Steve Longerbeam <slongerbeam <at> gmail.com> writes: > > Hi, this affects only Freescale imx IPU and imx-drm staging drivers, > except for two patches that affect drm core (patch 53 and 63, see below). > > New features for imx-drm staging driver: > > - Support for multi-display (HDMI and LVDS). > - Support for global alpha and color-key properties for overlay plane. > - Support for gamma correction. > - The imx-drm crtc devices moved to device tree. > - Support for defining custom display interface pixel mappings in the > device tree. > - Implements encoder DPMS for LVDS. > - YUV planar pixel formats supported for DRM framebuffers. > - DDC support added for LVDS. > - Page flip handling moved to imx plane driver and implemented with > IPU double-buffering. > - Support page-flip in the overlay plane (patch 53 affects drm core). > - Add support for parsing pixel clock edge select (patch 63 affects drm core). > - Add LVDS connection detect via drm_probe_ddc(). > - Implement crtc mode_set_base using plane page-flip. > > Fixed issues: > > - HDMI and LVDS now use different PLL clock roots (part of multi-display > support). > - Use counter added to IPU DC enable/disable (part of multi-display > support). > - Fixed some HDMI timing issues. > - Wider range of supported DI pixel clocks generated (all EDID modes > reported from HDMI displays now work). > - Fix separate primary plane objects. > - HDMI must select DI pre clock as DI clock parent during encoder prepare > (LVDS may have switched DI clock to LDB parent, part of multi-display > support). > - Assign correct DMFC burst size. > - Resolve some DI synchronous display error cases. > Hi, Great work on these patches. Please cc me on imx-hdmi related patches as well. We are working on the JZ4780 (Ingenic Xburst/MIPS, not yet pushed upstream). It has the same/similar DWC HDMI block in silicon. I took the imx-hdmi driver from 3.14 and managed to use the driver with almost no modification except for replacing the imx_drm_xxx function calls for encoder/connector attach/register. Tested on the MIPS Creator CI20 board. Recently, I was looking at understanding the latest code and try to send an RFC mail on how to further reduce/break the imx-drm interaction with the hdmi driver. Compared to 3.14, the 3.18 driver has fewer imx_drm_xxx calls. Which is great. We will probably have other SoCs in the future using this HDMI block as well. So separating it completely from staging/imx-drm might make sense. Possibly rename it to dwc_hdmi as well unless people have an objection at redundant code churn. Just thought I'd pop in, highlight a different angle on the hdmi driver that will come up in the future, and request to be kept in the loop. Cheers, ZubairLK _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
