linux-kernel - [PATCH v5 8/8] drm/imagination: Enable PowerVR driver for RISC-V

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Message-Id: <20250618-apr_14_for_sending-v5-8-27ed33ea5c6f@samsung.com>
Date: Wed, 18 Jun 2025 12:22:14 +0200
From: Michal Wilczynski <m.wilczynski@...sung.com>
To: Drew Fustini <drew@...7.com>, 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>,  Michal
	Wilczynski <m.wilczynski@...sung.com>,  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>
Cc: linux-riscv@...ts.infradead.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org, 
	dri-devel@...ts.freedesktop.org
Subject: [PATCH v5 8/8] drm/imagination: Enable PowerVR driver for RISC-V

Several RISC-V boards feature Imagination GPUs that are compatible with
the PowerVR driver. An example is the IMG BXM-4-64 GPU on the Lichee Pi
4A board. This commit adjusts the driver's Kconfig dependencies to allow
the PowerVR driver to be compiled on the RISC-V architecture.

By enabling compilation on RISC-V, we expand support for these GPUs,
providing graphics acceleration capabilities and enhancing hardware
compatibility on RISC-V platforms.

Add a dependency on MMU to fix a build warning on RISC-V configurations
without an MMU and enable COMPILE_TEST to improve build coverage.

Reviewed-by: Ulf Hansson <ulf.hansson@...aro.org>
Signed-off-by: Michal Wilczynski <m.wilczynski@...sung.com>
---
 drivers/gpu/drm/imagination/Kconfig | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/imagination/Kconfig b/drivers/gpu/drm/imagination/Kconfig
index 5f9fff43d6baadc42ebf48d91729bfbf27e06caa..48fd31c031628c70b1e0952271baccf7f4694810 100644
--- a/drivers/gpu/drm/imagination/Kconfig
+++ b/drivers/gpu/drm/imagination/Kconfig
@@ -3,9 +3,10 @@
 
 config DRM_POWERVR
 	tristate "Imagination Technologies PowerVR (Series 6 and later) & IMG Graphics"
-	depends on ARM64
+	depends on (ARM64 || RISCV) || COMPILE_TEST
 	depends on DRM
 	depends on PM
+	depends on MMU
 	select DRM_EXEC
 	select DRM_GEM_SHMEM_HELPER
 	select DRM_SCHED

-- 
2.34.1