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ARM: dts: msm: dynamic clock switch with specific HFP/VFP adjustment

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Add new dynamic clock types "adjust-hfp" and "adjust-vfp" to facilitate
specific hfp/vfp adjustment as per "qcom,dsi-dyn-hfp-list" and
"qcom,dsi-dyn-vfp-list" respectively corresponding to bit clock rates of
"qcom,dsi-dyn-clk-list". FPS might not be maintained in these cases.

Change-Id: Ic225624fb5e0bee0d8b099f2e955f65768371d4b
Signed-off-by: Srihitha Tangudu <quic_tangudu@quicinc.com>
Signed-off-by: lnxdisplay <lnxdisplay@localhost>
This commit is contained in:
Srihitha Tangudu
2024-11-25 11:53:03 +05:30
committed by lnxdisplay
parent c56ffa64e7
commit 78a57f6b4d
1 changed files with 26 additions and 1 deletions
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27
bindings/mdss-dsi-panel.yaml
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@@ -543,6 +543,12 @@ properties:
"constant-fps-adjust-vfp" = FPS is maintained even after "constant-fps-adjust-vfp" = FPS is maintained even after
dynamic clock switch by changing panel vertical front dynamic clock switch by changing panel vertical front
porch values. porch values.
"adjust-hfp" = Dynamic clock switch is achieved by adjusting the
horizontal front porch value according to the qcom,dsi-dyn-hfp-list.
FPS may not be maintained after the switch.
"adjust-vfp" = Dynamic clock switch is achieved by adjusting the
vertical front porch value according to the qcom,dsi-dyn-vfp-list.
FPS may not be maintatined after the switch.
This dyn-clk-type entry is an optional binding which is This dyn-clk-type entry is an optional binding which is
contingent on the enabling of dynamic clock switch. contingent on the enabling of dynamic clock switch.
$ref: /schemas/types.yaml#/definitions/string-array $ref: /schemas/types.yaml#/definitions/string-array
@@ -1713,6 +1719,24 @@ properties:
order of preference. order of preference.
$ref: /schemas/types.yaml#/definitions/uint32-array $ref: /schemas/types.yaml#/definitions/uint32-array
qcom,dsi-dyn-clk-hfp-list:
description: >
An u32 array of horizontal front porch values corresponding to the
dsi bit clock frequencies in qcom,dsi-dyn-clk-list for the given mode.
This property is essential for the adjust-hfp dynamic clock type,
which is used for specific horizontal porch adjustments when maintaining
a constant frame rate is not required.
$ref: /schemas/types.yaml#/definitions/uint32-array
qcom,dsi-dyn-clk-vfp-list:
description: >
An u32 array of vertical front porch values corresponding to the
dsi bit clock frequencies in qcom,dsi-dyn-clk-list for the given mode.
This property is essential for the adjust-vfp dynamic clock type,
which is used for specific horizontal porch adjustments when maintaining
a constant frame rate is not required.
$ref: /schemas/types.yaml#/definitions/uint32-array
qcom,disable-rsc-solver: qcom,disable-rsc-solver:
description: > description: >
Timing node property to dynamically disable RSC solver for Timing node property to dynamically disable RSC solver for
@@ -1908,7 +1932,7 @@ examples:
qcom,platform-reset-gpio = <&tlmm 0 0>; qcom,platform-reset-gpio = <&tlmm 0 0>;
qcom,dsi-dyn-clk-enable; qcom,dsi-dyn-clk-enable;
qcom,dsi-dyn-clk-type = "constant-fps-adjust-hfp"; qcom,dsi-dyn-clk-type = "adjust-hfp";
qcom,mdss-dsi-display-timings { qcom,mdss-dsi-display-timings {
wqhd { wqhd {
@@ -1988,6 +2012,7 @@ examples:
qcom,cmd-mode-switch-out-commands-state = "dsi_lp_mode"; qcom,cmd-mode-switch-out-commands-state = "dsi_lp_mode";
qcom,dsi-dyn-clk-list = <524637388 525735938 528842882>; qcom,dsi-dyn-clk-list = <524637388 525735938 528842882>;
qcom,dsi-dyn-clk-hfp-list = <52 64 96>;
qcom,vert-padding-value = <2940>; qcom,vert-padding-value = <2940>;
qcom,mdss-dsc-slice-height = <16>; qcom,mdss-dsc-slice-height = <16>;