linux.git/drivers/gpu/drm/msm/dp/dp_parser.h, branch v6.7

drm/msm/dp: Add capability to parser and retrieve max DP link supported rate from link-frequencies property of dp_out endpoint

2023-01-09T01:06:44+00:00

Changes in v6:
-- second patch after split parser patch into two patches

Changes in v7:
-- without checking cnt against DP_MAX_NUM_DP_LANES to retrieve link rate

Changes in v9:
-- separate parser link-frequencies out of data-lanes

Changes in v10:
-- add dp_parser_link_frequencies()

Changes in v11:
-- return 0 if(!endpoint)

Changes in v12:
-- replace khz with kbytes at dp_parser.h

Changes in v14:
-- replace "parser" with "parse" at commit subject
-- use do_div() for 64 bits division

Signed-off-by: Kuogee Hsieh 
Reviewed-by: Dmitry Baryshkov 
Patchwork: https://patchwork.freedesktop.org/patch/516100/
Link: https://lore.kernel.org/r/1672163103-31254-5-git-send-email-quic_khsieh@quicinc.com
Signed-off-by: Dmitry Baryshkov

drm/msm/dp: fix bridge lifetime

2022-09-30T16:57:53+00:00

Device-managed resources allocated post component bind must be tied to
the lifetime of the aggregate DRM device or they will not necessarily be
released when binding of the aggregate device is deferred.

This can lead resource leaks or failure to bind the aggregate device
when binding is later retried and a second attempt to allocate the
resources is made.

For the DP bridges, previously allocated bridges will leak on probe
deferral.

Fix this by amending the DP parser interface and tying the lifetime of
the bridge device to the DRM device rather than DP platform device.

Fixes: c3bf8e21b38a ("drm/msm/dp: Add eDP support via aux_bus")
Cc: stable@vger.kernel.org      # 5.19
Reviewed-by: Dmitry Baryshkov 
Signed-off-by: Johan Hovold 
Tested-by: Kuogee Hsieh 
Reviewed-by: Kuogee Hsieh 
Patchwork: https://patchwork.freedesktop.org/patch/502667/
Link: https://lore.kernel.org/r/20220913085320.8577-8-johan+linaro@kernel.org
Signed-off-by: Abhinav Kumar

Merge tag 'char-misc-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2022-08-04T18:05:48+00:00

Pull char / misc driver updates from Greg KH:
 "Here is the large set of char and misc and other driver subsystem
  changes for 6.0-rc1.

  Highlights include:

   - large set of IIO driver updates, additions, and cleanups

   - new habanalabs device support added (loads of register maps much
     like GPUs have)

   - soundwire driver updates

   - phy driver updates

   - slimbus driver updates

   - tiny virt driver fixes and updates

   - misc driver fixes and updates

   - interconnect driver updates

   - hwtracing driver updates

   - fpga driver updates

   - extcon driver updates

   - firmware driver updates

   - counter driver update

   - mhi driver fixes and updates

   - binder driver fixes and updates

   - speakup driver fixes

  All of these have been in linux-next for a while without any reported
  problems"

* tag 'char-misc-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (634 commits)
  drivers: lkdtm: fix clang -Wformat warning
  char: remove VR41XX related char driver
  misc: Mark MICROCODE_MINOR unused
  spmi: trace: fix stack-out-of-bound access in SPMI tracing functions
  dt-bindings: iio: adc: Add compatible for MT8188
  iio: light: isl29028: Fix the warning in isl29028_remove()
  iio: accel: sca3300: Extend the trigger buffer from 16 to 32 bytes
  iio: fix iio_format_avail_range() printing for none IIO_VAL_INT
  iio: adc: max1027: unlock on error path in max1027_read_single_value()
  iio: proximity: sx9324: add empty line in front of bullet list
  iio: magnetometer: hmc5843: Remove duplicate 'the'
  iio: magn: yas530: Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr() macros
  iio: magnetometer: ak8974: Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr() macros
  iio: light: veml6030: Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr() macros
  iio: light: vcnl4035: Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr() macros
  iio: light: vcnl4000: Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr() macros
  iio: light: tsl2591: Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr()
  iio: light: tsl2583: Use DEFINE_RUNTIME_DEV_PM_OPS and pm_ptr()
  iio: light: isl29028: Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr()
  iio: light: gp2ap002: Switch to DEFINE_RUNTIME_DEV_PM_OPS and pm_ptr()
  ...

drm/msm/dp: delete vdda regulator related functions from eDP/DP controller

2022-07-07T05:05:58+00:00

Vdda regulators are related to both eDP and DP phy so that it should be
managed at eDP and DP phy driver instead of controller. This patch removes
vdda regulators related functions out of eDP/DP controller.

Signed-off-by: Kuogee Hsieh 
Reviewed-by: Stephen Boyd 
Reviewed-by: Dmitry Baryshkov 
Reviewed-by: Douglas Anderson 
Link: https://lore.kernel.org/r/1657038556-2231-4-git-send-email-quic_khsieh@quicinc.com
Signed-off-by: Vinod Koul

drm/msm/dp: rewrite dss_module_power to use bulk clock functions

2022-07-04T18:05:28+00:00

In order to simplify DP code, drop hand-coded loops over clock arrays,
replacing them with clk_bulk_* functions.

Signed-off-by: Dmitry Baryshkov 
Reviewed-by: Stephen Boyd 
Patchwork: https://patchwork.freedesktop.org/patch/474717/
Link: https://lore.kernel.org/r/20220217055529.499829-6-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov

drm/msm/dp: Add eDP support via aux_bus

2022-05-01T23:13:01+00:00

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 
Reviewed-by: Douglas Anderson 
Reviewed-by: Stephen Boyd 
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

Merge branches 'msm-next-lumag-core', 'msm-next-lumag-dpu', 'msm-next-lumag-dp', 'msm-next-lumag-dsi', 'msm-next-lumag-hdmi' and 'msm-next-lumag-mdp5' into msm-next-lumag

2022-02-19T02:31:42+00:00

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

2022-02-19T02:31:12+00:00

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 
Tested-by: Kuogee Hsieh 
Reviewed-by: Stephen Boyd 
Link: https://lore.kernel.org/r/20220211224006.1797846-3-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov

drm/msm/dpu: simplify clocks handling

2022-02-18T17:15:12+00:00

DPU driver contains code to parse clock items from device tree into
special data struct and then enable/disable/set rate for the clocks
using that data struct. However the DPU driver itself uses only parsing
and enabling/disabling part (the rate setting is used by DP driver).

Move this implementation to the DP driver (which actually uses rate
setting) and replace hand-coded enable/disable/get loops in the DPU
with the respective clk_bulk operations. Put operation is removed
completely because, it is handled using devres instead.

DP implementation is unchanged for now.

Tested-by: Jessica Zhang  # RB3 (sdm845) and RB5  (qrb5165)
Reviewed-by: Jessica Zhang 
Signed-off-by: Dmitry Baryshkov 
Link: https://lore.kernel.org/r/20220217055529.499829-2-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov

drm/msm/dp: Allow attaching a drm_panel

2021-10-18T21:28:30+00:00

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 
Reviewed-by: Stephen Boyd 
Link: https://lore.kernel.org/r/20211016221843.2167329-5-bjorn.andersson@linaro.org
Signed-off-by: Rob Clark