drm/msm/dp: drop dp_parser

Finally drop separate "parsing" submodule. There is no need in it
anymore. All submodules handle DT properties directly rather than
passing them via the separate structure pointer.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Tested-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/576116/
Link: https://lore.kernel.org/r/20240126-dp-power-parser-cleanup-v3-15-098d5f581dd3@linaro.org

drm/msm/dp: move link property handling to dp_panel

Instead of passing link properties through the separate struct, parse
them directly in the dp_panel.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Tested-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/576117/
Link: https://lore.kernel.org/r/20240126-dp-power-parser-cleanup-v3-13-098d5f581dd3@linaro.org

drm/msm/dp: rename is_connected with link_ready

The is_connected flag is set to true after DP mainlink successfully
finishes link training to enter into ST_MAINLINK_READY state rather
than being set after the DP dongle is connected. Rename the
is_connected flag with link_ready flag to match the state of DP
driver's state machine.

Changes in v5:
-- reworded commit text according to review comments from change #4

Changes in v4:
-- reworded commit text

Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/570063/
Link: https://lore.kernel.org/r/1701472789-25951-3-git-send-email-quic_khsieh@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dp: tie dp_display_irq_handler() with dp driver

Currently the dp_display_request_irq() is executed at
msm_dp_modeset_init() which ties irq registering to the DPU device's
life cycle, while depending on resources that are released as the DP
device is torn down. Move register DP driver irq handler to
dp_display_probe() to have dp_display_irq_handler() IRQ tied with DP
device. In addition, use platform_get_irq() to retrieve irq number
from platform device directly.

Changes in v5:
-- reworded commit text as review comments at change #4
-- tear down component if failed at dp_display_request_irq()

Changes in v4:
-- delete dp->irq check at dp_display_request_irq()

Changes in v3:
-- move calling dp_display_irq_handler() to probe

Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/570069/
Link: https://lore.kernel.org/r/1701472789-25951-2-git-send-email-quic_khsieh@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dp: cleanup debugfs handling

Currently there are two subdirs for DP debugfs files, e.g. DP-1, created
by the drm core for the connector, and the msm_dp-DP-1, created by the
DP driver itself. Merge those two, so that there are no extraneous
connector-related subdirs.

Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/563523/
Link: https://lore.kernel.org/r/20231019104419.1032329-1-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dp: move pdev from struct dp_display_private to struct msm_dp

The dp_drm needs accessing the DP's platform device. Move pdev to the
public structure.

Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/561642/
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/dp: Add basic PSR support for eDP

Add support for basic panel self refresh (PSR) feature for eDP.
Add a new interface to set PSR state in the sink from DPU.
Program the eDP controller to issue PSR enter and exit SDP to
the sink.

Signed-off-by: Sankeerth Billakanti <quic_sbillaka@quicinc.com>
Signed-off-by: Vinod Polimera <quic_vpolimer@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/524734/
Link: https://lore.kernel.org/r/1677774797-31063-10-git-send-email-quic_vpolimer@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dp: Rely on hpd_enable/disable callbacks

The DisplayPort controller's internal HPD interrupt handling is used for
cases where the HPD signal is connected to a GPIO which is pinmuxed into
the DisplayPort controller. In other configurations the HPD notification
might be delivered by the DRM framework from an associated bridge.

This difference is not appropriately represented by the "is_edp"
boolean, but is properly represented by the frameworks invocation of the
hpd_enable() and hpd_disable() callbacks. Switch the current condition
to rely on these callbacks instead.

This ensures appropriate handling of the three cases; no bridge
connected, a bridge without DRM_BRIDGE_OP_HPD and a bridge with
DRM_BRIDGE_OP_HPD.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/514414/
Link: https://lore.kernel.org/r/20221207220012.16529-9-quic_bjorande@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dp: Remove encoder pointer from struct msm_dp

We don't need to stash the encoder here. Instead we can simply pass it
around as an argument.

Cc: Kuogee Hsieh <quic_khsieh@quicinc.com>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/491187/
Link: https://lore.kernel.org/r/20220625002811.3225344-1-swboyd@chromium.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dp: Add eDP support via aux_bus

This patch adds support for generic eDP sink through aux_bus. The eDP/DP
controller driver should support aux transactions originating from the
panel-edp driver and hence should be initialized and ready.

The panel bridge supporting the panel should be ready before the bridge
connector is initialized. The generic panel probe needs the controller
resources to be enabled to support the aux transactions originating from
the panel probe.

Signed-off-by: Sankeerth Billakanti <quic_sbillaka@quicinc.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Patchwork: https://patchwork.freedesktop.org/patch/483307/
Link: https://lore.kernel.org/r/1650887072-16652-2-git-send-email-quic_sbillaka@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dp: remove max_pclk_khz field from dp_panel/dp_display

Since the last commit, the max_pclk_khz became constant, it's set to
DP_MAX_PIXEL_CLK_KHZ and never changed afterwards. Remove it completely
and use DP_MAX_PIXEL_CLK_KHZ directly.

Reviewed-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/480139/
Link: https://lore.kernel.org/r/20220330223008.649274-4-dmitry.baryshkov@linaro.org
[DB: applied a fix to follow connector->bridge conversion]
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dp: simplify dp_connector_get_modes()

Since dp_panel_get_modes() handling for dp_mode was removed,
dp_display_get_modes also doesn't change the passed dp_mode, drop the
unused dp_mode variable being allocated unused and then freed.

Reviewed-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/480137/
Link: https://lore.kernel.org/r/20220330223008.649274-3-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dp: remove extra wrappers and public functions

dp_bridge's functions are thin wrappers around the msm_dp_display_*
family. Squash dp_bridge callbacks into respective msm_dp_display
functions, removing the latter functions from public space.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Tested-by: Sankeerth Billakanti <quic_sbillaka@quicinc.com>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/473858/
Link: https://lore.kernel.org/r/20220211224006.1797846-6-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dp: enable widebus feature for display port

Widebus feature will transmit two pixel data per pixel clock to interface.
This feature now is required to be enabled to easy migrant to higher
resolution applications in future. However since some legacy chipsets
does not support this feature, this feature is enabled by setting
wide_bus_en flag to true within msm_dp_desc struct.

changes in v2:
-- remove compression related code from timing
-- remove op_info from struct msm_drm_private
-- remove unnecessary wide_bus_en variables
-- pass wide_bus_en into timing configuration by struct msm_dp

Changes in v3:
-- split patch into 3 patches
-- enable widebus feature base on chip hardware revision

Changes in v5:
-- DP_INTF_CONFIG_DATABUS_WIDEN

Changes in v6:
-- static inline bool msm_dp_wide_bus_enable() in msm_drv.h

Changes in v7:
-- add Tested-by

Changes in v9:
-- add wide_bus_en to msm_dp_desc

Changes in v10:
-- add wide_bus_en boolean to dp_catalog struc to avoid passing it as parameter

Changes in v11:
-- add const to dp_catalog_hw_revision()
-- add const to msm_dp_wide_bus_available()

Changes in v12:
-- dp_catalog_hw_revision(const struct dp_catalog *dp_catalog)
-- msm_dp_wide_bus_available(const struct msm_dp *dp_display)

Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reported-by: kernel test robot <lkp@intel.com>
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/476283/
Link: https://lore.kernel.org/r/1645824192-29670-5-git-send-email-quic_khsieh@quicinc.com
[DB: fixed the compilation]
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dp: support attaching bridges to the DP encoder

Currently DP driver will allocate panel bridge for eDP panels. This
supports only the following topology:

- eDP encoder ⇒ eDP panel (wrapped using panel-bridge)

Simplify this code to just check if there is any next bridge in the
chain (be it a panel bridge or regular bridge). Rename panel_bridge
field to next_bridge accordingly.

This allows one to use e.g. one of the following display topologies:

- eDP encoder ⇒ ptn3460 ⇒ fixed LVDS panel
- eDP encoder ⇒ ptn3460 ⇒ LVDS connector with EDID lines for panel autodetect
- eDP encoder ⇒ ptn3460 ⇒ THC63LVD1024 ⇒ DPI panel.
- eDP encoder ⇒ LT8912 ⇒ DSI panel

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Tested-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20220211224006.1797846-3-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

drm/msm/dp: employ bridge mechanism for display enable and disable

Currently the msm_dp_*** functions implement the same sequence which would
happen when drm_bridge is used. hence get rid of this intermediate layer
and align with the drm_bridge usage to avoid customized implementation.

Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>

Changes in v2:
-- revise commit text
-- rename dp_bridge to msm_dp_bridge
-- delete empty functions

Changes in v3:
-- replace kzalloc() with devm_kzalloc()
-- replace __dp_display_enable() with dp_display_enable()
-- replace __dp_display_disable() with dp_display_disable()

Changes in v4:
-- msm_dp_bridge_init() called from msm_dp_modeset_init() same as dsi

Changes in v5:
-- delete attach, mode_fixup and pre_enable from dp_bridge_ops

Changes in v6:
-- rebase on msm-next-plus-fixes branch

Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Link: https://lore.kernel.org/r/1638918933-2544-1-git-send-email-quic_khsieh@quicinc.com
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/dp: Allow attaching a drm_panel

eDP panels might need some power sequencing and backlight management,
so make it possible to associate a drm_panel with an eDP instance and
prepare and enable the panel accordingly.

Now that we know which hardware instance is DP and which is eDP,
parser->parse() is passed the connector_type and the parser is limited
to only search for a panel in the eDP case.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20211016221843.2167329-5-bjorn.andersson@linaro.org
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/dp: Allow specifying connector_type per controller

As the following patches introduced support for multiple DP blocks in a
platform and some of those block might be eDP it becomes useful to be
able to specify the connector type per block.

Although there's only a single block at this point, the array of descs
and the search in dp_display_get_desc() are introduced here to simplify
the next patch, that does introduce support for multiple DP blocks.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20211016221843.2167329-4-bjorn.andersson@linaro.org
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm: add support to take dpu snapshot

Add the msm_disp_snapshot module which adds supports to dump dpu
registers and capture the drm atomic state which can be used in
case of error conditions.

changes in v5:
- start storing disp_state in msm_kms instead of dpu_kms
- get rid of MSM_DISP_SNAPSHOT_IN_* enum by simplifying the functions
- move snprintf inside the snapshot core by using varargs
- get rid of some stale code comments
- allow snapshot module for non-DPU targets

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/1618606645-19695-3-git-send-email-abhinavk@codeaurora.org
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/dp: initialize audio_comp when audio starts

Initialize audio_comp when audio starts and wait for audio_comp at
dp_display_disable(). This will take care of both dongle unplugged
and display off (suspend) cases.

Changes in v2:
-- add dp_display_signal_audio_start()

Changes in v3:
-- restore dp_display_handle_plugged_change() at dp_hpd_unplug_handle().

Changes in v4:
-- none

Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Tested-by: Stephen Boyd <swboyd@chromium.org>
Fixes: c703d5789590 ("drm/msm/dp: trigger unplug event in msm_dp_display_disable")
Link: https://lore.kernel.org/r/1619048258-8717-3-git-send-email-khsieh@codeaurora.org
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/dp: Use qmp phy for DP PLL and PHY

Make the necessary changes to the DP driver to use the qmp phy from the
common phy framework instead of rolling our own in the drm subsystem.
This also removes the PLL code and adds proper includes so things build.

Cc: Jeykumar Sankaran <jsanka@codeaurora.org>
Cc: Chandan Uddaraju <chandanu@codeaurora.org>
Cc: Vara Reddy <varar@codeaurora.org>
Cc: Tanmay Shah <tanmay@codeaurora.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Manu Gautam <mgautam@codeaurora.org>
Cc: Sandeep Maheswaram <sanm@codeaurora.org>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Jonathan Marek <jonathan@marek.ca>
Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Cc: Rob Clark <robdclark@chromium.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/dp: wait for audio notification before disabling clocks

In the current implementation, there is a very small window for
the audio side to safely signal the hdmi_code_shutdown() before
the clocks are disabled.

Add some synchronization between the DP display and DP audio module
to safely disable the clocks to avoid unclocked access from audio
side.

In addition, audio side can open the sound card even if DP monitor
is not connected. Avoid programming hardware registers in this case
and bail out early.

Changes in v4:
- removed some leftover prints

Changes in v5:
- fix crash when user tries to play audio in suspended
state

Changes in v6:
- rebased on top of latest patchset of dependency

Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/dp: add hook_plugged_cb hdmi-codec op for MSM DP driver

Add the hook_plugged_cb op for the MSM DP driver to signal connect
and disconnect events to the hdmi-codec driver which in-turn shall
notify the audio subsystem to start a new or teardown an existing
session.

Changes in v2: none
Changes in v3: none
Changes in v4: rebase on top of latest patchset of dependency
Changes in v5: rebase on top of latest patchset of dependency
Changes in v6: none

Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/dp: add audio support for Display Port on MSM

Introduce audio support for Display Port on MSM chipsets.
This change integrates DP audio sub-module with the main
Display Port platform driver.

In addition, this change leverages hdmi_codec_ops to expose
the operations to the audio driver.

Changes in v2: fix up a compilation issue on drm-next branch
Changes in v3: none
Changes in v4: none
Changes in v5: none
Changes in v6: rebase on top of latest patchset of dependency

Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/dp: Add DP compliance tests on Snapdragon Chipsets

add event thread to execute events serially from event queue. Also
timeout mode is supported which allow an event be deferred to be
executed at later time. Both link and phy compliant tests had been
done successfully.

Changes in v2:
-- Fix potential deadlock by removing redundant connect_mutex
-- Check and enable link clock during modeset
-- Drop unused code and fix function prototypes.
-- set sink power to normal operation state (D0) before DPCD read

Changes in v3:
-- push idle pattern at main link before timing generator off
-- add timeout handles for both connect and disconnect

Changes in v4:
-- add ST_SUSPEND_PENDING to handles suspend/modeset test operations
-- clear dp phy aux interrupt status when ERR_DPPHY_AUX error
-- send segment addr during edid read
-- clear bpp depth before MISC register write

Changes in v5:
-- add ST_SUSPENDED to fix crash at resume

Changes in v6:
-- at msm_dp_display_enable() do not return until resume_done to avoid
kms commit timeout

Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/dp: add support for DP PLL driver

Add the needed DP PLL specific files to support
display port interface on msm targets.

The DP driver calls the DP PLL driver registration.
The DP driver sets the link and pixel clock sources.

Changes in v2:
-- Update copyright markings on all relevant files.
-- Use DRM_DEBUG_DP for debug msgs.

Changes in v4:
-- Update the DP link clock provider names

Changes in V5:
-- Addressed comments from Stephen Boyd, Rob clark.

Changes in V6:
-- Remove PLL as separate driver and include PLL as DP module
-- Remove redundant clock parsing from PLL module and make DP as
clock provider
-- Map USB3 DPCOM and PHY IO using hardcoded register address and
move mapping form parser to PLL module
-- Access DP PHY modules from same base address using offsets instead of
deriving base address of individual module from device tree.
-- Remove dp_pll_10nm_util.c and include its functionality in
dp_pll_10nm.c
-- Introduce new data structures private to PLL module

Changes in v7:

-- Remove DRM_MSM_DP_PLL config from Makefile and Kconfig
-- Remove set_parent from determin_rate API
-- Remove phy_pll_vco_div_clk from parent list
-- Remove flag CLK_DIVIDER_ONE_BASED
-- Remove redundant cell-index property parsing

Changes in v8:

-- Unregister hardware clocks during driver cleanup

Changes in v9:

-- Remove redundant Kconfig option DRM_MSM_DP_10NM_PLL

Changes in v10:

-- Limit 10nm PLL function scope

Signed-off-by: Chandan Uddaraju <chandanu@codeaurora.org>
Signed-off-by: Vara Reddy <varar@codeaurora.org>
Signed-off-by: Tanmay Shah <tanmay@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>

drm/msm/dp: add displayPort driver support

Add the needed displayPort files to enable DP driver
on msm target.

"dp_display" module is the main module that calls into
other sub-modules. "dp_drm" file represents the interface
between DRM framework and DP driver.

Changes in v12:

-- Add support of pm ops in display port driver
-- Clear bpp depth bits before writing to MISC register
-- Fix edid read

Previous Change log:
https://lkml.kernel.org/lkml/20200818051137.21478-3-tanmay@codeaurora.org/

Signed-off-by: Chandan Uddaraju <chandanu@codeaurora.org>
Signed-off-by: Vara Reddy <varar@codeaurora.org>
Signed-off-by: Tanmay Shah <tanmay@codeaurora.org>
Co-developed-by: Abhinav Kumar <abhinavk@codeaurora.org>
Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org>
Co-developed-by: Kuogee Hsieh <khsieh@codeaurora.org>
Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
Co-developed-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Guenter Roeck <groeck@chromium.org>
Co-developed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>