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 an

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

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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 mo

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

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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>

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

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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

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

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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>
S

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

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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.

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

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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

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

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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

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

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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 (C

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

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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,

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

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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-of

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

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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: A

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

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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

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

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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 ar

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

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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/

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

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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 pipe

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

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