diff options
| author | Alexey Brodkin <Alexey.Brodkin@synopsys.com> | 2017-12-05 13:19:38 +0300 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2017-12-20 12:41:43 -0800 |
| commit | c18fc9071762769acb4040cabae45c817aefc537 (patch) | |
| tree | 5d674bb6780145e912d6f6326cb26b487ef5097f | |
| parent | d0729bc6bee797fb4bcca87583af5adbfe79ecfb (diff) | |
| download | linux-c18fc9071762769acb4040cabae45c817aefc537.tar.bz2 | |
ARC: [plat-hsdk] Switch DisplayLink driver from fbdev to DRM
Currently there're 2 different implementations of the driver for
DisplayLink USB2.0-to-HDMI/DVI adapters: older FBDEV and modern true
DRM.
We initially decided to use FBDEV version just because with it
/dev/fbX is usable from user-space while in DRM version
with DRM_FBDEV_EMULATION user-space cannot draw anything on a real
screen, for more info read [1].
But today /dev/fbX is not that important as more and more software
projects switch to use of DRI (/dev/dri/cardX).
But what's even more important DRM driver allows building of complicated
graphics processing chains. The most important for us is rendering of
3D on a dedicated GPU while outputting video through a simpler
bitstreamer like DisplayLink. So let's use much more future-proof
driver from now on.
[1] https://lists.freedesktop.org/archives/dri-devel/2017-December/159519.html
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
| -rw-r--r-- | arch/arc/configs/hsdk_defconfig | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/arc/configs/hsdk_defconfig b/arch/arc/configs/hsdk_defconfig index 7b8f8faf8a24..ac6b0ed8341e 100644 --- a/arch/arc/configs/hsdk_defconfig +++ b/arch/arc/configs/hsdk_defconfig @@ -49,10 +49,11 @@ CONFIG_SERIAL_8250_DW=y CONFIG_SERIAL_OF_PLATFORM=y # CONFIG_HW_RANDOM is not set # CONFIG_HWMON is not set +CONFIG_DRM=y +# CONFIG_DRM_FBDEV_EMULATION is not set +CONFIG_DRM_UDL=y CONFIG_FB=y -CONFIG_FB_UDL=y CONFIG_FRAMEBUFFER_CONSOLE=y -CONFIG_USB=y CONFIG_USB_EHCI_HCD=y CONFIG_USB_EHCI_HCD_PLATFORM=y CONFIG_USB_OHCI_HCD=y |