a095f15c00
Add support for TI's sn65dsi86 dsi2edp bridge chip. The chip converts DSI transmitted signal to eDP signal, which is fed to the connected eDP panel. This chip can be controlled via either i2c interface or dsi interface. Currently in driver all the control registers are being accessed through i2c interface only. Also as of now HPD support has not been added to bridge chip driver. Changes in v1: - Split the dt-bindings and the driver support into separate patches (Andrzej Hajda). - Use of gpiod APIs to parse and configure gpios instead of obsolete ones (Andrzej Hajda). - Use macros to define the register offsets (Andrzej Hajda). Changes in v2: - Separate out edp panel specific HW resource handling from bridge driver and create a separate edp panel drivers to handle panel specific mode information and HW resources (Sean Paul). - Replace pr_* APIs to DRM_* APIs to log error or debug information (Sean Paul). - Remove some of the unnecessary structure/variable from driver (Sean Paul). - Rename the function and structure prefix "sn65dsi86" to "ti_sn_bridge" (Sean Paul / Rob Herring). - Remove most of the hard-coding and modified the bridge init sequence based on current mode (Sean Paul). - Remove the existing function to retrieve the EDID data and implemented this as an i2c_adapter and use drm_get_edid() (Sean Paul). - Remove the dummy irq handler implementation, will add back the proper irq handling later (Sean Paul). - Capture the required enable gpios in a single array based on dt entry instead of having individual descriptor for each gpio (Sean Paul). Changes in v3: - Remove usage of irq_gpio and replace it as "interrupts" property (Rob Herring). - Remove the unnecessary header file inclusions (Sean Paul). - Rearrange the header files in alphabetical order (Sean Paul). - Use regmap interface to perform i2c transactions. - Update Copyright/License field and address other review comments (Jordan Crouse). Changes in v4: - Update License/Copyright (Sean Paul). - Add Kconfig and Makefile changes (Sean Paul). - Drop i2c gpio handling from this bridge driver, since i2c sda/scl gpios will be handled by i2c master. - Update required supplies names. - Remove unnecessary goto statements (Sean Paul). - Add mutex lock to power_ctrl API to avoid race conditions (Sean Paul). - Add support to parse reference clk frequency from dt(optional). - Update the bridge chip enable/disable sequence. Changes in v5: - Fixed Kbuild test service reported warnings. Changes in v6: - Use PM runtime based ref-counting instead of local ref_count mechanism (Stephen Boyd). - Clean up some debug logs and indentations (Sean Paul). - Simplify dp rate calculation (Sean Paul). - Add support to configure refclk based on input REFCLK pin or DACP/N pin (Stephen Boyd). Changes in v7: - Use static supply entries instead of dynamic allocation (Andrzej Hajda). - Defer bridge driver probe if panel is not probed (Andrzej Hajda). - Update of_graph APIs for correct node reference management. (Andrzej Hajda). - Remove local display_mode object (Andrzej Hajda). - Remove version id check function from driver. Changes in v8: - Move dsi register/attach function to bridge driver probe (Andrzej Hajda). - Introduce a new helper function to write 16bit words into consecutive registers (Andrzej Hajda). - Remove unnecessary macros (Andrzej Hajda). Changes in v9: - Remove dsi register/attach from bridge probe, since dsi dev register completion also waits for any panel or bridge to get added. This creates deadlock situation when bridge driver calls dsi dev register and attach before bridge add, in its probe function. - Fix issues faced during testing of bridge driver on actual HW. - Remove unnecessary initializations (Stephen Boyd). - Use local refclk lut size instead of global macro (Sean Paul). Changes in v10: - Use refclk to determine if continuous dsi clock is needed or not. Changes in v11: - Read DPPLL_SRC register to determine continuous clock instead of using refclk handle (Stephen Boyd). Changes in v12: - Explain in comment as in why dsi dev registration is done in bridge_attach (Andrzej Hajda). - Move HPD disable to bridge_pre_enable (Andrzej Hajda). - Make panel/DDC exclusive until HPD support is added (Andrzej Hajda). Changes in v13: - eDP panels report EDID via DP-AUX channel, so remove support for dedicated DDC line (Andrzej Hajda). Changes in v14: - Remove unnecessary drm_panel checks (Andrzej Hajda). Signed-off-by: Sandeep Panda <spanda@codeaurora.org> Reviewed-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/1532069642-21392-1-git-send-email-spanda@codeaurora.org
147 lines
3.6 KiB
Plaintext
147 lines
3.6 KiB
Plaintext
config DRM_BRIDGE
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def_bool y
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depends on DRM
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help
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Bridge registration and lookup framework.
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config DRM_PANEL_BRIDGE
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def_bool y
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depends on DRM_BRIDGE
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depends on DRM_KMS_HELPER
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select DRM_PANEL
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help
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DRM bridge wrapper of DRM panels
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menu "Display Interface Bridges"
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depends on DRM && DRM_BRIDGE
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config DRM_ANALOGIX_ANX78XX
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tristate "Analogix ANX78XX bridge"
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select DRM_KMS_HELPER
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select REGMAP_I2C
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---help---
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ANX78XX is an ultra-low Full-HD SlimPort transmitter
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designed for portable devices. The ANX78XX transforms
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the HDMI output of an application processor to MyDP
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or DisplayPort.
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config DRM_CDNS_DSI
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tristate "Cadence DPI/DSI bridge"
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select DRM_KMS_HELPER
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select DRM_MIPI_DSI
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select DRM_PANEL_BRIDGE
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depends on OF
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help
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Support Cadence DPI to DSI bridge. This is an internal
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bridge and is meant to be directly embedded in a SoC.
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config DRM_DUMB_VGA_DAC
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tristate "Dumb VGA DAC Bridge support"
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depends on OF
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select DRM_KMS_HELPER
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help
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Support for non-programmable RGB to VGA DAC bridges, such as ADI
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ADV7123, TI THS8134 and THS8135 or passive resistor ladder DACs.
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config DRM_LVDS_ENCODER
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tristate "Transparent parallel to LVDS encoder support"
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depends on OF
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select DRM_PANEL_BRIDGE
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help
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Support for transparent parallel to LVDS encoders that don't require
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any configuration.
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config DRM_MEGACHIPS_STDPXXXX_GE_B850V3_FW
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tristate "MegaChips stdp4028-ge-b850v3-fw and stdp2690-ge-b850v3-fw"
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depends on OF
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select DRM_KMS_HELPER
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select DRM_PANEL
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---help---
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This is a driver for the display bridges of
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GE B850v3 that convert dual channel LVDS
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to DP++. This is used with the i.MX6 imx-ldb
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driver. You are likely to say N here.
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config DRM_NXP_PTN3460
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tristate "NXP PTN3460 DP/LVDS bridge"
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depends on OF
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select DRM_KMS_HELPER
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select DRM_PANEL
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---help---
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NXP PTN3460 eDP-LVDS bridge chip driver.
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config DRM_PARADE_PS8622
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tristate "Parade eDP/LVDS bridge"
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depends on OF
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select DRM_PANEL
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select DRM_KMS_HELPER
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select BACKLIGHT_LCD_SUPPORT
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select BACKLIGHT_CLASS_DEVICE
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---help---
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Parade eDP-LVDS bridge chip driver.
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config DRM_SIL_SII8620
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tristate "Silicon Image SII8620 HDMI/MHL bridge"
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depends on OF
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select DRM_KMS_HELPER
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imply EXTCON
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select INPUT
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select RC_CORE
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help
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Silicon Image SII8620 HDMI/MHL bridge chip driver.
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config DRM_SII902X
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tristate "Silicon Image sii902x RGB/HDMI bridge"
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depends on OF
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select DRM_KMS_HELPER
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select REGMAP_I2C
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---help---
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Silicon Image sii902x bridge chip driver.
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config DRM_SII9234
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tristate "Silicon Image SII9234 HDMI/MHL bridge"
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depends on OF
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---help---
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Say Y here if you want support for the MHL interface.
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It is an I2C driver, that detects connection of MHL bridge
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and starts encapsulation of HDMI signal.
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config DRM_THINE_THC63LVD1024
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tristate "Thine THC63LVD1024 LVDS decoder bridge"
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depends on OF
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---help---
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Thine THC63LVD1024 LVDS/parallel converter driver.
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config DRM_TOSHIBA_TC358767
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tristate "Toshiba TC358767 eDP bridge"
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depends on OF
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select DRM_KMS_HELPER
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select REGMAP_I2C
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select DRM_PANEL
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---help---
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Toshiba TC358767 eDP bridge chip driver.
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config DRM_TI_TFP410
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tristate "TI TFP410 DVI/HDMI bridge"
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depends on OF
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select DRM_KMS_HELPER
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---help---
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Texas Instruments TFP410 DVI/HDMI Transmitter driver
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config DRM_TI_SN65DSI86
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tristate "TI SN65DSI86 DSI to eDP bridge"
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depends on OF
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select DRM_KMS_HELPER
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select REGMAP_I2C
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select DRM_PANEL
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help
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Texas Instruments SN65DSI86 DSI to eDP Bridge driver
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source "drivers/gpu/drm/bridge/analogix/Kconfig"
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source "drivers/gpu/drm/bridge/adv7511/Kconfig"
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source "drivers/gpu/drm/bridge/synopsys/Kconfig"
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endmenu
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