From 2cf52d80a6ecca97d44d2142521a984df45398f2 Mon Sep 17 00:00:00 2001 From: Matt DeVillier Date: Thu, 1 Sep 2022 15:09:24 -0500 Subject: mb/*/{device,override}tree: Set touchpads to use detect (vs probed) flag Historically, ChromeOS devices have worked around the problem of OEMs using several different parts for touchpads/touchscreens by using a ChromeOS kernel-specific 'probed' flag (rejected by the upstream kernel) to indicate that the device may or may not be present, and that the driver should probe to confirm device presence. Since c636142b, coreboot now supports detection for i2c devices at runtime when creating the device entries for the ACPI/SSDT tables, rendering the 'probed' flag obsolete for touchpads. Switch all touchpads in the tree from using the 'probed' flag to the 'detect' flag. Touchscreens require more involved power sequencing, which will be done at some future time, after which they will switch over as well. TEST: build/boot at least one variant for each baseboard in the tree. Verify touchpad works under Linux and Windows. Verify only a single touchpad device is present in the ACPI tables. Change-Id: I47c6eed37eb34c044e27963532e544d3940a7c15 Signed-off-by: Matt DeVillier Reviewed-on: https://review.coreboot.org/c/coreboot/+/67305 Reviewed-by: Sean Rhodes Tested-by: build bot (Jenkins) Reviewed-by: Tim Wawrzynczak --- src/mainboard/google/sarien/variants/arcada/devicetree.cb | 4 ++-- src/mainboard/google/sarien/variants/sarien/devicetree.cb | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) (limited to 'src/mainboard/google/sarien/variants') diff --git a/src/mainboard/google/sarien/variants/arcada/devicetree.cb b/src/mainboard/google/sarien/variants/arcada/devicetree.cb index 76f4fd3ecb..c0aebd5aa3 100644 --- a/src/mainboard/google/sarien/variants/arcada/devicetree.cb +++ b/src/mainboard/google/sarien/variants/arcada/devicetree.cb @@ -328,14 +328,14 @@ chip soc/intel/cannonlake register "hid" = ""ELAN0000"" register "desc" = ""ELAN Touchpad"" register "irq" = "ACPI_IRQ_EDGE_LOW(GPP_B3_IRQ)" - register "probed" = "1" + register "detect" = "1" device i2c 2c on end end chip drivers/i2c/hid register "generic.hid" = ""PNP0C50"" register "generic.desc" = ""Cirque Touchpad"" register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_B3_IRQ)" - register "generic.probed" = "1" + register "generic.detect" = "1" register "hid_desc_reg_offset" = "0x20" device i2c 2a on end end diff --git a/src/mainboard/google/sarien/variants/sarien/devicetree.cb b/src/mainboard/google/sarien/variants/sarien/devicetree.cb index 059744064d..903bcc6d43 100644 --- a/src/mainboard/google/sarien/variants/sarien/devicetree.cb +++ b/src/mainboard/google/sarien/variants/sarien/devicetree.cb @@ -357,7 +357,7 @@ chip soc/intel/cannonlake register "hid" = ""ELAN0000"" register "desc" = ""ELAN Touchpad"" register "irq" = "ACPI_IRQ_EDGE_LOW(GPP_B3_IRQ)" - register "probed" = "1" + register "detect" = "1" device i2c 2c on end end end # I2C #1 -- cgit v1.2.3