VPE(Video Processing Engine) is an IP found on DRA7xx, this series adds VPE as a mem to mem v4l2 driver, and VPDMA as a helper library. The previous revision of the series described VPE in detail, you can have a look at it here: http://www.spinics.net/lists/linux-media/msg66518.html There were a lot of useful suggestions made by Hans, Tomi and Laurent. This series incorporate these changes. There are few comments which I haven't been able to address, I've pointed those below too. Changes in v2: - Constify the structs that can be constified. - Remove the use of wmb() from vpdma_submit_descs(). - Remove an unnecessary layer of helper macros used for creating or reading VPDMA descriptors. - Create a CONFIG which enables/disables VPE debug prints. - Remove CAPTURE/OUTPUT_MPLANE from device_caps. - Fix the pix->field setting in TRY_FMT ioctl. - Fix a bug in the v4l2 control handler registration and release. - Move video_register_device() at the end of driver probe. - Improve some of the function names, remove unnecessary BUG_ONs etc, use ERR_PTR() to return error codes correctly. Things still open in v2: - Tomi had a comment about the usage msleep_interruptible in the first patch. I am not clear whether this is actually a problem and what's the right approach. - Laurent suggested using DMA allocation API for the VPDMA library, we currently use kzalloc to allocate and dma_map/unmap_single api to map to VPDMA/CPU. DMA pool api won't be a good replacement here. - There was a suggestion to use synchronous firmware interface. If I understand right, synchronous interfaces forces us to have the firmware appended to the kernel, that's not something we want. Archit Taneja (6): v4l: ti-vpe: Create a vpdma helper library v4l: ti-vpe: Add helpers for creating VPDMA descriptors v4l: ti-vpe: Add VPE mem to mem driver v4l: ti-vpe: Add de-interlacer support in VPE arm: dra7xx: hwmod data: add VPE hwmod data and ocp_if info experimental: arm: dts: dra7xx: Add a DT node for VPE arch/arm/boot/dts/dra7.dtsi | 11 + arch/arm/mach-omap2/omap_hwmod_7xx_data.c | 42 + drivers/media/platform/Kconfig | 16 + drivers/media/platform/Makefile | 2 + drivers/media/platform/ti-vpe/Makefile | 5 + drivers/media/platform/ti-vpe/vpdma.c | 846 ++++++++++++ drivers/media/platform/ti-vpe/vpdma.h | 202 +++ drivers/media/platform/ti-vpe/vpdma_priv.h | 640 +++++++++ drivers/media/platform/ti-vpe/vpe.c | 2042 ++++++++++++++++++++++++++++ drivers/media/platform/ti-vpe/vpe_regs.h | 496 +++++++ 10 files changed, 4302 insertions(+) create mode 100644 drivers/media/platform/ti-vpe/Makefile create mode 100644 drivers/media/platform/ti-vpe/vpdma.c create mode 100644 drivers/media/platform/ti-vpe/vpdma.h create mode 100644 drivers/media/platform/ti-vpe/vpdma_priv.h create mode 100644 drivers/media/platform/ti-vpe/vpe.c create mode 100644 drivers/media/platform/ti-vpe/vpe_regs.h -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
