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| author | Adam Ford <aford173@gmail.com> | 2023-05-28 16:27:27 +0300 |
|---|---|---|
| committer | Neil Armstrong <neil.armstrong@linaro.org> | 2023-05-30 11:04:30 +0300 |
| commit | 5769b45abedca0b9d14145e156c180af36139416 (patch) | |
| tree | 2a694f0eb0507b8ac9697e28d740ca609168870a /Documentation/devicetree/bindings/display/bridge | |
| parent | 67d0109fb7aef2a378e885a4127f411a04042160 (diff) | |
| download | linux-5769b45abedca0b9d14145e156c180af36139416.tar.xz | |
dt-bindings: bridge: samsung-dsim: Make some flags optional
In the event a device is connected to the samsung-dsim
controller that doesn't support the burst-clock, the
driver is able to get the requested pixel clock from the
attached device or bridge. In these instances, the
samsung,burst-clock-frequency isn't needed, so remove
it from the required list.
The pll-clock frequency can be set by the device tree entry
for samsung,pll-clock-frequency, but in some cases, the
pll-clock may have the same clock rate as sclk_mipi clock.
If they are equal, this flag is not needed since the driver
will use the sclk_mipi rate as a fallback.
Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230528132727.3933-1-aford173@gmail.com
Diffstat (limited to 'Documentation/devicetree/bindings/display/bridge')
| -rw-r--r-- | Documentation/devicetree/bindings/display/bridge/samsung,mipi-dsim.yaml | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/Documentation/devicetree/bindings/display/bridge/samsung,mipi-dsim.yaml b/Documentation/devicetree/bindings/display/bridge/samsung,mipi-dsim.yaml index 9f61ebdfefa8..06b6c44d4641 100644 --- a/Documentation/devicetree/bindings/display/bridge/samsung,mipi-dsim.yaml +++ b/Documentation/devicetree/bindings/display/bridge/samsung,mipi-dsim.yaml @@ -70,7 +70,9 @@ properties: samsung,burst-clock-frequency: $ref: /schemas/types.yaml#/definitions/uint32 description: - DSIM high speed burst mode frequency. + DSIM high speed burst mode frequency. If absent, + the pixel clock from the attached device or bridge + will be used instead. samsung,esc-clock-frequency: $ref: /schemas/types.yaml#/definitions/uint32 @@ -80,7 +82,8 @@ properties: samsung,pll-clock-frequency: $ref: /schemas/types.yaml#/definitions/uint32 description: - DSIM oscillator clock frequency. + DSIM oscillator clock frequency. If absent, the clock frequency + of sclk_mipi will be used instead. phys: maxItems: 1 @@ -134,9 +137,7 @@ required: - compatible - interrupts - reg - - samsung,burst-clock-frequency - samsung,esc-clock-frequency - - samsung,pll-clock-frequency allOf: - $ref: ../dsi-controller.yaml# |