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| author | Eric Lai <ericr_lai@compal.corp-partner.google.com> | 2019-04-16 14:30:49 +0800 |
|---|---|---|
| committer | Duncan Laurie <dlaurie@chromium.org> | 2019-04-24 15:52:40 +0000 |
| commit | 1a1fe6e3841f861d00aec62a2c0a4d6ee3e0d6c3 (patch) | |
| tree | 8c194c58800af21ca9b1f5df6e34e9a91123b3a6 /src | |
| parent | 389f9277518e93c24741581da58f5d3809377357 (diff) | |
| download | coreboot-1a1fe6e3841f861d00aec62a2c0a4d6ee3e0d6c3.tar.xz | |
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>
Diffstat (limited to 'src')
| -rw-r--r-- | src/mainboard/google/sarien/variants/sarien/devicetree.cb | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/src/mainboard/google/sarien/variants/sarien/devicetree.cb b/src/mainboard/google/sarien/variants/sarien/devicetree.cb index d5e8afbc34..27c0913c6f 100644 --- a/src/mainboard/google/sarien/variants/sarien/devicetree.cb +++ b/src/mainboard/google/sarien/variants/sarien/devicetree.cb @@ -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" |