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mainboard/google/poppy: Configure GPIO.1 and GPIO.2 for daisy chain mode 

Configure GPIO.1 and GPIO.2 as sensor SDA and SCL respectively
for TPS68470 PMIC in daisy chain mode.
* GPIO.1: Sensor SDA in daisy chain mode.
* GPIO.2: Sensor SCL in daisy chain mode.

BUG=b:38326541
BRANCH=none
TEST=Build and boot soraka. Dump and verify that the generated DSDT table
has the required entries. Verified that sensor probe is successful.

Change-Id: I7f9686427772a33c06e4cdaafee9b0349d700639
Signed-off-by: V Sowmya <v.sowmya@intel.com>
Reviewed-on: https://review.coreboot.org/20665
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Rajmohan Mani <rajmohan.mani@intel.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
This commit is contained in:
V Sowmya 2017-07-20 16:15:56 +05:30 committed by Martin Roth
parent f19ee0d737
commit 01ea8f1fcc
1 changed files with 56 additions and 0 deletions
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56
src/mainboard/google/poppy/acpi/mipi_camera.asl
View File

@ -86,6 +86,20 @@ Scope (\_SB.PCI0.I2C2)
AddressingMode7Bit, "\\_SB.PCI0.I2C2",
0x00, ResourceConsumer, ,
)
/* GPIO.1 is sensor SDA in daisy chain mode */
GpioIo (Exclusive, PullDefault, 0x0000, 0x0000,
IoRestrictionInputOnly, "\\_SB.PCI0.I2C2.PMIC",
0x00, ResourceConsumer,,)
{
1
}
/* GPIO.2 is sensor SCL in daisy chain mode */
GpioIo (Exclusive, PullDefault, 0x0000, 0x0000,
IoRestrictionInputOnly, "\\_SB.PCI0.I2C2.PMIC",
0x00, ResourceConsumer,,)
{
2
}
/* GPIO.4 is AVDD pin for user facing camera */
GpioIo (Exclusive, PullDefault, 0x0000, 0x0000,
IoRestrictionOutputOnly, "\\_SB.PCI0.I2C2.PMIC",
@ -292,12 +306,22 @@ Scope (\_SB.PCI0.I2C2)
}
}
/* C0GP is used to indicate if CAM0
* GPIOs are configured as input.
*/
Name (C0GP, 0)
/* Power resource methods for CAM0 */
PowerResource (OVTH, 0, 0) {
Name (STA, 0)
Method (_ON, 0, Serialized) {
If (LEqual (AVBL, 1)) {
If (LEqual (STA, 0)) {
If (LEqual (C0GP, 0)) {
\_SB.PCI0.I2C2.CAM0.CGP1()
\_SB.PCI0.I2C2.CAM0.CGP2()
C0GP = 1
}
/* Enable VSIO regulator +
daisy chain */
DOVD(1)
@ -505,6 +529,26 @@ Scope (\_SB.PCI0.I2C2)
Field (\_SB.PCI0.I2C2.PMIC.GPOP, ByteAcc, NoLock, Preserve)
{
Connection
(
GpioIo (Exclusive, PullDefault, 0x0000, 0x0000,
IoRestrictionInputOnly, "\\_SB.PCI0.I2C2.PMIC",
0x00, ResourceConsumer,,)
{
1
}
),
GPO1, 1,
Connection
(
GpioIo (Exclusive, PullDefault, 0x0000, 0x0000,
IoRestrictionInputOnly, "\\_SB.PCI0.I2C2.PMIC",
0x00, ResourceConsumer,,)
{
2
}
),
GPO2, 1,
Connection
(
GpioIo (Exclusive, PullDefault, 0x0000, 0x0000,
@ -524,6 +568,18 @@ Scope (\_SB.PCI0.I2C2)
GRST = Arg0
}
/* Read GPO1 GPIO, to configure as input */
Method (CGP1, 0, Serialized)
{
Return (GPO1)
}
/* Read GPO2 GPIO, to configure as input */
Method (CGP2, 0, Serialized)
{
Return (GPO2)
}
Name (_PR0, Package () { ^^I2C2.PMIC.OVTH })
Name (_PR3, Package () { ^^I2C2.PMIC.OVTH })