diff options
| author | Ren Kuo <ren.kuo@quanta.corp-partner.google.com> | 2021-12-16 14:32:17 +0800 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2021-12-23 14:41:34 +0000 |
| commit | 84cd7c351f1dd1afb08365ec51dad7ed356be848 (patch) | |
| tree | a1751263cd05d3d9b6be0fea88c9568d6ff55650 /src | |
| parent | 4f1378ee47b7eda77964c3fbceba2d6e59da0316 (diff) | |
mb/google/dedede/var/magolor: Add stylus function
Add the stylus field in fw_config.
Update devicetree and gpio to handle stylus pen detection.
BUG=b:167983049
TEST=Build firmware and check behavior as following:
1) Set the fw_config "bit4=1" for pen present:
Wake up from suspend when pen is removed from the garage.
Present the stylus menu when pen is removed from the garage.
2) Set the fw_config "bit4=0" for pen absent:
Wake up and present menu will not work when pen is removed
form the garage.
Change-Id: I62489bb289b18f9aa0823005224eda3ef5218e03
Signed-off-by: Ren Kuo <ren.kuo@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60185
Reviewed-by: Aseda Aboagye <aaboagye@google.com>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src')
4 files changed, 38 insertions, 0 deletions
diff --git a/src/mainboard/google/dedede/variants/baseboard/devicetree.cb b/src/mainboard/google/dedede/variants/baseboard/devicetree.cb index fa1ad8d1e8..1b59ef056c 100644 --- a/src/mainboard/google/dedede/variants/baseboard/devicetree.cb +++ b/src/mainboard/google/dedede/variants/baseboard/devicetree.cb @@ -10,6 +10,10 @@ fw_config option DB_PORTS_1C 7 option DB_PORTS_1A_HDMI_LTE 8 end + field STYLUS 4 + option STYLUS_ABSENT 0 + option STYLUS_PRESENT 1 + end field TABLETMODE 10 option TABLETMODE_DISABLED 0 option TABLETMODE_ENABLED 1 diff --git a/src/mainboard/google/dedede/variants/magolor/Makefile.inc b/src/mainboard/google/dedede/variants/magolor/Makefile.inc index 24c75d1d9a..33333832e8 100644 --- a/src/mainboard/google/dedede/variants/magolor/Makefile.inc +++ b/src/mainboard/google/dedede/variants/magolor/Makefile.inc @@ -1,3 +1,4 @@ ## SPDX-License-Identifier: GPL-2.0-or-later ramstage-$(CONFIG_FW_CONFIG) += variant.c +ramstage-y += gpio.c diff --git a/src/mainboard/google/dedede/variants/magolor/gpio.c b/src/mainboard/google/dedede/variants/magolor/gpio.c new file mode 100644 index 0000000000..ae890851d5 --- /dev/null +++ b/src/mainboard/google/dedede/variants/magolor/gpio.c @@ -0,0 +1,20 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include <baseboard/gpio.h> +#include <baseboard/variants.h> +#include <bootstate.h> +#include <fw_config.h> +#include <commonlib/helpers.h> + +/* Pad configuration of stylus */ +static const struct pad_config stylus_det_pads[] = { + /* C12 : AP_PEN_DET_ODL (external pull-high) */ + PAD_CFG_GPI_GPIO_DRIVER(GPP_C12, NONE, DEEP), +}; + +static void fw_config_handle(void *unused) +{ + if (fw_config_probe(FW_CONFIG(STYLUS, STYLUS_PRESENT))) + gpio_configure_pads(stylus_det_pads, ARRAY_SIZE(stylus_det_pads)); +} +BOOT_STATE_INIT_ENTRY(BS_DEV_ENABLE, BS_ON_ENTRY, fw_config_handle, NULL); diff --git a/src/mainboard/google/dedede/variants/magolor/overridetree.cb b/src/mainboard/google/dedede/variants/magolor/overridetree.cb index e5d75b1f9b..66fc4ea02f 100644 --- a/src/mainboard/google/dedede/variants/magolor/overridetree.cb +++ b/src/mainboard/google/dedede/variants/magolor/overridetree.cb @@ -188,6 +188,19 @@ 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 + probe STYLUS STYLUS_PRESENT + end + end chip drivers/i2c/hid register "generic.hid" = ""ELAN6915"" register "generic.desc" = ""ELAN Touchscreen"" |