Re: [PATCH v5 3/3] arm64: dts: imx95: Add support for Data Modul i.MX95 eDM SBC

From: Marek Vasut

Date: Wed Sep 30 2026 - 19:56:09 EST


On 9/30/26 11:21 PM, Frank Li wrote:
On Wed, Sep 30, 2026 at 09:29:34PM +0200, Marek Vasut wrote:
On 9/30/26 8:57 PM, Frank Li wrote:
On Wed, Sep 30, 2026 at 07:44:13PM +0200, Francesco Dolcini wrote:
On Tue, Sep 29, 2026 at 05:20:27PM +0200, Marek Vasut wrote:
On 9/29/26 4:45 PM, Frank Li wrote:

Hello Frank,

+ backlight_lvds: backlight-lvds {
+ compatible = "pwm-backlight";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_panel_backlight_lvds>;
+ brightness-levels = <0 1 10 20 30 40 50 60 70 75 80 90 100>;
+ default-brightness-level = <7>;
+ enable-gpios = <&gpio2 27 GPIO_ACTIVE_HIGH>;
+ pwms = <&tpm3 3 5000000 0>;
+ /* Disabled by default, unless display board plugged in. */
+ status = "disabled";
+ };

The both backlight is not used in this dts, can you remove it and
add these when it real use.
It's the same thing we do on the other boards, so I would prefer to keep
this consistent:

I agree with Marek, and I would not use the criteria about being used or
not.


Others boards: some has dtso, which use it. And krzy have some concern for
similar case although he have not reply alex's answer.

https://lore.kernel.org/imx/30599533-91de-41fd-9420-3f8693ec92ac@xxxxxxxxxx/

And it is most likely go through nexus connector node to support display
panel in future.

I do not think nexus node will apply to this connector, no.

So I suggest remove it now and add it when need.
Can we please go with consistency between these boards from one vendor ?

Yes, I am keeping consistency, then ask remove it. I applied alex's v2
version. I put v1 link to show krzy's concern.

https://lore.kernel.org/imx/20260319125013.2421621-3-alexander.stein@xxxxxxxxxxxxxxx/

Changes in v2:
* Changed commit message to imperative form
* Remove (currently unused) display and backlight nodes
I sent you a V6 with those nodes removed.