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yorp: lower i2c speeds to 100kHz

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We need to tune the i2c parameters for the nuvoton chip on our yorp board
to be able to operate at 400kHz. Currently we do not need the extra speed
or bandwidth, so we are reverting to a lower speed where the default
timing parameters work well.

BRANCH=none
BUG=b:78554726,b:78225299
TEST=HDMI over TypeC works on yorp

This reverts commit 2e7e6665b1.

Change-Id: Ic4ba1d5ef25661bd6c7f9490450af65b4e1393ad
Signed-off-by: Jett Rink <jettrink@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1028752
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Jett Rink
2018-04-25 13:13:19 -06:00
parent 805b9850a6
commit f3de6cf48d
1 changed files with 2 additions and 2 deletions
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4
board/yorp/board.c
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@@ -121,8 +121,8 @@ BUILD_ASSERT(ARRAY_SIZE(power_signal_list) == POWER_SIGNAL_COUNT);
/* I2C port map. */
const struct i2c_port_t i2c_ports[] = {
{"battery", I2C_PORT_BATTERY, 100, GPIO_I2C0_SCL, GPIO_I2C0_SDA},
{"tcpc0", I2C_PORT_TCPC0, 400, GPIO_I2C1_SCL, GPIO_I2C1_SDA},
{"tcpc1", I2C_PORT_TCPC1, 400, GPIO_I2C2_SCL, GPIO_I2C2_SDA},
{"tcpc0", I2C_PORT_TCPC0, 100, GPIO_I2C1_SCL, GPIO_I2C1_SDA},
{"tcpc1", I2C_PORT_TCPC1, 100, GPIO_I2C2_SCL, GPIO_I2C2_SDA},
{"eeprom", I2C_PORT_EEPROM, 100, GPIO_I2C3_SCL, GPIO_I2C3_SDA},
{"charger", I2C_PORT_CHARGER, 100, GPIO_I2C4_SCL, GPIO_I2C4_SDA},
{"sensor", I2C_PORT_SENSOR, 100, GPIO_I2C7_SCL, GPIO_I2C7_SDA},