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e46b2e393a
The kernel DP driver do not support hpd gpio detect, it use EXTCON_DISP_DP cable state to decide power on/off DP PHY. Hence, do not change GPIO_USB_DP_HPD level, but set or clear the TYPEC_MUX_DP when hpd level changing in attention. BUG=chrome-os-partner:52872 BRANCH=none TEST=keep Type-C Dock inserted 1. plug HDMI cable, check with "ectool usbpdmuxinfo" Port 0: USB DP 2. unplug HDMI cable, check with "ectool usbpdmuxinfo" Port 0: USB Change-Id: I369a92135bf0ca177e81eab6385980d51d863172 Signed-off-by: Chris Zhong <zyw@rock-chips.com> Reviewed-on: https://chromium-review.googlesource.com/364401 Commit-Ready: Guenter Roeck <groeck@chromium.org> Tested-by: Guenter Roeck <groeck@chromium.org> Reviewed-by: Shawn N <shawnn@chromium.org>
For an overview of the Embedded Controller firmware, refer to http://www.chromium.org/chromium-os/2014-firmware-summit For instructions on building from source, refer to http://www.chromium.org/chromium-os/ec-development/getting-started-building-ec-images-quickly