Change in coreboot[master]: mb/google/brya/var/*: Add disable_gpio_export_in_crs to all devicetrees
Tim Wawrzynczak has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/60175 )
Change subject: mb/google/brya/var/*: Add disable_gpio_export_in_crs to all devicetrees ......................................................................
mb/google/brya/var/*: Add disable_gpio_export_in_crs to all devicetrees
None of the touchscreens used in the brya program (any brya board) should require exporting of GPIOs in the ACPI _CRS method for any i2c device. This can cause i2c devices to malfunction or cause timing sequence violations if:
1) ACPI exports a PowerResource for the device that uses GPIOs that are also exported in _CRS 2) The kernel driver for the device uses the GPIOs exported in _CRS for its own purposes. This means the state of the pin is out of sync between platform firmware and the kernel. The Linux ELAN I2C touchcsreen driver (https://source.chromium.org/chromiumos/chromiumos/codesearch/ +/main:src/third_party/kernel/upstream/drivers/input/touchscreen/ elants_i2c.c;l=1429) is one example of this.
Therefore, add disable_gpio_export_in_crs to all brya variants that use the drivers/i2c/generic or drivers/i2c/hid chip drivers.
Change-Id: Ib4475bd0dc885e230911de6298fd95baa868ef29 Signed-off-by: Tim Wawrzynczak twawrzynczak@chromium.org --- M src/mainboard/google/brya/variants/anahera/overridetree.cb M src/mainboard/google/brya/variants/anahera4es/overridetree.cb M src/mainboard/google/brya/variants/felwinter/overridetree.cb M src/mainboard/google/brya/variants/gimble/overridetree.cb M src/mainboard/google/brya/variants/gimble4es/overridetree.cb M src/mainboard/google/brya/variants/kano/overridetree.cb M src/mainboard/google/brya/variants/primus/overridetree.cb M src/mainboard/google/brya/variants/primus4es/overridetree.cb M src/mainboard/google/brya/variants/redrix/overridetree.cb M src/mainboard/google/brya/variants/redrix4es/overridetree.cb M src/mainboard/google/brya/variants/taeko/overridetree.cb M src/mainboard/google/brya/variants/taeko4es/overridetree.cb M src/mainboard/google/brya/variants/vell/overridetree.cb 13 files changed, 20 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/75/60175/1
diff --git a/src/mainboard/google/brya/variants/anahera/overridetree.cb b/src/mainboard/google/brya/variants/anahera/overridetree.cb index dc563a4..118ce0c 100644 --- a/src/mainboard/google/brya/variants/anahera/overridetree.cb +++ b/src/mainboard/google/brya/variants/anahera/overridetree.cb @@ -215,6 +215,7 @@ register "stop_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C6)" register "has_power_resource" = "1" + register "disable_gpio_export_in_crs" = "1" device i2c 10 on end end chip drivers/i2c/hid @@ -229,6 +230,7 @@ "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_C0)" register "generic.enable_delay_ms" = "1" register "generic.has_power_resource" = "1" + register "generic.disable_gpio_export_in_crs" = "1" register "hid_desc_reg_offset" = "0x01" device i2c 40 on end end diff --git a/src/mainboard/google/brya/variants/anahera4es/overridetree.cb b/src/mainboard/google/brya/variants/anahera4es/overridetree.cb index dc563a4..118ce0c 100644 --- a/src/mainboard/google/brya/variants/anahera4es/overridetree.cb +++ b/src/mainboard/google/brya/variants/anahera4es/overridetree.cb @@ -215,6 +215,7 @@ register "stop_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C6)" register "has_power_resource" = "1" + register "disable_gpio_export_in_crs" = "1" device i2c 10 on end end chip drivers/i2c/hid @@ -229,6 +230,7 @@ "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_C0)" register "generic.enable_delay_ms" = "1" register "generic.has_power_resource" = "1" + register "generic.disable_gpio_export_in_crs" = "1" register "hid_desc_reg_offset" = "0x01" device i2c 40 on end end diff --git a/src/mainboard/google/brya/variants/felwinter/overridetree.cb b/src/mainboard/google/brya/variants/felwinter/overridetree.cb index dafdbfc..9d2c61b 100644 --- a/src/mainboard/google/brya/variants/felwinter/overridetree.cb +++ b/src/mainboard/google/brya/variants/felwinter/overridetree.cb @@ -256,6 +256,7 @@ "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C6)" register "generic.stop_off_delay_ms" = "1" register "generic.has_power_resource" = "1" + register "generic.disable_gpio_export_in_crs" = "1" register "hid_desc_reg_offset" = "0x01" device i2c 10 on end end diff --git a/src/mainboard/google/brya/variants/gimble/overridetree.cb b/src/mainboard/google/brya/variants/gimble/overridetree.cb index 4bfe124..3d8f52b 100644 --- a/src/mainboard/google/brya/variants/gimble/overridetree.cb +++ b/src/mainboard/google/brya/variants/gimble/overridetree.cb @@ -217,6 +217,7 @@ "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C6)" register "generic.stop_off_delay_ms" = "1" register "generic.has_power_resource" = "1" + register "generic.disable_gpio_export_in_crs" = "1" register "hid_desc_reg_offset" = "0x01" device i2c 0x15 on end end diff --git a/src/mainboard/google/brya/variants/gimble4es/overridetree.cb b/src/mainboard/google/brya/variants/gimble4es/overridetree.cb index 5d6d4fc..d0d54d7 100644 --- a/src/mainboard/google/brya/variants/gimble4es/overridetree.cb +++ b/src/mainboard/google/brya/variants/gimble4es/overridetree.cb @@ -173,6 +173,7 @@ "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C6)" register "generic.stop_off_delay_ms" = "1" register "generic.has_power_resource" = "1" + register "generic.disable_gpio_export_in_crs" = "1" register "hid_desc_reg_offset" = "0x01" device i2c 0x15 on end end diff --git a/src/mainboard/google/brya/variants/kano/overridetree.cb b/src/mainboard/google/brya/variants/kano/overridetree.cb index a908a7b..a4a5c54 100644 --- a/src/mainboard/google/brya/variants/kano/overridetree.cb +++ b/src/mainboard/google/brya/variants/kano/overridetree.cb @@ -425,6 +425,7 @@ "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C6)" register "generic.stop_off_delay_ms" = "1" register "generic.has_power_resource" = "1" + register "generic.disable_gpio_export_in_crs" = "1" register "hid_desc_reg_offset" = "0x01" device i2c 0x10 on end end diff --git a/src/mainboard/google/brya/variants/primus/overridetree.cb b/src/mainboard/google/brya/variants/primus/overridetree.cb index 58c52a7..b9a1338 100644 --- a/src/mainboard/google/brya/variants/primus/overridetree.cb +++ b/src/mainboard/google/brya/variants/primus/overridetree.cb @@ -232,6 +232,7 @@ "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C6)" register "generic.stop_off_delay_ms" = "1" register "generic.has_power_resource" = "1" + register "generic.disable_gpio_export_in_crs" = "1" register "hid_desc_reg_offset" = "0x01" device i2c 0x10 on end end @@ -247,6 +248,7 @@ "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_C0)" register "generic.enable_delay_ms" = "1" register "generic.has_power_resource" = "1" + register "generic.disable_gpio_export_in_crs" = "1" register "hid_desc_reg_offset" = "0x01" device i2c 0x40 on end end diff --git a/src/mainboard/google/brya/variants/primus4es/overridetree.cb b/src/mainboard/google/brya/variants/primus4es/overridetree.cb index 22d61b0..3cb5cdb 100644 --- a/src/mainboard/google/brya/variants/primus4es/overridetree.cb +++ b/src/mainboard/google/brya/variants/primus4es/overridetree.cb @@ -219,6 +219,7 @@ "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C6)" register "generic.stop_off_delay_ms" = "1" register "generic.has_power_resource" = "1" + register "generic.disable_gpio_export_in_crs" = "1" register "hid_desc_reg_offset" = "0x01" device i2c 0x10 on end end @@ -234,6 +235,7 @@ "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_C0)" register "generic.enable_delay_ms" = "1" register "generic.has_power_resource" = "1" + register "generic.disable_gpio_export_in_crs" = "1" register "hid_desc_reg_offset" = "0x01" device i2c 0x40 on end end diff --git a/src/mainboard/google/brya/variants/redrix/overridetree.cb b/src/mainboard/google/brya/variants/redrix/overridetree.cb index 617ebc5..5aa84bdc 100644 --- a/src/mainboard/google/brya/variants/redrix/overridetree.cb +++ b/src/mainboard/google/brya/variants/redrix/overridetree.cb @@ -386,6 +386,7 @@ "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C6)" register "generic.stop_off_delay_ms" = "1" register "generic.has_power_resource" = "1" + register "generic.disable_gpio_export_in_crs" = "1" register "hid_desc_reg_offset" = "0x01" device i2c 0x15 on end end diff --git a/src/mainboard/google/brya/variants/redrix4es/overridetree.cb b/src/mainboard/google/brya/variants/redrix4es/overridetree.cb index 9531e5e..9ffc6a0 100644 --- a/src/mainboard/google/brya/variants/redrix4es/overridetree.cb +++ b/src/mainboard/google/brya/variants/redrix4es/overridetree.cb @@ -270,6 +270,7 @@ "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C6)" register "generic.stop_off_delay_ms" = "1" register "generic.has_power_resource" = "1" + register "generic.disable_gpio_export_in_crs" = "1" register "hid_desc_reg_offset" = "0x01" device i2c 0x15 on end end diff --git a/src/mainboard/google/brya/variants/taeko/overridetree.cb b/src/mainboard/google/brya/variants/taeko/overridetree.cb index ff4feef..985745f 100644 --- a/src/mainboard/google/brya/variants/taeko/overridetree.cb +++ b/src/mainboard/google/brya/variants/taeko/overridetree.cb @@ -292,6 +292,7 @@ # Parameter T4 >= 1ms register "generic.stop_off_delay_ms" = "1" register "generic.has_power_resource" = "1" + register "generic.disable_gpio_export_in_crs" = "1" register "hid_desc_reg_offset" = "0x01" device i2c 5d on end end @@ -307,6 +308,7 @@ "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_C0)" register "enable_delay_ms" = "1" register "has_power_resource" = "1" + register "disable_gpio_export_in_crs" = "1" device i2c 10 on end end end diff --git a/src/mainboard/google/brya/variants/taeko4es/overridetree.cb b/src/mainboard/google/brya/variants/taeko4es/overridetree.cb index d485662..dbca8ee 100644 --- a/src/mainboard/google/brya/variants/taeko4es/overridetree.cb +++ b/src/mainboard/google/brya/variants/taeko4es/overridetree.cb @@ -292,6 +292,7 @@ # Parameter T4 >= 1ms register "generic.stop_off_delay_ms" = "1" register "generic.has_power_resource" = "1" + register "generic.disable_gpio_export_in_crs" = "1" register "hid_desc_reg_offset" = "0x01" device i2c 5d on end end @@ -307,6 +308,7 @@ "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_C0)" register "enable_delay_ms" = "1" register "has_power_resource" = "1" + register "disable_gpio_export_in_crs" = "1" device i2c 10 on end end end diff --git a/src/mainboard/google/brya/variants/vell/overridetree.cb b/src/mainboard/google/brya/variants/vell/overridetree.cb index a65c859..483dce7 100644 --- a/src/mainboard/google/brya/variants/vell/overridetree.cb +++ b/src/mainboard/google/brya/variants/vell/overridetree.cb @@ -191,6 +191,7 @@ register "stop_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C6)" register "has_power_resource" = "1" + register "disable_gpio_export_in_crs" = "1" device i2c 10 on end end chip drivers/i2c/hid @@ -205,6 +206,7 @@ "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_C0)" register "generic.enable_delay_ms" = "1" register "generic.has_power_resource" = "1" + register "generic.disable_gpio_export_in_crs" = "1" register "hid_desc_reg_offset" = "0x01" device i2c 40 on end end
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Tim Wawrzynczak (Code Review)