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| author |   Jeykumar Sankaran <jsanka@codeaurora.org> | 2018-07-20 16:42:52 -0400 |
|---|---|---|
| committer |   Rob Clark <robdclark@gmail.com> | 2018-07-30 08:50:12 -0400 |
| commit | 6b0a180ede4884ea5cdd30ca939ddf43ef11cdac (patch) | |
| tree | 6268f45caf4cda7e47c7c994e7c2e680dceea7c0 /Documentation/devicetree/bindings/display | |
| parent | drm/msm/disp/dpu: Mark a handful of functions as static (diff) | |
| download | linux-dev-6b0a180ede4884ea5cdd30ca939ddf43ef11cdac.tar.xz linux-dev-6b0a180ede4884ea5cdd30ca939ddf43ef11cdac.zip | |
dt-bindings: msm/dsi: Add mdp transfer time to msm dsi binding
Adds mdp transfer time to msm dsi binding
Changes in v3:
- Added Rob's R-b
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
Signed-off-by: Rajesh Yadav <ryadav@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'Documentation/devicetree/bindings/display')
| -rw-r--r-- | Documentation/devicetree/bindings/display/msm/dsi.txt | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/display/msm/dsi.txt b/Documentation/devicetree/bindings/display/msm/dsi.txt index 518e9cdf0d4b..d22237a88eae 100644 --- a/Documentation/devicetree/bindings/display/msm/dsi.txt +++ b/Documentation/devicetree/bindings/display/msm/dsi.txt @@ -121,6 +121,20 @@ Required properties: Optional properties: - qcom,dsi-phy-regulator-ldo-mode: Boolean value indicating if the LDO mode PHY regulator is wanted. +- qcom,mdss-mdp-transfer-time-us: Specifies the dsi transfer time for command mode + panels in microseconds. Driver uses this number to adjust + the clock rate according to the expected transfer time. + Increasing this value would slow down the mdp processing + and can result in slower performance. + Decreasing this value can speed up the mdp processing, + but this can also impact power consumption. + As a rule this time should not be higher than the time + that would be expected with the processing at the + dsi link rate since anyways this would be the maximum + transfer time that could be achieved. + If ping pong split is enabled, this time should not be higher + than two times the dsi link rate time. + If the property is not specified, then the default value is 14000 us. [1] Documentation/devicetree/bindings/clock/clock-bindings.txt [2] Documentation/devicetree/bindings/graph.txt @@ -171,6 +185,8 @@ Example: qcom,master-dsi; qcom,sync-dual-dsi; + qcom,mdss-mdp-transfer-time-us = <12000>; + pinctrl-names = "default", "sleep"; pinctrl-0 = <&dsi_active>; pinctrl-1 = <&dsi_suspend>; |