linux-kernel - Re: [PATCH 2/2] arm64: dts: qcom: sm8650: Add support for Oneplus Pad Pro (caihong)

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Message-ID: <20250525105144.1328104-1-mitltlatltl@gmail.com>
Date: Sun, 25 May 2025 18:51:43 +0800
From: Pengyu Luo <mitltlatltl@...il.com>
To: konrad.dybcio@....qualcomm.com
Cc: andersson@...nel.org,
	conor+dt@...nel.org,
	devicetree@...r.kernel.org,
	konradybcio@...nel.org,
	krzk+dt@...nel.org,
	linux-arm-msm@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	mitltlatltl@...il.com,
	robh@...nel.org
Subject: Re: [PATCH 2/2] arm64: dts: qcom: sm8650: Add support for Oneplus Pad Pro (caihong)

On Thu, May 22, 2025 at 11:05 PM Konrad Dybcio <konrad.dybcio@....qualcomm.com> wrote:
> On 5/21/25 10:37 AM, Pengyu Luo wrote:
> > On Wed, May 21, 2025 at 5:54 AM Konrad Dybcio <konrad.dybcio@....qualcomm.com> wrote:
> >> On 5/20/25 6:42 PM, Pengyu Luo wrote:
> >>> The OnePlus Pad Pro is an Android tablet based on the Qualcomm SM8650
> >>> platform. Its device codename is "caihong". This patch adds an initial
> >>> devicetree for basic functionality.
>
> [...]
>
> >>> +&i2c2 {
> >>> +     status = "okay";
> >>> +
> >>> +     /* secondary kinetic,ktz8866@11 */
> >>
> >> You can describe it, the driver sets some nonzero default brightness
> >>
> >
> > But the backlight framework won't index them, which causes sysfs
> > collision when the second instance is registering.
>
> Have you talked to the backlight maintainers? This shouldn't be too
> complex to figure out

Last time I tried to touch ktz8866 source, the reviewer advised me to
add an backlight API to register the secondary devie. Since I am still
working on the other parts when I am free, it remains unresolved. Now
that you reminded me, then I tried to do it.

https://lore.kernel.org/linux-fbdev/20250525104022.1326997-1-mitltlatltl@gmail.com/

Best wishes,
Pengyu