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coreboot/src/drivers/intel
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Jeremy Compostella a2a7fecabf soc/intel/alderlake: Wait for panel power cycle to complete 
The Alder Lake PEIM graphics driver executed as part of the FSP does
not wait for the panel power cycle to complete before it initializes
communication with the display. It can result in AUX channel
communication time out and PEIM graphics driver failing to bring up
graphics.

If we have performed some graphics operation in romstage, it is
possible that a panel power cycle is still in progress. To prevent any
issue with the PEIM graphics driver it is preferable to ensure that
panel power cycle is complete.

This patch replaces commit ba2cef5b54
("soc/intel/common/block/early_graphics: Introduce a 200 ms delay")
workaround patch.

BUG=b:264526798
BRANCH=firmware-brya-14505.B
TEST=Developer screen is visible in the recovery flow

Change-Id: Iadd6c9552b184f7d6ec8df9d0d392634864ba50b
Signed-off-by: Jeremy Compostella <jeremy.compostella@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/72419
Reviewed-by: Anil Kumar K <anil.kumar.k@intel.com>
Reviewed-by: Tarun Tuli <taruntuli@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
2023-01-26 16:55:00 +00:00
..
dptf soc/intel: Drop SoC specific DPTF implementation 2022-12-23 13:00:30 +00:00
fsp1_1 {device,drivers}: Include <cpu/cpu.h> instead of <arch/cpu.h> 2022-11-03 13:08:23 +00:00
fsp2_0 drivers/intel/fsp2_0: Don't include <commonlib/bsd/compiler.h> 2022-12-22 18:53:07 +00:00
gma soc/intel/alderlake: Wait for panel power cycle to complete 2023-01-26 16:55:00 +00:00
i210 drivers/intel/i210/Makefile.inc: Fix "No such file or directory" error 2023-01-14 13:28:50 +00:00
ish drivers/intel/ish: Add ADL-P ISH DID 2022-12-27 04:41:12 +00:00
mipi_camera drivers/intel/mipi_camera: Remove IPU ES support entry for RPL 2022-11-25 01:03:21 +00:00
pmc_mux drivers/intel/pmc_mux: Fix printing type 2022-02-21 15:29:55 +00:00
ptt treewide: Include <device/mmio.h> instead of <arch/mmio.h> 2022-12-10 05:07:14 +00:00
soundwire acpi: Call acpi_fill_ssdt() only for enabled devices 2020-11-09 07:24:13 +00:00
usb4/retimer drivers: Get rid of unnecessary blank lines {before,after} brace 2022-07-17 18:45:23 +00:00