The video plls are on MxC rail and needs to be configured before being
used for functional use case, so update the pll configs as part of the
pll structure.

Signed-off-by: Taniya Das <quic_tdas@quicinc.com>

During boot-up, there is a possibility that the PLL configuration might
be missed even after invoking pll_configure() from the clock controller
probe. This is often due to the PLL being connected to rail or rails
that are in an OFF state and current clock controller also cannot vote
on multiple rails. As a result, the PLL may be enabled with suboptimal
settings, leading to functional issues.

The PLL configuration, now part of clk_alpha_pll, can be reused to
reconfigure the PLL to a known good state before scaling for frequency.
The 'clk_alpha_pll_reconfigure()' can be updated to support more PLLs
in future.

Signed-off-by: Taniya Das <quic_tdas@quicinc.com>

Integrate the PLL configuration into clk_alpha_pll to facilitate future
reuse as needed. This is particularly useful when the PLL requires
reconfiguration.

Signed-off-by: Taniya Das <quic_tdas@quicinc.com>

Add an entry for iris video decoder accelerator driver.

Signed-off-by: Vikash Garodia <quic_vgarodia@quicinc.com>
Tested-by: Stefan Schmidt <stefan.schmidt@linaro.org> # x1e80100 (Dell
Reviewed-by: Stefan Schmidt <stefan.schmidt@linaro.org>
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD

Initialize the platform data and enable video driver probe of SM8250
SoC. Add a kernel param to select between venus and iris drivers for
platforms supported by both drivers, for ex: SM8250.

Tested-by: Stefan Schmidt <stefan.schmidt@linaro.org> # x1e80100 (Dell
Reviewed-by: Stefan Schmidt <stefan.schmidt@linaro.org>
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD

Based on state machine design, add allow checks to transition from one
sub-state to another sub-states.

Signed-off-by: Vedang Nagar <quic_vnagar@quicinc.com>
Tested-by: Stefan Schmidt <stefan.schmidt@linaro.org> # x1e80100 (Dell
Reviewed-by: Stefan Schmidt <stefan.schmidt@linaro.org>
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD

Implement power scaling including vpu2 and vpu3 specific calculation for
clock and bus bandwidth which depends on hardware configuration, codec
format, resolution and frame rate.

Signed-off-by: Vedang Nagar <quic_vnagar@quicinc.com>
Tested-by: Stefan Schmidt <stefan.schmidt@linaro.org> # x1e80100 (Dell
Reviewed-by: Stefan Schmidt <stefan.schmidt@linaro.org>
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD

Based on the hardware capabilities, add check to restrict whether the
video session is supported or not by the hardware during start_streaming
and queue_setup.

Signed-off-by: Vedang Nagar <quic_vnagar@quicinc.com>
Tested-by: Stefan Schmidt <stefan.schmidt@linaro.org> # x1e80100 (Dell
Reviewed-by: Stefan Schmidt <stefan.schmidt@linaro.org>
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD

handle the V4L2_DEC_CMD_STOP by initiating drain sequence to firmware.
Process and decode all OUTPUT buffers queued by the client before the
VIDIOC_DECODER_CMD() was issued and mark the last buffer with
V4L2_BUF_FLAG_LAST flag. Decoder is stopped after processing the last
buffer.

Resume the decoder when one of below are issued by client:
- V4L2_DEC_CMD_START
- pair of VIDIOC_STREAMOFF() and VIDIOC_STREAMON() on the CAPTURE queue
- pair of VIDIOC_STREAMOFF() and VIDIOC_STREAMON() on the OUTPUT queue

Add the handling to resume decoding when client issues
V4L2_DEC_CMD_START to resume decoding after source change is detected.

Tested-by: Stefan Schmidt <stefan.schmidt@linaro.org> # x1e80100 (Dell
Reviewed-by: Stefan Schmidt <stefan.schmidt@linaro.org>
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD

The decoder is stopped after it completes the dynamic resolution change
sequence. Handle VIDIOC_STREAMOFF() and VIDIOC_STREAMON() on the CAPTURE
queue by client to resume the decoding process.

Tested-by: Stefan Schmidt <stefan.schmidt@linaro.org> # x1e80100 (Dell
Reviewed-by: Stefan Schmidt <stefan.schmidt@linaro.org>
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD

Handle the response sent by firmware, when source change is detected by
firmware. Read the parameter subscribed to firmware for source change to
detect the parameter with changed value. Raise the source change event
to client and update the instance sub state.

Mark the last buffer from before the source change with the
V4L2_BUF_FLAG_LAST flag and return to client.

Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Tested-by: Stefan Schmidt <stefan.schmidt@linaro.org> # x1e80100 (Dell
Reviewed-by: Stefan Schmidt <stefan.schmidt@linaro.org>
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD

Implement vb2 ops for buf queue. Below are the different buffer
attributes:
BUF_ATTR_DEFERRED - buffer queued by client but not submitted to
firmware.
BUF_ATTR_PENDING_RELEASE - buffers requested to be released from
firmware.
BUF_ATTR_QUEUED - buffers submitted to firmware.
BUF_ATTR_DEQUEUED - buffers received from firmware.
BUF_ATTR_BUFFER_DONE - buffers sent back to vb2.

Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Tested-by: Stefan Schmidt <stefan.schmidt@linaro.org> # x1e80100 (Dell
Reviewed-by: Stefan Schmidt <stefan.schmidt@linaro.org>
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD

Implement functions for creating, queueing, releasing and destroying
buffers for internal usage.

Tested-by: Stefan Schmidt <stefan.schmidt@linaro.org> # x1e80100 (Dell
Reviewed-by: Stefan Schmidt <stefan.schmidt@linaro.org>
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD

For hfi_gen2, subscribe for different bitstream parameters to firmware,
to get notified for change in any of the subscribed parameters.

Signed-off-by: Vedang Nagar <quic_vnagar@quicinc.com>
Tested-by: Stefan Schmidt <stefan.schmidt@linaro.org> # x1e80100 (Dell
Reviewed-by: Stefan Schmidt <stefan.schmidt@linaro.org>
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD

During stream on, set some mandatory properties to firmware to start a
session. Set all v4l2 properties set by client, to firmware prepared
with the dependency graph.

Signed-off-by: Vedang Nagar <quic_vnagar@quicinc.com>
Tested-by: Stefan Schmidt <stefan.schmidt@linaro.org> # x1e80100 (Dell
Reviewed-by: Stefan Schmidt <stefan.schmidt@linaro.org>
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD

In stream on, send HFI_CMD_START on capture and output planes to start
the processing on respective planes.

During stream off, send HFI_CMD_STOP to firmware which is a synchronous
command. After the response is received from firmware, the session is
closed on firmware.

Introduce different states for instance and state transitions.

IRIS_INST_INIT - video instance is opened.
IRIS_INST_INPUT_STREAMING - stream on is completed on output plane.
IRIS_INST_OUTPUT_STREAMING - stream on is completed on capture plane.
IRIS_INST_STREAMING - stream on is completed on both output and capture
planes.
IRIS_INST_DEINIT - video instance is closed.
IRIS_INST_ERROR - error state.

                   |
                   v
            -------------
  +---------|   INIT    |---------  +
  |         -------------           |
  |            ^    ^               |
  |           /      \              |
  |          /        \             |
  |         v          v            |
  |    -----------    -----------   |
  |   |   INPUT         OUTPUT  |   |
  |---| STREAMING     STREAMING |---|
  |    -----------    -----------   |
  |        ^            ^           |
  |         \          /            |
  |          \        /             |
  |           v      v              |
  |         -------------           |
  |--------|  STREAMING |-----------|
  |         -------------           |
  |               |                 |
  |               |                 |
  |               v                 |
  |          -----------            |
  +-------->|  DEINIT   |<----------+
  |          -----------            |
  |               |                 |
  |               |                 |
  |               v                 |
  |          ----------             |
  +-------->|   ERROR  |<-----------+
             ----------.

Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Tested-by: Stefan Schmidt <stefan.schmidt@linaro.org> # x1e80100 (Dell
Reviewed-by: Stefan Schmidt <stefan.schmidt@linaro.org>
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD

Implement query_cap ioctl with necessary hooks.

Signed-off-by: Vedang Nagar <quic_vnagar@quicinc.com>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Tested-by: Stefan Schmidt <stefan.schmidt@linaro.org> # x1e80100 (Dell
Reviewed-by: Stefan Schmidt <stefan.schmidt@linaro.org>
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD

Initialize ctrl handler by reading platform specific firmware
capabilities. Capabilities are features supported by a specific platform
(SOC). Each capability is defined with min, max, range, default value
and corresponding HFI. Implement s_ctrl and g_volatile_ctrl ctrl ops.

Co-developed-by: Vedang Nagar <quic_vnagar@quicinc.com>
Signed-off-by: Vedang Nagar <quic_vnagar@quicinc.com>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Tested-by: Stefan Schmidt <stefan.schmidt@linaro.org> # x1e80100 (Dell
Reviewed-by: Stefan Schmidt <stefan.schmidt@linaro.org>
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD

Implement subscribe_event and unsubscribe_event iocts with necessary
hooks.

Signed-off-by: Vedang Nagar <quic_vnagar@quicinc.com>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Tested-by: Stefan Schmidt <stefan.schmidt@linaro.org> # x1e80100 (Dell
Reviewed-by: Stefan Schmidt <stefan.schmidt@linaro.org>
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD

Implement enum_fmt and enum_framesizes ioctls with necessary hooks.

Signed-off-by: Vedang Nagar <quic_vnagar@quicinc.com>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Tested-by: Stefan Schmidt <stefan.schmidt@linaro.org> # x1e80100 (Dell
Reviewed-by: Stefan Schmidt <stefan.schmidt@linaro.org>
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD

Implement g_selection ioctl in the driver with necessary hooks.

Signed-off-by: Vedang Nagar <quic_vnagar@quicinc.com>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Tested-by: Stefan Schmidt <stefan.schmidt@linaro.org> # x1e80100 (Dell
Reviewed-by: Stefan Schmidt <stefan.schmidt@linaro.org>
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD

Implement s_fmt, g_fmt and try_fmt ioctl ops with necessary hooks.

Signed-off-by: Vedang Nagar <quic_vnagar@quicinc.com>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Tested-by: Stefan Schmidt <stefan.schmidt@linaro.org> # x1e80100 (Dell
Reviewed-by: Stefan Schmidt <stefan.schmidt@linaro.org>
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD

Implement reqbuf IOCTL op and vb2_queue_setup vb2 op in the driver with
necessary hooks.

Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Tested-by: Stefan Schmidt <stefan.schmidt@linaro.org> # x1e80100 (Dell
Reviewed-by: Stefan Schmidt <stefan.schmidt@linaro.org>
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD

Implement runtime power management for iris including platform specific
power on/off sequence.

Tested-by: Stefan Schmidt <stefan.schmidt@linaro.org> # x1e80100 (Dell
Reviewed-by: Stefan Schmidt <stefan.schmidt@linaro.org>
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD

Host firmware interface (HFI) is well defined set of interfaces for
communication between host driver and firmware. The commands and
responses are exchanged in form of packets. One or multiple packets are
grouped under packet header. Each packet has packet type which describes
the specific HFI and payload which holds the corresponding value for
that HFI.

Tested-by: Stefan Schmidt <stefan.schmidt@linaro.org> # x1e80100 (Dell
Reviewed-by: Stefan Schmidt <stefan.schmidt@linaro.org>
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD

Set memory region to firmware and implement boot sequence.

Tested-by: Stefan Schmidt <stefan.schmidt@linaro.org> # x1e80100 (Dell
Reviewed-by: Stefan Schmidt <stefan.schmidt@linaro.org>
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD

Load/unload firmware in memory via mdt loader. Firmware is loaded as
part of core initialization and unloaded as part of core
de-initialization.

Tested-by: Stefan Schmidt <stefan.schmidt@linaro.org> # x1e80100 (Dell
Reviewed-by: Stefan Schmidt <stefan.schmidt@linaro.org>
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD

Introduce core state management for iris driver with necessary queues
needed for host firmware communication.

There are 3 types of queues:
Command queue - driver to write any command to firmware.
Message queue - firmware to send any response to driver.
Debug queue - firmware to write debug messages.
Initialize and configire shared queues during probe.

Different states for core:
IRIS_CORE_DEINIT - default state.
IRIS_CORE_INIT - core state with core initialized. FW loaded and HW
brought out of reset, shared queues established between host driver and
firmware.
IRIS_CORE_ERROR - error state.
      -----------
           |
           V
       -----------
       | DEINIT  |
       -----------
           ^
          / \
         /   \
        /     \
       /       \
      v         v
 -----------   ----------.
 |  INIT  |-->|  ERROR  |
 -----------   ----------.

Tested-by: Stefan Schmidt <stefan.schmidt@linaro.org> # x1e80100 (Dell
Reviewed-by: Stefan Schmidt <stefan.schmidt@linaro.org>
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD

Implement open, close and poll ops.

Open:
Configure the vb2 queue and v4l2 file handler. Allocate a video instance
and add the instance to core instance list.

Close:
Free the instance and remove it from core instance list.

Poll:
Wait for an event on vb2 src and vb2 dst queues.

Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Tested-by: Stefan Schmidt <stefan.schmidt@linaro.org> # x1e80100 (Dell
Reviewed-by: Stefan Schmidt <stefan.schmidt@linaro.org>
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD

In preparation of adding H264 decode functionality, add probe and remove
functions and platform data to initialize iris resources, which are
clocks, interconnects, power domains, reset clocks, and clock
frequencies used for iris hardware.

Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Tested-by: Stefan Schmidt <stefan.schmidt@linaro.org> # x1e80100 (Dell
Reviewed-by: Stefan Schmidt <stefan.schmidt@linaro.org>
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD

Introduce support for Qualcomm new video acceleration hardware i.e.
iris, used for video stream decoding and encoding on QCOM SM8550 SoC.

Cc: devicetree@vger.kernel.org
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Tested-by: Stefan Schmidt <stefan.schmidt@linaro.org> # x1e80100 (Dell
Reviewed-by: Stefan Schmidt <stefan.schmidt@linaro.org>
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD

Add the IRIS video codec to accelerate video decoding/encoding. Copied
mostly from sm8550.dtsi, the only difference is a slightly lower frequency
for the Turbo L1 level in the OPP table.

TODO: Add separate qcom,x1e80100-iris compatible.

Signed-off-by: Stephan Gerhold <stephan.gerhold@linaro.org>

Add the missing video resets that are needed for the IRIS video codec.
Copied from gcc-sm8550.c.

Signed-off-by: Stephan Gerhold <stephan.gerhold@linaro.org>

Add the missing video resets that are needed for the IRIS video codec.

Signed-off-by: Stephan Gerhold <stephan.gerhold@linaro.org>

Enable the Qualcomm SM8550 videocc to allow controlling the clocks needed
for the IRIS video codec.

Signed-off-by: Stephan Gerhold <stephan.gerhold@linaro.org>

Add the video clock controller for X1E80100, similar to sm8550.dtsi. It
provides the needed clocks/power domains for the IRIS video codec.

Signed-off-by: Stephan Gerhold <stephan.gerhold@linaro.org>

X1E80100 videocc is identical to the one in SM8550, aside from slightly
different recommended PLL frequencies. Add the separate frequency tables
for that and apply them if the qcom,x1e80100-videocc compatible is used.

Signed-off-by: Stephan Gerhold <stephan.gerhold@linaro.org>

X1E80100 videocc is largely identical to SM8550, aside from slightly
different recommended PLL frequencies. Add a separate qcom,x1e80100-videocc
compatible to the existing schema used for SM8550.

Signed-off-by: Stephan Gerhold <stephan.gerhold@linaro.org>