Hi Chris, On 2016년 08월 10일 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. [snip] Regards, Chanwoo Choi -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
