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path: root/drivers/gpu/drm/exynos/exynos_hdmi.c
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2016-07-15gpu: drm: exynos_hdmi: add missing of_node_put after calling of_parse_phandlePeter Chen1-0/+2
of_node_put needs to be called when the device node which is got from of_parse_phandle has finished using. Cc: Joonyoung Shim <jy0922.shim@samsung.com> Cc: Seung-Woo Kim <sw0312.kim@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Peter Chen <peter.chen@nxp.com> Signed-off-by: Sean Paul <seanpaul@chromium.org>
2016-06-10drm: exynos: Rely on the default ->best_encoder() behaviorBoris Brezillon1-8/+0
We have 1:1 relationship between connectors and encoders and the driver is relying on the atomic helpers: we can drop the custom ->best_encoder() implementations and let the core call drm_atomic_helper_best_encoder() for us. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1465300095-16971-5-git-send-email-boris.brezillon@free-electrons.com
2016-05-17drm/exynos/hdmi: add a missing tabDan Carpenter1-1/+1
Smatch warns that the if statement isn't indented. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20160512195457.GA19095@mwanda
2016-05-10drm/exynos/hdmi: Don't print error on deferral due to regulatorsJavier Martinez Canillas1-2/+4
The regulators may not be available just because their driver's probe function was just not executed and so the regulators not registered. So, in this case the Exynos HDMI driver should not print logs since a -EPROBE_DEFER is not really an error and that will just pollute the kernel log and confuse users. This patch prevents the following misleading messages to be printed: [ 1.443638] [drm:hdmi_probe] *ERROR* failed to get regulators [ 1.449326] [drm:hdmi_probe] *ERROR* hdmi_resources_init failed Reported-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-05-10drm/exynos/hdmi: expose HDMI-PHY clock as pipeline clockAndrzej Hajda1-19/+48
HDMI-PHY clock should be accessible from other components in the pipeline. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-30drm/exynos: hdmi: use generic of_device_get_match_data helperMarek Szyprowski1-6/+1
Simplify code by replacing custom code by generic helper. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-29drm/exynos/hdmi: remove registry dumpAndrzej Hajda1-263/+0
HDMI registry dump unnecessary spoils console and is not very helpful. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-29drm/exynos/hdmi: add core reset codeAndrzej Hajda1-0/+4
To ensure HDMI-PHY reprogramming will not affect HDMI the latter should be reset. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-29drm/exynos/hdmi: add PHY power off signal handlingAndrzej Hajda1-0/+4
HDMI-PHY power off bit defaults to 0 in older HDMI versions. In case of Exynos5433 it defaults to 1. To make code consistent across all versions this bit is always unset/set in power on/off sequences. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-29drm/exynos/hdmi: fix PHY configuration sequenceAndrzej Hajda1-11/+11
Proper PHY configuration should be as follow: 1. set HDMI clock parents to OSCCLK. 2. reconfigure PHY. 3. set HDMI clock parents to PHY. 4. wait for PLL stabilization. The patch fixes it and consolidates the code. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-29drm/exynos/hdmi: add Exynos5433 supportAndrzej Hajda1-0/+142
HDMI on Exynos5433 differs from previous versions: - different HDMI-PHY settings, - different clocks, - SYSREG registers for enabling reference clock, - MODE_SET register in HDMI-PHY. It is distinguished from other variants by different compatible string. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-29drm/exynos/hdmi: stop programming registers with default valuesAndrzej Hajda1-19/+0
There is no point in rewriting default values, as the IP is reset anyway. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-29drm/exynos/hdmi: code cleanupAndrzej Hajda1-53/+26
The patch performs following clean-ups: - remove unnecessary white spaces, - remove obvious comments, - fix tabulations, - remove NULL initializators, - re-order driver data. The patch does not change driver's behavior. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-29drm/exynos/hdmi: use array specifier for HDMI-PHY configurationsAndrzej Hajda1-16/+18
HDMI-PHY configurations are stored as array pointer and count pair, we can re-use existing helpers to simplify their initialization. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-29drm/exynos/hdmi: constify global variablesAndrzej Hajda1-5/+5
These variables should not be modified. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-04-29drm/exynos/hdmi: clock code re-factoringAndrzej Hajda1-54/+140
With incoming support for newer SoCs different set of clocks will be required, depending on IP version. The patch prepares the driver for it. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2016-03-01drm/exynos/hdmi: remove unused variableAndrzej Hajda1-2/+0
The variable is unused for long time. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-12-15drm/exynos: Constify function pointer structsVille Syrjälä1-4/+4
Moves a bunch of junk to .rodata from .data. drivers/gpu/drm/exynos/exynosdrm.ko: -.text 125792 +.text 125788 -.rodata 10972 +.rodata 11748 -.data 6720 +.data 5944 Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Link: http://patchwork.freedesktop.org/patch/msgid/1450178476-26284-19-git-send-email-boris.brezillon@free-electrons.com Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-12-15Merge branch 'exynos-drm-next' of ↵Dave Airlie1-9/+40
git://git.kernel.org:/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next - Support runtime pm . In case of most ARM SoC, each IP has each power domain which should be controlled by each IP driver using runtime pm interface. So this patch series makes each IP driver to control its own power domain when drm dpms is requested. - Support of_graph based dt binding for DP panel. . This patch series adds of_graph based dt binding for DP panel. And also it keeps backward compatibility. This includes dt binding patch so I got Acked-by from Krzysztof Kozlowski who is a Exynos SoC maintainer and from Rob Herring who is a device tree maintainer. - Cleanup for Exynos DRM IPP enhancement. . This patch series is a first step for enhancing existing IPP framework which will integrate existing IPP functions with DRM KMS part so that these can be transparent to userspace. For other portion of the patch series, we will have more times for the review.] * 'exynos-drm-next' of git://git.kernel.org:/pub/scm/linux/kernel/git/daeinki/drm-exynos: (29 commits) drm/exynos: gem: remove old unused prototypes drm/exynos: fimd: fix dma burst size setting for small plane size drm/exynos: fix clipping when scaling is enabled drm/exynos: mixer: use ratio precalculated in exynos_state drm/exynos: add generic check for plane state drm/exynos: introduce exynos_drm_plane_config structure drm/exynos: mixer: enable video overlay plane only when VP is available drm/exynos: mixer: use crtc->state->adjusted_mode instead of crtc->mode drm/exynos: introduce exynos_drm_plane_state structure drm/exynos: move dma_addr attribute from exynos plane to exynos fb drm/exynos: exynos7-decon: remove excessive check drm/exynos: rotator: convert to common clock framework drm/exynos: gsc: add device tree support and remove usage of static mappings drm/exynos: gsc: fix wrong pm_runtime state drm/exynos: gsc: prepare and unprepare gsc clock ARM: dts: Use OF graph for DP to panel connection in exynos5800-peach-pi dt-bindings: exynos-dp: update ports node binding for panel drm/exynos: dp: add of_graph dt binding support for panel drm/exynos: decon: remove unused variables drm/exynos: dsi: modify a error type when getting a node failed ...
2015-12-13drm/exynos: add pm_runtime to HDMIGustavo Padovan1-9/+40
Let pm_runtime handle the enabling/disabling of the device with proper refcnt instead of rely on specific flags to track the enabled state. Changelog v3: - revive powered flag to keep current dpms mode Changelog v2: - Mofidy CONFIG_PM_SLEEP -> CONFIG_PM Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-12-11drm: Pass 'name' to drm_encoder_init()Ville Syrjälä1-1/+1
Done with coccinelle for the most part. However, it thinks '...' is part of the semantic patch, so I put an 'int DOTDOTDOT' placeholder in its place and got rid of it with sed afterwards. @@ identifier dev, encoder, funcs; @@ int drm_encoder_init(struct drm_device *dev, struct drm_encoder *encoder, const struct drm_encoder_funcs *funcs, int encoder_type + ,const char *name, int DOTDOTDOT ) { ... } @@ identifier dev, encoder, funcs; @@ int drm_encoder_init(struct drm_device *dev, struct drm_encoder *encoder, const struct drm_encoder_funcs *funcs, int encoder_type + ,const char *name, int DOTDOTDOT ); @@ expression E1, E2, E3, E4; @@ drm_encoder_init(E1, E2, E3, E4 + ,NULL ) v2: Add ', or NULL...' to @name kernel doc (Jani) Annotate the function with __printf() attribute (Jani) Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1449670818-2966-1-git-send-email-ville.syrjala@linux.intel.com
2015-11-03drm/exynos/mixer: replace direct cross-driver call with drm mode validationAndrzej Hajda1-5/+0
HDMI driver called directly function from MIXER driver to invalidate modes not supported by MIXER. The patch replaces the hack with proper .atomic_check callback. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-10-26drm/exynos/hdmi: remove unused fieldAndrzej Hajda1-1/+0
The patch removes unused hdmi_context field. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-10-26drm/exynos/hdmi: improve HDMI/ACR related codeAndrzej Hajda1-58/+13
Simple formula can be used to calculate CTS and N coefficients. Additionaly ACR registers have different offsets for different versions of IP. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-10-26drm/exynos/hdmi: convert container_of macro to inline functionAndrzej Hajda1-6/+9
Inline function is safer than macro, also the name has been changed to be consistent with other inline function encoder_to_hdmi. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-10-26drm/exynos/hdmi: remove deprecated hdmi_resources structureAndrzej Hajda1-59/+46
hdmi_resources structure was filled by old platform data code and is not necessary anymore. The patch removes it at groups together resource related fields in hdmi_context. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-10-26drm/exynos/hdmi: convert to gpiod APIAndrzej Hajda1-23/+14
The patch converts API to gpiod and moves initialization code to hdmi_resources_init. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-10-26drm/exynos/hdmi: simplify clock re-parentingAndrzej Hajda1-4/+0
Driver tries to disable sclk_hdmi during re-parenting, to avoid possible glitches. It is ineffective as the clock is used also by other devices (mixer). Anyway driver works without disabling sclk_hdmi. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-10-26drm/exynos/hdmi: use constant size array for regulatorsAndrzej Hajda1-16/+9
Driver always uses the same number of regulators, so there is no point in dynamic allocation. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-10-26drm/exynos/hdmi: use optional regulator_get for hdmi-enAndrzej Hajda1-13/+11
hdmi-en is an optional regulator so it should be better handled by devm_regulator_get_optional call. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-10-26drm/exynos/hdmi: fix removal orderAndrzej Hajda1-3/+5
DRM device should be destroyed before releasing resources. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-10-26drm/exynos/hdmi: replace all writeb with writelAndrzej Hajda1-3/+3
Registers are 32-bit, even if only lower 8-bits are used. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-10-26drm/exynos/hdmi: simplify HDMI-PHY power sequenceAndrzej Hajda1-85/+8
Currently driver tries to set specific HDMI-PHY registers in three situations: - before reset, - before power off, - after applying HDMI-PHY configuration. First two cases seems to be unnecessary - register contents will be lost anyway. The third case can be merged with HDMI-PHY configuration by fixing the last byte of configuration data. The patch has been tested with following platforms: - exynos4210-universal_c210, - exynos4412-odroidu3, - exynos5422-odroidxu3. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-10-26drm/exynos/hdmi: move PLL stabilization check code to separate functionAndrzej Hajda1-42/+26
The patch moves PLL stabilization check to separate function, adjust timeout parameters and de-duplicates code common for both HW variants. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-10-26drm/exynos/hdmi: use mappings for registers with IP dependent addressAndrzej Hajda1-20/+36
Some registers resides at different offsets depending on device version. This patch adds infrastructure for mapping such registers to proper address based on hdmi_type. It adds also mappings to some registers. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-10-26drm/exynos/hdmi: remove support for deprecated compatibleAndrzej Hajda1-10/+0
This compatible was marked as deprecated in Jun 2013 and it is not used since then. Additionally its driver data points to wrong pll settings, so it cannot work anyway. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-08-16drm/exynos: remove struct exynos_drm_encoder layerGustavo Padovan1-33/+52
struct exynos_drm_encoder was justing wrapping struct drm_encoder, it had only a drm_encoder member and the internal exynos_drm_encoders ops that was directly mapped to the drm_encoder helper funcs. So now exynos DRM uses struct drm_encoder directly, this removes completely the struct exynos_drm_encoder. v2: add empty .mode_fixup() and .mode_set() to DSI and DPI to avoid null pointer. Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-08-16drm/exynos: remove exynos_drm_create_enc_conn()Gustavo Padovan1-3/+18
This functions was just hiding the encoder and connector creation in a way that was less clean than if we get rid of it. For example, exynos_encoder ops had .create_connector() defined only because we were handing off the encoder and connector creation to exynos_drm_create_enc_conn(). Without this function we can directly call the create_connector function internally in the code, without the need of any vtable access. It also does some refactoring in the code like creating a bind function for dpi devices. Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-08-16drm/exynos: remove extra call to hdmi_commit()Gustavo Padovan1-12/+1
hdmi_commit() was getting called twice by exynos encoder core, once inside the .enable() call and another time by .commit() itself. Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-08-16drm/exynos: remove struct exynos_drm_displayGustavo Padovan1-25/+23
This struct was just representing encoder information, it was a member of struct exynos_drm_encoder, so any code trying to access encoder data would have to go through the encoder struct, get the display struct and then get the data it want. During this patchset we also realized that the only data exynos_drm_encoder needs to store is the drm_encoder parent and the exynos_drm_encoder_ops. Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-08-16drm/exynos: split display's .dpms() into .enable() and .disable()Gustavo Padovan1-42/+23
The DRM Core doesn't have a dpms() operation anymore, everything now is enable() or disable(). Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-08-16drm/exynos/hdmi: remove hdmi_v14_conf structAndrzej Hajda1-318/+109
The patch removes intermediate struct for HDMIv14 register configuration, instead registry values are calculated on the fly. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-08-16drm/exynos/hdmi: remove hdmi_v13_conf structAndrzej Hajda1-179/+101
The patch removes intermediate struct for HDMIv13 register configuration, instead registry values are calculated on the fly. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-08-16drm/exynos/hdmi: remove redundant configuration fieldsAndrzej Hajda1-44/+24
The patch removes redundant fields from hdmi_conf_regs. Their values can be calculated from current_mode. This patch is the first step to remove whole hdmi_conf_regs structure. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-08-16drm/exynos/hdmi: add driver data pointer to private contextAndrzej Hajda1-29/+20
The patch replaces duplicated driver data fields in private context with pointer to driver data. It also simplifies driver data lookup code. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-08-16drm/exynos/hdmi: remove private lock codeAndrzej Hajda1-24/+3
Most of the code is called by drm core framework, so it is already synchronized. The only async function is irq routine which only calls drm framework so it does not need to be synchronized. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-08-16drm/exynos/hdmi: Simplify HPD gpio handlingAndrzej Hajda1-10/+3
GPIO is tested only in hdmi_detect, so there is no reason to set it in other places and to preserve its value in context. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-08-16drm/exynos/hdmi: remove old platform data codeAndrzej Hajda1-31/+5
s5p_hdmi_platform_data were used before device tree introduction. As HDMI driver is DT only we can drop this struct completely. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-08-16drm/exynos/hdmi: fix edid memory leakAndrzej Hajda1-1/+6
edid returned by drm_get_edid should be freed. The patch fixes it. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-06-19drm/exynos: fix broken component binding in case of multiple pipelinesAndrzej Hajda1-17/+5
In case there are multiple pipelines and deferred probe occurs, only components of the first pipeline were bound. As a result only one pipeline was available. The main cause of this issue was dynamic generation of component match table - every component driver during probe registered itself on helper list, if there was at least one pipeline present on this list component match table were created without deferred components. This patch removes this helper list, instead it creates match table from existing devices requiring exynos_drm KMS drivers. This way match table do not depend on probe/deferral order and contains all KMS components. As a side effect patch makes the code cleaner and significantly smaller. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
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