Commit Graph

8 Commits

Author SHA1 Message Date
Laurent Pinchart 896bbc3ef1 drm: exynos: Perform initialization/cleanup at probe/remove time
The drm driver .load() operation is prone to race conditions as it
initializes the driver after registering the device nodes. Its usage is
deprecated, inline it in the probe function and call drm_dev_alloc() and
drm_dev_register() explicitly.

For consistency inline the .unload() handler in the remove function as
well.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
2017-02-17 15:25:59 +02:00
Laurent Pinchart 3bb80f2495 drm: bridge: Link encoder and bridge in core code
Instead of linking encoders and bridges in every driver (and getting it
wrong half of the time, as many drivers forget to set the drm_bridge
encoder pointer), do so in core code. The drm_bridge_attach() function
needs the encoder and optional previous bridge to perform that task,
update all the callers.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Stefan Agner <stefan@agner.ch> # For DCU
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> # For atmel-hlcdc
Acked-by: Vincent Abriou <vincent.abriou@st.com> # For STI
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> # For sun4i
Acked-by: Xinliang Liu <z.liuxinliang@hisilicon.com> # For hisilicon
Acked-by: Jyri Sarha <jsarha@ti.com> # For tilcdc
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1481709550-29226-4-git-send-email-laurent.pinchart+renesas@ideasonboard.com
2016-12-18 16:31:45 +05:30
Baoyou Xie d42c09628a drm/exynos: mark exynos_dp_crtc_clock_enable() static
We get 1 warning when building kernel with W=1:
drivers/gpu/drm/exynos/exynos_dp.c:46:5: warning: no previous prototype for 'exynos_dp_crtc_clock_enable' [-Wmissing-prototypes]

In fact, this function is only used in the file in which it is
declared and don't need a declaration, but can be made static.
So this patch marks it 'static'.

Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-10-01 00:39:37 +09:00
Yakir Yang fcc150c515 drm/bridge: analogix_dp: passing the connector as an argument in .get_modes()
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: Yakir Yang <ykk@rock-chips.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Tomasz Figa <tomasz.figa@chromium.com>
2016-07-05 21:53:38 +08:00
Yakir Yang d90efc9ee0 drm/exynos: dp: Fix NULL pointer dereference due uninitialized connector
Commit 3424e3a4f8 ("drm: bridge: analogix/dp: split exynos dp driver to
bridge directory") split the Exynos DP core driver into a core driver and
a bridge driver for the Analogix chip since that is also used by Rockchip.

But the change introduced a regression causing a NULL pointer dereference
when trying to access an uninitialized connector in the driver .get_modes:

Fix this by instead of having a connector struct for both the Exynos and
Analogix drivers, just use the connector initialized in the bridge driver.

Fixes: 3424e3a4f8 ("drm: bridge: analogix/dp: split exynos dp driver to bridge directory")

Reported-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Yakir Yang <ykk@rock-chips.com>
Tested-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-06-19 14:37:24 +09:00
Andrzej Hajda 196e059a8a drm/exynos: convert clock_enable crtc callback to pipeline clock
clock_enable callback is used only by FIMD->DP pipeline. Similar but more
universal functionality provides pipeline clock.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <daeinki@gmail.com>
2016-04-30 11:33:48 +09:00
Yakir Yang bcbb7033ac drm: bridge: analogix/dp: fix some obvious code style
Fix some obvious alignment problems, like alignment and line
over 80 characters problems, make this easy to be maintained
later.

Acked-by: Jingoo Han <jingoohan1@gmail.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Tested-by: Caesar Wang <wxt@rock-chips.com>
Tested-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Yakir Yang <ykk@rock-chips.com>
2016-04-05 10:13:01 +08:00
Heiko Stuebner 59c0ef315d drm/exynos: dp: rename implementation specific driver part
The core functionality now resides in the generic bridge part so the
exynos-specific implementation details can get a more suitable nameing.

Tested-by: Caesar Wang <wxt@rock-chips.com>
Tested-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Yakir Yang <ykk@rock-chips.com>
2016-04-05 10:12:59 +08:00