu Dudau 
Signed-off-by: Daniel Vetter 
Cc: linux-arm-kernel@lists.infradead.org
Cc: virtualization@lists.linux-foundation.org
Cc: etnaviv@lists.freedesktop.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: intel-gfx@lists.freedesktop.org
Cc: linux-mediatek@lists.infradead.org
Cc: linux-amlogic@lists.infradead.org
Cc: linux-arm-msm@vger.kernel.org
Cc: freedreno@lists.freedesktop.org
Cc: nouveau@lists.freedesktop.org
Cc: spice-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
Cc: linux-renesas-soc@vger.kernel.org
Cc: linux-rockchip@lists.infradead.org
Cc: linux-stm32@st-md-mailman.stormreply.com
Cc: linux-tegra@vger.kernel.org
Cc: xen-devel@lists.xen.org
Link: https://patchwork.freedesktop.org/patch/msgid/20190117210334.13234-1-daniel.vetter@ffwll.ch

drm/bridge: cdns: prepare for drmP.h removal from drm_modeset_helper.h

2019-01-24T12:07:03+00:00

The use of drmP.h is discouraged and removal of it from
drm_modeset_helper.h caused cdns to fail to build.

This patch introduce the necessary fixes to prepare for the
drmP.h removal from drm_modeset_helper.h.

Build tested on arm x86 and arm allmodconfig.

Signed-off-by: Sam Ravnborg 
Cc: Andrzej Hajda 
Cc: Laurent Pinchart 
Cc: David Airlie 
Cc: Daniel Vetter 
Signed-off-by: Daniel Vetter 
Link: https://patchwork.freedesktop.org/patch/msgid/20190119084014.5355-5-sam@ravnborg.org

drm/panel: Make of_drm_find_panel() return an ERR_PTR() instead of NULL

2018-07-10T15:59:05+00:00

Right now, the DRM panel logic returns NULL when a panel pointing to
the passed OF node is not present in the list of registered panels.

Most drivers interpret this NULL value as -EPROBE_DEFER, but we are
about to modify the semantic of of_drm_find_panel() and let the
framework return -ENODEV when the device node we're pointing to has
a status property that is not equal to "okay" or "ok".

Let's first patch the of_drm_find_panel() implementation to return
ERR_PTR(-EPROBE_DEFER) instead of NULL and patch all callers to replace
the '!panel' check by an 'IS_ERR(panel)' one.

Signed-off-by: Boris Brezillon 
Signed-off-by: Thierry Reding 
Link: https://patchwork.freedesktop.org/patch/msgid/20180509130042.9435-2-boris.brezillon@bootlin.com

drm/bridge: cdns: Mark runtime PM operations as maybe unused

2018-05-18T09:22:06+00:00

Building the driver in a configuration with !PM currently causes a
warning about these operations being unused. Mark them as such to shut
up the compiler.

Reviewed-by: Daniel Vetter 
Signed-off-by: Thierry Reding 
Link: https://patchwork.freedesktop.org/patch/msgid/20180426135853.30895-1-thierry.reding@gmail.com

drm/bridge: Add Cadence DSI driver

2018-04-23T17:12:18+00:00

Add a driver for Cadence DPI -> DSI bridge.

This driver only support a subset of Cadence DSI bridge capabilities.

This driver has been tested/debugged in a simulated environment which
explains why some of the features are missing.  Here is a
non-exhaustive list of missing features:
 * burst mode
 * DPHY init/configuration steps
 * support for additional input interfaces (SDI input)

DSI commands and non-burst video mode have been tested.

Signed-off-by: Boris Brezillon 
Reviewed-by: Andrzej Hajda 
Acked-by: Eric Anholt 
Reviewed-by: Archit Taneja 
Link: https://patchwork.freedesktop.org/patch/msgid/20180421070846.10330-1-boris.brezillon@bootlin.com