dsi85/Kconfig

config DRM_BRIDGE_DSI85
	tristate "DSI85 DSI-to-LVDS bridge"
	depends on OF
	select DRM_KMS_HELPER
	select REGMAP_I2C
	help
	  Support for the DSI85 DSI-to-LVDS-bridge.
Reimplement dsi85 as DRM bridge (squashed). (#1) * Reimplement dsi85 as DRM bridge (squashed). - blunt import of preliminary bridge driver - make dsi85 a kernel extension instead of a module to circumvent problems with DRM init order - make i2c matchstring match our DTS - find and use associated drm_panel - add hardcoded DSI85 init in bridge-enable - Do not drm_connector_register yet at bridge_attach time (unlike other bridge drivers) - Add a mipi_dsi_device to configure #lanes The DSI host wants to know the number of lanes, and guesses 1 lane if not given. The old attempt using just panel-simple was easy; a panel declared as DSI panel in panel-simple gets a mipi_dsi_device which it can configure. This driver follows the example of the adv7533 driver and creates its own mipi_dsi_device, where it places a hard-coded number of lanes. - cleanup * Compute DSI85 register values from Panel At bridge_mode_set time, fill all logical DSI85 registers from panel parameters and constant assumptions, then write logical registers to physical registers. Still needs override for a few logical registers: related to DSI clock, and related to horizontal parameters which our panel_simple contains with factor 2 to force proper DSI timings. * compute DSI input clock from DT attributes and mode * add debugging mode_fixup handler to bridge * add DT attrs for more DSI85 registers sync delay, DSI clock divider. And cleanup. * remove bridge_mode_fixup debug helper * use DRM logging macros uniformly * Derive sync polarity from panel's flags but make sure that DSI always uses standard polarity; fix that in the mode_fixup callback. * fix computation of dsi_clk_divider Code assumed wrong bit position in 0x0B, but with the right bit position, the divider is trivial to compute from existing params. There goes one DT attribute. * make LVDS regs 0x19..0x1B configurable by DT * add documentation 2017-05-18 09:27:11 +00:00			`config DRM_BRIDGE_DSI85`
			`tristate "DSI85 DSI-to-LVDS bridge"`
			`depends on OF`
			`select DRM_KMS_HELPER`
			`select REGMAP_I2C`
			`help`
			`Support for the DSI85 DSI-to-LVDS-bridge.`