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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Last-TLS-Session-Version: TLSv1.3 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260930_144910_935907_5A6AB1F0 X-CRM114-Status: GOOD ( 17.59 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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@kernel.org/ >>> >>> 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@ew.tq-group.com/ > > 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.