On Wed, May 17, 2017 at 3:40 PM, Maxime Ripard <maxime.ripard@xxxxxxxxxxxxxxxxxx> wrote: > Hi, > > Here is an attempt at getting the HDMI controller running. > > This HDMI controller is found on a number of old Allwinner SoCs (A10, A10s, > A20, A31). > > This driver only supports for now the A10s because it was an easy target, > being very close to the A13 that is already supported by our DRM driver. > > There's nothing out of the extraordinary there, except maybe the clock > setup. All the internal clocks (TMDS, DDC) have been modeled using the > common clock framework, the TMDS clock being the parent of the DDC one. > > While this might sound overkill, other SoC have a different, external > source for the DDC clock, which will be easier to support through the clock > framework. > > The IP also supports audio (through an already supported i2s controller, > and some missing configuration in the HDMI controller) and CEC. Both will > come eventually. > > Let me know what you think! > Maxime > > Changes from v2: > - Fixed the PLL control macros definitions > - Called clk_enable / disable on the DDC clock > - Added the flags to enable the connection polling > - Fixed the vtotal computation in TCON's code, and added a comment > - Added and documented the A10s display engine compatible > - Reworked the component parsing code to bail out when a standard > connector is found > - Fixed a inconsistent comment in the predivider unapplication > - Fixed a commit log > - Added Chen-Yu's and Rob's Acked-By > - Changed divider_round_rate to a static, inline function in the header > - Added and document the A10s display pipeline compatible > - Rebased on top of 4.12 > > Changes from v1: > - Fixed typos in the CCU header and the HDMI code > - Reintroduced the comment for the backporch timings > - Renamed the hdmi node to hdmi, instead of hdmi0 > - Added support for hdmi-connector > - Added a separate Kconfig option for the HDMI support > - Changed the TCON muxing configuration for an explicit call in the > TCON's "clients" > - Fixed the initialisation sequence that was clearing the clocks bits > - Constified the HDMI's structures and removed whitespaces errors > - Fixed an issue in the sunxi-ng code that was not reporting the proper > parent clock rate if it was modified > - Removed unused headers > - Removed CLK_SET_RATE_PARENT for the DDC clock > - Used the DDC address defines > - Removed the interlace flag that wasn't supported at the moment > - Moved most of the HDMI encoder init to the bind function like we do for > the other encoders > - Switched to drm_of_find_possible_crtcs > - Removed the extra printk that were still in my code > - Rebased on top of linux-next > - Removed the patch changing the divider_round_rate prototype to > introduce a new function instead that takes the parent clock to > evaluate > - Added a clk_set_rate for the hdmi module clock > - Fixed the V_TOTAL TCON ch0 calculation to be consistent with ch1's > - Defined all registers, and remove the TODOs > - Fixed the EDID issues by increasing the timeout. > - Added an atomic_check to prevent the DBLCLK modes to be used, as it is > not supported yet > - Updated the binding to add the interrupts and DMA channels > > Maxime Ripard (21): > clk: divider: Make divider_round_rate take the parent clock > clk: sunxi-ng: Pass the parent and a pointer to the clocks round rate > clk: sunxi-ng: div: Switch to divider_round_rate > clk: sunxi-ng: mux: Don't just rely on the parent for CLK_SET_RATE_PARENT > clk: sunxi-ng: mux: split out the pre-divider computation code > clk: sunxi-ng: mux: Change pre-divider application function prototype > clk: sunxi-ng: mux: Re-adjust parent rate > clk: sunxi-ng: sun5i: Export video PLLs Merged patches 1 ~ 8 and ... > drm/sun4i: tcon: Add channel debug > drm/sun4i: tcon: Move the muxing out of the mode set function > drm/sun4i: tcon: Switch mux on only for composite > drm/sun4i: tcon: Fix tcon channel 1 backporch calculation > drm/sun4i: tcon: Change vertical total size computation inconsistency > drm/sun4i: tcon: multiply the vtotal when not in interlace > drm/sun4i: Ignore the generic connectors for components > dt-bindings: display: sun4i: Add HDMI display bindings > dt-bindings: display: sun4i: Add allwinner,tcon-channel property > drm/sun4i: Add HDMI support > drm/sun4i: Add compatible for the A10s pipeline > ARM: sun5i: a10s: Add the HDMI controller node > ARM: sun5i: a10s-olinuxino: Enable HDMI ... 20 ~ 21 for 4.13. ChenYu -- 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
