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mb/system76: Configure I2C HID IRQs as level triggered 

Per Microsoft's spec for HID over I2C [1], interrupts must be level
triggered. Switch GPIOs and the devicetree config to conform to this.

Touchpad and multitouch gestures were already working, so no behavior
changes are observed in normal use.

[1]: http://download.microsoft.com/download/7/d/d/7dd44bb7-2a7a-4505-ac1c-7227d3d96d5b/hid-over-i2c-protocol-spec-v1-0.docx

Change-Id: I485e616ae00e10bc3620ff3fa1fc1e903653c5cc
Signed-off-by: Tim Crawford <tcrawford@system76.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61343
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-by: Felix Singer <felixsinger@posteo.net>
This commit is contained in:
Tim Crawford 2022-01-24 09:04:26 -07:00 committed by Felix Held
parent fe99cbb378
commit aa8b1f8b38
12 changed files with 12 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/mainboard/system76/addw1/variants/addw1/gpio.c
View File

@ -49,7 +49,7 @@ static const struct pad_config gpio_table[] = {
PAD_NC(GPP_B1, NONE),
PAD_NC(GPP_B2, NONE),
// PCH_GPP_B3 (touchpad interrupt)
PAD_CFG_GPI_APIC(GPP_B3, NONE, PLTRST, EDGE_SINGLE, INVERT),
PAD_CFG_GPI_APIC_LOW(GPP_B3, NONE, PLTRST),
PAD_NC(GPP_B4, NONE),
PAD_CFG_NF(GPP_B5, NONE, DEEP, NF1), // TBT_CLKREQ#
PAD_NC(GPP_B6, NONE),

2
src/mainboard/system76/addw1/variants/addw1/overridetree.cb
View File

@ -11,7 +11,7 @@ chip soc/intel/cannonlake
chip drivers/i2c/hid
register "generic.hid" = ""PNP0C50""
register "generic.desc" = ""Synaptics Touchpad""
register "generic.irq" = "ACPI_IRQ_EDGE_LOW(GPP_B3_IRQ)"
register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_B3_IRQ)"
register "generic.probed" = "1"
register "hid_desc_reg_offset" = "0x20"
device i2c 2c on end

2
src/mainboard/system76/addw1/variants/addw2/gpio.c
View File

@ -33,7 +33,7 @@ static const struct pad_config gpio_table[] = {
PAD_NC(GPP_A11, UP_20K),
PAD_NC(GPP_A12, NONE),
PAD_CFG_NF(GPP_A13, NONE, DEEP, NF1), // SUSWARN#
PAD_CFG_GPI_APIC(GPP_A14, NONE, PLTRST, EDGE_SINGLE, INVERT), // TCHPD_INT#
PAD_CFG_GPI_APIC_LOW(GPP_A14, NONE, PLTRST), // TCHPD_INT#
PAD_CFG_NF(GPP_A15, UP_20K, DEEP, NF1), // SUS_PW_ACK#
PAD_NC(GPP_A16, DN_20K),
PAD_CFG_GPI(GPP_A17, NONE, DEEP), // AMP_TYPE_DET

2
src/mainboard/system76/addw1/variants/addw2/overridetree.cb
View File

@ -12,7 +12,7 @@ chip soc/intel/cannonlake
chip drivers/i2c/hid
register "generic.hid" = ""PNP0C50""
register "generic.desc" = ""Synaptics Touchpad""
register "generic.irq" = "ACPI_IRQ_EDGE_LOW(GPP_A14_IRQ)"
register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_A14_IRQ)"
register "generic.probed" = "1"
register "hid_desc_reg_offset" = "0x20"
device i2c 2c on end

2
src/mainboard/system76/bonw14/devicetree.cb
View File

@ -105,7 +105,7 @@ chip soc/intel/cannonlake
chip drivers/i2c/hid
register "generic.hid" = ""PNP0C50""
register "generic.desc" = ""Synaptics Touchpad""
register "generic.irq" = "ACPI_IRQ_EDGE_LOW(GPP_E7_IRQ)"
register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_E7_IRQ)"
register "generic.probed" = "1"
register "hid_desc_reg_offset" = "0x20"
device i2c 2c on end

2
src/mainboard/system76/cml-u/gpio.c
View File

@ -95,7 +95,7 @@ static const struct pad_config gpio_table[] = {
PAD_CFG_NF(GPP_C20, NONE, DEEP, NF1), // UART2_RXD
PAD_CFG_NF(GPP_C21, NONE, DEEP, NF1), // UART2_TXD
PAD_NC(GPP_C22, NONE),
PAD_CFG_GPI_APIC_EDGE_LOW(GPP_C23, NONE, PLTRST), // NC on galp4, TP_ATTN# on darp6
PAD_CFG_GPI_APIC_LOW(GPP_C23, NONE, PLTRST), // NC on galp4, TP_ATTN# on darp6
/* ------- GPIO Group D ------- */
PAD_NC(GPP_D0, NONE),

2
src/mainboard/system76/cml-u/variants/darp6/overridetree.cb
View File

@ -5,7 +5,7 @@ chip soc/intel/cannonlake
chip drivers/i2c/hid
register "generic.hid" = ""PNP0C50""
register "generic.desc" = ""Synaptics Touchpad""
register "generic.irq" = "ACPI_IRQ_EDGE_LOW(GPP_C23_IRQ)"
register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_C23_IRQ)"
register "generic.probed" = "1"
register "hid_desc_reg_offset" = "0x20"
device i2c 2c on end

2
src/mainboard/system76/gaze15/variants/gaze14/overridetree.cb
View File

@ -13,7 +13,7 @@ chip soc/intel/cannonlake
chip drivers/i2c/hid
register "generic.hid" = ""PNP0C50""
register "generic.desc" = ""Synaptics Touchpad""
register "generic.irq" = "ACPI_IRQ_EDGE_LOW(GPP_E7_IRQ)"
register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_E7_IRQ)"
register "generic.probed" = "1"
register "hid_desc_reg_offset" = "0x20"
device i2c 2c on end

2
src/mainboard/system76/oryp6/devicetree.cb
View File

@ -101,7 +101,7 @@ chip soc/intel/cannonlake
chip drivers/i2c/hid
register "generic.hid" = ""PNP0C50""
register "generic.desc" = ""Synaptics Touchpad""
register "generic.irq" = "ACPI_IRQ_EDGE_LOW(GPP_E7_IRQ)"
register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_E7_IRQ)"
register "generic.probed" = "1"
register "hid_desc_reg_offset" = "0x20"
device i2c 2c on end

2
src/mainboard/system76/oryp6/variants/oryp6/gpio.c
View File

@ -133,7 +133,7 @@ static const struct pad_config gpio_table[] = {
PAD_NC(GPP_E4, NONE),
PAD_CFG_NF(GPP_E5, NONE, DEEP, NF1), // M2_P1_SATA_DEVSLP
_PAD_CFG_STRUCT(GPP_E6, 0x82040100, 0x0000), // SMI#
PAD_CFG_GPI_APIC_EDGE_LOW(GPP_E7, NONE, PLTRST), // TP_ATTN#
PAD_CFG_GPI_APIC_LOW(GPP_E7, NONE, PLTRST), // TP_ATTN#
PAD_CFG_NF(GPP_E8, NONE, DEEP, NF1), // PCH_SATAHDD_LED#
PAD_NC(GPP_E9, NONE), // USB_OC0# (test point)
PAD_NC(GPP_E10, NONE), // USB_OC1# (test point)

2
src/mainboard/system76/whl-u/gpio.c
View File

@ -95,7 +95,7 @@ static const struct pad_config gpio_table[] = {
//PAD_CFG_NF(GPP_C20, NONE, DEEP, NF1), // UART2_RXD
//PAD_CFG_NF(GPP_C21, NONE, DEEP, NF1), // UART2_TXD
PAD_NC(GPP_C22, NONE),
PAD_CFG_GPI_APIC_EDGE_LOW(GPP_C23, NONE, PLTRST), // NC on galp3-c, TP_ATTN# on darp5
PAD_CFG_GPI_APIC_LOW(GPP_C23, NONE, PLTRST), // NC on galp3-c, TP_ATTN# on darp5
/* ------- GPIO Group GPP_D ------- */
PAD_NC(GPP_D0, NONE),

2
src/mainboard/system76/whl-u/variants/darp5/overridetree.cb
View File

@ -5,7 +5,7 @@ chip soc/intel/cannonlake
chip drivers/i2c/hid
register "generic.hid" = ""PNP0C50""
register "generic.desc" = ""Synaptics Touchpad""
register "generic.irq" = "ACPI_IRQ_EDGE_LOW(GPP_C23_IRQ)"
register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_C23_IRQ)"
register "generic.probed" = "1"
register "hid_desc_reg_offset" = "0x20"
device i2c 2c on end