On Thu, Feb 27, 2025 at 05:58:02PM +0100, Marek Vasut wrote:
> The instance of the GPU populated in Freescale i.MX95 does require
> release from reset by writing into a single GPUMIX block controller
> GPURESET register bit 0. Implement support for this reset register.
Reviewed-by: Frank Li <Frank.Li@xxxxxxx>
>
> Signed-off-by: Marek Vasut <marex@xxxxxxx>
> ---
> Cc: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxx>
> Cc: Conor Dooley <conor+dt@xxxxxxxxxx>
> Cc: David Airlie <airlied@xxxxxxxxx>
> Cc: Fabio Estevam <festevam@xxxxxxxxx>
> Cc: Krzysztof Kozlowski <krzk+dt@xxxxxxxxxx>
> Cc: Liviu Dudau <liviu.dudau@xxxxxxx>
> Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
> Cc: Maxime Ripard <mripard@xxxxxxxxxx>
> Cc: Pengutronix Kernel Team <kernel@xxxxxxxxxxxxxx>
> Cc: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
> Cc: Rob Herring <robh@xxxxxxxxxx>
> Cc: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
> Cc: Sebastian Reichel <sre@xxxxxxxxxx>
> Cc: Shawn Guo <shawnguo@xxxxxxxxxx>
> Cc: Simona Vetter <simona@xxxxxxxx>
> Cc: Steven Price <steven.price@xxxxxxx>
> Cc: Thomas Zimmermann <tzimmermann@xxxxxxx>
> Cc: devicetree@xxxxxxxxxxxxxxx
> Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
> Cc: imx@xxxxxxxxxxxxxxx
> Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> ---
> drivers/reset/reset-simple.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/drivers/reset/reset-simple.c b/drivers/reset/reset-simple.c
> index 2760678398308..1415a941fd6eb 100644
> --- a/drivers/reset/reset-simple.c
> +++ b/drivers/reset/reset-simple.c
> @@ -133,9 +133,17 @@ static const struct reset_simple_devdata reset_simple_active_low = {
> .status_active_low = true,
> };
>
> +static const struct reset_simple_devdata reset_simple_fsl_imx95_gpu_blk_ctrl = {
> + .reg_offset = 0x8,
> + .active_low = true,
> + .status_active_low = true,
> +};
> +
> static const struct of_device_id reset_simple_dt_ids[] = {
> { .compatible = "altr,stratix10-rst-mgr",
> .data = &reset_simple_socfpga },
> + { .compatible = "fsl,imx95-gpu-blk-ctrl",
> + .data = &reset_simple_fsl_imx95_gpu_blk_ctrl },
> { .compatible = "st,stm32-rcc", },
> { .compatible = "allwinner,sun6i-a31-clock-reset",
> .data = &reset_simple_active_low },
> --
> 2.47.2
>
