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SubjectRe: [RFC 00/11] drm/bridge: dw-hdmi: implement bus-format negotiation and YUV420 support
On Tue, 20 Aug 2019 10:40:58 +0200
Neil Armstrong <narmstrong@baylibre.com> wrote:

> This patchset is based on Boris's "drm: Add support for bus-format negotiation" RFC at [1]

Small clarification. Neil's work in based on a slightly different
version of my RFC [4] (I plan to post a v2 very soon).

> patchset to implement :
> - basic bus-format negotiation for DW-HDMI
> - advanced HDMI2.0 YUV420 bus-format negotiation for DW-HDMI
>
> And the counterpart implementation in the Amlogic Meson VPU dw-hdmi glue :
> - basic bus-format negotiation to select YUV444 bus-format as DW-HDMI input
> - YUV420 support when HDMI2.0 YUV420 modeset
>
> This is a follow-up from the previous attempts :
> - "drm/meson: Add support for HDMI2.0 YUV420 4k60" at [2]
> - "drm/meson: Add support for HDMI2.0 4k60" at [3]
>
> [1] https://patchwork.freedesktop.org/patch/msgid/20190808151150.16336-1-boris.brezillon@collabora.com
> [2] https://patchwork.freedesktop.org/patch/msgid/20190520133753.23871-1-narmstrong@baylibre.com
> [3] https://patchwork.freedesktop.org/patch/msgid/1549022873-40549-1-git-send-email-narmstrong@baylibre.com

[4]https://github.com/bbrezillon/linux-0day/commits/drm-bridge-busfmt-2

>
> Neil Armstrong (11):
> fixup! drm/bridge: Add the necessary bits to support bus format
> negotiation
> drm/meson: venc: make drm_display_mode const
> drm/meson: meson_dw_hdmi: switch to drm_bridge_funcs
> drm/bridge: synopsys: dw-hdmi: add basic bridge_atomic_check
> drm/bridge: synopsys: dw-hdmi: use negociated bus formats
> drm/meson: dw-hdmi: stop enforcing input_bus_format
> drm/bridge: dw-hdmi: allow ycbcr420 modes for >= 0x200a
> drm/bridge: synopsys: dw-hdmi: add 420 mode format negociation
> drm/meson: venc: add support for YUV420 setup
> drm/meson: vclk: add support for YUV420 setup
> drm/meson: Add YUV420 output support
>
> drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 97 +++++++++++++++-
> drivers/gpu/drm/drm_bridge.c | 6 +-
> drivers/gpu/drm/meson/meson_dw_hdmi.c | 135 +++++++++++++++++-----
> drivers/gpu/drm/meson/meson_vclk.c | 93 +++++++++++----
> drivers/gpu/drm/meson/meson_vclk.h | 7 +-
> drivers/gpu/drm/meson/meson_venc.c | 8 +-
> drivers/gpu/drm/meson/meson_venc.h | 13 ++-
> drivers/gpu/drm/meson/meson_venc_cvbs.c | 3 +-
> include/drm/bridge/dw_hdmi.h | 1 +
> 9 files changed, 295 insertions(+), 68 deletions(-)
>

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