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From: Heiko Stuebner <heiko@sntech.de>
To: Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Alexey Charkov <alchark@gmail.com>
Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] arm64: dts: rockchip: Add DSI LCD display on rk3576-evb1
Date: Mon, 20 Oct 2025 10:31:53 +0200	[thread overview]
Message-ID: <5143458.iZASKD2KPV@phil> (raw)
In-Reply-To: <CABjd4YwVfrzxYKM4cAG=-fMbw9OcQGZD20CVCG8FvC8phDsw+Q@mail.gmail.com>

Am Montag, 20. Oktober 2025, 10:19:51 Mitteleuropäische Sommerzeit schrieb Alexey Charkov:
> On Thu, Sep 25, 2025 at 12:38 AM Alexey Charkov <alchark@gmail.com> wrote:
> >
> > Add support for the Rockchip W552793DBA-V10 LCD+touchscreen assembly which
> > comes physically attached to Rockchip RK3576 EVB1 boards.
> >
> > The display part is driven by the on-chip MIPI DSI controller, and the
> > touchscreen is connected over I2C.
> >
> > Signed-off-by: Alexey Charkov <alchark@gmail.com>
> > ---
> > Note that backlight support is left out for now, as it depends on PWM
> > support [0] which has not yet been merged.
> >
> > A workaround is simply `gpioset -c 0 13=1` to set the respective GPIO
> > pin high and thus to light up the display unconditionally.
> >
> > [0] https://lore.kernel.org/lkml/20250602-rk3576-pwm-v2-0-a6434b0ce60c@collabora.com/
> > ---
> >  arch/arm64/boot/dts/rockchip/rk3576-evb1-v10.dts | 89 ++++++++++++++++++++++++
> >  1 file changed, 89 insertions(+)
> 
> Hi Heiko,
> 
> Any thoughts about this one? Can we perhaps get it merged for -next?

Does the gpio-backlight work on that device?
That would make the gpioset hack unnecessary.


Heiko




WARNING: multiple messages have this Message-ID (diff)
From: Heiko Stuebner <heiko@sntech.de>
To: Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Alexey Charkov <alchark@gmail.com>
Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] arm64: dts: rockchip: Add DSI LCD display on rk3576-evb1
Date: Mon, 20 Oct 2025 10:31:53 +0200	[thread overview]
Message-ID: <5143458.iZASKD2KPV@phil> (raw)
In-Reply-To: <CABjd4YwVfrzxYKM4cAG=-fMbw9OcQGZD20CVCG8FvC8phDsw+Q@mail.gmail.com>

Am Montag, 20. Oktober 2025, 10:19:51 Mitteleuropäische Sommerzeit schrieb Alexey Charkov:
> On Thu, Sep 25, 2025 at 12:38 AM Alexey Charkov <alchark@gmail.com> wrote:
> >
> > Add support for the Rockchip W552793DBA-V10 LCD+touchscreen assembly which
> > comes physically attached to Rockchip RK3576 EVB1 boards.
> >
> > The display part is driven by the on-chip MIPI DSI controller, and the
> > touchscreen is connected over I2C.
> >
> > Signed-off-by: Alexey Charkov <alchark@gmail.com>
> > ---
> > Note that backlight support is left out for now, as it depends on PWM
> > support [0] which has not yet been merged.
> >
> > A workaround is simply `gpioset -c 0 13=1` to set the respective GPIO
> > pin high and thus to light up the display unconditionally.
> >
> > [0] https://lore.kernel.org/lkml/20250602-rk3576-pwm-v2-0-a6434b0ce60c@collabora.com/
> > ---
> >  arch/arm64/boot/dts/rockchip/rk3576-evb1-v10.dts | 89 ++++++++++++++++++++++++
> >  1 file changed, 89 insertions(+)
> 
> Hi Heiko,
> 
> Any thoughts about this one? Can we perhaps get it merged for -next?

Does the gpio-backlight work on that device?
That would make the gpioset hack unnecessary.


Heiko



_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

  reply	other threads:[~2025-10-20  8:32 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-09-24 20:38 [PATCH] arm64: dts: rockchip: Add DSI LCD display on rk3576-evb1 Alexey Charkov
2025-09-24 20:38 ` Alexey Charkov
2025-10-20  8:19 ` Alexey Charkov
2025-10-20  8:19   ` Alexey Charkov
2025-10-20  8:31   ` Heiko Stuebner [this message]
2025-10-20  8:31     ` Heiko Stuebner
2025-10-20  8:50     ` Alexey Charkov
2025-10-20  8:50       ` Alexey Charkov
2025-10-20 12:31       ` Heiko Stuebner
2025-10-20 12:31         ` Heiko Stuebner
2025-10-21 15:08         ` Nicolas Frattaroli
2025-10-21 15:08           ` Nicolas Frattaroli

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