Hi Chanwoo On 08/10/2016 08:37 AM, Chanwoo Choi wrote: > Hi Chris, > > On 2016? 08? 10? 08:32, Chris Zhong wrote: >> Hi all >> >> This series patch is for rockchip Type-C phy and DisplayPort controller >> driver. >> >> The USB Type-C PHY is designed to support the USB3 and DP applications. >> The PHY basically has two main components: USB3 and DisplyPort. USB3 >> operates in SuperSpeed mode and the DP can operate at RBR, HBR and HBR2 >> data rates. The Type-C cable orientation detection and Power Delivery >> (PD) is accomplished using a PD PHY or a exernal PD chip. >> >> The DP controller is compliant with DisplayPort Specification, >> Version 1.3, This IP is compatible with the rockchip type-c PHY IP. >> There is a uCPU in DP controller, it need a firmware to work, please >> put the firmware file[0] to /lib/firmware/rockchip/dptx.bin. The uCPU >> in charge of aux communication and link training, the host use mailbox >> to communicate with the ucpu. >> >> The DP contoller has register a notification with extcon API, to get the >> alt mode from PD, the PD driver need call the devm_extcon_dev_allocate >> to create a extcon device and use extcon_set_state to notify DP >> controller. And call extcon_set_cable_property to set orientation. >> >> About the DP audio, cdn-dp registered 2 DAIs: 0 is I2S, 1 is SPDIF. >> We can reference them in simple-card. >> >> This series is based on Mark Yao's branch[1] and Chanwoo Choi's >> extcon-next branch[2], and the clk patch[3]. >> >> I test this patches on the rk3399-evb board, with a fusb302 driver, >> this branch has no rk3399.dtsi, so the patch about dts is not included >> in this series. >> >> >From V9, the Type-C PHY is split into two PHYs: DP and USB3. The PHY >> will be init, no matter which PHY be power_on. The DP module will >> enter A2 mode (standby mode) after phy_init, if DP PHY is powered on, >> the DP module will enter to A0 mode(running mode). Then if DP PHY is >> powered off, DP module will back to A2 mode. If everything is >> un-plugged, phy will be deinit. >> >> [0] >> https://patchwork.kernel.org/patch/9249693/ >> [1] >> https://github.com/markyzq/kernel-drm-rockchip/tree/drm-rockchip-next-2016-05-23 >> [2] >> https://git.kernel.org/cgit/linux/kernel/git/chanwoo/extcon.git/log/?h=extcon-test >> - extcon: Add the extcon_type to gather each connector into five category >> - extcon: Add the support for extcon property according to extcon type >> - extcon: Add the support for the capability of each property >> - extcon: Rename the extcon_set/get_state() to maintain the function naming >> pattern >> - extcon: Add the synchronization extcon APIs to support the notification >> - extcon: Add EXTCON_DISP_DP and the property for USB Type-C > The extcon patches are merged on extcon-next branch. > So, you can check them on both extcon git and linux-next git repo. Oh, did not notice these extcon patches has landed. I will remove this section, if next version DP is required. > [snip] > > Regards, > Chanwoo Choi > > > >
