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| author | Matt DeVillier <matt.devillier@gmail.com> | 2022-03-04 15:32:41 -0600 |
|---|---|---|
| committer | Matt DeVillier <matt.devillier@gmail.com> | 2022-03-07 17:37:15 +0000 |
| commit | e611905eb3ba2ef9987fc2dad47ef42aa712308e (patch) | |
| tree | 84bd42952be5a91b8a0db3baf13b2e378de9f608 /src | |
| parent | 269b8e2cc528fdbc6cd82dd1a0a02dc5f6f0741c (diff) | |
| download | coreboot-e611905eb3ba2ef9987fc2dad47ef42aa712308e.tar.gz coreboot-e611905eb3ba2ef9987fc2dad47ef42aa712308e.tar.bz2 coreboot-e611905eb3ba2ef9987fc2dad47ef42aa712308e.zip | |
mb/google/hatch/var/jinlon: Fix EPS detection and disablement
Commit ebf14826
[mb/google/hatch/var/jinlon: Switch to using device pointers]
broke jinlon boards without an electronic privacy screen (EPS) by
disabling the parent device (iGPU) instead of the EPS when determined to
be not present via SKU ID.
Commit c5a3a4a6
[mb/google/hatch (baseboard): add ACPI backlight support]
broke EPS detection by adding a duplicate iGPU device to the devicetree,
resulting in the EPS entry being skipped.
Fix both of these issues by assigning the device alias to the EPS child
device, not the parent (iGPU). Rename the alias for clarity, and combine
the duplicate device definitions for the iGPU.
Test: build/boot google/jinlon SKU w/o EPS, observe GPU functional
in both firmware boot screens and Linux OS.
Change-Id: I0615ce361497abe6872085b0dec83292607e53dd
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62593
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src')
| -rw-r--r-- | src/mainboard/google/hatch/variants/jinlon/mainboard.c | 6 | ||||
| -rw-r--r-- | src/mainboard/google/hatch/variants/jinlon/overridetree.cb | 6 |
2 files changed, 5 insertions, 7 deletions
diff --git a/src/mainboard/google/hatch/variants/jinlon/mainboard.c b/src/mainboard/google/hatch/variants/jinlon/mainboard.c index d2e5b43bcda4..51ef3465eb8d 100644 --- a/src/mainboard/google/hatch/variants/jinlon/mainboard.c +++ b/src/mainboard/google/hatch/variants/jinlon/mainboard.c @@ -20,20 +20,20 @@ static bool eps_sku(uint32_t sku_id) static void check_for_eps(uint32_t sku_id) { - struct device *gfx_dev = DEV_PTR(igpu); + struct device *eps_dev = DEV_PTR(eps); if (eps_sku(sku_id)) { printk(BIOS_INFO, "SKU ID %u has EPS\n", sku_id); return; } - if (!gfx_dev) { + if (!eps_dev) { printk(BIOS_ERR, "Error! No EPS dev, view-angle-management won't work\n"); return; } printk(BIOS_INFO, "SKU ID %u doesn't have EPS, disabling...\n", sku_id); - gfx_dev->enabled = 0; + eps_dev->enabled = 0; } void variant_devtree_update(void) diff --git a/src/mainboard/google/hatch/variants/jinlon/overridetree.cb b/src/mainboard/google/hatch/variants/jinlon/overridetree.cb index b3887d4db1cc..88c9a54c7ee1 100644 --- a/src/mainboard/google/hatch/variants/jinlon/overridetree.cb +++ b/src/mainboard/google/hatch/variants/jinlon/overridetree.cb @@ -69,10 +69,8 @@ chip soc/intel/cannonlake register "ScsEmmcHs400Enabled" = "1" device domain 0 on - device pci 02.0 alias igpu on # Integrated Graphics Device - register "gfx" = "GMA_DEFAULT_PANEL(0)" - end device pci 02.0 on + register "gfx" = "GMA_DEFAULT_PANEL(0)" chip drivers/gfx/generic register "device_count" = "1" register "device[0].name" = ""LCD"" @@ -80,7 +78,7 @@ chip soc/intel/cannonlake register "device[0].addr" = "0x80010400" register "device[0].privacy.enabled" = "1" register "device[0].privacy.gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_E0)" - device generic 0 on end + device generic 0 alias eps on end end end # Integrated Graphics Device device pci 14.0 on |