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mb/google/sarien: Add power control for Sarien touchscreen 

This change will save touchscreen power leakage 2-3mW in S0iX and
increase T2 display time delay to meet display panel requirement.

BUG=b:129899315
TEST= Measure touchscreen power from Sarien during S0iX

Signed-off-by: Eric Lai <ericr_lai@compal.corp-partner.google.com>
Change-Id: I48419132ba734f20ad5cf484c2dda609570a6dd0
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32330
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Eric Lai 2019-04-16 14:30:49 +08:00 committed by Duncan Laurie
parent 389f927751
commit 1a1fe6e384
1 changed files with 9 additions and 5 deletions
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14
src/mainboard/google/sarien/variants/sarien/devicetree.cb
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@ -310,10 +310,12 @@ chip soc/intel/cannonlake
register "generic.desc" = ""ELAN Touchscreen""
register "generic.irq" = "ACPI_IRQ_EDGE_LOW(GPP_C23_IRQ)"
register "generic.probed" = "1"
register "generic.reset_gpio" =
"ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_E7)"
register "generic.reset_delay_ms" = "10"
register "generic.enable_gpio" =
"ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_E7)"
register "generic.enable_delay_ms" = "5"
register "generic.enable_off_delay_ms" = "100"
"ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_B21)"
register "generic.enable_delay_ms" = "55"
register "generic.has_power_resource" = "1"
register "hid_desc_reg_offset" = "0x01"
register "generic.device_present_gpio" = "GPP_B4"
@ -325,8 +327,10 @@ chip soc/intel/cannonlake
register "desc" = ""Melfas Touchscreen""
register "irq" = "ACPI_IRQ_EDGE_LOW(GPP_C23_IRQ)"
register "probed" = "1"
register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_E7)"
register "enable_delay_ms" = "5"
register "reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_E7)"
register "reset_delay_ms" = "10"
register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_B21)"
register "enable_delay_ms" = "55"
register "has_power_resource" = "1"
register "device_present_gpio" = "GPP_B4"
register "device_present_gpio_invert" = "1"