Heiko Stuebner 71f68fe7f1 drm/rockchip: dsi: add ability to work as a phy instead of full dsi
SoCs like the rk3288 and rk3399 have 3 mipi dphys on them. One is TX-
only, one is RX-only and one can be configured to do either TX or RX.

The RX phy is statically connected to the first Image Signal Processor,
the TX phy is statically connected to the first DSI controller and
the TXRX phy is connected to both the second DSI controller as well
as the second ISP.

The RX dphy is controlled externally through registers in the "General
Register Files", while the other two are controlled through the
"Configuration and Test Interface" inside their DSI controller's
io-memory area.

The Rockchip dw-dsi controller already controls these dphys for the
TX case in the driver, but when we want to also allow configuration
for RX to the ISP from the media subsystem we need to expose phy-
functionality instead.

So add a bit of infrastructure to allow the dsi driver to work as a
phy and make sure it can be only one or the other at a time.

Similarly as the dsi-controller will be part of the drm-graph when
active, add an empty component to the drm-graph when in phy-mode
to make the rest of the drm-graph not wait for it.

Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Tested-by: Sebastian Fricke <sebastian.fricke@posteo.net>
Acked-by: Helen Koike <helen.koike@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210210111020.2476369-4-heiko@sntech.de
2021-07-25 17:19:49 +02:00

93 lines
3.1 KiB
Plaintext

# SPDX-License-Identifier: GPL-2.0-only
config DRM_ROCKCHIP
tristate "DRM Support for Rockchip"
depends on DRM && ROCKCHIP_IOMMU
select DRM_GEM_CMA_HELPER
select DRM_KMS_HELPER
select DRM_PANEL
select VIDEOMODE_HELPERS
select DRM_ANALOGIX_DP if ROCKCHIP_ANALOGIX_DP
select DRM_DW_HDMI if ROCKCHIP_DW_HDMI
select DRM_DW_MIPI_DSI if ROCKCHIP_DW_MIPI_DSI
select DRM_RGB if ROCKCHIP_RGB
select GENERIC_PHY if ROCKCHIP_DW_MIPI_DSI
select GENERIC_PHY_MIPI_DPHY if ROCKCHIP_DW_MIPI_DSI
select SND_SOC_HDMI_CODEC if ROCKCHIP_CDN_DP && SND_SOC
help
Choose this option if you have a Rockchip soc chipset.
This driver provides kernel mode setting and buffer
management to userspace. This driver does not provide
2D or 3D acceleration; acceleration is performed by other
IP found on the SoC.
if DRM_ROCKCHIP
config ROCKCHIP_ANALOGIX_DP
bool "Rockchip specific extensions for Analogix DP driver"
help
This selects support for Rockchip SoC specific extensions
for the Analogix Core DP driver. If you want to enable DP
on RK3288 or RK3399 based SoC, you should select this option.
config ROCKCHIP_CDN_DP
bool "Rockchip cdn DP"
depends on EXTCON=y || (EXTCON=m && DRM_ROCKCHIP=m)
help
This selects support for Rockchip SoC specific extensions
for the cdn DP driver. If you want to enable Dp on
RK3399 based SoC, you should select this
option.
config ROCKCHIP_DW_HDMI
bool "Rockchip specific extensions for Synopsys DW HDMI"
help
This selects support for Rockchip SoC specific extensions
for the Synopsys DesignWare HDMI driver. If you want to
enable HDMI on RK3288 or RK3399 based SoC, you should select
this option.
config ROCKCHIP_DW_MIPI_DSI
bool "Rockchip specific extensions for Synopsys DW MIPI DSI"
select GENERIC_PHY_MIPI_DPHY
help
This selects support for Rockchip SoC specific extensions
for the Synopsys DesignWare dsi driver. If you want to
enable MIPI DSI on RK3288 or RK3399 based SoC, you should
select this option.
config ROCKCHIP_INNO_HDMI
bool "Rockchip specific extensions for Innosilicon HDMI"
help
This selects support for Rockchip SoC specific extensions
for the Innosilicon HDMI driver. If you want to enable
HDMI on RK3036 based SoC, you should select this option.
config ROCKCHIP_LVDS
bool "Rockchip LVDS support"
depends on DRM_ROCKCHIP
depends on PINCTRL && OF
help
Choose this option to enable support for Rockchip LVDS controllers.
Rockchip rk3288 SoC has LVDS TX Controller can be used, and it
support LVDS, rgb, dual LVDS output mode. say Y to enable its
driver.
config ROCKCHIP_RGB
bool "Rockchip RGB support"
depends on DRM_ROCKCHIP
depends on PINCTRL
help
Choose this option to enable support for Rockchip RGB output.
Some Rockchip CRTCs, like rv1108, can directly output parallel
and serial RGB format to panel or connect to a conversion chip.
say Y to enable its driver.
config ROCKCHIP_RK3066_HDMI
bool "Rockchip specific extensions for RK3066 HDMI"
depends on DRM_ROCKCHIP
help
This selects support for Rockchip SoC specific extensions
for the RK3066 HDMI driver. If you want to enable
HDMI on RK3066 based SoC, you should select this option.
endif