linux.git/drivers/gpu/drm/bridge/Kconfig, branch for-next

drm/bridge: Add ITE IT6263 LVDS to HDMI converter

2024-11-05T11:26:43+00:00

Add basic HDMI video output support. Currently, only RGB888 output
pixel format is supported.  At the LVDS input side, the driver
supports single LVDS link and dual LVDS links with "jeida-24" LVDS
mapping.

Product link:
https://www.ite.com.tw/en/product/cate1/IT6263

Signed-off-by: Liu Ying 
Reviewed-by: Biju Das 
Acked-by: Maxime Ripard 
Tested-by: Biju Das 
Reviewed-by: Dmitry Baryshkov 
Link: https://patchwork.freedesktop.org/patch/msgid/20241104032806.611890-11-victor.liu@nxp.com
Signed-off-by: Dmitry Baryshkov

drm/bridge: lt9611: use HDMI Connector helper to set InfoFrames

2024-10-12T08:09:55+00:00

Use new HDMI Connector helpers in the Lontium LT9611 bridge driver.
Program InfoFrames using the helper's callbacks. Also use TMDS char rate
validation callback to filter out modes, instead of hardcoding 4k@30.

The Audio InfoFrame isn't yet handled by these helpers, it requires
additional drm_bridge interface changes.

Reviewed-by: Maxime Ripard 
Link: https://patchwork.freedesktop.org/patch/msgid/20240615-drm-bridge-hdmi-connector-v1-1-d59fc7865ab2@linaro.org
Signed-off-by: Dmitry Baryshkov

Merge drm/drm-next into drm-misc-next

2024-09-11T07:48:49+00:00

Backmerging to get fixes from v6.12-rc7.

Signed-off-by: Thomas Zimmermann

drm/bridge: add support for TI TDP158

2024-09-03T12:34:16+00:00

TDP158 is an AC-coupled DVI / HDMI to TMDS level shifting Redriver.
It supports DVI 1.0, HDMI 1.4b and 2.0b.
It supports 4 TMDS channels, HPD, and a DDC interface.
It supports dual power supply rails (1.1V on VDD, 3.3V on VCC)
for power reduction. Several methods of power management are
implemented to reduce overall power consumption.
It supports fixed receiver EQ gain using I2C or pin strap to
compensate for different lengths input cable or board traces.

Features

- AC-coupled TMDS or DisplayPort dual-mode physical layer input
to HDMI 2.0b TMDS physical layer output supporting up to 6Gbps
data rate, compatible with HDMI 2.0b electrical parameters
- DisplayPort dual-mode standard version 1.1
- Programmable fixed receiver equalizer up to 15.5dB
- Global or independent high speed lane control, pre-emphasis
and transmit swing, and slew rate control
- I2C or pin strap programmable
- Configurable as a DisplayPort redriver through I2C
- Full lane swap on main lanes
- Low power consumption (200 mW at 6Gbps, 8 mW in shutdown)

https://www.ti.com/lit/ds/symlink/tdp158.pdf

On our board, I2C_EN is pulled high.
Thus, this code defines a module_i2c_driver.

The default settings work fine for our use-case.
So this basic driver doesn't need to tweak any I2C registers.

Signed-off-by: Marc Gonzalez 
Reviewed-by: Robert Foss 
Signed-off-by: Robert Foss 
Link: https://patchwork.freedesktop.org/patch/msgid/20240812-tdp158-v5-2-78684a84ec23@freebox.fr

drm/bridge-connector: move to DRM_DISPLAY_HELPER module

2024-09-03T08:18:31+00:00

drm_bridge_connector is a "leaf" driver, belonging to the display
helper, rather than the "CRTC" drm_kms_helper module. Move the driver
to the drm/display and add necessary Kconfig selection clauses.

Suggested-by: Maxime Ripard 
Acked-by: Maxime Ripard 
Signed-off-by: Dmitry Baryshkov 
Link: https://patchwork.freedesktop.org/patch/msgid/20240903-drm-bridge-connector-fix-hdmi-reset-v5-2-daebde6d9857@linaro.org
Signed-off-by: Maxime Ripard

Revert "drm: Switch DRM_DISPLAY_HELPER to depends on"

2024-05-02T15:58:23+00:00

This reverts commit e075e496f516bf92bc0cbaf94d64e8d4a6b58321, as helper
code should always be selected by the driver that needs it, for the
convenience of the final user configuring a kernel.

The user who configures a kernel should not need to know which helpers
are needed for the driver he is interested in.  Making a driver depend
on helper code means that the user needs to know which helpers to enable
first, which is very user-unfriendly.

Signed-off-by: Geert Uytterhoeven 
Acked-by: Arnd Bergmann 
Link: https://patchwork.freedesktop.org/patch/msgid/1ba76cc4d96a8afefff5d1bc42fb1e1329c5da68.1713780345.git.geert+renesas@glider.be
Signed-off-by: Maxime Ripard

Revert "drm: Switch DRM_DISPLAY_DP_AUX_BUS to depends on"

2024-05-02T15:58:22+00:00

This reverts commit 4d15125d7fe637f401e64e33c99513adf6586fdd, as helper
code should always be selected by the driver that needs it, for the
convenience of the final user configuring a kernel.

The user who configures a kernel should not need to know which helpers
are needed for the driver he is interested in.  Making a driver depend
on helper code means that the user needs to know which helpers to enable
first, which is very user-unfriendly.

Signed-off-by: Geert Uytterhoeven 
Acked-by: Arnd Bergmann 
Link: https://patchwork.freedesktop.org/patch/msgid/79824fec01eb9ab0673b9409f9b39cc8b5cc338d.1713780345.git.geert+renesas@glider.be
Signed-off-by: Maxime Ripard

Revert "drm: Switch DRM_DISPLAY_DP_HELPER to depends on"

2024-05-02T15:58:21+00:00

This reverts commit 0323287de87d7e6e9c22c57d7440aa353a2298d0, as helper
code should always be selected by the driver that needs it, for the
convenience of the final user configuring a kernel.

The user who configures a kernel should not need to know which helpers
are needed for the driver he is interested in.  Making a driver depend
on helper code means that the user needs to know which helpers to enable
first, which is very user-unfriendly.

Signed-off-by: Geert Uytterhoeven 
Acked-by: Arnd Bergmann 
Link: https://patchwork.freedesktop.org/patch/msgid/89ac456805746b6d0c888f10c5120b11aacd3319.1713780345.git.geert+renesas@glider.be
Signed-off-by: Maxime Ripard

Revert "drm: Switch DRM_DISPLAY_HDCP_HELPER to depends on"

2024-05-02T15:58:21+00:00

This reverts commit 3166e7e6d935caaef07605a5c90773fbf9ffeaf4, as helper
code should always be selected by the driver that needs it, for the
convenience of the final user configuring a kernel.

The user who configures a kernel should not need to know which helpers
are needed for the driver he is interested in.  Making a driver depend
on helper code means that the user needs to know which helpers to enable
first, which is very user-unfriendly.

Signed-off-by: Geert Uytterhoeven 
Acked-by: Arnd Bergmann 
Link: https://patchwork.freedesktop.org/patch/msgid/a40e70a0abd3d841c23c107d452a43fdd70ef37a.1713780345.git.geert+renesas@glider.be
Signed-off-by: Maxime Ripard

drm/bridge: add lvds controller support for sam9x7

2024-04-23T07:29:43+00:00

Add a new LVDS controller driver for sam9x7 which does the following:
- Prepares and enables the LVDS Peripheral clock
- Defines its connector type as DRM_MODE_CONNECTOR_LVDS and adds itself
to the global bridge list.
- Identifies its output endpoint as panel and adds it to the encoder
display pipeline
- Enables the LVDS serializer

Signed-off-by: Manikandan Muralidharan 
Signed-off-by: Dharma Balasubiramani 
Acked-by: Hari Prasath Gujulan Elango 
Reviewed-by: Dmitry Baryshkov 
Link: https://lore.kernel.org/r/20240421011050.43265-3-dharma.b@microchip.com
Signed-off-by: Neil Armstrong 
Link: https://patchwork.freedesktop.org/patch/msgid/20240421011050.43265-3-dharma.b@microchip.com