Re: [PATCH 8/9] drm/panthor: Add i.MX95 support

Alexander Stein
2025-02-28T10:21:30Z

Hi Marek,

Am Donnerstag, 27. Februar 2025, 17:58:08 CET schrieb Marek Vasut:
> The instance of the GPU populated in Freescale i.MX95 is the
> Mali G310, add support for this variant.
>
> Signed-off-by: Marek Vasut <marex@denx.de>
> ---
> Cc: Boris Brezillon <boris.brezillon@collabora.com>
> Cc: Conor Dooley <conor+dt@kernel.org>
> Cc: David Airlie <airlied@gmail.com>
> Cc: Fabio Estevam <festevam@gmail.com>
> Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
> Cc: Liviu Dudau <liviu.dudau@arm.com>
> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
> Cc: Maxime Ripard <mripard@kernel.org>
> Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
> Cc: Philipp Zabel <p.zabel@pengutronix.de>
> Cc: Rob Herring <robh@kernel.org>
> Cc: Sascha Hauer <s.hauer@pengutronix.de>
> Cc: Sebastian Reichel <sre@kernel.org>
> Cc: Shawn Guo <shawnguo@kernel.org>
> Cc: Simona Vetter <simona@ffwll.ch>
> Cc: Steven Price <steven.price@arm.com>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: devicetree@vger.kernel.org
> Cc: dri-devel@lists.freedesktop.org
> Cc: imx@lists.linux.dev
> Cc: linux-arm-kernel@lists.infradead.org
> ---
> drivers/gpu/drm/panthor/panthor_drv.c | 1 +
> drivers/gpu/drm/panthor/panthor_gpu.c | 1 +
> 2 files changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/panthor/panthor_drv.c b/drivers/gpu/drm/panthor/panthor_drv.c
> index 06fe46e320738..2504a456d45c4 100644
> --- a/drivers/gpu/drm/panthor/panthor_drv.c
> +++ b/drivers/gpu/drm/panthor/panthor_drv.c
> @@ -1591,6 +1591,7 @@ static struct attribute *panthor_attrs[] = {
> ATTRIBUTE_GROUPS(panthor);
>
> static const struct of_device_id dt_match[] = {
> + { .compatible = "fsl,imx95-mali" }, /* G310 */
> { .compatible = "rockchip,rk3588-mali" },
> { .compatible = "arm,mali-valhall-csf" },
> {}
> diff --git a/drivers/gpu/drm/panthor/panthor_gpu.c b/drivers/gpu/drm/panthor/panthor_gpu.c
> index 0f07ef7d9aea7..2371ab8e50627 100644
> --- a/drivers/gpu/drm/panthor/panthor_gpu.c
> +++ b/drivers/gpu/drm/panthor/panthor_gpu.c
> @@ -67,6 +67,7 @@ struct panthor_model {
> }
>
> static const struct panthor_model gpu_models[] = {
> + GPU_MODEL(g310, 0, 0), /* NXP i.MX95 */

Are you sure about 0, 0? With this I get
> [drm] mali-unknown id 0xac74 major 0x0 minor 0x0 status 0x1

Using GPU_MODEL(g310, 10, 4) I get:
> [drm] mali-g310 id 0xac74 major 0x0 minor 0x0 status 0x1

Note the output is GPU_VER_MAJOR() but this table is for GPU_ARCH_MAJOR()
(and the corresponding minor).

Best regards,
Alexander

> GPU_MODEL(g610, 10, 7),
> {},
> };
>

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