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

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Message-ID: <aKjWiU4fQw3k77GR@x1>
Date: Fri, 22 Aug 2025 13:43:53 -0700
From: Drew Fustini <fustini@...nel.org>
To: Michal Wilczynski <m.wilczynski@...sung.com>
Cc: Guo Ren <guoren@...nel.org>, Fu Wei <wefu@...hat.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Bartosz Golaszewski <brgl@...ev.pl>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Frank Binns <frank.binns@...tec.com>,
	Matt Coster <matt.coster@...tec.com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>, Alexandre Ghiti <alex@...ti.fr>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	linux-riscv@...ts.infradead.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
	dri-devel@...ts.freedesktop.org,
	Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: Re: [PATCH v13 3/4] riscv: dts: thead: th1520: Add IMG BXM-4-64 GPU
 node

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@...aro.org>
> Reviewed-by: Drew Fustini <drew@...7.com>
> Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> Acked-by: Matt Coster <matt.coster@...tec.com>
> Signed-off-by: Michal Wilczynski <m.wilczynski@...sung.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