PD#158474: drm: Add Content Protection property
This patch adds a new optional connector property to allow userspace to enable
protection over the content it is displaying. This will typically be implemented
by the driver using HDCP.
The property is a tri-state with the following values:
- OFF: Self explanatory, no content protection
- DESIRED: Userspace requests that the driver enable protection
- ENABLED: Once the driver has authenticated the link, it sets this value
The driver is responsible for downgrading ENABLED to DESIRED if the link becomes
unprotected. The driver should also maintain the desiredness of protection
across hotplug/dpms/suspend.
If this looks familiar, I posted [1] this 3 years ago. We have been using this
in ChromeOS across exynos, mediatek, and rockchip over that time.
Changes in v2:
- Pimp kerneldoc for content_protection_property (Daniel)
- Drop sysfs attribute
Changes in v3:
- None
Changes in v4:
- Changed kerneldoc to recommend userspace polling (Daniel)
- Changed kerneldoc to briefly describe how to attach the property (Daniel)
Changes in v5:
- checkpatch whitespace noise
- Change DRM_MODE_CONTENT_PROTECTION_OFF to DRM_MODE_CONTENT_PROTECTION_UNDESIRED
Changes in v6:
- None
commit 24557865c8
Author: Sean Paul <seanpaul@chromium.org>
Date: Mon Jan 8 14:55:37 2018 -0500
Change-Id: Ief031a46681d88369454ebbc56ed0bb203258ab5
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Yi Zhou <yi.zhou@amlogic.com>
PD#164751: clk: meson: remove CLK_SET_RATE_PARENT for spicc
If add CLK_SET_RATE_PARENT, set rate for spicc clock will
change clk81 rate.
Change-Id: If653169e26363e8015ae0547e899a9ea2b362a48
Signed-off-by: Jian Hu <jian.hu@amlogic.com>
PD#168492: hdmirx: add afifo threshold pass status for audio
when HDMI in,audio will check the fifo empty count to see
if the hdmirx fifo is empty,then audio hal will mute the dirty data
to avoid noise.
Change-Id: I37e19d1490c560ca9fb38ffa2c3c03793e81c9ae
Signed-off-by: Hang Cheng <hang.cheng@amlogic.com>
PD#169382: dts: add system led control for u200 buildroot
Change-Id: I56686581ff8f5e2e2d36cb91f77a418ae1f9479a
Signed-off-by: wenbiao zhang <wenbiao.zhang@amlogic.com>
PD#169021: remove some print info
remove some print info, for interlace frame, bottom pts will be
zero in single mode and multi intstance force interlace.
Change-Id: Ie1e3285e11cca37a6be98aecf55a927186cc727c
Signed-off-by: shuanglong.wang <shuanglong.wang@amlogic.com>
PD#168934: clk: txlx: add lock protection on meson_clk_measure()
Fix encl_clk_msr equal zero when switch to hdmirx
Change-Id: I95bf5c3e4c0b45b2884a87a4112893b64766cda3
Signed-off-by: Jian Hu <jian.hu@amlogic.com>
PD#168111: hdmitx: reactive I2C after resume
Sometimes, TX devices suspend and close HDMI 5V power, then this
may cause I2C clock/data falls and hungup I2C waiting states.
Change-Id: Ifd83c19f91a7023a43cebb5654157e207013556c
Signed-off-by: Zongdong Jiao <zongdong.jiao@amlogic.com>
PD#169041: hdmirx: mute the audio when get avmute signal
Change-Id: I5941d48a793974f7292d6648a70d7e7842944170
Signed-off-by: yicheng shen <yicheng.shen@amlogic.com>
PD#165680: audio: auge: only spdifin_event extcon for spdif_a in g12a
Change-Id: Ie8486dc460a9452dc8a0f26a2a5acce83ee7bf26
Signed-off-by: Xing Wang <xing.wang@amlogic.com>
PD#167737: VPP: adjust vpp skip line limit for bandwidth
Change-Id: I18c4325750a3c266936db849e52d938adf00adda
Signed-off-by: Dezhi Kong <dezhi.kong@amlogic.com>
PD#164286: usb: phy2: recovery analog status during initial phase
If a USB device is enumerated done by Host, then the host system
reboot without power off, the AML USB PHY statue need to recovery,
or the USB device will be enumerated unsuccessfully.
Change-Id: If122e53b6a818be11be0ed6581ac485450244db0
Signed-off-by: Jianxin Qin <jianxin.qin@amlogic.com>
PD#164738: audio: auge: check frddr src for each frddr
when output for raw data, disable the same frddrr src from other frddr
Change-Id: I930c84b0520ff404c6a323be79b26102699c817b
Signed-off-by: Xing Wang <xing.wang@amlogic.com>
PD#167168: mtd: avoid skip bad block in last part when add partition
Change-Id: Ice1e8246f22dd0d275c9ffdb64dcf9f165097bab
Signed-off-by: Yi Zeng <yi.zeng@amlogic.com>
PD#168494: hdmirx: optimize for devices which send signal slowly
1.avoid rapid phy reset interference signal recognition
2.add 3d information parse of edid
Change-Id: Iafa38bad6907f287c0e021d5fb32d11e43c489a0
Signed-off-by: Hang Cheng <hang.cheng@amlogic.com>
