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path: root/drivers/gpu/drm/bridge/sil-sii8620.c
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2017-10-11drm/bridge/sii8620: add remote control supportMaciej Purski1-5/+91
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
2017-08-24drm/bridge/sii8620: Fix memory corruptionMaciej Purski1-2/+2
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
2017-02-23drm/bridge/sii8620: add missing error handling in probeAndrzej Hajda1-0/+4
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
2017-02-02drm/bridge/sii8620: enable interlace modesAndrzej Hajda1-3/+0
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
2017-02-02drm/bridge/sii8620: enable MHL3 mode if possibleAndrzej Hajda1-11/+12
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
2017-02-02drm/bridge/sii8620: add HSIC initialization codeAndrzej Hajda1-0/+38
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
2017-02-02drm/bridge/sii8620: improve gen2 write burst IRQ routineAndrzej Hajda1-1/+20
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
2017-02-02drm/bridge/sii8620: send EMSC features on requestAndrzej Hajda1-4/+23
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
2017-02-02drm/bridge/sii8620: rewrite hdmi start sequenceAndrzej Hajda1-29/+251
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
2017-02-02drm/bridge/sii8620: fix disconnect sequenceAndrzej Hajda1-1/+3
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
2017-02-02drm/bridge/sii8620: split EDID read and write codeAndrzej Hajda1-4/+27
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
2017-02-02drm/bridge/sii8620: add delay during cbus resetAndrzej Hajda1-5/+4
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
2017-02-02drm/bridge/sii8620: do not stop MHL output when TMDS input is stoppedAndrzej Hajda1-13/+0
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
2017-02-02drm/bridge/sii8620: set gen2 write burst before sending MSC commandAndrzej Hajda1-38/+50
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
2017-02-02drm/bridge/sii8620: abstract out sink detection codeAndrzej Hajda1-15/+20
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
2017-02-02drm/bridge/sii8620: fix initialization sequence for MHL2 receiversAndrzej Hajda1-2/+1
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
2017-02-02drm/bridge/sii8620: fix MSC message removalAndrzej Hajda1-1/+1
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
2017-02-02drm/bridge/sii8620: remove spare CBUS bring-up sequenceAndrzej Hajda1-4/+0
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
2017-02-02drm/bridge/sii8620: fix peer device capabilities read codeAndrzej Hajda1-1/+11
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
2017-02-02drm/bridge/sii8620: respond to feature requestsAndrzej Hajda1-0/+4
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
2017-02-02drm/bridge/sii8620: add support for burst eMSC transmissionsAndrzej Hajda1-1/+193
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
2017-02-02drm/bridge/sii8620: initial support for eCBUS-S modeAndrzej Hajda1-2/+102
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
2017-02-02drm/bridge/sii8620: add continuations to messagesAndrzej Hajda1-0/+20
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
2017-02-02drm/bridge/sii8620: add reading device capability registersAndrzej Hajda1-0/+35
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
2017-02-02drm/bridge/sii8620: add MHL3 mode check helperAndrzej Hajda1-2/+7
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
2017-02-02drm/bridge/sii8620: simplify MHL3 mode settingAndrzej Hajda1-6/+2
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
2016-10-27drm/bridge: fix platform_no_drv_owner.cocci warningskbuild test robot1-1/+0
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
2016-10-27drm/bridge: fix semicolon.cocci warningskbuild test robot1-1/+1
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
2016-10-26drm/bridge: add Silicon Image SiI8620 driverAndrzej Hajda1-0/+1565
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
generated by cgit v1.2.3 (git 2.39.0) at 2025-09-29 03:21:45 +0300