Re: [PATCH v13 3/4] riscv: dts: thead: th1520: Add IMG BXM-4-64 GPU node

From: Drew Fustini <fustini@kernel.org>
To: Matt Coster <matt.coster@imgtec.com>
Cc: Michal Wilczynski <m.wilczynski@samsung.com>,
	Guo Ren <guoren@kernel.org>, Fu Wei <wefu@redhat.com>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Bartosz Golaszewski <brgl@bgdev.pl>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	Frank Binns <frank.binns@imgtec.com>,
	Matt Coster <matt.coster@imgtec.com>,
	Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	Maxime Ripard <mripard@kernel.org>,
	Thomas Zimmermann <tzimmermann@suse.de>,
	David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Alexandre Ghiti <alex@ghiti.fr>,
	Ulf Hansson <ulf.hansson@linaro.org>,
	Marek Szyprowski <m.szyprowski@samsung.com>,
	linux-riscv@lists.infradead.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
	dri-devel@lists.freedesktop.org,
	Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Subject: Re: [PATCH v13 3/4] riscv: dts: thead: th1520: Add IMG BXM-4-64 GPU node
Date: Wed, 27 Aug 2025 15:08:01 -0700	[thread overview]
Message-ID: <aK-BwY8c-OR_WqNk@thelio> (raw)
In-Reply-To: <aKjWiU4fQw3k77GR@x1>

On Fri, Aug 22, 2025 at 01:43:53PM -0700, Drew Fustini wrote:
> On Fri, Aug 22, 2025 at 12:20:17AM +0200, Michal Wilczynski wrote:
> > Add a device tree node for the IMG BXM-4-64 GPU present in the T-HEAD
> > TH1520 SoC used by the Lichee Pi 4A board. This node enables support for
> > the GPU using the drm/imagination driver.
> > 
> > By adding this node, the kernel can recognize and initialize the GPU,
> > providing graphics acceleration capabilities on the Lichee Pi 4A and
> > other boards based on the TH1520 SoC.
> > 
> > Add fixed clock gpu_mem_clk, as the MEM clock on the T-HEAD SoC can't be
> > controlled programatically.
> > 
> > Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
> > Reviewed-by: Drew Fustini <drew@pdp7.com>
> > Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
> > Acked-by: Matt Coster <matt.coster@imgtec.com>
> > Signed-off-by: Michal Wilczynski <m.wilczynski@samsung.com>
> > ---
> >  arch/riscv/boot/dts/thead/th1520.dtsi | 21 +++++++++++++++++++++
> >  1 file changed, 21 insertions(+)
> 
> I've applied this to thead-dt-for-next [1]:
> 
> 0f78e44fb857 ("riscv: dts: thead: th1520: Add IMG BXM-4-64 GPU node")
> 
> Thanks,
> Drew
> 
> [1] https://git.kernel.org/pub/scm/linux/kernel/git/fustini/linux.git/log/?h=thead-dt-for-next

Hi Matt,

Do you know when the dt binding patch will be applied to
the drm-misc/for-linux-next tree?

I applied the dts patch but it is creating a warning in next right now.
If the binding won't show up soon in drm-misc, then I'll remove this dts
patch from next as dtbs_check is now failing in next. I can add it back
once the binding makes it to next.

Thanks,
Drew

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