coreboot-kgpe-d16/src/drivers/i2c/ptn3460/Kconfig

config DRIVERS_I2C_PTN3460
	bool
	default n
	help
	  Enable support for external display bridge (eDP to LVDS) PTN3460.

config PTN3460_EARLY_INIT
	bool
	default n
	depends on DRIVERS_I2C_PTN3460
	help
	  Enable early initialization of the PTN3460 DP-to-LVDS bridge

config PTN3460_EARLY_ADDR
	hex
	default 0x60
	depends on PTN3460_EARLY_INIT
	help
	  I2C address for early initialization of the PTN3460 DP-to-LVDS bridge
drivers/i2c/ptn3460: Provide chip driver for PTN3460 This patch provides a chip driver for the DP-2-LVDS bridge PTN3460. The bridge is configured via I2C. As the mainboard has all the information regarding the attached LCD type, there are three hooks into mainboard code to get the information like EDID data and PTN config. TEST=Display is working on Siemens mainboards (e.g. mc_tcu3, mc_apl1, ...). Change-Id: Ie4c8176cd16836fa5b8fd2f72faf7a55723b82f6 Signed-off-by: Uwe Poeche <uwe.poeche@siemens.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/36642 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Werner Zeh <werner.zeh@siemens.com> 2019-10-28 11:28:50 +01:00			`config DRIVERS_I2C_PTN3460`
			`bool`
			`default n`
			`help`
			`Enable support for external display bridge (eDP to LVDS) PTN3460.`
drivers/i2c/ptn3460: Add early init option Create Kconfig options and boot state machine callback in ramstage for an early initialization of the PTN3460 DP-to-LVDS bridge. This allows showing the bootsplash screen on mainboards utilizing this chip during the PCI device enumeration. BUG=none TEST=Select PTN3460_EARLY_INIT config switch in mainboard Kconfig and check the log for "Attempting PTN3460 early init" message. If the board (e.g. siemens/mc_apl7 in this case) is also configured for showing the bootsplash logo, it should be now visible. Change-Id: I5424d062b3fb63c78cfced3971376353be11c504 Signed-off-by: Jan Samek <jan.samek@siemens.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/67681 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Uwe Poeche <uwe.poeche@siemens.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> 2022-09-15 16:31:44 +02:00
			`config PTN3460_EARLY_INIT`
			`bool`
			`default n`
			`depends on DRIVERS_I2C_PTN3460`
			`help`
			`Enable early initialization of the PTN3460 DP-to-LVDS bridge`

			`config PTN3460_EARLY_ADDR`
			`hex`
			`default 0x60`
			`depends on PTN3460_EARLY_INIT`
			`help`
			`I2C address for early initialization of the PTN3460 DP-to-LVDS bridge`