Add driver for the Waveshare DSI-TOUCH series panels. #6566
There are no files selected for viewing
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,94 @@ | ||
| /* | ||
| * vc4-kms-dsi-waveshare-panel-v2-overlay.dts | ||
| */ | ||
|
|
||
| /dts-v1/; | ||
| /plugin/; | ||
|
|
||
| #include <dt-bindings/gpio/gpio.h> | ||
|
|
||
| / { | ||
| compatible = "brcm,bcm2835"; | ||
|
|
||
| i2c_frag: fragment@0 { | ||
| target = <&i2c_csi_dsi>; | ||
| __overlay__ { | ||
| #address-cells = <1>; | ||
| #size-cells = <0>; | ||
| status = "okay"; | ||
|
|
||
| display_mcu: display_mcu@45 { | ||
| compatible = "waveshare,touchscreen-panel-regulator"; | ||
| reg = <0x45>; | ||
| gpio-controller; | ||
| #gpio-cells = <2>; | ||
| enable-gpio = <&display_mcu 2 GPIO_ACTIVE_HIGH>; | ||
| }; | ||
|
|
||
| touch: goodix@5d { | ||
| compatible = "goodix,gt9271"; | ||
| reg = <0x5d>; | ||
| reset-gpio = <&display_mcu 9 GPIO_ACTIVE_HIGH>; | ||
| }; | ||
| }; | ||
| }; | ||
|
|
||
| dsi_frag: fragment@1 { | ||
| target = <&dsi1>; | ||
| __overlay__ { | ||
| #address-cells = <1>; | ||
| #size-cells = <0>; | ||
| status = "okay"; | ||
|
|
||
| port { | ||
| dsi_out: endpoint { | ||
| remote-endpoint = <&panel_in>; | ||
| }; | ||
| }; | ||
|
|
||
| dsi_panel: dsi_panel@0 { | ||
| reg = <0>; | ||
| compatible = "waveshare,10.1-dsi-touch-a"; | ||
| reset-gpio = <&display_mcu 1 GPIO_ACTIVE_HIGH>; | ||
| backlight = <&display_mcu>; | ||
|
|
||
| port { | ||
| panel_in: endpoint { | ||
| remote-endpoint = <&dsi_out>; | ||
| }; | ||
| }; | ||
| }; | ||
| }; | ||
| }; | ||
|
|
||
| fragment@2 { | ||
| target = <&i2c0if>; | ||
| __overlay__ { | ||
| status = "okay"; | ||
| }; | ||
| }; | ||
|
|
||
| fragment@3 { | ||
| target = <&i2c0mux>; | ||
| __overlay__ { | ||
| status = "okay"; | ||
| }; | ||
| }; | ||
|
|
||
| __overrides__ { | ||
| 5_0_inch_a = <&dsi_panel>, "compatible=waveshare,5.0-dsi-touch-a"; | ||
| 5_5_inch_a = <&dsi_panel>, "compatible=waveshare,5.5-dsi-touch-a"; | ||
| 7_0_inch_a = <&dsi_panel>, "compatible=waveshare,7.0-dsi-touch-a"; | ||
| 7_0_inch_b = <&dsi_panel>, "compatible=waveshare,7.0-dsi-touch-b"; | ||
| 8_0_inch_a = <&dsi_panel>, "compatible=waveshare,8.0-dsi-touch-a"; | ||
| 8_0_inch_a_4lane = <&dsi_panel>, "compatible=waveshare,8.0-dsi-touch-a-4lane"; | ||
| 10_1_inch_a = <&dsi_panel>, "compatible=waveshare,10.1-dsi-touch-a"; | ||
| 10_1_inch_a_4lane = <&dsi_panel>, "compatible=waveshare,10.1-dsi-touch-a-4lane"; | ||
| disable_touch = <&touch>, "status=disabled"; | ||
| invx = <&touch>,"touchscreen-inverted-x?"; | ||
| invy = <&touch>,"touchscreen-inverted-y?"; | ||
| swapxy = <&touch>,"touchscreen-swapped-x-y?"; | ||
| dsi0 = <&dsi_frag>, "target:0=",<&dsi0>, | ||
| <&i2c_frag>, "target:0=",<&i2c_csi_dsi0>; | ||
| }; | ||
| }; | ||
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
There was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
Seeing as we have no control over the interrupt line, I assume it is pulled down so that the touch controller will reliably come out of reset on address 0x5d. (Using the INT line to determine I2C address is a right pain with these Goodix controllers).
There was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
The muc is connected to the INT pin. If necessary, we can set the INT pin level when exiting the reset through the MCU. By default, the I2C address of Goodix controllers is 0x5d
There was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
As long as you have it in hand.
Avoiding a repeat of #6538 would be good, and I've been in exactly the same position with an early version of the Raspberry Pi Touch Display 2.
The vc4-dpi-hyperpixel4 overlay hacks around the issue by defining the touch controller on both addresses, and accepts that one will fail to probe.