高通平台LCD调试：mdss-dsi-panel技术解析

Qualcomm mdss-dsi-panel

mdss-dsi-panel is a dsi panel device which supports panels that
are compatable with MIPI display serial interface specification.

Required properties:
- compatible: This property applies to DSI V2 panels only.
This property should not be added for panels
that work based on version "V6.0"
DSI panels that are of different versions
are initialized by the drivers for dsi controller.
This property specifies the version
for DSI HW that this panel will work with
"qcom,dsi-panel-v2" = DSI V2.0
- status:         This property applies to DSI V2 panels only.
This property should not be added for panels
that work based on version "V6.0"
DSI panels that are of different versions
are initialized by the drivers for dsi controller.
A string that has to be set to "okay/ok"
to enable the panel driver. By default this property
will be set to "disable". Will be set to "ok/okay"
status for specific platforms.
- qcom,mdss-dsi-panel-controller: Specifies the phandle for the DSI controller that
this panel will be mapped to.
- qcom,mdss-dsi-panel-width: Specifies panel width in pixels.
- qcom,mdss-dsi-panel-height: Specifies panel height in pixels.
- qcom,mdss-dsi-bpp: Specifies the panel bits per pixel.
3  = for rgb111
8  = for rgb332

12 = for rgb444
16 = for rgb565
18 = for rgb666
24 = for rgb888
- qcom,mdss-dsi-panel-destination: A string that specifies the destination display for the panel.
"display_1" = DISPLAY_1
"display_2" = DISPLAY_2
- qcom,mdss-dsi-panel-timings: An array of length 12 that specifies the PHY
timing settings for the panel.
- qcom,mdss-dsi-panel-timings-phy-v2: An array of length 40 char that specifies the PHY version 2
lane timing settings for the panel.
- qcom,mdss-dsi-on-command: A byte stream formed by multiple dcs packets base on
qcom dsi controller protocol.
byte 0: dcs data type
byte 1: set to indicate this is an individual packet
 (no chain)
byte 2: virtual channel number
byte 3: expect ack from client (dcs read command)
byte 4: wait number of specified ms after dcs command
 transmitted
byte 5, 6: 16 bits length in network byte order
byte 7 and beyond: number byte of payload
- qcom,mdss-dsi-off-command: A byte stream formed by multiple dcs packets base on
qcom dsi controller protocol.
byte 0: dcs data type
byte 1: set to indicate this is an individual packet
 (no chain)
byte 2: virtual channel number
byte 3: expect ack from client (dcs read command)
byte 4: wait number of specified ms after dcs command