Display Driver Open Source Plan

From OMAPpedia

Following features/patchsets were merged in 2.6.39

• Hwmod conversion of DSS2 - OMAP2/3
• Hwmod conversion of DSS2 - OMAP4
• Making DSS clock names common across all platforms
• Internal-clock-framework (calculation clock dividors for pixel clock for DSI1)
• Using hwmod opt-clocks for DSS
• Setting TAAL panel timings via bootargs
• Basic HDMI support (no HPD, Deep color, EDID)
• DVI support for Panda

Upcoming features/patchsets

Feature	Content	Targeted kernel.org Release	Status / Dependencies	Owner
PM (OMAP2/3/4)	pm_runtime support	2.6.40	The pm_runtime get/put_sync apis cannot be called from interrupt or spinlock context. Other drivers have therefore moved the pm_runtime calls out of spinlock context. For DSS, we have clk enable/disables around a set of register read/writes. This needs to be "relaxed". Idea is to add pm_runtime get/put sync calls near the user-space to kernel space entry points (syspend/resume, sysfs, ioctls) and remove the clk_enable/disable calls within the spinlock/unlocks in numerous functions.	Sumit, Mayuresh
OMAP4 new feature	video pipeline changes (video3, zorder)	2.6.40	Posted on LO. Delayed to 2.6.40 as more changes needed	Archit
OMAP4 new feature	DSI OMAP4 support for DSI1 and DSI2 - command mode	2.6.40	Missed 2.6.39 window	Archit
OMAP4 new feature	HDMI rework for supporting multiple SOCs - OMAP4, Netra, OMAP5	2.6.40		Mythri
OMAP4 new feature	HDMI advanced features (HPD, Extended-EDID)	2.6.40	-	Mythri
OMAP4 new feature	RFC for Write-back support	July-Aug timeframe	How can mem-2-mem be used?	Amber
OMAP4 new feature	NV 12 support in DSS driver	2.6.40	Changes to add new DMA base address for new color mode.	Archit
OMAP4 new feature	V4L2: multi-planar support for NV12	2.6.40		Amber
OMAP4 new feature	Setting scaling coefficients specific to OMAP4	2.6.40
OMAP4 new feature	Pico DLP	2.6.40	Under internal review	Mayuresh
OMAP4 new feature	Write back support - implementation	2.6.41
OMAP4 new feature	Interlace-support	2.6.40		Amber
OMAP4 new feature	Pre-decimation	2.6.41		Amber
OMAP4 new feature	V4L2: Any changes required to use videobuf2	2.6.40		Amber

---

• BACK to Display Domain Wiki