diff options
| author | Wisley Chen <wisley.chen@quantatw.com> | 2021-01-15 13:48:38 +0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2021-01-25 09:11:57 +0000 |
| commit | 5e6e5c11c7841d5a1df8e7a33466df1a8a2a6314 (patch) | |
| tree | 6b4c0222825641759968347977efcd9774f92459 /src/mainboard/google | |
| parent | 8130959d011023077738bd9d6b6b65ab0d7f5233 (diff) | |
mb/google/dedede/var/drawcia: Add support to handle pen detection
For board version 6 afterward, it will have external pull-up for
GPP_C12, and remove internal pull-up.
BUG=b:177618684
TEST=emerge-dedede coreboot, check evtest if SW_PEN_INSERTED event
(value:1/0) when insert/eject pen, and eject pen to wake system from s0ix
Signed-off-by: Wisley Chen <wisley.chen@quantatw.com>
Change-Id: I503873afb48384168dcd8a822c7246655898356e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49469
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Henry Sun <henrysun@google.com>
Diffstat (limited to 'src/mainboard/google')
3 files changed, 48 insertions, 0 deletions
diff --git a/src/mainboard/google/dedede/variants/drawcia/Makefile.inc b/src/mainboard/google/dedede/variants/drawcia/Makefile.inc index 24c75d1d9a..04eb9a4877 100644 --- a/src/mainboard/google/dedede/variants/drawcia/Makefile.inc +++ b/src/mainboard/google/dedede/variants/drawcia/Makefile.inc @@ -1,3 +1,4 @@ ## SPDX-License-Identifier: GPL-2.0-or-later +ramstage-y += gpio.c ramstage-$(CONFIG_FW_CONFIG) += variant.c diff --git a/src/mainboard/google/dedede/variants/drawcia/gpio.c b/src/mainboard/google/dedede/variants/drawcia/gpio.c new file mode 100644 index 0000000000..a91a94ee55 --- /dev/null +++ b/src/mainboard/google/dedede/variants/drawcia/gpio.c @@ -0,0 +1,36 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include <baseboard/gpio.h> +#include <baseboard/variants.h> +#include <fw_config.h> +#include <console/console.h> +#include <ec/google/chromeec/ec.h> + +/* Pad configuration in ramstage*/ +static const struct pad_config pre_board6_gpio_table[] = { + + /* C12 : AP_PEN_DET_ODL */ + PAD_CFG_GPI_GPIO_DRIVER(GPP_C12, UP_20K, DEEP), +}; + +/* bid6: Pad configuration for board version 6 afterward in ramstage*/ +static const struct pad_config board6_gpio_table[] = { + + /* C12 : AP_PEN_DET_ODL has an external pull-up and hence no pad termination.*/ + PAD_CFG_GPI_GPIO_DRIVER(GPP_C12, NONE, DEEP), +}; + +const struct pad_config *variant_override_gpio_table(size_t *num) +{ + uint32_t board_version; + *num = ARRAY_SIZE(pre_board6_gpio_table); + + if (!google_chromeec_cbi_get_board_version(&board_version)) { + if (board_version >= 6) { + *num = ARRAY_SIZE(board6_gpio_table); + return board6_gpio_table; + } + } + + return pre_board6_gpio_table; +} diff --git a/src/mainboard/google/dedede/variants/drawcia/overridetree.cb b/src/mainboard/google/dedede/variants/drawcia/overridetree.cb index 59593432fe..fbc6f0b8a5 100644 --- a/src/mainboard/google/dedede/variants/drawcia/overridetree.cb +++ b/src/mainboard/google/dedede/variants/drawcia/overridetree.cb @@ -162,6 +162,17 @@ chip soc/intel/jasperlake end end #I2C 0 device pci 15.2 on + chip drivers/generic/gpio_keys + register "name" = ""PENH"" + register "gpio" = "ACPI_GPIO_INPUT_ACTIVE_LOW(GPP_C12)" + register "key.wakeup_route" = "WAKEUP_ROUTE_GPIO_IRQ" + register "key.wakeup_event_action" = "EV_ACT_DEASSERTED" + register "key.dev_name" = ""EJCT"" + register "key.linux_code" = "SW_PEN_INSERTED" + register "key.linux_input_type" = "EV_SW" + register "key.label" = ""pen_eject"" + device generic 0 on end + end chip drivers/i2c/generic register "hid" = ""ELAN0001"" register "desc" = ""ELAN Touchscreen"" |