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feb63bec88
Apply the recommended USB EQ settings for Tx and Rx channel loss compensation to the PS8740 USB mux chip. This is called after the driver is initialized and sets up the chip for the first time. BUG=chrome-os-partner:47074 BRANCH=none TEST=build and boot on chell, read back registers to verify > i2cxfer r 1 0x34 0x32 0x60 [96] > i2cxfer r 1 0x34 0x3b 0x60 [96] > i2cxfer r 1 0x20 0x32 0x60 [96] > i2cxfer r 1 0x20 0x3b 0x60 [96] Change-Id: I95334be9eed2858864787500a7483fa043947148 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/313748 Reviewed-by: Shawn N <shawnn@chromium.org>