The 2 DSI interfaces may be connected to 2 independent panels in bonded-DSI
mode. Horizontal timing and DSC configuration are adjusted per individual
panel in DSI host side. Support to multiple slice per packet is added for
the device setup to test the usage case. A panel driver is included as an
use case example.
Changes vs v3:
- A panel driver is added as an use case example.
- Move dsc_slice_per_pkt to struct drm_dsc_config.
- Polish commit messages.
- Link to v3: https://lore.kernel.org/all/20250924-dsi-dual-panel-upstream-v3-0-6927284f1098@linaro.org
Changes vs v2:
- Polish commit message to describe usage case and requirements to
panel driver.
- Remove changes in device tree and add dual_panel flag in mipi_dsi_device
to pass information from panel to dsi host.
- Drop the register programming to DSI_VBIF_CTRL, as no issue is seen
in latest test.
- Link to v2: https://lore.kernel.org/r/20250220-dual-dsi-v2-0-6c0038d5a2ef@linaro.org
Change vs v1:
- Add device tree binding for dual panel case in handling frame width for
DSC to avoid breaking existing dual-DSI case.
- Leverage Marijn's patch to configure proper slice per interface in
dsi_update_dsc_timing().
- Polish commit comments.
- Link to v1: https://lore.kernel.org/all/20240829-sm8650-v6-11-hmd-pocf-mdss-quad-upstream-8-v1-0-bdb05b4b5a2e@linaro.org/
Signed-off-by: Jun Nie <jun.nie@linaro.org>
---
Jun Nie (5):
drm/msm/dsi: support DSC configurations with slice_per_pkt > 1
drm/mipi-dsi: Add flag to support dual-panel configurations
drm/msm/dsi: Support dual panel use case with single CRTC
dt-bindings: display: Add Synaptics R63455 panel support
drm/panel: Add driver for Synaptics R63455 DSI panel
.../bindings/display/panel/synaptics,r63455.yaml | 125 ++++
drivers/gpu/drm/msm/dsi/dsi_host.c | 33 +-
drivers/gpu/drm/panel/Kconfig | 9 +
drivers/gpu/drm/panel/Makefile | 1 +
drivers/gpu/drm/panel/panel-synaptics-r63455.c | 631 +++++++++++++++++++++
include/drm/display/drm_dsc.h | 7 +
include/drm/drm_mipi_dsi.h | 2 +
7 files changed, 792 insertions(+), 16 deletions(-)
---
base-commit: 6654f8f33aa6229a90d4401519a62a2bf96cb851
change-id: 20260521-sm8650-7-1-bonded-dsi-7a7d5b70f687
Best regards,
--
Jun Nie <jun.nie@linaro.org>