mb/google/poppy/variants/nocturne: sx9310 to 400kb
The spec of the sx9310 says the I2C interface can handle standard
(100kb/s) and fast mode (400kb/s). The current setting is using fast
plus (1000kb/s) so this change is reducing the speed to fast mode.
I've been using the sensors with this change for a few weeks now, though
I also don't recall seeing an issue prior to this change.
Change-Id: I337fc02c52565d6ec4d7bac1b3564f65238962dc
Signed-off-by: Matt Delco <delco@chromium.org>
Reviewed-on: https://review.coreboot.org/28075
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
diff --git a/src/mainboard/google/poppy/variants/nocturne/devicetree.cb b/src/mainboard/google/poppy/variants/nocturne/devicetree.cb
index 2c074e9..4fbd0ff 100644
--- a/src/mainboard/google/poppy/variants/nocturne/devicetree.cb
+++ b/src/mainboard/google/poppy/variants/nocturne/devicetree.cb
@@ -298,7 +298,7 @@
chip drivers/i2c/sx9310
register "desc" = ""Right SAR Proximity Sensor""
register "irq" = "ACPI_IRQ_LEVEL_LOW(GPP_D9_IRQ)"
- register "speed" = "I2C_SPEED_FAST_PLUS"
+ register "speed" = "I2C_SPEED_FAST"
register "uid" = "0"
register "reg_prox_ctrl0" = "0x10"
register "reg_prox_ctrl1" = "0x00"
@@ -339,7 +339,7 @@
chip drivers/i2c/sx9310
register "desc" = ""Left SAR Proximity Sensor""
register "irq" = "ACPI_IRQ_LEVEL_LOW(GPP_D10_IRQ)"
- register "speed" = "I2C_SPEED_FAST_PLUS"
+ register "speed" = "I2C_SPEED_FAST"
register "uid" = "1"
register "reg_prox_ctrl0" = "0x10"
register "reg_prox_ctrl1" = "0x00"