From: Hans Verkuil hans.verkuil@cisco.com
This patch series adds several helper functions to ease writing drm or media CEC drivers.
It also adds support for the CEC_CAP_NEEDS_HPD capability which is needed for hardware that turns off the CEC support if the hotplug detect signal is low. Usually because the HPD is connected to some 'power' or 'active' pin of the CEC hardware.
One of those is the Odroid-U3, so add a 'needs-hpd' property that tells the driver whether or not CEC is available without HPD.
Regards,
Hans
Hans Verkuil (9): cec: add cec_s_phys_addr_from_edid helper function cec: add cec_phys_addr_invalidate() helper function cec: add cec_transmit_attempt_done helper function stih-cec/vivid/pulse8/rainshadow: use cec_transmit_attempt_done cec: add CEC_CAP_NEEDS_HPD cec-ioc-adap-g-caps.rst: document CEC_CAP_NEEDS_HPD dt-bindings: media/s5p-cec.txt: document needs-hpd property s5p_cec: set the CEC_CAP_NEEDS_HPD flag if needed ARM: dts: exynos: add needs-hpd to &hdmicec for Odroid-U3
.../devicetree/bindings/media/s5p-cec.txt | 6 +++ Documentation/media/kapi/cec-core.rst | 18 +++++++ .../media/uapi/cec/cec-ioc-adap-g-caps.rst | 8 +++ arch/arm/boot/dts/exynos4412-odroidu3.dts | 4 ++ drivers/media/cec/cec-adap.c | 60 +++++++++++++++++++--- drivers/media/cec/cec-api.c | 5 +- drivers/media/cec/cec-core.c | 1 + drivers/media/platform/s5p-cec/s5p_cec.c | 4 +- drivers/media/platform/sti/cec/stih-cec.c | 9 ++-- drivers/media/platform/vivid/vivid-cec.c | 6 +-- drivers/media/usb/pulse8-cec/pulse8-cec.c | 9 ++-- drivers/media/usb/rainshadow-cec/rainshadow-cec.c | 9 ++-- include/media/cec.h | 29 +++++++++++ include/uapi/linux/cec.h | 2 + 14 files changed, 142 insertions(+), 28 deletions(-)