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44 Commits

Author SHA1 Message Date
Maciej Purski
44f9a4b0dc drm/bridge/sii8620: Fix link mode selection 
Current link mode values do not allow to enable packed pixel modes.

Select packed pixel clock mode, if needed, every time the link mode
register gets updated.

Signed-off-by: Maciej Purski <m.purski@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1530204243-6370-4-git-send-email-m.purski@samsung.com
 2018-07-04 16:27:51 +02:00
Maciej Purski
fdddc65ab3 drm/bridge/sii8620: Fix display of packed pixel modes 
Current implementation does not guarantee packed pixel modes working
with every dongle. There are some dongles, which require selecting
the output mode explicitly.

Write proper values to registers in packed_pixel mode, based on how it
is done in vendor's code. Select output color space: RGB
(no packed pixel) or YCBCR422 (packed pixel).

This reverts commit e8b92efa62
("drm/bridge/sii8620: fix display of packed pixel modes in MHL2").

Signed-off-by: Maciej Purski <m.purski@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1530204243-6370-3-git-send-email-m.purski@samsung.com
 2018-07-04 16:27:50 +02:00
Maciej Purski
f0139752f7 drm/bridge/sii8620: Send AVI infoframe in all MHL versions 
Currently AVI infoframe is sent only in MHL3. However, some MHL2 dongles
need AVI infoframe to work correctly in either packed pixel mode or
non-packed pixel mode.

Send AVI infoframe in set_infoframes() in every case. Create an
infoframe using drm_hdmi_infoframe_from_display_mode() instead of
manually filling each infoframe structure's field.

Signed-off-by: Maciej Purski <m.purski@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1530204243-6370-2-git-send-email-m.purski@samsung.com
 2018-07-04 16:27:49 +02:00
Maciej Purski
e8b92efa62 drm/bridge/sii8620: fix display of packed pixel modes in MHL2 
Currently packed pixel modes in MHL2 can't be displayed. The device
automatically recognizes output format, so setting format other than
RGB causes failure. Fix it by writing proper values to registers.

Tested on MHL1 and MHL2 using various vendors' dongles both in
DVI and HDMI mode.

Signed-off-by: Maciej Purski <m.purski@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1516706239-9104-1-git-send-email-m.purski@samsung.com
 2018-06-21 10:16:24 +02:00
Maciej Purski
c7d6d511eb drm/bridge/sii8620: fix HDMI cable connection to dongle 
MHL bridge is usually connected to TV via MHL dongle. Currently plugging
HDMI cable to dongle is handled improperly.

Fix it by splitting connecting of a dongle and a HDMI cable. The driver
should now handle unplugging a sink from a dongle and plugging a
different sink with new edid.

Tested on MHL1, MHL2 and MHL3 using various vendors' dongles both in
DVI and HDMI mode.

Signed-off-by: Maciej Purski <m.purski@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1516705996-8928-1-git-send-email-m.purski@samsung.com
 2018-06-13 16:26:57 +02:00
Maciej Purski
95e8522588 drm/bridge/sii8620: remove HSIC initialization 
HSIC initialization was taken from the vendor code. HSIC in MHL circuit
is not connected, so it is not possible to test it. Tests prove that
without HSIC the device works well. Therefore it can be removed.

Signed-off-by: Maciej Purski <m.purski@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1511968368-30884-1-git-send-email-m.purski@samsung.com
 2018-06-13 16:26:57 +02:00
Maciej Purski
bbc05e172f drm/bridge/sii8620: start MHL transmission after HDMI signal detection 
The vendor code waits for infoframe to detect video mode set by source.
We do not need to follow this pattern, because video mode information is
provided by drm core. As a result most of the infoframe handling
code can be removed.

Start transmission immediately after detecting stream on HDMI lines
in irq_scdt() function without waiting for infoframe interrupt.

Signed-off-by: Maciej Purski <m.purski@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1511956130-24482-1-git-send-email-m.purski@samsung.com
 2018-06-13 16:26:57 +02:00
Maciej Purski
9378cecb1c drm/bridge/sii8620: fix potential buffer overflow 
Buffer overflow error should not occur, as mode_fixup() callback
filters pixel clock value and it should never exceed 600000. However,
current implementation is not obviously safe and relies on
implementation of mode_fixup().

Make 'i' variable never reach unsafe value in order to avoid buffer
overflow error.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: bf1722ca ("drm/bridge/sii8620: rewrite hdmi start sequence")
Signed-off-by: Maciej Purski <m.purski@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1511341718-6974-1-git-send-email-m.purski@samsung.com
 2018-06-13 16:26:57 +02:00
Maciej Purski
ecba7cfa3a drm/bridge/sii8620: fix display modes validation 
Current implementation of mode_valid() and mode_fixup() callbacks
handle packed pixel modes improperly.

Fix it by using proper maximum clock values from the documentation.

Signed-off-by: Maciej Purski <m.purski@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1517568865-25219-1-git-send-email-m.purski@samsung.com
 2018-06-13 16:26:57 +02:00
Andrzej Hajda
8e627a1b1c drm/bridge/sii8620: fix loops in EDID fetch logic 
Function should constantly check if cable is connected and finish
in finite time.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Maciej Purski <m.purski@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180115173357.31067-4-a.hajda@samsung.com
 2018-06-13 16:27:32 +02:00
Andrzej Hajda
8efaac07d7 drm/bridge/sii8620: simplify hardware reset procedure 
There is no need to flip reset pin twice. Also delays can be changed to
values present in vendor's code.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Maciej Purski <m.purski@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180608060457.18357-1-a.hajda@samsung.com
 2018-06-13 16:26:57 +02:00
Maciej Purski
6888384421 drm/bridge/sii8620: use micro-USB cable detection logic to detect MHL 
Currently MHL chip must be turned on permanently to detect MHL cable. It
duplicates micro-USB controller's (MUIC) functionality and consumes
unnecessary power. Lets use extcon attached to MUIC to enable MHL chip
only if it detects MHL cable.

Signed-off-by: Maciej Purski <m.purski@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Acked-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
 2018-03-12 10:18:26 +09:00
Ville Syrjälä
f1781e9bb2 drm/edid: Allow HDMI infoframe without VIC or S3D 
Appedix F of HDMI 2.0 says that some HDMI sink may fail to switch from
3D to 2D mode in a timely fashion if the source simply stops sending the
HDMI infoframe. The suggested workaround is to keep sending the
infoframe even when strictly not necessary (ie. no VIC and no S3D).
HDMI 1.4 does allow for this behaviour, stating that sending the
infoframe is optional in this case.

The infoframe was first specified in HDMI 1.4, so in theory sinks
predating that may not appreciate us sending an uknown infoframe
their way. To avoid regressions let's try to determine if the sink
supports the infoframe or not. Unfortunately there's no direct way
to do that, so instead we'll just check if we managed to parse any
HDMI 1.4 4k or stereo modes from the EDID, and if so we assume the
sink will accept the infoframe. Also if the EDID contains the HDMI
2.0 HDMI Forum VSDB we can assume the sink is prepared to receive
the infoframe.

v2: Fix getting has_hdmi_infoframe from display_info
    Always fail constructing the infoframe if the display
    possibly can't handle it

Cc: Shashank Sharma <shashank.sharma@intel.com>
Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Shashank Sharma <shashank.sharma@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171113170427.4150-3-ville.syrjala@linux.intel.com
 2017-11-22 19:24:34 +02:00
Maciej Purski
5c632e22c2 drm/bridge/sii8620: add DVI mode support 
If the sink device is in HDMI mode, enable infoframe interrupt in scdt
irq handle function else call start_video function immediately, because
in DVI mode, there is no infoframe interrupt provided.

Rename start_hdmi function to start_video and get rid of the old
start_video function. In start_video, if the sink is DVI and mode is
MHL1 or MHl2, write appropriate values to registers else the path
should remain the same as in HDMI mode.

Signed-off-by: Maciej Purski <m.purski@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1510224822-7732-1-git-send-email-m.purski@samsung.com
 2017-11-16 13:48:21 +01:00
Marek Szyprowski
e7c2e4d368 drm/bridge/sii8620: filter unsupported modes 
The maximum pixel clock depends on the version of the connected MHL
adapter. Add mode_valid callback to filter out modes with too high pixel
clock to avoid failure in mode_fixup later.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171109102831.19844-1-m.szyprowski@samsung.com
 2017-11-16 13:47:35 +01:00
Maciej Purski
e25f1f7c94 drm/bridge/sii8620: add remote control support 
MHL specification defines Remote Control Protocol(RCP) to
send input events between MHL devices.
The driver now recognizes RCP messages and reacts to them
by reporting key events to input subsystem, allowing
a user to control a device using TV remote control.

Signed-off-by: Maciej Purski <m.purski@samsung.com>
Acked-by: Sean Young <sean@mess.org>
Acked-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1503565087-19730-1-git-send-email-m.purski@samsung.com
 2017-10-11 13:14:25 +02:00
Maciej Purski
79964dbaf6 drm/bridge/sii8620: Fix memory corruption 
Function sii8620_mt_read_devcap_reg_recv() used to read array index
from a wrong msg register, which caused writing out of array
bounds. It led to writing on other fields of struct sii8620.

Signed-off-by: Maciej Purski <m.purski@samsung.com>
Fixes: e9c6da270 ("drm/bridge/sii8620: add reading device capability
       registers")
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1503311571-25819-1-git-send-email-m.purski@samsung.com
 2017-08-24 19:06:32 +02:00
Andrzej Hajda
e0ba12ea5e drm/bridge/sii8620: add missing error handling in probe 
devm_request_threaded_irq result should be checked for errors.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1487764057-23362-1-git-send-email-a.hajda@samsung.com
 2017-02-23 11:06:11 -05:00
Andrzej Hajda
45d0ea86d2 drm/bridge/sii8620: enable interlace modes 
Bug in DECON(CRTC) driver prevented interlace modes from proper work.
Since DECON is fixed interlace modes can be enabled in MHL.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-26-git-send-email-a.hajda@samsung.com
 2017-02-02 15:15:31 +05:30
Andrzej Hajda
9fc6ade810 drm/bridge/sii8620: enable MHL3 mode if possible 
Since all sub-protocols of MHL3 are already supported MHL3 mode can be
enabled. With this patch it is possible to use packed pixel modes and
clocks up to 300MHz - 1920x1080@60Hz and 4K modes.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-25-git-send-email-a.hajda@samsung.com
 2017-02-02 15:15:31 +05:30
Andrzej Hajda
a21e658bfb drm/bridge/sii8620: add HSIC initialization code 
In case of MHL3 HSIC should be initialized.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-24-git-send-email-a.hajda@samsung.com
 2017-02-02 15:15:30 +05:30
Andrzej Hajda
581a923730 drm/bridge/sii8620: improve gen2 write burst IRQ routine 
The patch adds code to report back feature complete IRQ, and code
to read and drop burst writes from peer.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-23-git-send-email-a.hajda@samsung.com
 2017-02-02 15:15:30 +05:30
Andrzej Hajda
269ed8eec9 drm/bridge/sii8620: send EMSC features on request 
Device should report to the peer which features are really supported.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-22-git-send-email-a.hajda@samsung.com
 2017-02-02 15:15:29 +05:30
Andrzej Hajda
bf1722cab5 drm/bridge/sii8620: rewrite hdmi start sequence 
MHL3 protocol requires registry adjustments depending on chosen video mode.
Necessary information is gathered in mode_fixup callback. In case of HDMI
video modes driver should also send special AVI and MHL3 infoframes.
The patch introduces generic helpers for handling MHL3 infoframes, in
case of appearance of other users of MHL3 infoframes these function can
be moved to common library.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-21-git-send-email-a.hajda@samsung.com
 2017-02-02 15:15:29 +05:30
Andrzej Hajda
003f9929f8 drm/bridge/sii8620: fix disconnect sequence 
The patch allows to avoid rare cases when discovery fails.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-19-git-send-email-a.hajda@samsung.com
 2017-02-02 15:15:28 +05:30
Andrzej Hajda
263b5c93a2 drm/bridge/sii8620: split EDID read and write code 
MHL3 requires that after reading EDID from the sink source should ask
peer for features. To make both protocols happy the patch splits the code
accordingly.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-18-git-send-email-a.hajda@samsung.com
 2017-02-02 15:15:28 +05:30
Andrzej Hajda
4dc3c07127 drm/bridge/sii8620: add delay during cbus reset 
Without delay CBUS sometimes was not reset properly.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-17-git-send-email-a.hajda@samsung.com
 2017-02-02 15:15:27 +05:30
Andrzej Hajda
6bed9bc2ae drm/bridge/sii8620: do not stop MHL output when TMDS input is stopped 
Stopping output causes full re-detection of the sink and slows down the
process.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-16-git-send-email-a.hajda@samsung.com
 2017-02-02 15:15:27 +05:30
Andrzej Hajda
26a4cef815 drm/bridge/sii8620: set gen2 write burst before sending MSC command 
Write burst should be enabled for MHL_INT_RC_FEAT_REQ and disabled for
other commands. The patch moves functions up and adds delay setting
for MHL3 burst mode.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-15-git-send-email-a.hajda@samsung.com
 2017-02-02 15:15:26 +05:30
Andrzej Hajda
9a466cd1dd drm/bridge/sii8620: abstract out sink detection code 
MHL1 and MHL3 have different initialization paths. To make both protocols
happy sink detection is put into continuation after link mode enablement.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-14-git-send-email-a.hajda@samsung.com
 2017-02-02 15:15:26 +05:30
Andrzej Hajda
ef822a0745 drm/bridge/sii8620: fix initialization sequence for MHL2 receivers 
MHL2 receiver require disabling transmitter on initialization.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-13-git-send-email-a.hajda@samsung.com
 2017-02-02 15:15:26 +05:30
Andrzej Hajda
d6d59c5a57 drm/bridge/sii8620: fix MSC message removal 
Messages queue can be cleaned up by message callbacks, to avoid repeated
removal of current message it should be removed from the queue before
calling these callbacks.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-12-git-send-email-a.hajda@samsung.com
 2017-02-02 15:15:25 +05:30
Andrzej Hajda
73a5d25d50 drm/bridge/sii8620: remove spare CBUS bring-up sequence 
In case of MHL3 CBUS is bring-up already in sii8620_got_ecbus_speed.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-11-git-send-email-a.hajda@samsung.com
 2017-02-02 15:15:25 +05:30
Andrzej Hajda
e3a654872d drm/bridge/sii8620: fix peer device capabilities read code 
Peer capabilities should be read differently depending on protocol version.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-10-git-send-email-a.hajda@samsung.com
 2017-02-02 15:15:24 +05:30
Andrzej Hajda
4a36888585 drm/bridge/sii8620: respond to feature requests 
MHL3 protocol requires device to respond to feature request from peer.
This minimal answer fulfills the requirement and allows to continue
negotiation.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-9-git-send-email-a.hajda@samsung.com
 2017-02-02 15:15:24 +05:30
Andrzej Hajda
e19e9c692f drm/bridge/sii8620: add support for burst eMSC transmissions 
Burst transmissions are used in MHL3 mode negotiation.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-8-git-send-email-a.hajda@samsung.com
 2017-02-02 15:15:24 +05:30
Andrzej Hajda
2c8fb853c0 drm/bridge/sii8620: initial support for eCBUS-S mode 
The Single-ended eCBUS Mode (eCBUS-S) mode provides 60 Mb/s full-duplex
bidirectional traffic for three channels:
 - CBUS data (CBUS1 channel),
 - High-bandwidth MHL data (eMSC channel),
 - tunneling data (T-CBUS channel).
It is required to fully support MHL3 dongles.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-6-git-send-email-a.hajda@samsung.com
 2017-02-02 15:15:23 +05:30
Andrzej Hajda
0c2d18756b drm/bridge/sii8620: add continuations to messages 
Due to asynchronous nature of MHL flow of execution is dispersed.
Logical continuation of some actions happens after response of peer,
i.e in interrupt handler. To simplify coding continuation mechanism
has been added - it is now possible to provide continuation callback,
which will be called after peer responds to given action.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-5-git-send-email-a.hajda@samsung.com
 2017-02-02 15:15:22 +05:30
Andrzej Hajda
e9c6da270a drm/bridge/sii8620: add reading device capability registers 
This functionality is necessary to implement MHL3 modes.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-4-git-send-email-a.hajda@samsung.com
 2017-02-02 15:15:22 +05:30
Andrzej Hajda
bb4954c77c drm/bridge/sii8620: add MHL3 mode check helper 
MHL3 modes differs significantly from MHL1 mode, this helper will be used
frequently to clearly distinguish them.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-3-git-send-email-a.hajda@samsung.com
 2017-02-02 15:15:22 +05:30
Andrzej Hajda
dd12312906 drm/bridge/sii8620: simplify MHL3 mode setting 
It is not necessary to set REG_COC_CTL0, REG_MHL_COC_CTL1 registers.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-2-git-send-email-a.hajda@samsung.com
 2017-02-02 15:15:21 +05:30
kbuild test robot
56df51d003 drm/bridge: fix platform_no_drv_owner.cocci warnings 
drivers/gpu/drm/bridge/sil-sii8620.c:1556:3-8: No need to set .owner here. The core will do it.

 Remove .owner field if calls are used which set it automatically

Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci

CC: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20161026165836.GA98766@lkp-sb04.lkp.intel.com
 2016-10-27 11:35:23 +05:30
kbuild test robot
3a81e96094 drm/bridge: fix semicolon.cocci warnings 
drivers/gpu/drm/bridge/sil-sii8620.c:988:2-3: Unneeded semicolon

 Remove unneeded semicolon.

Generated by: scripts/coccinelle/misc/semicolon.cocci

CC: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20161026165836.GA98907@lkp-sb04.lkp.intel.com
 2016-10-27 11:34:21 +05:30
Andrzej Hajda
ce6e153f41 drm/bridge: add Silicon Image SiI8620 driver 
SiI8620 transmitter converts eTMDS/HDMI signal to MHL 3.0.
It is controlled via I2C bus. Its interaction with other
devices in video pipeline is performed mainly on HW level.
The only interaction it does on device driver level is
filtering-out unsupported video modes, it exposes drm_bridge
interface to perform this operation.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1476085157-5266-1-git-send-email-a.hajda@samsung.com
 2016-10-26 11:19:12 +05:30