Re: [PATCH v3 3/6] dt-bindings: display: simple: Add Microtips & Lincolntech Dual-LVDS Panels

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On 16/05/2024 13:06, Aradhya Bhatia wrote:
Hi Liu,

Thanks for reviewing the patch.

On 16/05/24 07:49, Liu Ying wrote:
On 5/15/24 17:51, Aradhya Bhatia wrote:
Add the Microtips Technology USA's MF-101HIEBCAF0 10.1"[0] panel,
MF-103HIEB0GA0 10.25"[1] panel, and Lincoln Technology Solutions'
LCD185-101CT 10.1"[2] panel.

Thes are all dual-lvds panels.

Panel Links:
[0]: https://simplespec.microtipsusa.com/uploads/spec/datasheetFile/2588/13-101HIEBCAF0-S_V1.1_20221104.pdf
[1]: https://simplespec.microtipsusa.com/uploads/spec/datasheetFile/2660/13-103HIEB0GA0-S_V1.0_20211206.pdf

This one mentions some controls in '3. PIN DESCRIPTION' which
don't comply with this binding, like RL, TB, STBYB and RESET.
Note this binding only allows compatible, ports, backlight,
enable-gpios and power-supply properties, nothing more.


Maybe the internal module _can_ support these control options but the
actual panel hardware does not expose any of these controls on its
connector pin-out, and hence has no possibility for additional SW
control. Even for the usage, the device-tree node for the panel only has
"compatible" and "ports" properties defined.

The panel is being used within the confines of a simple panel.

If somehow some modules with those panels would need more control lines,
we'll simply move them out of simple panel bindings & drivers if
required.

Those are perfectly fine as is, we don't want useless description and dead code.

Neil


Regards
Aradhya


[2]: https://lincolntechsolutions.com/wp-content/uploads/2023/04/LCD185-101CTL1ARNTT_DS_R1.3.pdf

Signed-off-by: Aradhya Bhatia <a-bhatia1@xxxxxx>
---
  .../display/panel/panel-simple-lvds-dual-ports.yaml         | 6 ++++++
  1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/panel/panel-simple-lvds-dual-ports.yaml b/Documentation/devicetree/bindings/display/panel/panel-simple-lvds-dual-ports.yaml
index 716ece5f3978..e78160d1aa24 100644
--- a/Documentation/devicetree/bindings/display/panel/panel-simple-lvds-dual-ports.yaml
+++ b/Documentation/devicetree/bindings/display/panel/panel-simple-lvds-dual-ports.yaml
@@ -41,6 +41,12 @@ properties:
        - auo,g190ean01
          # Kaohsiung Opto-Electronics Inc. 10.1" WUXGA (1920 x 1200) LVDS TFT LCD panel
        - koe,tx26d202vm0bwa
+        # Lincoln Technology Solutions, LCD185-101CT 10.1" TFT 1920x1200
+      - lincolntech,lcd185-101ct
+        # Microtips Technology MF-101HIEBCAF0 10.1" WUXGA (1920x1200) TFT LCD panel
+      - microtips,mf-101hiebcaf0
+        # Microtips Technology MF-103HIEB0GA0 10.25" 1920x720 TFT LCD panel
+      - microtips,mf-103hieb0ga0
          # NLT Technologies, Ltd. 15.6" FHD (1920x1080) LVDS TFT LCD panel
        - nlt,nl192108ac18-02d






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