mb/google/dedede: Enable trackpad support
1. Configure trackpad interrupt GPIO. 2. Set i2c0 configuration. 3. Add trackpad ACPI support. TEST= Verify trackpad working. Verify I2C SCL frequency below 400Khz on trackpad operation. Change-Id: I52c578aef591f5be90fb709bab4c8342ea9729e6 Signed-off-by: Pandya, Varshit B <varshit.b.pandya@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39236 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
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committed by
Patrick Georgi
parent
d1f3022ebf
commit
4f8b00602c
@@ -55,7 +55,7 @@ static const struct pad_config gpio_table[] = {
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/* B2 : PROCHOT_ODL */
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PAD_NC(GPP_B2, NONE),
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/* B3 : TRACKPAD_INT_ODL */
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PAD_NC(GPP_B3, NONE),
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PAD_CFG_GPI_IRQ_WAKE(GPP_B3, NONE, PLTRST, LEVEL, INVERT),
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/* B4 : H1_PCH_INT_ODL */
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PAD_CFG_GPI_APIC(GPP_B4, NONE, PLTRST, LEVEL, INVERT),
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/* B5 : PCIE_CLKREQ0_N */
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@@ -1,3 +1,53 @@
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chip soc/intel/tigerlake
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device domain 0 on end
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# Intel Common SoC Config
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#+-------------------+---------------------------+
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#| Field | Value |
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#+-------------------+---------------------------+
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#| GSPI0 | cr50 TPM. Early init is |
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#| | required to set up a BAR |
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#| | for TPM communication |
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#| | before memory is up |
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#| I2C0 | Trackpad |
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#| I2C1 | Digitizer |
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#| I2C2 | Touchscreen |
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#| I2C3 | Camera |
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#| I2C4 | Audio |
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#+-------------------+---------------------------+
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register "common_soc_config" = "{
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.gspi[0] = {
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.speed_mhz = 1,
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.early_init = 1,
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},
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.i2c[0] = {
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.speed = I2C_SPEED_FAST,
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.rise_time_ns = 66,
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.fall_time_ns = 90,
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.data_hold_time_ns = 350,
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},
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.i2c[1] = {
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.speed = I2C_SPEED_FAST,
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},
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.i2c[2] = {
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.speed = I2C_SPEED_FAST,
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},
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.i2c[3] = {
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.speed = I2C_SPEED_FAST,
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},
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.i2c[4] = {
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.speed = I2C_SPEED_FAST,
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},
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}"
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device domain 0 on
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device pci 15.0 on
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chip drivers/i2c/generic
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register "hid" = ""ELAN0000""
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register "desc" = ""ELAN Touchpad""
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register "irq" = "ACPI_IRQ_WAKE_EDGE_LOW(GPP_B3_IRQ)"
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register "wake" = "GPE0_DW0_03"
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register "probed" = "1"
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device i2c 15 on end
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end
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end #I2C 0
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end
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end
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