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cf33de1799
The driver used to say that the value to program into bridge register 0x93 was dp_lanes - 1. Looking at the datasheet for the bridge, this is wrong. The data sheet says: * 1 = 1 lane * 2 = 2 lanes * 3 = 4 lanes A more proper way to express this encoding is min(dp_lanes, 3). At the moment this change has zero effect because we've hardcoded the number of DP lanes to 4. ...and (4 - 1) == min(4, 3). How fortunate! ...but soon we'll stop hardcoding the number of lanes. Signed-off-by: Douglas Anderson <dianders@chromium.org> Tested-by: Rob Clark <robdclark@gmail.com> Reviewed-by: Rob Clark <robdclark@gmail.com> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191218143416.v3.4.If3e2d0493e7b6e8b510ea90d8724ff760379b3ba@changeid |
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arch | ||
block | ||
certs | ||
crypto | ||
Documentation | ||
drivers | ||
fs | ||
include | ||
init | ||
ipc | ||
kernel | ||
lib | ||
LICENSES | ||
mm | ||
net | ||
samples | ||
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sound | ||
tools | ||
usr | ||
virt | ||
.clang-format | ||
.cocciconfig | ||
.get_maintainer.ignore | ||
.gitattributes | ||
.gitignore | ||
.mailmap | ||
COPYING | ||
CREDITS | ||
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Makefile | ||
README |
Linux kernel ============ There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. The formatted documentation can also be read online at: https://www.kernel.org/doc/html/latest/ There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.