sravan/system76-coreboot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

mb/google/dedede/var/awasuki: Enable ELAN touchscreen with fw_config

Browse Source 
1. Change driver form i2c/hid to i2c/generic.
2. Add fw_config for touchscreen.

BUG=b:351968527
TEST=ectool cbi set 6 0x0x10200a0;
     touchscreen functions normally;

Change-Id: Ifd6330be8924d4873f0efab3ce404168a62099eb
Signed-off-by: Weimin Wu <wuweimin@huaqin.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/83704
Reviewed-by: zhongtian wu <wuzhongtian@huaqin.corp-partner.google.com>
Reviewed-by: Eric Lai <ericllai@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Weimin Wu 2024-07-30 17:31:46 +08:00 committed by Felix Held
parent 47bc698d36
commit 1fdeabe507
3 changed files with 47 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
src/mainboard/google/dedede/variants/awasuki/overridetree.cb
View File

@ -181,18 +181,24 @@ chip soc/intel/jasperlake
end # I2C 0
device pci 15.1 off end # I2C 1
device pci 15.2 on
chip drivers/i2c/hid
register "generic.hid" = ""ELAN9008""
register "generic.desc" = ""ELAN Touchscreen""
register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_D4_IRQ)"
register "generic.detect" = "1"
register "generic.reset_gpio" =
probe TOUCHSCREEN TOUCHSCREEN_PRESENT
chip drivers/i2c/generic
register "hid" = ""ELAN0001""
register "desc" = ""ELAN Touchscreen""
register "irq" = "ACPI_IRQ_LEVEL_LOW(GPP_D4_IRQ)"
register "detect" = "1"
register "reset_gpio" =
"ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_D5)"
register "generic.enable_gpio" =
register "reset_delay_ms" = "25"
register "reset_off_delay_ms" = "8"
register "stop_gpio" =
"ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_A11)"
register "stop_delay_ms" = "280"
register "stop_off_delay_ms" = "2"
register "enable_gpio" =
"ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_D6)"
register "generic.enable_delay_ms" = "7"
register "generic.has_power_resource" = "1"
register "hid_desc_reg_offset" = "0x01"
register "enable_delay_ms" = "7"
register "has_power_resource" = "1"
device i2c 10 on end
end
end # I2C 2

29
src/mainboard/google/dedede/variants/awasuki/ramstage.c
View File

@ -3,18 +3,35 @@
#include <baseboard/variants.h>
#include <fw_config.h>
#include <soc/soc_chip.h>
#include <soc/gpio.h>
static void ext_vr_update(void)
static const struct pad_config ts_disable_pad[] = {
/* A11 : TOUCH_RPT_EN */
PAD_NC(GPP_A11, NONE),
/* D4 : TOUCH_INT_ODL */
PAD_NC(GPP_D4, NONE),
/* D5 : TOUCH_RESET_L */
PAD_NC(GPP_D5, NONE),
/* D6 : EN_PP3300_TOUCH_S0 */
PAD_NC(GPP_D6, NONE),
/* H4 : AP_I2C_TS_SDA */
PAD_NC(GPP_H4, NONE),
/* H5 : AP_I2C_TS_SCL */
PAD_NC(GPP_H5, NONE),
};
void variant_devtree_update(void)
{
struct soc_intel_jasperlake_config *cfg = config_of_soc();
if (fw_config_probe(FW_CONFIG(EXT_VR, EXT_VR_ABSENT))) {
printk(BIOS_INFO, "Device config for EXT_VR_ABSENT.\n");
cfg->disable_external_bypass_vr = 1;
}
}
void variant_devtree_update(void)
{
ext_vr_update();
if (!fw_config_probe(FW_CONFIG(TOUCHSCREEN, TOUCHSCREEN_PRESENT))) {
cfg->SerialIoI2cMode[PchSerialIoIndexI2C2] = PchSerialIoDisabled;
gpio_configure_pads(ts_disable_pad, ARRAY_SIZE(ts_disable_pad));
}
}

12
src/mainboard/google/dedede/variants/baseboard/devicetree.cb
View File

@ -15,10 +15,18 @@ fw_config
option STYLUS_ABSENT 0
option STYLUS_PRESENT 1
end
field TOUCHSCREEN 5
option TOUCHSCREEN_ABSENT 0
option TOUCHSCREEN_PRESENT 1
end
field TABLETMODE 10
option TABLETMODE_DISABLED 0
option TABLETMODE_ENABLED 1
end
field LTE 11
option LTE_ABSENT 0
option LTE_PRESENT 1
end
field AUDIO_AMP 14 16
option UNPROVISIONED 0
option MAX98360 1
@ -26,10 +34,6 @@ fw_config
option RT1015P_AUTO 3
option ALC5650 4
end
field LTE 11
option LTE_ABSENT 0
option LTE_PRESENT 1
end
field EXT_VR 18
option EXT_VR_PRESENT 0
option EXT_VR_ABSENT 1