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authorTao Xia <xiatao5@huaqin.corp-partner.google.com>2021-03-18 16:18:06 +0800
committerPatrick Georgi <pgeorgi@google.com>2021-03-28 16:02:54 +0000
commitfd952aaa50aff91f19781648c9952b59ce315445 (patch)
tree248d8c072014e27e7c752c98406d24f223b4dcd3 /src/mainboard/roda/rk9/blc.c
parent2fa96eb33eeefa745b2ac8639e3c9d48fe6778e0 (diff)
mb/google/dedede/var/storo: Configure I2C times for I2C devices
Configure I2C high / low time in device tree to ensure I2C CLK runs accurately at I2C_SPEED_FAST (400 kHz). Measured I2C frequency just as below after tuning: touchpad:371.63 kHz touchpanel:368.24 kHz audio codec RT5682:369.13 kHz speaker AMP L:366.21 kHz speaker AMP R:365.8 kHz P-sensor:368.34 kHz MIPI Camera:363.35 kHz BUG=b:181589325 BRANCH=dedede TEST=Build and check after tuning I2C clock is under 400kHz Signed-off-by: Tao Xia <xiatao5@huaqin.corp-partner.google.com> Change-Id: I1a755a54540e106b41ac427f84989ed7e8037558 Reviewed-on: https://review.coreboot.org/c/coreboot/+/51624 Reviewed-by: Karthik Ramasubramanian <kramasub@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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