From: Krzysztof Kozlowski <krzk@kernel.org>
To: Vishnu Saini <vishnu.saini@oss.qualcomm.com>
Cc: Neil Armstrong <neil.armstrong@linaro.org>,
Jessica Zhang <jesszhan0024@gmail.com>,
David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Maxime Ripard <mripard@kernel.org>,
Thomas Zimmermann <tzimmermann@suse.de>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Arpit Saini <arpit.saini@oss.qualcomm.com>,
dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, venkata.valluru@oss.qualcomm.com
Subject: Re: [PATCH] dt-bindings: display: panel: ilitek,ili7807s: Allow backlight property
Date: Tue, 27 Oct 2026 15:34:19 +0100 [thread overview]
Message-ID: <c58c89cd-94a5-4776-b186-44c4b1b3c3ab@kernel.org> (raw)
In-Reply-To: <auCDgewe04WKbamD@hu-vishsain-blr.qualcomm.com>
On 27/10/2026 11:57, Vishnu Saini wrote:
> On Tue, Oct 27, 2026 at 09:12:27AM +0100, Krzysztof Kozlowski wrote:
>> On Sun, Oct 25, 2026 at 12:18:17PM +0530, Vishnu Saini wrote:
>>> The DLC0697 panel is lit by a separate backlight device, which is
>>> referenced from the panel node through the common 'backlight'
>>> property.
>>>
>>> Declare 'backlight: true' so the property is explicitly allowed by the
>>> schema.
>>
>> Why do you need to explicitly allow it? Since when?
>>
>> I see no benefit of this patch and commit msg does not explain me what
>> that benefit would be.
> It is required for below DLC panel, when enabling backlight using gpio-backlight driver,
How is it required? You did not really answer, so again:
Why do you need to explicitly allow it?
Answer starts "because ... " and you provide technical arguments, not
wishes.
Best regards,
Krzysztof
next prev parent reply other threads:[~2026-10-27 14:34 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-25 6:48 Vishnu Saini
2026-10-27 8:12 ` Krzysztof Kozlowski
2026-10-27 10:57 ` Vishnu Saini
2026-10-27 14:34 ` Krzysztof Kozlowski [this message]
2026-10-27 18:18 ` Vishnu Saini
2026-10-27 18:24 ` Krzysztof Kozlowski
2026-10-27 18:55 ` Vishnu Saini
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