mb/google/rex/var/rex0: Add entries for SAR Proximity Sensors

This patch adds ACPI entries for SAR Proximity Sensors as below

SAR1 Sensor:
  - SAR1_INT_L : GPP_E00
  - I2C5 7-bit address 0x28

SAR2 Sensor:
  - SAR2_INT_L : GPP_E08
  - I2C 7-bit address 0x2c

BUG=b:297977526
TEST=Able to build and boot google/rex.

w/o this patch:

Total 6 devices are listed below:

> ls -lt /sys/bus/iio/devices/iio:device*

/sys/bus/iio/devices/iio:device5 -> ../../../devices/LNXSYSTM:00/
                        LNXSYBUS:00/PNP0A08:00/device:07/
/sys/bus/iio/devices/iio:device0 -> ../../../devices/pci0000:00/
                        0000:00:1f.0/PNP0C09:00/GOOG0004:0
/sys/bus/iio/devices/iio:device2 -> ../../../devices/pci0000:00/
                        0000:00:1f.0/PNP0C09:00/GOOG0004:0
/sys/bus/iio/devices/iio:device4 -> ../../../devices/pci0000:00/
                        0000:00:1f.0/PNP0C09:00/GOOG0004:0
/sys/bus/iio/devices/iio:device1 -> ../../../devices/pci0000:00/
                        0000:00:1f.0/PNP0C09:00/GOOG0004:0
/sys/bus/iio/devices/iio:device3 -> ../../../devices/pci0000:00/
                        0000:00:1f.0/PNP0C09:00/GOOG0004:0

w/ this patch:

Total 8 devices are listed below:

> ls -lt /sys/bus/iio/devices/iio:device*

/sys/bus/iio/devices/iio:device6 -> ../../../devices/pci0000:00/
                        0000:00:19.1/i2c_designware.4/i2c-
/sys/bus/iio/devices/iio:device5 -> ../../../devices/LNXSYSTM:00/
                        LNXSYBUS:00/PNP0A08:00/device:07/
/sys/bus/iio/devices/iio:device7 -> ../../../devices/pci0000:00/
                        0000:00:19.1/i2c_designware.4/i2c-
/sys/bus/iio/devices/iio:device0 -> ../../../devices/pci0000:00/
                        0000:00:1f.0/PNP0C09:00/GOOG0004:0
/sys/bus/iio/devices/iio:device2 -> ../../../devices/pci0000:00/
                        0000:00:1f.0/PNP0C09:00/GOOG0004:0
/sys/bus/iio/devices/iio:device4 -> ../../../devices/pci0000:00/
                        0000:00:1f.0/PNP0C09:00/GOOG0004:0
/sys/bus/iio/devices/iio:device1 -> ../../../devices/pci0000:00/
                        0000:00:1f.0/PNP0C09:00/GOOG0004:0
/sys/bus/iio/devices/iio:device3 -> ../../../devices/pci0000:00/
                        0000:00:1f.0/PNP0C09:00/GOOG0004:0

Change-Id: I0a518d58915f9f4dbe58a45c4dc5875abbfda135
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78045
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Ivy Jian <ivy.jian@quanta.corp-partner.google.com>

2 files changed, 98 insertions, 0 deletions

diff --git a/src/mainboard/google/rex/Kconfig b/src/mainboard/google/rex/Kconfig
index edec6ac864..3d246681f8 100644
--- a/src/mainboard/google/rex/Kconfig
+++ b/src/mainboard/google/rex/Kconfig
@@ -52,6 +52,8 @@ config BOARD_GOOGLE_MODEL_REX
 	select CHROMEOS_WIFI_SAR if CHROMEOS
 	select DRIVERS_GENERIC_MAX98357A
 	select DRIVERS_GENESYSLOGIC_GL9755
+	select DRIVERS_I2C_SX9324
+	select DRIVERS_I2C_SX9324_SUPPORT_LEGACY_LINUX_DRIVER
 	select DRIVERS_INTEL_ISH
 	select DRIVERS_INTEL_SOUNDWIRE
 	select DRIVERS_NXP_UWB_SR1XX
diff --git a/src/mainboard/google/rex/variants/rex0/overridetree.cb b/src/mainboard/google/rex/variants/rex0/overridetree.cb
index c3c4372668..d92dc24088 100644
--- a/src/mainboard/google/rex/variants/rex0/overridetree.cb
+++ b/src/mainboard/google/rex/variants/rex0/overridetree.cb
@@ -691,6 +691,102 @@ chip soc/intel/meteorlake
 					probe UFC UFC_MIPI
 				end
 			end
+			chip drivers/i2c/sx9324
+				register "desc" = ""SAR1 Proximity Sensor""
+				register "irq" = "ACPI_IRQ_LEVEL_LOW(GPP_E00_IRQ)"
+				register "speed" = "I2C_SPEED_FAST"
+				register "uid" = "1"
+				register "reg_gnrl_ctrl0" = "0x16"
+				register "reg_gnrl_ctrl1" = "0x21"
+				register "reg_afe_ctrl0" = "0x00"
+				register "reg_afe_ctrl1" = "0x10"
+				register "reg_afe_ctrl2" = "0x00"
+				register "reg_afe_ctrl3" = "0x00"
+				register "reg_afe_ctrl4" = "0x07"
+				register "reg_afe_ctrl5" = "0x00"
+				register "reg_afe_ctrl6" = "0x00"
+				register "reg_afe_ctrl7" = "0x07"
+				register "reg_afe_ctrl8" = "0x12"
+				register "reg_afe_ctrl9" = "0x0f"
+				register "reg_prox_ctrl0" = "0x12"
+				register "reg_prox_ctrl1" = "0x12"
+				register "reg_prox_ctrl2" = "0x90"
+				register "reg_prox_ctrl3" = "0x60"
+				register "reg_prox_ctrl4" = "0x0c"
+				register "reg_prox_ctrl5" = "0x12"
+				register "reg_prox_ctrl6" = "0x3c"
+				register "reg_prox_ctrl7" = "0x58"
+				register "reg_adv_ctrl0" = "0x00"
+				register "reg_adv_ctrl1" = "0x00"
+				register "reg_adv_ctrl2" = "0x00"
+				register "reg_adv_ctrl3" = "0x00"
+				register "reg_adv_ctrl4" = "0x00"
+				register "reg_adv_ctrl5" = "0x05"
+				register "reg_adv_ctrl6" = "0x00"
+				register "reg_adv_ctrl7" = "0x00"
+				register "reg_adv_ctrl8" = "0x00"
+				register "reg_adv_ctrl9" = "0x00"
+				register "reg_adv_ctrl10" = "0x5c"
+				register "reg_adv_ctrl11" = "0x52"
+				register "reg_adv_ctrl12" = "0xb5"
+				register "reg_adv_ctrl13" = "0x00"
+				register "reg_adv_ctrl14" = "0x80"
+				register "reg_adv_ctrl15" = "0x0c"
+				register "reg_adv_ctrl16" = "0x38"
+				register "reg_adv_ctrl17" = "0x56"
+				register "reg_adv_ctrl18" = "0x33"
+				register "reg_adv_ctrl19" = "0xf0"
+				register "reg_adv_ctrl20" = "0xf0"
+				device i2c 28 on end
+			end
+			chip drivers/i2c/sx9324
+				register "desc" = ""SAR2 Proximity Sensor""
+				register "irq" = "ACPI_IRQ_LEVEL_LOW(GPP_E08_IRQ)"
+				register "speed" = "I2C_SPEED_FAST"
+				register "uid" = "2"
+				register "reg_gnrl_ctrl0" = "0x16"
+				register "reg_gnrl_ctrl1" = "0x21"
+				register "reg_afe_ctrl0" = "0x00"
+				register "reg_afe_ctrl1" = "0x10"
+				register "reg_afe_ctrl2" = "0x00"
+				register "reg_afe_ctrl3" = "0x00"
+				register "reg_afe_ctrl4" = "0x07"
+				register "reg_afe_ctrl5" = "0x00"
+				register "reg_afe_ctrl6" = "0x00"
+				register "reg_afe_ctrl7" = "0x07"
+				register "reg_afe_ctrl8" = "0x12"
+				register "reg_afe_ctrl9" = "0x0f"
+				register "reg_prox_ctrl0" = "0x12"
+				register "reg_prox_ctrl1" = "0x12"
+				register "reg_prox_ctrl2" = "0x90"
+				register "reg_prox_ctrl3" = "0x60"
+				register "reg_prox_ctrl4" = "0x0c"
+				register "reg_prox_ctrl5" = "0x12"
+				register "reg_prox_ctrl6" = "0x3c"
+				register "reg_prox_ctrl7" = "0x58"
+				register "reg_adv_ctrl0" = "0x00"
+				register "reg_adv_ctrl1" = "0x00"
+				register "reg_adv_ctrl2" = "0x00"
+				register "reg_adv_ctrl3" = "0x00"
+				register "reg_adv_ctrl4" = "0x00"
+				register "reg_adv_ctrl5" = "0x05"
+				register "reg_adv_ctrl6" = "0x00"
+				register "reg_adv_ctrl7" = "0x00"
+				register "reg_adv_ctrl8" = "0x00"
+				register "reg_adv_ctrl9" = "0x00"
+				register "reg_adv_ctrl10" = "0x5c"
+				register "reg_adv_ctrl11" = "0x52"
+				register "reg_adv_ctrl12" = "0xb5"
+				register "reg_adv_ctrl13" = "0x00"
+				register "reg_adv_ctrl14" = "0x80"
+				register "reg_adv_ctrl15" = "0x0c"
+				register "reg_adv_ctrl16" = "0x38"
+				register "reg_adv_ctrl17" = "0x56"
+				register "reg_adv_ctrl18" = "0x33"
+				register "reg_adv_ctrl19" = "0xf0"
+				register "reg_adv_ctrl20" = "0xf0"
+				device i2c 2C on end
+			end
 		end #I2C5
 		device ref pcie_rp5 on
 			probe WIFI WIFI_PCIE