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path: root/src/mainboard/google/zork/variants/dirinboz/gpio.c
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2020-08-31mb/google/zork: update GPIO config for dirinbozKevin Chiu
dirinboz does not support stylus, config AGPIO4/5 to NC to prevent unexpected wake event for s3. BUG=none BRANCH=zork TEST=emerge-zork coreboot chromeos-bootimage Change-Id: I3cfdeb326c3d3775148b2a00732c7d848dab35cb Signed-off-by: Kevin Chiu <kevin.chiu@quantatw.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/44894 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-08-06mb/google/zork: Configure GPIO_89 as PAD_NCFurquan Shaikh
GPIO_89 was marked as EN_DEV_BEEP_L in pre-v3.6 schematics, but it was never really used on any of the zork variants. Starting with v3.6, GPIO_89 is left unused in schematics. This change configures GPIO_89 as PAD_NC in baseboard GPIO table. Since EN_DEV_BEEP_L still needs to be driven high to allow speakers to work, GPIO_89 is configured as PAD_GPO driven high on pre-v3.6 schematics. BUG=b:62108046 Change-Id: I026cd6cb598667ce6e115c3ec9357a6a56051d39 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/44190 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-08-06mb/google/zork: Add touchscreen power controlFurquan Shaikh
This change adds support for touchscreen power control using: * GPIO_90 for trembyle based boards * GPIO_32 for dalboz based boards By default, baseboard tables configure these GPIOs as PAD_GPO driven low and override trees expose these pads as enable_gpio to be used by ACPI power resource. In order to support pre-v3.6 boards, override tables configure these pads as PAD_NC and drop the enable_gpio setting from device tree based on board version. BUG=b:161935640, b:162747210 Change-Id: Iba5e36b65b44ea11613b4d5fc8f13ce6433f83ab Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/44193 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-08-06mb/google/zork: Switch USI_RESET to active low polarity for v3.6+Furquan Shaikh
v3.6 of reference schematics have switched the polarity of reset signal to touchscreen controller from active high to active low. This change updates the default configuration in baseboard gpio tables to set the reset GPIO to output low and override tables in variants to set the reset GPIO to output high. Additionally, devicetree by default exposes ACTIVE_LOW configuration for reset GPIO. In order to support pre-v3.6 boards, reset GPIO is updated to ACTIVE_HIGH based on board version. BUG=b:161937506 Change-Id: I092f274d8eb1920a1cd6d3eccbe8f26b0b28928a Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/44192 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>